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STD adjustable power supply
Mode: Editors' pick
- 1
Update time：
2021-10-16 11:35:22
Creation time：
2019-08-22 13:18:21
Description
Using TL494 PWM controller
Design Drawing
schematic diagram
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | 2.2nF | C1 | RAD-0.2 | 1 |
| 2 | 1u | C2,C3,C4,C6 | CAP-D10.0XF5.0 | 4 |
| 3 | 1u | C5 | CAP-D6.3XF2.5 | 1 |
| 4 | MBR30100CTP | D1 | TO-220AB | 1 |
| 5 | inductor 4 wire | L2 | INDUCTOR FOR ADJUSTABLE | 1 |
| 6 | IN12-30V DC | P1 | HDR-1X1/2.54 | 1 |
| 7 | GND | P2 | HDR-1X1/2.54 | 1 |
| 8 | + OUTPUT | P3 | HDR-1X1/2.54 | 1 |
| 9 | - OUTPUT | P4 | HDR-1X1/2.54 | 1 |
| 10 | BD140 | Q1 | TO-126 | 1 |
| 11 | BD139 | Q2 | TO-126 | 1 |
| 12 | IRF4905PBF | Q3,Q4 | TO-220(TO-220-3) | 2 |
| 13 | 10K | R1 | AXIAL-0.4 | 1 |
| 14 | 6K8 | R2,R13 | AXIAL-0.4 | 2 |
| 15 | 4K7 | R3 | AXIAL-0.4 | 1 |
| 16 | 220R | R4,R6 | AXIAL-0.4 | 2 |
| 17 | 1k | R5,R8 | AXIAL-0.4 | 2 |
| 18 | 680R | R7 | AXIAL-0.4 | 1 |
| 19 | 0R025 | R9 | AXIAL-0.8 | 1 |
| 20 | 4R7 | R10,R11 | AXIAL-0.4 | 2 |
| 21 | 270R | R12 | AXIAL-0.4 | 1 |
| 22 | TL494CN | U1 | DIP-16 | 1 |
| 23 | POT FOOTPRINT OF 3PIN HEADER | U2,U3 | POT 2.54 FOOTPRINT | 2 |
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