BOM-DAT/transistor-dat/2SB1204.pdf
... ...
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BOM-DAT/transistor-dat/transistor-dat.md
... ...
@@ -100,8 +100,13 @@ common brand: Infineon
100 100
101 101
102 102
103
+## high power transistor
103 104
105
+- B1204 == [[2SB1204.pdf]]
104 106
107
+用于继电器驱动电路，高速转换电路，及其它大电流开关电路。
108
+
109
+Relay drivers, high-speed inverters, general high-current switching applications.
105 110
106 111
107 112
## un-sorted
... ...
@@ -118,6 +123,11 @@ PBSS5350Z - 50 V, 3 A PNP low VCEsat transistor
118 123
119 124
MMBT3904
120 125
126
+
127
+
128
+
129
+
130
+
121 131
## ref
122 132
123 133
- [[kicad-dat]]
Board-dat/NGS/NGS1108-dat/NGS1108-dat.md
... ...
@@ -1,6 +1,16 @@
1 1
2 2
# NGS1108-dat
3 3
4
+
5
+
6
+
7
+
8
+- module available here: https://www.electrodragon.com/product/ec20-network-module-lte-4g-3g-2g-usb-mini-dongle/
9
+
10
+- [[NGS1109-dat]] - [[NGS1108-dat]]
11
+
12
+
13
+
4 14
* **Note the default version is the data ONLY version**
5 15
* the module information - [[ec20-dat]]
6 16
Board-dat/OPM/OPM1160-dat/2026-02-12-15-50-36.png
... ...
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Board-dat/OPM/OPM1160-dat/OPM1160-dat.md
... ...
@@ -1,9 +1,8 @@
1
-
2 1
# OPM1160-dat
3 2
4
-DC-DC Buck 4 USB Charger Module 8A (#OPM1160)
3
+[DC-DC Buck 4 USB Charger Module 8A (#OPM1160)](https://www.electrodragon.com/product/dc-dc-buck-4-usb-charger-module-8a/)
4
+
5 5
6
-https://www.electrodragon.com/product/dc-dc-buck-4-usb-charger-module-8a/
7 6
8 7
9 8
## demo video
... ...
@@ -19,23 +18,40 @@ https://twitter.com/electro_phoenix/status/1023474043456909312
19 18
- for this module, consider add - Adhesive Solutions on PCBs - [[PCB-Adhesive-dat]]
20 19
- or layered plastic case [[layered-case-dat]]
21 20
22
-## CN
23
-
24
-模块参数：
25
-- 输入电压：DC 8-35V
26
-- 输入电流：6A
27
-- 输出电压：5.2V
28
-- 输出电流：总最大10A，电流自适应，手机单口充电最大2.4A。
29
-- 动态响应速度：300us (负载流流变化5%）
30
-- 转换效率：95%（12V转5.2V3.5A测得，效率跟压差和负载大小有关。）
31
-- 负载调整率：0.2-0.3%（10%-50%负载 12V输入测得）
32
-- 纹波&噪声：120mVP-P（20MHz带宽 12V转5.2V3A测得）
33
-- 开关频率：100KHz
34
-- 空载电流：18mA (12V车5V测得）
35
-- 接线方式：IN输入 OUT输入 接线端子 DC座
36
-- 固定方式:M3*1 M2*2
37
-- 净重：约44克
38 21
22
+## Features
23
+
24
+1. Four independent dedicated charging management IC channels — supports high-current charging for a wide range of phones; fast and reliable charging.
25
+2. Charger identification IC compatible with Apple and Android devices — most phones can reach their fastest supported charging speed.
26
+3. Supports four USB ports charging simultaneously at ~2 A each; large total current and fast charging — total output current up to 10 A.
27
+4. Input MOSFET reverse-polarity protection to improve conversion efficiency and reduce losses.
28
+5. Output over-voltage protection to safeguard connected devices.
29
+6. Wide input voltage range: 8–35 V — suitable for 12 V and 24 V automotive systems.
30
+7. Synchronous-rectification topology reduces heat and improves efficiency (efficiency up to ~96% in ideal conditions).
31
+8. Heavy‑copper, high‑current inductor for low heating and high conversion efficiency.
32
+9. Four high-quality SMD capacitors plus large-capacity MLCCs reduce output ripple and EMI.
33
+10. High-quality double-layer gold-plated USB connectors — approximately twice the lifetime of ordinary USB ports.
34
+
35
+## Specifications
36
+
37
+| Parameter | Value |
38
+| --------------------------- | ------------------------------------------------------------------------------------: |
39
+| Input voltage | DC 8 – 35 V |
40
+| Input current (max) | 6 A (recommended supply capability) |
41
+| Output voltage | 5.2 V (nominal) |
42
+| Output current | Total max 10 A; per-port adaptive current; single-port max ~2.4 A |
43
+| Dynamic response | 300 µs (for 5% load step) |
44
+| Conversion efficiency | ~95% measured (12 V → 5.2 V @ 3.5 A). Actual efficiency depends on VIN−VOUT and load. |
45
+| Load regulation | 0.2 – 0.3% (measured 10%–50% load, 12 V input) |
46
+| Ripple & noise | ~120 mV p‑p (20 MHz bandwidth, measured 12 V → 5.2 V @ 3 A) |
47
+| Switching frequency | 100 kHz |
48
+| Quiescent / no‑load current | ~18 mA (measured from 12 V to 5 V) |
49
+| Connectors / wiring | IN / OUT terminal block and DC jack supported |
50
+| Mounting | M3 × 1, M2 × 2 mounting holes |
51
+| Net weight | ~44 g |
52
+
53
+
54
+![](2026-02-12-15-50-36.png)
39 55
## ref
40 56
41 57
- [[OPM1160]]
Board-dat/SDR/SDR1070-dat/2026-02-12-15-39-51.png
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Board-dat/SDR/SDR1070-dat/2026-02-12-15-40-03.png
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Board-dat/SDR/SDR1070-dat/2026-02-12-15-42-05.png
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Board-dat/SDR/SDR1070-dat/2026-02-12-15-42-15.png
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Board-dat/SDR/SDR1070-dat/SDR1070-dat.md
... ...
@@ -7,6 +7,58 @@
7 7
8 8
- [[VNH2SP30-dat]]
9 9
10
+## wiring
11
+
12
+![](2026-02-12-15-39-51.png)
13
+
14
+
15
+![](2026-02-12-15-40-03.png)
16
+
17
+
18
+硬件引脚排列
19
+AO：电机1的使能引|脚
20
+A1：电机2的使能引|脚A2：电机电流传感器1
21
+A3：电机电流传感器2
22
+D7：顺时针（CW）表示电机1D8：电机1的逆时针 (CCW)
23
+D4：顺时针（CW）表示电机2D9：电机2的逆时针(CCW)
24
+D5：用于电机1的PWM
25
+D6：用于电机2的PWM
26
+
27
+
28
+使电机转动：
29
+
30
+电机0
31
+- 停止：D70, D80&D71，D71
32
+- CCW : D70, D81
33
+- CW: D71, D80
34
+电机1
35
+- 停止：D40，D90&D41，D91
36
+- CCW : D40, D91
37
+- CW: D41, D90
38
+
39
+大电流 30A VNH2SP30步进电机驱动模块大电流 30A 步进电机驱动
40
+
41
+描述：
42
+
43
+- 这是一款专为大马力电机驱动的模块，模块强大的性能使其只需要一对VNH2SP30就可代替L298H桥提供全桥电机驱动，同时我们加强了电路的负载能力使其可以驱动一对大电流电机！模块输入端和电机接口端都采用了5mm的接口端子，使其方便连接大规格的电线。当需要用到超高电流的场合时，可将电线直接焊接到模块上代替
44
+- 用接线端子连接（视情况而定）。当驱动电流大于扇。
45
+- 6A时芯片就会发热，为了提高性能，最好接个散热片或散热风
46
+
47
+模块特性：
48
+- 最大输入电压：- 16V
49
+- 峰值驱动电流：- 30A
50
+- 可持续启动电流：- 14A
51
+- 最大 PMW频率：20 kHz输出阻抗仅为 19m Ω
52
+- 过电流可通过 arduino 模拟输入脚检测带温保护过压和欠压保护
53
+
54
+![](2026-02-12-15-42-05.png)
55
+
56
+![](2026-02-12-15-42-15.png)
57
+
58
+
59
+
60
+
61
+
10 62
11 63
## ref
12 64
Board-dat/SMO/SMO1095-dat/SMO1095-DAT.md
... ...
@@ -1,8 +1,12 @@
1 1
2 2
3
-# SMO1095 Non-contact Water Liquid Level Sensor
3
+# SMO1095-dat
4
+
5
+
6
+- [[sensor-object-dat]] - [[sensor-dat]] - [[SMO1095-dat]]
7
+
8
+[Non-contact Water Liquid Level Sensor](https://www.electrodragon.com/product/non-contact-liquid-level-sensor/)
4 9
5
-https://www.electrodragon.com/product/non-contact-liquid-level-sensor/
6 10
7 11
## Use with metal containter
8 12
- need to drill hole(s) on the container
Board-dat/USB/USB1003-DAT/USB1003-DAT.md
... ...
@@ -1,9 +1,9 @@
1 1
2 2
# USB1003 DAT
3 3
4
-USB HID to UART, RS-485 Extension Board
4
+[USB HID to UART, RS-485 Extension Board](https://www.electrodragon.com/product/usb-hid-to-uart-rs-485-extension-board/)
5
+
5 6
6
-https://www.electrodragon.com/product/usb-hid-to-uart-rs-485-extension-board/
7 7
8 8
- 5V/GND external power supply
9 9
- blue box: chip output to USB
Chip-cn-dat/BouffaloLab-dat/BL616_BL618_DS_1.5_en.pdf
... ...
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Chip-cn-dat/BouffaloLab-dat/BouffaloLab-dat.md
... ...
@@ -1,9 +1,16 @@
1 1
2 2
# BouffaloLab-dat
3 3
4
-- [[BL602-dat]]
4
+- [[BL602-dat]] - [[BL616-dat]] - [[XT-BL602-DAT]]
5
+
6
+
7
+
8
+- [[bouffalolab-dat]] - [[W616-dat]] - [[W806-dat]] - [[MCU-dat]] - [[wifi-dat]]
9
+
10
+- [[W600-dat]]
11
+
12
+
5 13
6
-- [[XT-BL602-DAT]]
7 14
8 15
## docs
9 16
Chip-cn-dat/BouffaloLab-dat/W616-dat/BL616_BL618_DS_1.5_en.pdf
... ...
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Chip-cn-dat/BouffaloLab-dat/W616-dat/W616-dat.md
... ...
