Board-dat/OPM/OPM1140-dat/OPM1140-dat.md
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@@ -11,6 +11,6 @@
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![](2024-01-22-17-12-38.png)
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-
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+## ref
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- [[OPM1140]]
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Board-dat/OPM/OPM1156-dat/OPM1156-dat.md
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@@ -18,9 +18,12 @@
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- default charging current 360mA by 3k3 R8 resistor
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+on board power jack connector == 2P1.25 (2P), note not soldered
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+
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+
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## ref
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- [[TP4056-dat]]
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-- [[battery-charger-dat]]
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+- [[battery-charger-dat]] - [[battery-protection-dat]] - [[power-protection-dat]]
Chip-cn-dat/UNI-Trend-dat/2025-08-13-14-33-12.png
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Binary files /dev/null and b/Chip-cn-dat/UNI-Trend-dat/2025-08-13-14-33-12.png differ
Chip-cn-dat/UNI-Trend-dat/UNI-Trend-dat.md
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@@ -0,0 +1,31 @@
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+
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+# UNI-Trend-dat
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+
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+Uni-Trend Technology (China) Co., Ltd. is one of the well-known test and measurement solutions provider in Asia. Uni-Trend is an ISO9001 and ISO14001 certified company, with T&M products meeting certifications including CE, ETL, UL, GS, etc.
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+
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+## UT118B Pen Type Digital Multimeter
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+
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+![](2025-08-13-14-33-12.png)
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+
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+
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+Company profile
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+Year:
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+
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+1988
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+
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+SSE Code:
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+
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+688628
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+
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+Uni-Trend:
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+
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+“Test & Measurement
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+Products and Solutions Provider”
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+
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+优利德科技（中国）股份有限公司
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+
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+
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+
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+## ref
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+
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+- [[NI-Trend]] - [[multimeter]]
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Circuits-dat/protection-dat/battery-protection-dat/battery-protection-dat.md
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@@ -5,6 +5,10 @@
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## DW01 + FS8205
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+OC OD mosfet control - to cut of BAT- to GND
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+
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+
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+
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![](2024-09-13-16-56-57.png)
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@@ -13,6 +17,11 @@
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![](2025-07-13-01-15-32.png)
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+
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+
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+
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+
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+
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## ref
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- [[protection-dat]]
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tools-dat/multimeter-dat/multimeter-dat.md
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@@ -1,12 +1,20 @@
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# multimeter-dat
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+
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+- [[UNI-Trend-dat]]
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+
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+
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## DM3058/E Series
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DM3058 / DM3058E is an economical 5.5-digit digital multimeter. It is designed for the test requirements of high accuracy, multi-function and automatic measurement. It integrates the functions of automatic measurement, multiple mathematical transformations and any sensor measurement. It provides USB, GPIB (DM3058 only), LAN (DM3058 only) and RS232 interfaces.
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https://eu.rigol.com/eu/products/DM_Detail/DM3058
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+
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+
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+
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+
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## ref
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- [[instrument-dat]]
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