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STD 12 VDC to 9 VDC(DONE)-Fabricated
12 VDC to 9 VDC(DONE)-Fabricated
License
Public Domain
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Update time：
2021-02-07 00:16:32
Creation time：
2017-10-10 18:00:41
Description
Description
Adapter to convert 12 VDC to 9 VDC using LM317 voltage regulator
Design Drawing
Design Drawing
schematic diagram
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | Yellow | LED2,LED1 | LED-3MM/2.54 | 2 |
| 2 | LM317T-DG | U1 | TO-220(TO-220-3) | 1 |
| 3 | 4.7 k | R1 | AXIAL-0.3 | 1 |
| 4 | 100 | R2 | AXIAL-0.3 | 1 |
| 5 | 680 | R3,R8 | AXIAL-0.3 | 2 |
| 6 | 3.3k | R4 | AXIAL-0.3 | 1 |
| 7 | Input | P1 | WJ2EDGVC-5.08-2P | 1 |
| 8 | Output | P2 | WJ2EDGVC-5.08-2P | 1 |
| 9 | 100k | R5 | RES-ADJ_3296X | 1 |
| 10 | 0.1uf | C4,C1 | RAD-0.1 | 2 |
| 11 | 470 | R7 | AXIAL-0.3 | 1 |
| 12 | 33k | R6 | AXIAL-0.3 | 1 |
| 13 | 1k | R9 | AXIAL-0.3 | 1 |
| 14 | Barrel Connector | U2 | BARREL CONNECTOR | 1 |
| 15 | 2N3904 | Q1 | TO-92(TO-92-3) | 1 |
| 16 | 1u | C3 | CAP-D6.3XH5.5 | 1 |
| 17 | 10u | C6-SMD | CAP-D6.3XH5.5 | 1 |
| 18 | 1N4007 | D2,D1,D3 | DO-41 | 3 |
| 19 | from MCU to Shutdown | P3 | HDR-1X1/2.54 | 1 |
| 20 | Heatsink-1 | KK1 | 531XXXXXXXX | 1 |
| 21 | 10uF | C5,C2-THT | CAP-D10.0XF5.0 | 2 |
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