@@ -0,0 +1,6 @@
1
+
2
+# W616-dat
3
+
4
+- [[BL616_BL618_DS_1.5_en.pdf]]
5
+
6
+
Chip-cn-dat/BouffaloLab-dat/W806-dat/2026-02-12-14-41-56.png
... ...
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Chip-cn-dat/BouffaloLab-dat/W806-dat/W806-dat.md
... ...
@@ -0,0 +1,42 @@
1
+# W806-dat
2
+
3
+![](2026-02-12-14-41-56.png)
4
+
5
+- [[bouffalolab-dat]] - [[W616-dat]] - [[W806-dat]] - [[MCU-dat]] - [[wifi-dat]]
6
+
7
+## W806 Overview
8
+
9
+The W806 is a highly integrated SoC that contains a 32-bit CPU and a wide range of digital interfaces including UART, GPIO, SPI, SDIO, I2C, I2S, PSRAM, 7816, ADC, LCD, and touch sensor inputs. It supports a TEE security engine and multiple hardware cryptographic algorithms, and includes DSP and floating-point units. The chip provides secure boot/firmware encryption, firmware signing, secure debug and secure firmware upgrade features to protect software integrity. Typical application areas include smart home, smart toys, industrial control, and medical monitoring devices.
10
+
11
+Package
12
+
13
+- QFN-56, 6 mm × 6 mm
14
+
15
+## MCU Features
16
+
17
+- Core: 32-bit XT804 processor, up to 240 MHz; includes DSP and floating-point unit
18
+- On-chip memory: 1 MB flash and 288 KB RAM
19
+- External memory: PSRAM interface supporting up to 64 MB external PSRAM
20
+- Serial interfaces: up to 6 high-speed UARTs
21
+- ADC: 4 × 16-bit ADC channels, up to 1 kSPS per channel
22
+- SPI: one high-speed SPI (slave) up to 50 MHz; plus one master/slave SPI
23
+- SDIO: 1 × SDIO_HOST (supports SDIO 2.0, SDHC, MMC4.2) and 1 × SDIO_DEVICE (SDIO 2.0, up to ~200 Mbps)
24
+- I2C: 1 controller
25
+- GPIO: up to 44 GPIOs
26
+- PWM: 5 PWM channels
27
+- I2S: 1 duplex I2S controller
28
+- LCD: integrated LCD controller (supports 4 × 32 interface)
29
+
30
+## Security Features
31
+
32
+- Integrated TEE (Trusted Execution Environment) security engine — supports separation of secure and non-secure worlds
33
+- Configurable security attributes for memory and internal modules to prevent access from non-secure code
34
+- Secure boot and firmware signing for trusted boot and secure upgrades
35
+- Firmware encryption support with asymmetric key distribution for improved key security
36
+- Hardware crypto acceleration: common cipher/hash engines (examples: RC4/256-like, AES-128, DES/3DES, SHA1/MD5, CRC32, RSA-2048) and a true random number generator
37
+
38
+## Power and Low-Power Modes
39
+
40
+- Single-supply operation: 3.3 V
41
+- Supported power modes: Run, Sleep, Standby, Power-off
42
+- Standby current: < 10 µA (typical)
... ...
\ No newline at end of file
Chip-cn-dat/Espressif-dat/ESP32-dat/ESP32-board-dat/ESP32-dev-board-dat/ESP32-dev-board-dat.md
... ...
@@ -3,4 +3,12 @@
3 3
4 4
- [[NWI1100-dat]] - [[NWI1206-dat]]
5 5
6
-Module - [[ESP32-WROOM-dat]]
... ...
\ No newline at end of file
0
+- [[NWI1145-dat]] - [[esp32-dev-board-dat]] - [[ESP32-pico-dat]]
1
+
2
+
3
+Module - [[ESP32-WROOM-dat]]
4
+
5
+
6
+## ref
7
+
8
+- [[ESP32-dat]]
Chip-cn-dat/Espressif-dat/ESP32-dat/ESP32-chip-dat/ESP32-old-dat/esp32-pico-dat/esp32-pico-dat.md
... ...
@@ -1,4 +1,5 @@
1 1
2 2
# esp32-pico-d4
3 3
4
-- [[NWI1145-dat]]
... ...
\ No newline at end of file
0
+- [[NWI1145-dat]] - [[esp32-dev-board-dat]] - [[ESP32-pico-dat]]
1
+
Chip-cn-dat/SIMCOM-dat/SIMCOM-dat.md
... ...
@@ -34,7 +34,7 @@ https://www.electrodragon.com/w/Category:SIMCOM#Schematic
34 34
35 35
- [[SIM7070-dat]]
36 36
37
-- [[SIM7080-dat]]
37
+- [[SIM7080-dat]] - [[Y7080E-dat]]
38 38
39 39
40 40
## Module Comparision
Chip-cn-dat/STC-dat/2026-02-12-14-51-26.png
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Chip-cn-dat/STC-dat/STC-dat.md
... ...
@@ -33,6 +33,43 @@ STC8H1K08-36I-QFN20 Enhanced 1T 8051 Microcontroller (MCU)
33 33
STC8G1K08A-36I-DFN8
34 34
35 35
36
+产品详情：
37
+
38
+STC8H系列单片机是不需要外部品振和外部复位的单片机，是以超强抗干扰／超低价／高速／低功耗为目标的8051单片机，在相同的工作频率下，STC8H系列单片机比传统的8051约快12倍（速度快11.2~13.2倍），依次按顺序执行完全部的111条指令，STC8H系列单片机仅147个时钟，而传统8051则需要1944个时钟。STC8H系列单片机是STC生产的单时钟/机器周期（1T）的单片机，是宽电压/高速/高可靠低功耗/较强抗干扰的新一代8051单片机，超级加密。指令代码完全兼容传统8051
39
+
40
+内核：
41
+- 1.超高速32位.8051内核（1T），比传统8051约快70倍以上
42
+- 2.49个中断源，4级中断优先级
43
+- 3.支持在线仿真
44
+
45
+![](2026-02-12-14-51-26.png)
46
+
47
+SCH
48
+
49
+![](2026-02-12-14-58-19.png)
50
+
51
+SCH 2
52
+
53
+![](2026-02-12-15-00-44.png)
54
+
55
+
56
+SCH 3 == 2UART - [[serial-dat]] - [[STC-dat]]
57
+
58
+![](2026-02-12-15-05-15.png)
59
+
60
+SCH 4 == [[CAN-dat]] - [[PWM-dat]] - [[DAC-dat]] - [[STC-dat]]
61
+
62
+
63
+![](2026-02-12-15-08-40.png)
64
+
65
+SCH 5 == [[Oscilloscope-dat]] - [[display-dat]]
66
+
67
+![](2026-02-12-15-15-39.png)
68
+
69
+SCH 6 == [[touch-dat]]
70
+
71
+
72
+![](2026-02-12-15-22-28.png)
36 73
37 74
38 75
## APP
... ...
@@ -59,8 +96,16 @@ install keil header files
59 96
- [[Keil-C51-dat]]
60 97
61 98
99
+## program
100
+
101
+![](2026-02-12-14-51-51.png)
62 102
63 103
104
+ISP下载步骤： - [[ISP-dat]]
105
+- 1.给目标芯片停电
106
+- 2.点击STC-ISP下载软件中“下载/编程”按钮
107
+- 3.给目标芯片上电
108
+- 4.开始ISP 下载
64 109
65 110
66 111
Chip-cn-dat/WCH-dat/CH582-dat/2026-02-12-14-44-53.png
... ...
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Chip-cn-dat/WCH-dat/CH582-dat/CH582-dat.md
... ...
@@ -3,3 +3,34 @@
3 3
4 4
BLE5.3 60MHz RAM:32KB ROM:448KB
5 5
6
+![](2026-02-12-14-44-53.png)
7
+
8
+
9
+产品特点
10
+
11
+32位RISC处理器
12
+
13
+支持RV32IMAC指令集，支持硬件乘法和除法32KBSRAM，512KBFLASH，支持ICP、ISP和IAP，支持OTA无线升级内置2.4GHZRF收发器和基带及链路控制支持BLE5.3支持2MBPS、1MBPS、500KBPS.125KBPS接收灵敏-98DBM可编程+7DBM发送功率提供协议栈和应用层API
14
+
15
+- 内置温度传感器
16
+- 内置RTC，支持定时和触发两种模式提供2组USB2.0全速HOST/DEVICE提供14通道触摸按键
17
+- 提供14通道12位ADC
18
+- 提供4组UART，2组SPI，12路PWM，1路IIC40个GPIO，其中4个支持5V信号输入
19
+- 最低支持1.7V电源电压
20
+- 内置AES-128加解密单元，芯片唯一ID
21
+
22
+芯片概述
23
+
24
+CH582/3是集成BLE无线通讯的32位RISC微控制器。片上集成2MBPS低功耗蓝牙BLE通讯模块、2个全速USB主机和设备控制器及收发器、2个SPI、4个串口、ADC、触摸按键检测模块、RTC等丰富的外设资源。
25
+
26
+
27
+![](2026-02-12-14-47-13.png)
28
+
29
+- [[WCH-SDK-dat]]
30
+
31
+
32
+
33
+
34
+## ref
35
+
36
+- [[wch-dat]]
... ...
\ No newline at end of file
Chip-cn-dat/YHDC-dat/YHDC-dat.md
... ...
@@ -3,6 +3,9 @@
3 3
4 4
- arduino shield - [[DAS1010-dat]]
5 5
6
+
7
+
8
+
6 9
## SCT Split Core Current Transformer
7 10
8 11
- [[SVC1010-dat]] - [[SVC1008-dat]]
Chip-cn-dat/avia-dat/HX711-dat/HX711-dat.md
... ...
@@ -24,4 +24,11 @@ FEATURES
24 24
25 25
## APPs
26 26
27
-![](2025-05-08-17-29-50.png)
... ...
\ No newline at end of file
0
+![](2025-05-08-17-29-50.png)
1
+
2
+- [[weight-dat]]
3
+
4
+
5
+## ref
6
+
7
+
Chip-cn-dat/quectel-dat/ec20-dat/ec20-dat.md
... ...
