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STD Adjustable Lab Power Supply 0-38V / 0-5A
License: Public Domain
Mode: Editors' pick
- 5
Update time：
2022-06-16 17:21:19
Creation time：
2021-05-26 07:25:01
Description
This is a simple adjustable power supply that with a outpun voltage from 0 to 38V and current 0 to 5A, but since this is a LINEAR power supply I highly recommend to use a large heatsink with active cooling in ordwer to use it up to 5 Amps.
Design Drawing
schematic diagram
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | 4.7uf | C1 | CPOL-RADIAL-10UF-25V | 1 |
| 2 | 2nF | C2 | RAD-0.2 | 1 |
| 3 | 10uf | C3,C4,C9 | CPOL-RADIAL-10UF-25V | 3 |
| 4 | 2.4V | D1 | DO-35F | 1 |
| 5 | 10V | D2 | DO-35F | 1 |
| 6 | 1N4007 | D3,D4 | DO-204AL_BD2.4-L4.7-P8.70-D1.1-RD | 2 |
| 7 | 204-10UYC/S530-A3 | LED3 | LED-3MM/2.54 | 1 |
| 8 | 50k | NTC1 | THERMISTOR-TH | 1 |
| 9 | KF350-3.5mm | P1,P2,P4 | KF350-2P | 3 |
| 10 | BARREL CONNECTOR | P3 | BARREL CONNECTOR | 1 |
| 11 | 10k | PR1 | POTENTIOMETER | 1 |
| 12 | 100k | PR2 | POTENTIOMETER | 1 |
| 13 | BC547 | Q1,Q2 | TO-92-3_L4.8-W3.7-P2.54-R | 2 |
| 14 | BD139 | Q3 | BD139 | 1 |
| 15 | BC557 | Q4,Q5,Q6 | TO-92(TO-92-3F)-2.54 | 3 |
| 16 | 2SD1047 | Q8 | TO-3P-3_L15.8-W4.8-P5.45-L | 1 |
| 17 | BD140 | Q9 | TO-126-3_L8.0-W3.3-P2.28-L | 1 |
| 18 | 1k | R1,R8 | AXIAL-0.4 | 2 |
| 19 | 0.1 5W | R2 | RESISTOR 5W | 1 |
| 20 | 25k | R4 | RES-ADJ_3296W | 1 |
| 21 | 250k | R5 | RES-ADJ_3296W | 1 |
| 22 | 100k | R6 | AXIAL-0.4 | 1 |
| 23 | 10k | R7,R10,R14 | AXIAL-0.4 | 3 |
| 24 | 8.2k | R9 | AXIAL-0.4 | 1 |
| 25 | 3.3k | R11 | AXIAL-0.4 | 1 |
| 26 | 2.2k | R12 | AXIAL-0.4 | 1 |
| 27 | 10k | R13 | RES-ADJ_3296W | 1 |
| 28 | