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STD LED-PWM
LED-PWM
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CC-BY-NC-SA 3.0
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Update time：
2024-07-12 11:43:03
Creation time：
2022-01-09 19:52:58
Description
Description
This is an PWM LED controller with 4 channels and 3A per channel. It is intended to be controlled by an an ESP32 on the 2*20 pin headers and requires an extra power control module that converts VCC to 3.3V. The design VCC is 5V to 24V.
Note: Neiter H1, H2 nor any J component is properly select, as I didn't use pre assembled parts for this. Instead they are spaced correctly on the pcb for 7x5.08mm power connectors and 20x2.54 female pin headers.
Design Drawing
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | SS34_C8678 | D1,D2,D3,D4 | DO-214AC_L4.3-W2.7-LS5.3-RD | 4 |
| 2 | HDR-F-2.54_1x20 | H1,H2 | HDR-F-2.54_1X20 | 2 |
| 3 | HDR-M-2.54_1x1 | J1,J2,J3,J4,J5,J6,J7 | HDR-M-2.54_1X1 | 7 |
| 4 | CONN-TH_2P-P5.00 | P1,P2 | CONN-TH_2P-P5.00 | 2 |
| 5 | AO3400A | Q1,Q2,Q3,Q4 | SOT-23-3_L2.9-W1.6-P1.90-LS2.8-BR | 4 |
| 6 | 330 | R1,R2,R3,R4 | R0603 | 4 |
| 7 | 40.2kΩ | R5,R6,R7,R8 | R0603 | 4 |
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