@@ -2,10 +2,15 @@
2 2
3 3
## EC20
4 4
5
-- module available here: https://www.electrodragon.com/product/ec20-network-module-lte-4g-3g-2g-usb-mini-dongle/
6 5
7 6
8 7
8
+
9
+
10
+- module available here: https://www.electrodragon.com/product/ec20-network-module-lte-4g-3g-2g-usb-mini-dongle/
11
+
12
+- [[NGS1109-dat]] - [[NGS1108-dat]]
13
+
9 14
## About EC20 Modules
10 15
11 16
EC20 R2.0 is the recently launched Cat 4 LTE wireless communication module from Quectel. It adopts LTE 3GPP Rel.11 technology and supports a maximum downlink rate of 150Mbps and a maximum uplink rate of 50Mbps. It is also compatible with the UMTS/HSPA+ UC20 module in the package. And the long-distance communication multi-network standard LTE Cat 3 module enables seamless switching between 3G networks and 4G networks.
Chip-dat/PIC-dat/PIC-dat.md
... ...
@@ -55,6 +55,13 @@ PIC12F1572
55 55
| **Low-Power Features** | Basic Low-Power Modes | nanoWatt XLP Technology |
56 56
57 57
58
+## program
59
+
60
+- [[PIC-sdk-dat]] - [[pickit-dat]] - [[PIC-dat]]
61
+
62
+
63
+
64
+
58 65
## ref
59 66
60 67
- [[MCU-dat]]
... ...
\ No newline at end of file
Chip-dat/ST-dat/STM32-dat/STM32-dat.md
... ...
@@ -7,6 +7,9 @@
7 7
8 8
- [[ARM-dat]]
9 9
10
+
11
+
12
+
10 13
## chips
11 14
12 15
- [[STM32F042-dat]]
... ...
@@ -22,6 +25,14 @@
22 25
- STM32F401CCU6
23 26
24 27
28
+## STM32-F0x
29
+
30
+- 030
31
+- 042
32
+- 070
33
+
34
+
35
+
25 36
26 37
## Boards
27 38
Chip-dat/ST-dat/VNH2SP30-dat/VNH2SP30-dat.md
... ...
@@ -0,0 +1,10 @@
1
+
2
+
3
+# VNH2SP30-dat
4
+
5
+The VNH2SP30-E is a high-current, automotive-grade full-bridge motor driver designed for bidirectional control of a single DC motor. It operates between 5.5V and 16V, supporting up to 30A peak and 12-14A continuous current with proper heat sinking. The module features PWM speed control, current sensing, and built-in protection against thermal overload and overvoltage.
6
+
7
+
8
+## board
9
+
10
+- [[SDR1070-dat]]
... ...
\ No newline at end of file
Chip-dat/TI-dat/MSP430-dat/MSP430-dat.md
... ...
@@ -0,0 +1,16 @@
1
+
2
+# MSP430-dat
3
+
4
+MIXED SIGNAL MICROCONTROLLER
5
+
6
+https://www.ti.com/lit/ds/symlink/msp430g2553.pdf?ts=1770797613953
7
+
8
+
9
+MSP430 is a family of microcontrollers designed and manufactured by Texas Instruments. The main focus in the MSP430 devices is the ultra-low-power consumption. There is a huge portfolio of these 16-bit RISC core devices (different peripherals, memory organization, power, temperature ranges, etc.).
10
+
11
+MSP430 devices can run up to 25Mhz and the active power consumption of the most capable MSP430 chip is less than 500µA per MHz - that can be lowered even less if you disable the perihperals that you don't use or if you set up the different sleep modes. This makes them perfect for portable and hand-held devices.
12
+
13
+
14
+## ref
15
+
16
+- [[ti-dat]] - [[mcu-dat]]
... ...
\ No newline at end of file
Chip-dat/TI-dat/TI-Network-dat/CC2530-dat/CC2530-dat.md
... ...
@@ -6,3 +6,5 @@
6 6
7 7
* CC2530F256RHAR
8 8
* 2.4-GHz IEEE 802.15.4
9
+
10
+
Circuits-dat/protection-dat/power-protection-dat/2025-03-24-19-39-56.png
... ...
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Circuits-dat/protection-dat/power-protection-dat/2025-07-10-18-53-28.png
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Circuits-dat/protection-dat/power-protection-dat/2025-09-04-18-43-10.png
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Circuits-dat/protection-dat/power-protection-dat/2026-02-11-02-12-27.png
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Circuits-dat/protection-dat/power-protection-dat/current-limit-switch-dat/current-limit-switch-dat.md
... ...
@@ -1,8 +0,0 @@
1
-
2
-# current-limit-switch-dat
3
-
4
-MAX4773 == 200mA/500mA Selectable Current-Limit Switches
5
-
6
-https://www.analog.com/en/products/max4773.html
7
-
8
-- [[diodes-dat]]
... ...
\ No newline at end of file
Circuits-dat/protection-dat/power-protection-dat/power-protection-Vmotor-dat/2025-06-01-17-51-12.png
... ...
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Circuits-dat/protection-dat/power-protection-dat/power-protection-Vmotor-dat/power-protection-Vmotor-dat.md
... ...
@@ -1,32 +0,0 @@
1
-
2
-
3
-# general battery protection
4
-
5
-- low voltage detection
6
-- [[battery-protection-dat]] - short circuit - [[SCP-protection-dat]]
7
-- reverse-direction protection - ? [[RDP-protection-dat]]
8
-
9
-- [[CN3305-dat]]
10
-
11
-# power-protection-Vmotor-dat
12
-
13
-Example 2. for Motor Power Input
14
-
15
-
16
-
17
-![](2025-06-01-17-51-12.png)
18
-
19
-- reverse-votlage-protection == [[mosfet-dat]]
20
-- voltage [[diode-zener-dat]] 6.8V - [[diode-dat]] == [[OVP-dat]] == over-voltage protection
21
-- inrush-protection == 1R + 10UF
22
-- [[decoupling-capacitor-dat]]: C3 = 0.1UF + C4 == 0.47UF
23
-
24
-
25
-
26
-- ref == [[TB6612-dat]]
27
-
28
-
29
-
30
-## ref
31
-
32
-- [[power-protection-dat]]
... ...
\ No newline at end of file
Circuits-dat/protection-dat/power-protection-dat/power-protection-dat.md
... ...
@@ -1,228 +0,0 @@
1
-
2
-
3
-
4
-
5
-# power-protection-dat
6
-
7
-- [[protection-dat]]
8
-
9
-- [[power-protection-Vmotor-dat]]
10
-
11
-- [[ac-mains-dat]]
12
-
13
-## Power Protection
14
-
15
-- overload
16
-- short-circuit-protection - [[SCP-protection-dat]]
17
-
18
-- over-current protection. - [[OCP-protection-dat]]
19
-- over-temperature protection == overheat - [[OTP-protection-dat]]
20
-- over-voltage protection - [[OVP-protection-dat]]
21
-- reverse-direction protection - ? [[RDP-protection-dat]]
22
-
23
-
24
-
25
-- [[power-protection-Vmotor-dat]] - [[battery-protection-dat]]
26
-
27
-- inrush + anti-reverse protection
28
-
29
-## chip solutions
30
-
31
-- [[SY6280-dat]]
32
-
33
-- [[richtek-dat]]
34
-
35
-
36
-
37
-
38
-
39
-## inrush protection
40
-
41
-![](2026-02-11-02-12-27.png)
42
-
43
-
44
-
45
-
46
-
47
-
48
-## Input protection 2 for +12V
49
-
50
-![](2025-09-04-18-43-10.png)
51
-
52
-Ideal diode to prevent reverse polarity at the input
53
-
54
-
55
-## Input protection
56
-
57
-![](2025-07-10-18-53-28.png)
58
-
59
-- [[SB1045-dat]] - [[sensor-NTC-dat]] == NTC10D-11
60
-
61
-- [[sensor-dat]]
62
-
63
-The input protection circuit uses two main components:
64
-
65
-- **NTC10D-11 (NTC Thermistor):**
66
- When power is first applied, this thermistor has a high resistance, which limits the inrush current to downstream components (such as large capacitors or sensitive ICs). As it heats up from current flow, its resistance drops, allowing normal operation with minimal voltage drop.
67
-
68
-- **SB1045L (Schottky Diode):**
69
- This diode is oriented to allow current to flow only in the correct direction. If the power supply is connected in reverse, the diode blocks the current, preventing damage to the rest of the circuit.
70
-
71
-**Summary:**
72
-- The NTC thermistor protects against inrush current at power-on.
73
-- The Schottky diode protects against reverse polarity.
74
-- Together, they ensure only safe, properly oriented power reaches the back end of the circuit.
75
-
76
-
77
-## reverse-votlage-protection
78
-
79
-![](2025-03-24-19-39-56.png)
80
-
81
-
82
-
83
-
84
-### Inrush Protection
85
-
86
-#### 🔧 1. Current Limiting for Transients / Inrush
87
-
88
-- When power is applied from **VMOT**, the capacitors (C1, C3, C4) initially act as short circuits.
89
-- R2 (1 Ω) limits the **inrush current** that charges capacitor **C1 (10 µF)**.
90
-- This protects components and reduces voltage spikes or noise.
91
-
92
-#### 🎛️ 2. Filtering / Decoupling
93
-
94
-- R2 and C1 form a **low-pass RC filter**.
95
-- This filter smooths out high-frequency noise from the supply line.
96
-- It helps ensure a stable voltage at the **VM** output node.
97
-
98
-- [[low-pass-rc-filter-dat]]
99
-
100
-
101
-## reverse connection
102
-
103
-In circuit board design, protecting against reverse polarity (reverse connection) is crucial to prevent damage to components or the entire circuit when the power supply is connected incorrectly. Here are some common methods for reverse polarity protection:
104
-
105
-### Diode-Based Protection:
106
-
107
-Series Diode: Place a diode in series with the power line (Vcc or GND). When the power is connected correctly, the diode conducts, allowing current to flow. If the power is reversed, the diode blocks the current. The downside is a voltage drop across the diode (about 0.7V for a silicon diode or 0.2V for a Schottky diode), which can affect power efficiency.
108
-Parallel Diode with Fuse: A diode is connected in reverse across the power input. If the power is connected incorrectly, the diode conducts and shorts the power supply. A fuse is used in series to blow and cut off the current, protecting the circuit. However, the fuse needs replacement after it blows.
109
-
110
-### P-Channel MOSFET Reverse Protection:
111
-
112
-A P-channel MOSFET is placed between the positive power input and the circuit. When the power is connected correctly, the source of the MOSFET is at a higher potential than the gate, so the MOSFET conducts. If the power is reversed, the MOSFET is turned off, preventing current from flowing. This method is highly efficient with minimal voltage drop.
113
-
114
-- [[mosfet-dat]]
115
-
116
-
117
-### and for N-channel Mosfet: Correct Low-Side N-Channel MOSFET Configuration:
118
-
119
-- Source: Should be connected to ground (or the negative side of the load).
120
-- Drain: Should be connected to the negative side of the load.
