BOM-DAT/transformer-dat/2026-05-15-15-02-00.png
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BOM-DAT/transformer-dat/2026-05-15-15-02-34.png
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BOM-DAT/transformer-dat/transformer-dat.md
... ...
@@ -1,8 +1,33 @@
1 1
2 2
# transformer-dat
3 3
4
+- [[ACDC-dat]] - [[VIPER22-dat]]
4 5
6
+## transformer specs
5 7
8
+for - [[VIPER22-dat]]
6 9
10
+![](2026-05-15-15-02-00.png)
11
+
12
+- Primary Winding
13
+- Auxiliary Winding
14
+- Secondary Winding
15
+
16
+![](2026-05-15-15-02-34.png)
17
+
18
+
19
+
20
+## wiring
21
+
22
+The transformer winding is actually quite straightforward, and may be done in the following manner.
23
+
24
+Keep in mind that the `black dots` indicate the start points of the winding which is very important, and must be strictly followed while winding the transformer.
25
+
26
+- The primary wound using 36 SWG super enameled copper wire upto `150 turns`,
27
+- while the secondary is wound using 26 SWG wire upto around `12 to 15 turns`.
28
+
29
+The core can be a standard `E19` type ferrite core having a bobbin with central core cross section area of approximately 4.5mm by 4.5mm.
30
+
31
+- [[E19-dat]]
7 32
8 33
## ref
... ...
\ No newline at end of file
Board-dat/SDR/SDR1120-dat/SDR1120-dat.md
... ...
@@ -10,7 +10,9 @@ product url -
10 10
11 11
wireless motor drive board
12 12
13
-- [[L9110-dat]] - [[attiny13-dat]]
13
+- [[L9110-dat]]
14
+
15
+- [[attiny13-dat]] - [[MCU-dat]]
14 16
15 17
- [[EDRF1-dat]] == [[NWL1089-dat]] - [[RF-LINK-dat]]
16 18
Chip-dat/ST-dat/ST-ACDC-dat/ST-ACDC-dat.md
... ...
@@ -0,0 +1,9 @@
1
+
2
+
3
+# ST-ACDC-dat
4
+
5
+- [[ST-ACDC-dat]] - [[ACDC-dat]] - [[VIPER22-dat]] - [[VIPER12-dat]]
6
+
7
+
8
+
9
+## ref
... ...
\ No newline at end of file
Chip-dat/ST-dat/ST-ACDC-dat/VIPER22-dat/2026-05-15-14-50-59.png
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Chip-dat/ST-dat/ST-ACDC-dat/VIPER22-dat/2026-05-15-14-51-55.png
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Chip-dat/ST-dat/ST-ACDC-dat/VIPER22-dat/2026-05-15-15-01-33.png
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Chip-dat/ST-dat/ST-ACDC-dat/VIPER22-dat/VIPER22-dat.md
... ...
@@ -0,0 +1,29 @@
1
+
2
+
3
+# VIPER22-dat
4
+
5
+- [[ST-ACDC-dat]] - [[ACDC-dat]] - [[VIPER22-dat]] - [[VIPER12-dat]]
6
+
7
+VIPer22A-E VIPer22ADIP-E, VIPer22AS-E
8
+
9
+Low power OFF-line SMPS primary switcher
10
+
11
+https://www.st.com/resource/en/datasheet/viper22a-e.pdf
12
+
13
+![](2026-05-15-14-50-59.png)
14
+
15
+
16
+## APP SCH
17
+
18
+- [[transformer-dat]] - [[TL431-dat]] - [[voltage-reference-dat]]
19
+
20
+![](2026-05-15-14-51-55.png)
21
+
22
+
23
+SCH2 == 12V 1A
24
+
25
+![](2026-05-15-15-01-33.png)
26
+
27
+## ref
28
+
29
+
Chip-dat/ST-dat/st-dat.md
... ...
@@ -28,7 +28,7 @@ Morse Micro Wi-Fi HaLow == https://www.morsemicro.com/products/
28 28
- [[power-switch-dat]]
29 29
30 30
31
-
31
+- [[ST-ACDC-dat]] - [[ACDC-dat]]
32 32
33 33
34 34
Chip-dat/TI-dat/TI-Power-dat/TL431-dat/2026-05-15-14-55-10.png
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Chip-dat/TI-dat/TI-Power-dat/TL431-dat/2026-05-15-14-56-01.png
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Chip-dat/TI-dat/TI-Power-dat/TL431-dat/TL431-dat.md
... ...
@@ -0,0 +1,21 @@
1
+
2
+
3
+
4
+# TL431-dat
5
+
6
+
7
+
8
+- [[TI-dat]] - [[TI-power-dat]] - [[TL431-dat]] - [[voltage-reference-dat]]
9
+
10
+
11
+![](2026-05-15-14-55-10.png)
12
+
13
+
14
+## SCH
15
+
16
+![](2026-05-15-14-56-01.png)
17
+
18
+
19
+
20
+## ref
21
+
Chip-dat/power-integrations-dat/LNK302-dat/LNK302-dat.md
... ...
