This repository contains a KiCad project for a Korad KA3005P display driver, included are the schematic, pcb layout and gerber files. This board can replace the existing KA002_V3.x PCB in a Korad KA3005P (or KA3005D) power supply.
Below you'll find the bill of materials for this board. The original PCB comes with 4.0mm LEDs, but I went for 5.0mm because those are more readily available.
| ID | Designator | Description | Quantity |
|---|---|---|---|
| 1 | C1 | Capacitor, Ceramic, 22uF, 25V, 10%, X7R, 0805 | 1 |
| 2 | LED1, LED2 | 4-Digit 7-Segment LED Display, Red, Common Cathode, TH, 0.40" | 2 |
| 3 | R17, R18, R19, R20, R21 | Resistor, 1k Ohm, 1%, 1/8 W, 0805 | 5 |
| 4 | Q4, Q5, Q6, Q7, Q8 | NPN Transistor, MMBT3904, SOT-23-3 | 5 |
| 5 | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10 | LED, Red, TH, 4.0mm (or 5.0mm) | 10 |
| 6 | U18 | Low Dropout Linear Regulator, AZ1117-3.3, SOT-223 | 1 |
| 7 | R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16 | Resistor, 330 Ohm, 5%, 1/4 W, 0805 | 16 |
| 8 | U1, U3 | 8-Bit Shift Register, 74HC595, SOIC-16 | 2 |
| 9 | CON1 | Female Header, 12-Pin (2x6), 2.54mm | 1 |
The finished board:
Bare PCB (front and back):
This work is licensed under a Creative Commons Attribution 4.0 International License.
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