121
-- Gate: Needs to be driven by a voltage higher than the source (which is ground in this case) to turn the MOSFET on.
122
-
123
-### Dedicated Reverse Polarity Protection IC:
124
-
125
-There are integrated circuits (ICs) specifically designed for reverse polarity protection, such as Maxim Integrated's MAX1614. These ICs typically include detection and switching functions, automatically disconnecting the power when reverse polarity is detected.
126
-
127
-### Physical Connector Design:
128
-
129
-Using connectors that are physically asymmetric, like USB-C or polarized DC jacks, ensures that the power supply can only be connected in the correct orientation. This is a straightforward method to prevent reverse polarity.
130
-
131
-
132
-## Circuit Protection
133
-
134
-
135
-
136
-To prevent damage to downstream circuits, several design strategies and protective measures can be implemented to guard against overcurrent, overvoltage, and other fault conditions. Here are some common approaches:
137
-
138
-1. Overcurrent Protection: (OC)
139
-
140
-**Fuse**: A traditional protection component that cuts off current when it blows. It’s suitable for one-time protection but requires replacement after activation.
141
-
142
-**Resettable Fuse (PTC)**: A PTC (positive temperature coefficient) fuse increases its resistance when too much current flows. Once the fault clears, it resets itself. This is useful for repeated protection.
143
-
144
-**Current-Limiting Resistor**: A simple resistor can limit the amount of current flowing to downstream circuits. This is a basic solution but may affect performance.
145
-
146
-**Overcurrent Detection and Shutdown (Current-Sensing Circuit)**: Using a current-sensing circuit (e.g., a shunt resistor + op-amp), it detects when the current exceeds a threshold and shuts down the power with a MOSFET or relay.
147
-
148
-2. Overvoltage Protection: (OV)
149
-
150
-**TVS Diode (Transient Voltage Suppression Diode)**: A TVS diode is placed across the power line. When the voltage spikes, it clamps the excess voltage to a safe level, protecting the circuit.
151
-
152
-**Zener Diode**: A Zener diode can regulate voltage. When the input voltage exceeds its breakdown voltage, it conducts and clamps the voltage to protect the circuit.
153
-
154
-**Voltage Detection IC**: These ICs monitor the input voltage, and if it exceeds safe limits, they either shut down the power or trigger a protection mechanism.
155
-
156
-3. Overtemperature Protection: (OT)
157
-
158
-**Thermistors (NTC/PTC)**: Thermistors change resistance with temperature. In case of overheating, their resistance increases, limiting current flow or triggering protective circuits.
159
-
160
-**Temperature-Sensing ICs**: Temperature sensors (e.g., NTC, PTC, or specialized ICs) monitor real-time temperature. If it exceeds a threshold, they shut down the load or power source to protect the circuit.
161
-
162
-4. Inrush Current Protection:
163
-
164
-**Soft-Start Circuit**: Using MOSFETs and capacitors, this circuit gradually ramps up the power, preventing large inrush currents when the circuit first powers on.
165
-
166
-**NTC Inrush Current Limiter:** An NTC thermistor initially limits the inrush current. As the circuit stabilizes, its resistance decreases, allowing normal current flow.
167
-
168
-5. Isolation Protection:
169
-
170
-**Optocouplers**: Optocouplers provide signal isolation between circuits, preventing high voltage or abnormal signals from damaging downstream components.
171
-
172
-**Transformer Isolation**: Transformers can isolate power circuits, protecting the downstream components from high voltage spikes or electrical noise.
173
-
174
-6. Undervoltage Protection:
175
-
176
-**Undervoltage Lockout (UVLO) Circuit**: This circuit disconnects power when the input voltage falls below a safe operating range, preventing malfunctions or damage due to insufficient power.
177
-
178
-7. Reverse Polarity Protection:
179
-
180
-**MOSFET Reverse Polarity Protection**: Using a P-channel or N-channel MOSFET can prevent damage if the power is connected in reverse, as the MOSFET will automatically block current flow in the wrong direction.
181
-
182
-8. Using Protection ICs:
183
-
184
-There are integrated circuits specifically designed for power protection, offering multiple safeguards like overvoltage, overcurrent, overtemperature, and short-circuit protection. An example is the TPS series from Texas Instruments, which simplifies the design with built-in protections.
185
-
186
-
187
-
188
-## 🐢 Slew Rate Controlled
189
-
190
-- **Slew Rate**: How quickly the voltage goes from 0V to full power.
191
-- **Slew Rate Controlled**: The switch turns **on gradually**, not instantly.
192
-
193
-### 🟢 Why is this useful?
194
-
195
-- Prevents **large current spikes**.
196
-- Protects sensitive components.
197
-- Reduces **electrical noise** or interference.
198
-
199
-💡 Think of it like **slowly turning on a water faucet** instead of opening it fully right away — less splashing!
200
-
201
-
202
-
203
-
204
-## solutions
205
-
206
-### AP2280
207
-
208
-Single Channel Slew Rate Controlled Load Switch
209
-
210
-- Wide input voltage range: 1.5V – 6V
211
-- Low RDS(ON): 80mΩ typical @ 5V
212
-- Turn-on slew rate controlled
213
-- AP2280-1: 100us turn-on rise time
214
-- AP2280-2: 1ms turn-on rise time
215
-- Very low turn-on quiescent current: << 1uA
216
-- Fast load discharge pin
217
-- Temperature range -40ºC to 85°C
218
-- SOT25 and DFN2018-6: Available in “Green” Molding Compound (No Br, Sb)
219
-- Lead Free Finish/ RoHS Compliant (Note 1)
220
-
221
-
222
-
223
-
224
-
225
-## ref
226
-
227
-- [[power-dat]]
228
-
Circuits-dat/protection-dat/protection-power-dat/2025-03-24-19-39-56.png
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Circuits-dat/protection-dat/protection-power-dat/current-limit-switch-dat/current-limit-switch-dat.md
... ...
@@ -0,0 +1,8 @@
1
+
2
+# current-limit-switch-dat
3
+
4
+MAX4773 == 200mA/500mA Selectable Current-Limit Switches
5
+
6
+https://www.analog.com/en/products/max4773.html
7
+
8
+- [[diodes-dat]]
... ...
\ No newline at end of file
Circuits-dat/protection-dat/protection-power-dat/power-protection-Vmotor-dat/2025-06-01-17-51-12.png
... ...
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Circuits-dat/protection-dat/protection-power-dat/power-protection-Vmotor-dat/power-protection-Vmotor-dat.md
... ...
@@ -0,0 +1,32 @@
1
+
2
+
3
+# general battery protection
4
+
5
+- low voltage detection
6
+- [[battery-protection-dat]] - short circuit - [[SCP-protection-dat]]
7
+- reverse-direction protection - ? [[RDP-protection-dat]]
8
+
9
+- [[CN3305-dat]]
10
+
11
+# power-protection-Vmotor-dat
12
+
13
+Example 2. for Motor Power Input
14
+
15
+
16
+
17
+![](2025-06-01-17-51-12.png)
18
+
19
+- reverse-votlage-protection == [[mosfet-dat]]
20
+- voltage [[diode-zener-dat]] 6.8V - [[diode-dat]] == [[OVP-dat]] == over-voltage protection
21
+- inrush-protection == 1R + 10UF
22
+- [[decoupling-capacitor-dat]]: C3 = 0.1UF + C4 == 0.47UF
23
+
24
+
25
+
26
+- ref == [[TB6612-dat]]
27
+
28
+
29
+
30
+## ref
31
+
32
+- [[power-protection-dat]]
... ...
\ No newline at end of file
Circuits-dat/protection-dat/protection-power-dat/protection-power-dat.md
... ...
@@ -0,0 +1,230 @@
1
+
2
+
3
+
4
+
5
+# power-protection-dat
6
+
7
+- [[protection-dat]]
8
+
9
+- [[power-protection-Vmotor-dat]]
10
+
11
+- [[ac-mains-dat]]
12
+
13
+## Power Protection
14
+
15
+- overload
16
+- short-circuit-protection - [[SCP-protection-dat]]
17
+
18
+- over-current protection. - [[OCP-protection-dat]]
19
+- over-temperature protection == overheat - [[OTP-protection-dat]]
20
+- over-voltage protection - [[OVP-protection-dat]]
21
+- reverse-direction protection - ? [[RDP-protection-dat]]
22
+
23
+
24
+
25
+- [[power-protection-Vmotor-dat]] - [[battery-protection-dat]]
26
+
27
+- inrush + anti-reverse protection
28
+
29
+## chip solutions
30
+
31
+- [[SY6280-dat]]
32
+
33
+- [[richtek-dat]]
34
+
35
+
36
+
37
+
38
+
39
+## inrush protection
40
+
41
+![](2026-02-11-02-12-27.png)
42
+
43
+inrush V2 design
44
+
45
+![](2026-02-12-15-02-06.png)
46
+
47
+
48
+
49
+
50
+## Input protection 2 for +12V
51
+
52
+![](2025-09-04-18-43-10.png)
53
+
54
+Ideal diode to prevent reverse polarity at the input
55
+
56
+
57
+## Input protection
58
+
59
+![](2025-07-10-18-53-28.png)
60
+
61
+- [[SB1045-dat]] - [[sensor-NTC-dat]] == NTC10D-11
62
+
63
+- [[sensor-dat]]
64
+
65
+The input protection circuit uses two main components:
66
+
67
+- **NTC10D-11 (NTC Thermistor):**
68
+ When power is first applied, this thermistor has a high resistance, which limits the inrush current to downstream components (such as large capacitors or sensitive ICs). As it heats up from current flow, its resistance drops, allowing normal operation with minimal voltage drop.
69
+
70
+- **SB1045L (Schottky Diode):**
71
+ This diode is oriented to allow current to flow only in the correct direction. If the power supply is connected in reverse, the diode blocks the current, preventing damage to the rest of the circuit.
72
+
73
+**Summary:**
74
+- The NTC thermistor protects against inrush current at power-on.
75
+- The Schottky diode protects against reverse polarity.
76
+- Together, they ensure only safe, properly oriented power reaches the back end of the circuit.
77
+
78
+
79
+## reverse-votlage-protection
80
+
81
+![](2025-03-24-19-39-56.png)
82
+
83
+
84
+
85
+
86
+### Inrush Protection
87
+
88
+#### 🔧 1. Current Limiting for Transients / Inrush
89
+
90
+- When power is applied from **VMOT**, the capacitors (C1, C3, C4) initially act as short circuits.
91
+- R2 (1 Ω) limits the **inrush current** that charges capacitor **C1 (10 µF)**.
92
+- This protects components and reduces voltage spikes or noise.