@@ -0,0 +1,34 @@
1
+
2
+
3
+# LNK302-dat
4
+
5
+
6
+- [[power-integrations-dat]] - [[LNK302-dat]] - [[TNY267-dat]] - [[ACDC-dat]] - [[ac-mains-dat]]
7
+
8
+
9
+
10
+- LNK302/304-306 LinkSwitch-TN Family - Lowest Component Count, Energy-Efficient Off-Line Switcher IC
11
+
12
+
13
+- [TOP221-227 - TOPSwitch-II Family - Three-Terminal Off-Line PWM Switch](https://www.power.com/sites/default/files/documents/top221-227.pdf)
14
+
15
+![](2026-01-30-14-28-38.png)
16
+
17
+Output Power Table
18
+
19
+TO-220 (Y) Package1
20
+
21
+| PART ORDER NUMBER | Single Voltage Input 3100/115/230 VAC ±15% | Wide Range Input 85 to 265 VAC |
22
+| ----------------- | ------------------------------------------ | ------------------------------ |
23
+| | P, MAX 4,6 | P, MAX 4,6 |
24
+| TOP221YN | 12W | 7W |
25
+| TOP222YN | 25 W | 15W |
26
+| TOP223YN | 50 W | 30 W |
27
+| TOP224YN | 75 W | 45 W |
28
+| TOP225YN | 100 W | 60 W |
29
+| TOP226YN | 125 W | 75 W |
30
+| TOP227YN | 150 w | 90 W |
31
+
32
+
33
+## ref
34
+
Chip-dat/power-integrations-dat/TNY267-dat/2026-05-15-15-05-17.png
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Chip-dat/power-integrations-dat/TNY267-dat/TNY267-dat.md
... ...
@@ -0,0 +1,15 @@
1
+
2
+
3
+
4
+# TNY267-dat
5
+
6
+- [[TNY267-dat]] - [[TNY267]] - [[ACDC-dat]] - [[power-integrations-dat]]
7
+
8
+clean simple design
9
+
10
+![](2026-05-15-15-05-17.png)
11
+
12
+
13
+
14
+
15
+## ref
Chip-dat/power-integrations-dat/power-integrations-dat.md
... ...
@@ -1,31 +1,8 @@
1 1
2 2
# power-integrations-dat
3 3
4
-- LNK302/304-306 LinkSwitch-TN Family - Lowest Component Count, Energy-Efficient Off-Line Switcher IC
5
-
6
-
7
-- [TOP221-227 - TOPSwitch-II Family - Three-Terminal Off-Line PWM Switch](https://www.power.com/sites/default/files/documents/top221-227.pdf)
8
-
9
-![](2026-01-30-14-28-38.png)
10
-
11
-Output Power Table
12
-
13
-TO-220 (Y) Package1
14
-
15
-| PART ORDER NUMBER | Single Voltage Input 3100/115/230 VAC ±15% | Wide Range Input 85 to 265 VAC |
16
-| ----------------- | ------------------------------------------ | ------------------------------ |
17
-| | P, MAX 4,6 | P, MAX 4,6 |
18
-| TOP221YN | 12W | 7W |
19
-| TOP222YN | 25 W | 15W |
20
-| TOP223YN | 50 W | 30 W |
21
-| TOP224YN | 75 W | 45 W |
22
-| TOP225YN | 100 W | 60 W |
23
-| TOP226YN | 125 W | 75 W |
24
-| TOP227YN | 150 w | 90 W |
25
-
26
-
27
-
28 4
5
+- [[power-integrations-dat]] - [[LNK302-dat]] - [[TNY267-dat]] - [[ACDC-dat]] - [[ac-mains-dat]]
29 6
30 7
31 8
## ref
Tech-dat/MCU-dat/mcu-dat.md
... ...
@@ -178,6 +178,11 @@ Some versions (like ESP32-S3-WROOM-1U-N8R2) come with a built-in DC-DC converter
178 178
179 179
- [[STM8-dat]] - [[MCU-dat]] - [[LGT8F328-SSOP20-dat]]
180 180
181
+## MCU DIP8
182
+
183
+- [[attiny13-dat]] - [[attiny85-dat]]
184
+
185
+- STC8G1K17A-36I-DIP8
181 186
182 187
183 188
power-dat/ACDC-dat/ACDC-dat.md
... ...
@@ -2,6 +2,8 @@
2 2
# ACDC-dat
3 3
4 4
5
+== SMPS
6
+
5 7
- [[ac-mains-dat]] - [[ACDC-dat]]
6 8
7 9
[legacy wiki page](https://www.electrodragon.com/w/AC-DC)
... ...
@@ -118,6 +120,10 @@ Chip Solutions
118 120
119 121
- [[acdc-dat]] - [[ac-mains-dat]]
120 122
123
+- [[ST-ACDC-dat]] - [[ACDC-dat]] - [[VIPER22-dat]]
124
+
125
+- [[power-integrations-dat]] - [[LNK302-dat]] - [[TNY267-dat]] - [[ACDC-dat]] - [[ac-mains-dat]]
126
+
121 127
122 128
123 129
## ref
power-dat/voltage-dat/voltage-reference-dat/voltage-reference-dat.md
... ...
@@ -13,6 +13,8 @@
13 13
- [[sensor-dc-voltage-dat]]
14 14
15 15
16
+
17
+
16 18
## REF30
17 19
18 20
REF30E and REF30, Low Current Voltage Reference in SOT-23-3
... ...
@@ -36,22 +38,18 @@ for ADC-AVDD
36 38
37 39
38 40
- REF3025AIDBZR
39
-- TL431
40
-
41 41
42
+- [[TI-dat]] - [[TL431-dat]] - [[voltage-reference-dat]]
42 43
43 44
44 45
45
-## TL431
46
-
47
-
48 46
49 47
50 48
## voltage reference
51 49
52 50
- ADR435BRZ - Ultralow Noise XFET Voltage References with Current Sink and Source Capability
53 51
54
-- [[TL431-dat]] - [[voltage-reference-dat]]
52
+
55 53
56 54
- [[supervisory-dat]]
57 55