93
+
94
+#### 🎛️ 2. Filtering / Decoupling
95
+
96
+- R2 and C1 form a **low-pass RC filter**.
97
+- This filter smooths out high-frequency noise from the supply line.
98
+- It helps ensure a stable voltage at the **VM** output node.
99
+
100
+- [[low-pass-rc-filter-dat]]
101
+
102
+
103
+## reverse connection
104
+
105
+In circuit board design, protecting against reverse polarity (reverse connection) is crucial to prevent damage to components or the entire circuit when the power supply is connected incorrectly. Here are some common methods for reverse polarity protection:
106
+
107
+### Diode-Based Protection:
108
+
109
+Series Diode: Place a diode in series with the power line (Vcc or GND). When the power is connected correctly, the diode conducts, allowing current to flow. If the power is reversed, the diode blocks the current. The downside is a voltage drop across the diode (about 0.7V for a silicon diode or 0.2V for a Schottky diode), which can affect power efficiency.
110
+Parallel Diode with Fuse: A diode is connected in reverse across the power input. If the power is connected incorrectly, the diode conducts and shorts the power supply. A fuse is used in series to blow and cut off the current, protecting the circuit. However, the fuse needs replacement after it blows.
111
+
112
+### P-Channel MOSFET Reverse Protection:
113
+
114
+A P-channel MOSFET is placed between the positive power input and the circuit. When the power is connected correctly, the source of the MOSFET is at a higher potential than the gate, so the MOSFET conducts. If the power is reversed, the MOSFET is turned off, preventing current from flowing. This method is highly efficient with minimal voltage drop.
115
+
116
+- [[mosfet-dat]]
117
+
118
+
119
+### and for N-channel Mosfet: Correct Low-Side N-Channel MOSFET Configuration:
120
+
121
+- Source: Should be connected to ground (or the negative side of the load).
122
+- Drain: Should be connected to the negative side of the load.
123
+- Gate: Needs to be driven by a voltage higher than the source (which is ground in this case) to turn the MOSFET on.
124
+
125
+### Dedicated Reverse Polarity Protection IC:
126
+
127
+There are integrated circuits (ICs) specifically designed for reverse polarity protection, such as Maxim Integrated's MAX1614. These ICs typically include detection and switching functions, automatically disconnecting the power when reverse polarity is detected.
128
+
129
+### Physical Connector Design:
130
+
131
+Using connectors that are physically asymmetric, like USB-C or polarized DC jacks, ensures that the power supply can only be connected in the correct orientation. This is a straightforward method to prevent reverse polarity.
132
+
133
+
134
+## Circuit Protection
135
+
136
+
137
+
138
+To prevent damage to downstream circuits, several design strategies and protective measures can be implemented to guard against overcurrent, overvoltage, and other fault conditions. Here are some common approaches:
139
+
140
+1. Overcurrent Protection: (OC)
141
+
142
+**Fuse**: A traditional protection component that cuts off current when it blows. It’s suitable for one-time protection but requires replacement after activation.
143
+
144
+**Resettable Fuse (PTC)**: A PTC (positive temperature coefficient) fuse increases its resistance when too much current flows. Once the fault clears, it resets itself. This is useful for repeated protection.
145
+
146
+**Current-Limiting Resistor**: A simple resistor can limit the amount of current flowing to downstream circuits. This is a basic solution but may affect performance.
147
+
148
+**Overcurrent Detection and Shutdown (Current-Sensing Circuit)**: Using a current-sensing circuit (e.g., a shunt resistor + op-amp), it detects when the current exceeds a threshold and shuts down the power with a MOSFET or relay.
149
+
150
+2. Overvoltage Protection: (OV)
151
+
152
+**TVS Diode (Transient Voltage Suppression Diode)**: A TVS diode is placed across the power line. When the voltage spikes, it clamps the excess voltage to a safe level, protecting the circuit.
153
+
154
+**Zener Diode**: A Zener diode can regulate voltage. When the input voltage exceeds its breakdown voltage, it conducts and clamps the voltage to protect the circuit.
155
+
156
+**Voltage Detection IC**: These ICs monitor the input voltage, and if it exceeds safe limits, they either shut down the power or trigger a protection mechanism.
157
+
158
+3. Overtemperature Protection: (OT)
159
+
160
+**Thermistors (NTC/PTC)**: Thermistors change resistance with temperature. In case of overheating, their resistance increases, limiting current flow or triggering protective circuits.
161
+
162
+**Temperature-Sensing ICs**: Temperature sensors (e.g., NTC, PTC, or specialized ICs) monitor real-time temperature. If it exceeds a threshold, they shut down the load or power source to protect the circuit.
163
+
164
+4. Inrush Current Protection:
165
+
166
+**Soft-Start Circuit**: Using MOSFETs and capacitors, this circuit gradually ramps up the power, preventing large inrush currents when the circuit first powers on.
167
+
168
+**NTC Inrush Current Limiter:** An NTC thermistor initially limits the inrush current. As the circuit stabilizes, its resistance decreases, allowing normal current flow.
169
+
170
+5. Isolation Protection:
171
+
172
+**Optocouplers**: Optocouplers provide signal isolation between circuits, preventing high voltage or abnormal signals from damaging downstream components.
173
+
174
+**Transformer Isolation**: Transformers can isolate power circuits, protecting the downstream components from high voltage spikes or electrical noise.
175
+
176
+6. Undervoltage Protection:
177
+
178
+**Undervoltage Lockout (UVLO) Circuit**: This circuit disconnects power when the input voltage falls below a safe operating range, preventing malfunctions or damage due to insufficient power.
179
+
180
+7. Reverse Polarity Protection:
181
+
182
+**MOSFET Reverse Polarity Protection**: Using a P-channel or N-channel MOSFET can prevent damage if the power is connected in reverse, as the MOSFET will automatically block current flow in the wrong direction.
183
+
184
+8. Using Protection ICs:
185
+
186
+There are integrated circuits specifically designed for power protection, offering multiple safeguards like overvoltage, overcurrent, overtemperature, and short-circuit protection. An example is the TPS series from Texas Instruments, which simplifies the design with built-in protections.
187
+
188
+
189
+
190
+## 🐢 Slew Rate Controlled
191
+
192
+- **Slew Rate**: How quickly the voltage goes from 0V to full power.
193
+- **Slew Rate Controlled**: The switch turns **on gradually**, not instantly.
194
+
195
+### 🟢 Why is this useful?
196
+
197
+- Prevents **large current spikes**.
198
+- Protects sensitive components.
199
+- Reduces **electrical noise** or interference.
200
+
201
+💡 Think of it like **slowly turning on a water faucet** instead of opening it fully right away — less splashing!
202
+
203
+
204
+
205
+
206
+## solutions
207
+
208
+### AP2280
209
+
210
+Single Channel Slew Rate Controlled Load Switch
211
+
212
+- Wide input voltage range: 1.5V – 6V
213
+- Low RDS(ON): 80mΩ typical @ 5V
214
+- Turn-on slew rate controlled
215
+- AP2280-1: 100us turn-on rise time
216
+- AP2280-2: 1ms turn-on rise time
217
+- Very low turn-on quiescent current: << 1uA
218
+- Fast load discharge pin
219
+- Temperature range -40ºC to 85°C
220
+- SOT25 and DFN2018-6: Available in “Green” Molding Compound (No Br, Sb)
221
+- Lead Free Finish/ RoHS Compliant (Note 1)
222
+
223
+
224
+
225
+
226
+
227
+## ref
228
+
229
+- [[power-dat]]
230
+
Home.md
... ...
@@ -25,7 +25,7 @@
25 25
26 26
- [[battery-dat]] - [[battery-BMS-dat]]
27 27
28
-- [[network-dat]] - [[RC-dat]] - [[MQTT-dat]] - [[bluetooth-dat]] - [[wifi-dat]] - [[RF-dat]] - [[M2M-dat]] - [[lora-dat]] - [[location-dat]]
28
+- [[network-dat]] - [[RC-dat]] - [[MQTT-dat]] - [[bluetooth-dat]] - [[wifi-dat]] - [[RF-dat]] - [[M2M-dat]] - [[lora-dat]] - [[location-dat]] - [[LTE-dat]]
29 29
30 30
- [[app-dat]] - [[RC-apps-dat]] - [[FPV-dat]] - [[rover-dat]]
31 31
... ...
@@ -35,7 +35,7 @@
35 35
36 36
- [[BOM-DAT]] - [[case-dat]] - [[BTB-dat]] - [[transistor-dat]] - [[diode-dat]] - [[resistor-dat]] - [[mosfet-dat]] - [[capacitor-dat]] - [[]]
37 37
38
-- [[CONN-dat]] - [[CONN-cable-terminal-dat]] - [[CONN-power-dat]]
38
+- [[CONN-dat]] - [[CONN-cable-terminal-dat]] - [[CONN-power-dat]] - [[CONN-audio-dat]]
39 39
40 40
- [[cable-dat]]
41 41
Network-dat/LTE-dat/LTE-dat.md
... ...
@@ -13,7 +13,7 @@
13 13
- V2 == [[NGS1141-dat]] - [[NGS1142-dat]]
14 14
- V1 == [[NGS1131-dat]] - [[NGS1132-dat]]
15 15
16
-
16
+- [[EC20-dat]] - [[EC25-dat]]
17 17
18 18
19 19
Network-dat/network-dat.md
... ...
@@ -189,7 +189,7 @@ A microcontroller talking to a cellular modem (SIMCom, Quectel) over UART often
189 189
190 190
- [[APC220-dat]]
191 191
192
-
192
+- [[TI-network-dat]]
193 193
194 194
195 195
SDK-dat/PIC-SDK-dat/pic-sdk-dat.md
... ...
@@ -5,7 +5,8 @@
5 5
- legacy wiki page - https://w.electrodragon.com/w/PIC_SDK
6 6
7 7
8
-- [[pickit-dat]]
8
+- [[PIC-sdk-dat]] - [[pickit-dat]] - [[PIC-dat]]
9
+
9 10
10 11
## Boards
11 12
SDK-dat/STM32-SDK-dat/STM32-SDK-dat.md
... ...
@@ -17,7 +17,7 @@
17 17
18 18
## programmer
19 19
20
-- [[STM32-Cube-programmer-dat]]
20
+- [[STM32-Cube-programmer-dat]] - [[ST-link-dat]]
21 21
22 22
23 23
STM32 ST-LINK Utility的功能比STM32CubeProg要稍微简单一些，其主要功能也是编程（下载）。
... ...
@@ -33,4 +33,4 @@ STM32 ST-LINK Utility的功能比STM32CubeProg要稍微简单一些，其主要
33 33
34 34
## ref
35 35
36
-- [[STM32-dat]] - [[Info/info]]
... ...
\ No newline at end of file
0
+- [[STM32-dat]] - [[info]]
... ...
\ No newline at end of file
SDK-dat/WCH-SDK-dat/2026-02-12-14-47-58.png
... ...
Binary files /dev/null and b/SDK-dat/WCH-SDK-dat/2026-02-12-14-47-58.png differ
SDK-dat/WCH-SDK-dat/2026-02-12-14-48-27.png
... ...
Binary files /dev/null and b/SDK-dat/WCH-SDK-dat/2026-02-12-14-48-27.png differ
SDK-dat/WCH-SDK-dat/WCH-SDK-dat.md
... ...
@@ -17,6 +17,26 @@
17 17
- [[WCH-MCU-dat]]
18 18
19 19
20
+
21
+
22
+
23
+## CH582
24
+
25
+调试和下载建议：
26
+
27
+调试时建议使用WCH-LINK进行程序调试（例如进行单步调试，断点调试），使用调试功能前需要使用ISP软件解除调试禁止。批量下载加密时建议使用USB线配合官方软件进行下载。
28
+当使用USB线下载时需要进行如下步骤：核心板不上电，按住BOOT按键不放；重新给核心板上电，RST按键不起作用；上电后再松开BOOT按键;
29
+ISP软件便识别到MCU，进行相应的操作；重新上电执行新下载程序。
30
+
31
+![](2026-02-12-14-47-58.png)
32
+
33
+
34
+调试器：
35
+
36
+同样是由于MCU内核为RISC-V，就不能再使用ARM单片机的调试器了，好在有更加廉价和便捷的专用调试器WCH-LINK，该调试器可以切换模式既可以给ARM单片机作为DAP-CMSIS调试器进行调试，又可以切换另一种模式到给CH32V系列单片机调试。该调试器可以在MOUNRIVER中进行单步、断点调试。
37
+
38
+![](2026-02-12-14-48-27.png)
39
+
20 40
## ref
21 41
22 42
- [[WCH-dat]]
... ...
\ No newline at end of file
Shipment-dat/weight-dat.md
... ...
@@ -1,7 +0,0 @@
1
-
2
-# weight-dat
3
-
4
-- 1KG = 20 usd
5
-- 100g = 2 usd
6
-
7
-
Tech-dat/Interface-dat/Serial-dat/serial-circuits-dat/serial-circuits-dat.md
... ...
@@ -14,6 +14,17 @@ common PCB setup
14 14
- two row -1: GND / VCC
15 15
- two row -2: RXD / TXD
16 16
17
+
18
+
19
+
20
+## MCU design
21
+
22
+
23
+- [[serial-dat]] - [[STC-dat]] - [[logic-level-shifter-dat]]
24
+
25
+
26
+
27
+
17 28
## ref
18 29
19 30
- [[serial-dat]]
... ...
\ No newline at end of file
Tech-dat/Interface-dat/USB-SDK-dat/USB-SDK-dat.md
... ...
@@ -22,7 +22,6 @@
22 22
23 23
- [[keyboard-dat]] - [[mouse-dat]]
24 24
25
-- [[USB-sniffer-dat]] - [[USB-Hub-dat]] - [[USB-Switch-dat]] - [[USB-APP-dat]]
26 25
27 26
- [[USB-FC-dat]]
28 27
... ...
@@ -31,8 +30,11 @@
31 30
- [[IP5306-dat]]
32 31
33 32
33
+## USB functions and enhance
34 34
35
+- [[USB-sniffer-dat]] - [[USB-Hub-dat]] - [[USB-Switch-dat]] - [[USB-APP-dat]]
35 36
37
+- [[USB-extension-dat]] - [[USB-hid-dat]]
36 38
37 39
38 40
## USB variations
... ...
@@ -49,6 +51,8 @@
49 51
50 52
- [[USB-SPI-dat]]
51 53
54
+
55
+
52 56
## Devices
53 57
54 58
- [[ARM1003-dat]] - [[MOT1022-dat]]
Tech-dat/Interface-dat/USB-SDK-dat/USB-extension-dat/USB-extension-dat.md
... ...
@@ -0,0 +1,14 @@
1
+
2
+# USB-extension-dat
3
+
4
+- [[USB-SDK-dat]] - [[USB-extension-dat]]
5
+
6
+
7
+## board
8
+
9
+- [[USB1003-dat]]
10
+
11
+
12
+
13
+## ref
14
+
Tech-dat/Interface-dat/can-dat/can-dat.md
... ...
@@ -15,11 +15,23 @@ CAN Transceiver - [[NXP-CAN-dat]]
15 15
16 16
SPI to CAN - [[MCP2551-dat]]
17 17
18
+[[TJA1021-dat]]
19
+
20
+[[TJA1050-dat]]
21
+
22
+
18 23
19 24
## board
20 25
21 26
- [[ITF1000-dat]]
22 27
28
+- [[STC-dat]]
29
+
30
+
31
+
32
+
33
+
34
+
23 35
## common software
24 36
25 37
Tech-dat/Interface-dat/interface-dat.md
... ...
@@ -48,7 +48,9 @@ long range secure by cable - [[RS485-dat]] - [[fiber-optic-dat]] - [[POF-dat]] -
48 48
49 49
- [[ADC-dat]] - [[DAC-dat]]
50 50
51
+## special interface
51 52
53
+- [[powerbus-dat]]
52 54
53 55
54 56
## Breakout boards
Tech-dat/Interface-dat/powerbus-dat/powerbus-dat.md
... ...
@@ -2,6 +2,10 @@
2 2
# powerbus-dat
3 3
4 4
5
+- [[interface-dat]] + [[power-dat]]
6
+
7
+
8
+
5 9
## about powerbus
6 10
7 11
![](2024-08-28-13-21-38.png)
Tech-dat/MCU-dat/mcu-dat.md
... ...
@@ -2,7 +2,7 @@
2 2
# MCU-dat
3 3
4 4
5
-- [[peripherals-dat]] - [[serial-dat]]
5
+- [[peripherals-dat]] - [[serial-dat]] - [[dev-board-dat]]
6 6
7 7
8 8
- [[STM32-dat]] - [[STM32-clone-dat]]
... ...
@@ -22,7 +22,7 @@
22 22
23 23
- [[allwinner-dat]]
24 24
25
-- [[STC-dat]]
25
+- [[STC-dat]] - [[STC8H-dat]] - [[STC32-dat]]
26 26
27 27
- [[nuvoton-dat]] - [[N76E003-dat]] - [[MCU-dat]]
28 28
... ...
@@ -30,7 +30,7 @@
30 30
31 31
- [[HDSC-dat]]
32 32
33
-
33
+- [[TI-dat]] - [[MSP430-dat]] - [[TMS320-dat]]
34 34
35 35
36 36
## other types
... ...
@@ -53,7 +53,7 @@ s
53 53
54 54
- [[ASR6500-dat]]
55 55
56
-- [[WCH-dat]] - [[CH579-dat]]
56
+- [[WCH-dat]] - [[CH579-dat]] - [[CH582-dat]]
57 57
58 58
- [[silicon-labs-dat]]
59 59
... ...
@@ -156,6 +156,14 @@ Some versions (like ESP32-S3-WROOM-1U-N8R2) come with a built-in DC-DC converter
156 156
157 157
- AT89S52-24PC
158 158
159
+
160
+
161
+
162
+
163
+
164
+
165
+
166
+
159 167
## ref
160 168
161 169
- [[MCU]]
... ...
\ No newline at end of file
Tech-dat/Optical-Coupler-DAT/2026-02-12-15-25-21.png
... ...
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Tech-dat/Optical-Coupler-DAT/2026-02-12-15-25-33.png
... ...
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Tech-dat/Optical-Coupler-DAT/2026-02-12-15-25-42.png
... ...
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Tech-dat/Optical-Coupler-DAT/Optical-Coupler-DAT.md
... ...
@@ -6,6 +6,15 @@
6 6
- [[AC-isolation-dat]] - [[everlight-dat]] - [[EL357-dat]]
7 7
8 8
9
+
10
+## wiring
11
+
12
+![](2026-02-12-15-25-21.png)
13
+
14
+![](2026-02-12-15-25-33.png)
15
+
16
+![](2026-02-12-15-25-42.png)
17
+
9 18
## brands
10 19
11 20
- [[broadcom-dat]] - [[sharp-dat]] - [[liteon-dat]] - [[renesas-dat]] - [[Toshiba-dat]] - [[vishay-dat]]
Tech-dat/RTC-dat/rtc-dat.md
... ...
@@ -13,7 +13,7 @@ Boards
13 13
14 14
## chip
15 15
16
-[[Dallas-dat]]
16
+[[Dallas-dat]] - [[DS1307-dat]] - [[DS3231-dat]] - [[DS1302-dat]]
17 17
18 18
[[NXP-dat]]
19 19
Tech-dat/Sensor-dat/sensor-color-dat/sensor-color-dat.md
... ...
@@ -1,14 +0,0 @@
1
-
2
-# color-sensor-dat
3
-
4
-https://w.electrodragon.com/w/Category:Color_sensor
5
-
6
-
7
-
8
-
9
-
10
-## ref
11
-
12
-- [[SSL1037-dat]] - [[SSL1042-dat]] - [[SSL1045-dat]]
13
-
14
-- [[TCS230-dat]]
... ...
\ No newline at end of file
Tech-dat/Sensor-dat/sensor-dat.md
... ...
@@ -15,6 +15,7 @@
15 15
16 16
- [[infrared-dat]] - [[led-infrared-dat]] - [[infrared-reflective-dat]]
17 17
18
+- [[sensor-object-dat]] - [[sensor-dat]] - [[SMO1095-dat]] - [[sensor-color-dat]]
18 19
19 20
20 21
- [[sensor-power-dat]] - [[sensor-dc-current-dat]] - [[AC-voltage-monitor-dat]] - [[voltage-supervisor-dat]]
Tech-dat/Sensor-dat/sensor-object-dat/sensor-color-dat/sensor-color-dat.md
... ...
@@ -0,0 +1,18 @@
1
+
2
+# sensor-color-dat
3
+
4
+https://w.electrodragon.com/w/Category:Color_sensor
5
+
6
+
7
+
8
+
9
+
10
+## boards
11
+
12
+- [[SSL1037-dat]] - [[SSL1042-dat]] - [[SSL1045-dat]] - [[TCS230-dat]] - [[sensor-color-dat]] - [[sensor-object-dat]]
13
+
14
+
15
+
16
+
17
+## ref
18
+
Tech-dat/Sensor-dat/sensor-object-dat/sensor-object-dat.md
... ...
@@ -0,0 +1,21 @@
1
+
2
+# sensor-object-dat
3
+
4
+
5
+## metal objects
6
+
7
+## water
8
+
9
+- [[sensor-object-dat]] - [[sensor-dat]] - [[SMO1095-dat]]
10
+
11
+## color
12
+
13
+- [[SSL1037-dat]] - [[SSL1042-dat]] - [[SSL1045-dat]] - [[TCS230-dat]] - [[sensor-color-dat]] - [[sensor-object-dat]]
14
+
15
+
16
+
17
+
18
+
19
+## ref
20
+
21
+- [[sensor-object-dat]] - [[sensor-dat]] - [[SMO1095-dat]] - [[sensor-color-dat]]
Tech-dat/Sensor-dat/sensor-power-dat/sensor-current-dat/sensor-current-dat.md
... ...
@@ -2,6 +2,9 @@
2 2
# current-sensor-dat.md
3 3
4 4
- [[current-transformer-dat]]
5
+
6
+
7
+
5 8
- [[dc-current-sensor-dat]]
6 9
7 10
- [[ACS712-dat]] - [[SVC1000-dat]]
Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/motor-brushed-dat.md
... ...
@@ -157,7 +157,7 @@ So, a **230 motor** typically has:
157 157
158 158
- [[VNH2SP30-dat]] - [[BTS7960-dat]]
159 159
160
-
160
+- [[ST-dat]]
161 161
162 162
163 163
## 🔄 3. 1000W+ Brushed DC Motors – ✅ *Direct power jump*
Tech-dat/audio-dat/wave-dat/wave-dat.md
... ...
@@ -1,11 +0,0 @@
1
-
2
-# wave-dat
3
-
4
-
5
-
6
-common hearing == 2.7k square wave
7
-
8
-
9
-## ref
10
-
11
-- [[buzzer-dat]]
... ...
\ No newline at end of file
Tech-dat/dev-board-dat/2026-02-12-14-53-04.png
... ...
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Tech-dat/dev-board-dat/dev-board-dat.md
... ...
@@ -15,5 +15,15 @@
15 15
16 16
V1
17 17
18
+
19
+
20
+## design gallery
21
+
22
+![](2026-02-12-14-53-04.png)
23
+
24
+
25
+
26
+
18 27
## ref
19 28
29
+- [[MCU-dat]]
... ...
\ No newline at end of file
Tech-dat/peripherals-dat/peripherals-dat.md
... ...
@@ -2,6 +2,10 @@
2 2
# peripherals-dat
3 3
4 4
5
+- [[protection-dat]] - [[protection-power-dat]]
6
+
7
+
8
+
5 9
- [[PCB-design-basic-dat]] - [[PCB-design-stack-dat]] - [[peripherals-dat]] - [[dev-board-dat]]
6 10
7 11
Tech-dat/signal-dat/pulse-generator-dat/2026-02-12-15-20-21.png
... ...
Binary files /dev/null and b/Tech-dat/signal-dat/pulse-generator-dat/2026-02-12-15-20-21.png differ
Tech-dat/signal-dat/pulse-generator-dat/pulse-generator-dat.md
... ...
@@ -25,11 +25,21 @@ and analogWrite(127) is a 50% duty cycle (on half the time) for example.
25 25
26 26
- [[SCU1063-dat]]
27 27
28
+
29
+
30
+
31
+
28 32
## other possible boards
29 33
30 34
- [[OPMS080-dat]]
31 35
32 36
37
+
38
+## wave generator
39
+
40
+![](2026-02-12-15-20-21.png)
41
+
42
+
33 43
## ref
34 44
35 45
- [[PWM-dat]]
Tech-dat/signal-dat/signal-dat.md
... ...
@@ -19,7 +19,11 @@
19 19
20 20
- [[comparator-dat]] - [[circuits-dat]]
21 21
22
-- [[signal-dat]] - [[DDS-dat]]
22
+- [[signal-dat]] - [[DDS-dat]] - [[wave-dat]]
23
+
24
+- [[audio-dat]]
25
+
26
+- [[pulse-generator-dat]]
23 27
24 28
25 29
## unsort
Tech-dat/signal-dat/wave-dat/wave-dat.md
... ...
@@ -0,0 +1,11 @@
1
+
2
+# wave-dat
3
+
4
+
5
+
6
+common hearing == 2.7k square wave
7
+
8
+
9
+## ref
10
+
11
+- [[buzzer-dat]]
... ...
\ No newline at end of file
Tech-dat/voltage-reference-dat/2025-10-08-14-52-29.png
... ...
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Tech-dat/voltage-reference-dat/2025-10-08-15-54-45.png
... ...
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Tech-dat/voltage-reference-dat/voltage-reference-dat.md
... ...
@@ -1,80 +0,0 @@
1
-
2
-# voltage-reference-dat
3
-
4
-
5
-- [[supervisory-dat]] - [[power-switch-dat]] - [[voltage-reference-dat]] - [[voltage-interverter-dat]] - [[power-detector-dat]] - [[power-amplifier-dat]]
6
-
7
-
8
-
9
-== V_ref
10
-
11
-
12
-- [[TI-dat]]
13
-
14
-## REF30
15
-
16
-REF30E and REF30, Low Current Voltage Reference in SOT-23-3
17
-
18
-Output voltage options
19
-- REF30E: 1.25V to 5V
20
-- REF30: 1.25V to 4.096V
21
-
22
-
23
-![](2025-10-08-14-52-29.png)
24
-
25
-- [[ADC-dat]]
26
-
27
-for ADC-AVDD
28
-
29
-![](2025-10-08-15-54-45.png)
30
-
31
-
32
-- [[peripherals-dat]]
33
-
34
-
35
-
36
-
37
-
38
-## TL431
39
-
40
-
41
-
42
-
43
-## voltage reference
44
-
45
-- ADR435BRZ - Ultralow Noise XFET Voltage References with Current Sink and Source Capability
46
-
47
-- [[TL431-dat]] - [[voltage-reference-dat]]
48
-
49
-- [[supervisory-dat]]
50
-
51
-| Feature | Voltage Reference | Supervisory IC |
52
-| ------------------------ | ------------------------- | ---------------------------------- |
53
-| Purpose | Provide precise voltage | Monitor power & generate reset |
54
-| Output type | Analog voltage | Digital reset |
55
-| Accuracy | Very high (ppm/°C) | Moderate (1–3%) |
56
-| Noise | Very low | Not relevant |
57
-| Used in | Analog precision circuits | MCU, CPU, digital systems |
58
-| Extra functions | None | Watchdog, manual reset, sequencing |
59
-| Affects system start-up? | No | Yes |
60
-
61
-
62
-
63
-## more
64
-
65
-- Voltage References | LM336Z25 - 2.49 V, 2% Programmable Shunt Regulator
66
-
67
-ADM708SARZ
68
-
69
-ADR01/ADR02/ADR03/ADR06 - Ultracompact, Precision 10.0 V/5.0 V/2.5 V/3.0 V Voltage References
70
-
71
-## ref
72
-
73
-- [[tech-dat]]
74
-
75
-- [[voltage-reference]]
76
-
77
-- [[power-dat]]
78
-
79
-
80
-
app-dat/Oscilloscope-dat/2026-02-12-15-13-29.png
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app-dat/Oscilloscope-dat/Oscilloscope-dat.md
... ...
@@ -0,0 +1,22 @@
1
+
2
+
3
+# Oscilloscope-dat
4
+
5
+
6
+- [[voltage-dat]] - [[voltage-reference-dat]]
7
+
8
+- [[signal-dat]] - [[wave-dat]]
9
+
10
+
11
+
12
+
13
+## SCH
14
+
15
+![](2026-02-12-15-13-29.png)
16
+
17
+- [[STC-dat]]
18
+
19
+## ref
20
+
21
+
22
+- [[instrument-dat]] - [[oscilloscope-dat]] - [[multimeter-dat]] - [[tools-dat]] - [[fab-workspace-dat]]
... ...
\ No newline at end of file
app-dat/power-usb-charger-dat/power-usb-charger-dat.md
... ...
@@ -0,0 +1,4 @@
1
+
2
+# power-usb-charger-dat
3
+
4
+- [[OPM1160-dat]]
... ...
\ No newline at end of file
app-dat/weight-dat/2026-02-12-15-55-57.png
... ...
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app-dat/weight-dat/weight-dat.md
... ...
@@ -0,0 +1,20 @@
1
+
2
+# weight-dat
3
+
4
+- [[ADC-dat]] - [[hx711-dat]]
5
+
6
+
7
+
8
+![](2026-02-12-15-55-57.png)
9
+
10
+
11
+## shipment weight
12
+
13
+
14
+- 1KG = 20 usd
15
+- 100g = 2 usd
16
+
17
+
18
+## ref
19
+
20
+
power-dat/AC-Mains-dat/ACDC-dat/ACDC-dat.md
... ...
@@ -28,6 +28,12 @@
28 28
29 29
30 30
31
+## output
32
+
33
+- 12V/2A
34
+- 5V/2A
35
+-
36
+
31 37
32 38
## Board Function diagram
33 39
power-dat/DC-dat/DCDC-dat/dcdc-down-dat/2026-02-12-15-27-45.png
... ...
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power-dat/DC-dat/DCDC-dat/dcdc-down-dat/2026-02-12-15-28-02.png
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power-dat/DC-dat/DCDC-dat/dcdc-down-dat/2026-02-12-15-28-16.png
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power-dat/DC-dat/DCDC-dat/dcdc-down-dat/dcdc-down-dat.md
... ...
@@ -30,6 +30,28 @@
30 30
- [[MPS-dat]] - [[intel-dat]]
31 31
32 32
33
+### CHIP SIL
34
+
35
+TPS82084(2-A)/TPS82085(3-A) 高效降压转换器MicroSiPTM模块
36
+
37
+TPS82084/5是经优化的2A/3A降压转换器MicroSiP模块，兼具小型解决方案尺寸和高效率优势。该电源模块集成有同步降压转换器和电感，可简化设计、减少外部元件并节省印刷电路板（PCB）面积。该器件采用紧凑的薄型封装，适合通过标准表面贴装设备进行自动组装。
38
+
39
+![](2026-02-12-15-27-45.png)
40
+
41
+![](2026-02-12-15-28-02.png)
42
+
43
+![](2026-02-12-15-28-16.png)
44
+
45
+
46
+
47
+
48
+
49
+
50
+
51
+
52
+
53
+
54
+
33 55
## DCDC down module boards
34 56
35 57
- [[OPM1153-dat]] - [[OPM1104-dat]]
power-dat/voltage-dat/2026-02-12-15-17-57.png
... ...
Binary files /dev/null and b/power-dat/voltage-dat/2026-02-12-15-17-57.png differ
power-dat/voltage-dat/voltage-dat.md
... ...
@@ -0,0 +1,18 @@
1
+
2
+# voltage-dat
3
+
4
+- [[voltage-dat]] - [[voltage-interverter-dat]] - [[voltage-divider-dat]] - [[voltage-reference-dat]]
5
+
6
+
7
+
8
+## voltage negative
9
+
10
+- [[Oscilloscope-dat]]
11
+
12
+![](2026-02-12-15-17-57.png)
13
+
14
+
15
+
16
+
17
+## ref
18
+
power-dat/voltage-dat/voltage-divider-dat/2024-02-01-18-36-27.png
... ...
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power-dat/voltage-dat/voltage-divider-dat/2025-04-24-13-05-56.png
... ...
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power-dat/voltage-dat/voltage-divider-dat/2025-05-14-18-12-31.png
... ...
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power-dat/voltage-dat/voltage-divider-dat/voltage-divider-dat.md
... ...
@@ -0,0 +1,64 @@
1
+
2
+# voltage-divider-dat
3
+
4
+
5
+## applications
6
+
7
+- [[button-dat]] - [[ADC-bat-monitor-dat]]
8
+
9
+
10
+## how works
11
+
12
+== voltage ladder
13
+
14
+![](2024-02-01-18-36-27.png)
15
+
16
+Vout = Vin * (R2 / (R1 + R2))
17
+
18
+ 4.77V = 18V * (13K / (13K + 36K) )
19
+ 3.65V = 18V * (13K / (13K + 51K) )
20
+
21
+ 0.877V = 5V * (47K / (47K + 10K) )
22
+ 0.526V = 3V * (47K / (47K + 10K) )
23
+
24
+ 0.952V = 5V * (51K / (51K + 12K) )
25
+ 0.571V = 3V * (51K / (51K + 12K) )
26
+
27
+Vin == Vout * (R1 + R2) / R2
28
+
29
+ == 1V * (220K + 100K) / 100K
30
+ == 3.2V
31
+
32
+A voltage divider circuit is a very common circuit that takes a higher voltage and converts it to a lower one by using a pair of resistors. The formula for calculating the output voltage is based on Ohms Law and is shown below.
33
+
34
+![](2025-04-24-13-05-56.png)
35
+
36
+where:
37
+
38
+- VS is the source voltage, measured in volts (V),
39
+- R1 is the resistance of the 1st resistor, measured in Ohms (Ω).
40
+- R2 is the resistance of the 2nd resistor, measured in Ohms (Ω).
41
+- Vout is the output voltage, measured in volts (V),
42
+
43
+## [[NWI1118-dat]] on board ADC voltage ladder
44
+
45
+cut off SJ3 first to use the ADC ladder.
46
+
47
+![](2025-05-14-18-12-31.png)
48
+
49
+- [[ESP8266-dat]]
50
+
51
+
52
+## common use
53
+
54
+VIN = 12V, R_up == 390K, R_down == 120K, Vout_mid == 2.8235V
55
+VIN = 11V, R_up == 390K, R_down == 120K, Vout_mid == 2.5882V
56
+
57
+## ref
58
+
59
+- https://learn.sparkfun.com/tutorials/voltage-dividers/all#:~:text=A%20voltage%20divider%20is%20a,most%20fundamental%20circuits%20in%20electronics.
60
+
61
+
62
+https://ohmslawcalculator.com/voltage-divider-calculator
63
+
64
+- [[ESP32-ADC-dat]]
power-dat/voltage-dat/voltage-interverter-dat/voltage-interverter-dat.md
... ...
@@ -0,0 +1,8 @@
1
+
2
+# voltage-interverter-dat
3
+
4
+1.8-V to 5.5-VIN switched capacitor voltage inverter
5
+
6
+## ref
7
+
8
+- [[power-dat]]
... ...
\ No newline at end of file
power-dat/voltage-dat/voltage-reference-dat/2025-10-08-14-52-29.png
... ...
Binary files /dev/null and b/power-dat/voltage-dat/voltage-reference-dat/2025-10-08-14-52-29.png differ
power-dat/voltage-dat/voltage-reference-dat/2025-10-08-15-54-45.png
... ...
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power-dat/voltage-dat/voltage-reference-dat/voltage-reference-dat.md
... ...
@@ -0,0 +1,80 @@
1
+
2
+# voltage-reference-dat
3
+
4
+
5
+- [[supervisory-dat]] - [[power-switch-dat]] - [[voltage-reference-dat]] - [[voltage-interverter-dat]] - [[power-detector-dat]] - [[power-amplifier-dat]]
6
+
7
+
8
+
9
+== V_ref
10
+
11
+
12
+- [[TI-dat]]
13
+
14
+## REF30
15
+
16
+REF30E and REF30, Low Current Voltage Reference in SOT-23-3
17
+
18
+Output voltage options
19
+- REF30E: 1.25V to 5V
20
+- REF30: 1.25V to 4.096V
21
+
22
+
23
+![](2025-10-08-14-52-29.png)
24
+
25
+- [[ADC-dat]]
26
+
27
+for ADC-AVDD
28
+
29
+![](2025-10-08-15-54-45.png)
30
+
31
+
32
+- [[peripherals-dat]]
33
+
34
+
35
+
36
+
37
+
38
+## TL431
39
+
40
+
41
+
42
+
43
+## voltage reference
44
+
45
+- ADR435BRZ - Ultralow Noise XFET Voltage References with Current Sink and Source Capability
46
+
47
+- [[TL431-dat]] - [[voltage-reference-dat]]
48
+
49
+- [[supervisory-dat]]
50
+
51
+| Feature | Voltage Reference | Supervisory IC |
52
+| ------------------------ | ------------------------- | ---------------------------------- |
53
+| Purpose | Provide precise voltage | Monitor power & generate reset |
54
+| Output type | Analog voltage | Digital reset |
55
+| Accuracy | Very high (ppm/°C) | Moderate (1–3%) |
56
+| Noise | Very low | Not relevant |
57
+| Used in | Analog precision circuits | MCU, CPU, digital systems |
58
+| Extra functions | None | Watchdog, manual reset, sequencing |
59
+| Affects system start-up? | No | Yes |
60
+
61
+
62
+
63
+## more
64
+
65
+- Voltage References | LM336Z25 - 2.49 V, 2% Programmable Shunt Regulator
66
+
67
+ADM708SARZ
68
+
69
+ADR01/ADR02/ADR03/ADR06 - Ultracompact, Precision 10.0 V/5.0 V/2.5 V/3.0 V Voltage References
70
+
71
+## ref
72
+
73
+- [[tech-dat]]
74
+
75
+- [[voltage-reference]]
76
+
77
+- [[power-dat]]
78
+
79
+
80
+
power-dat/voltage-divider-dat/2024-02-01-18-36-27.png
... ...
Binary files a/power-dat/voltage-divider-dat/2024-02-01-18-36-27.png and /dev/null differ
power-dat/voltage-divider-dat/2025-04-24-13-05-56.png
... ...
Binary files a/power-dat/voltage-divider-dat/2025-04-24-13-05-56.png and /dev/null differ
power-dat/voltage-divider-dat/2025-05-14-18-12-31.png
... ...
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power-dat/voltage-divider-dat/voltage-divider-dat.md
... ...
@@ -1,64 +0,0 @@
1
-
2
-# voltage-divider-dat
3
-
4
-
5
-## applications
6
-
7
-- [[button-dat]] - [[ADC-bat-monitor-dat]]
8
-
9
-
10
-## how works
11
-
12
-== voltage ladder
13
-
14
-![](2024-02-01-18-36-27.png)
15
-
16
-Vout = Vin * (R2 / (R1 + R2))
17
-
18
- 4.77V = 18V * (13K / (13K + 36K) )
19
- 3.65V = 18V * (13K / (13K + 51K) )
20
-
21
- 0.877V = 5V * (47K / (47K + 10K) )
22
- 0.526V = 3V * (47K / (47K + 10K) )
23
-
24
- 0.952V = 5V * (51K / (51K + 12K) )
25
- 0.571V = 3V * (51K / (51K + 12K) )
26
-
27
-Vin == Vout * (R1 + R2) / R2
28
-
29
- == 1V * (220K + 100K) / 100K
30
- == 3.2V
31
-
32
-A voltage divider circuit is a very common circuit that takes a higher voltage and converts it to a lower one by using a pair of resistors. The formula for calculating the output voltage is based on Ohms Law and is shown below.
33
-
34
-![](2025-04-24-13-05-56.png)
35
-
36
-where:
37
-
38
-- VS is the source voltage, measured in volts (V),
39
-- R1 is the resistance of the 1st resistor, measured in Ohms (Ω).
40
-- R2 is the resistance of the 2nd resistor, measured in Ohms (Ω).
41
-- Vout is the output voltage, measured in volts (V),
42
-
43
-## [[NWI1118-dat]] on board ADC voltage ladder
44
-
45
-cut off SJ3 first to use the ADC ladder.
46
-
47
-![](2025-05-14-18-12-31.png)
48
-
49
-- [[ESP8266-dat]]
50
-
51
-
52
-## common use
53
-
54
-VIN = 12V, R_up == 390K, R_down == 120K, Vout_mid == 2.8235V
55
-VIN = 11V, R_up == 390K, R_down == 120K, Vout_mid == 2.5882V
56
-
57
-## ref
58
-
59
-- https://learn.sparkfun.com/tutorials/voltage-dividers/all#:~:text=A%20voltage%20divider%20is%20a,most%20fundamental%20circuits%20in%20electronics.
60
-
61
-
62
-https://ohmslawcalculator.com/voltage-divider-calculator
63
-
64
-- [[ESP32-ADC-dat]]
power-dat/voltage-interverter-dat/voltage-interverter-dat.md
... ...
@@ -1,8 +0,0 @@
1
-
2
-# voltage-interverter-dat
3
-
4
-1.8-V to 5.5-VIN switched capacitor voltage inverter
5
-
6
-## ref
7
-
8
-- [[power-dat]]
... ...
\ No newline at end of file
tools-dat/tools-dat.md
... ...
@@ -3,6 +3,8 @@
3 3
4 4
- [[fab-workspace-dat]] - [[multimeter-dat]] - [[SMD-tester-dat]]
5 5
6
+- [[instrument-dat]] - [[oscilloscope-dat]] - [[multimeter-dat]] - [[tools-dat]] - [[fab-workspace-dat]]
7
+
6 8
7 9
8 10
- [[PCB-tools-dat]]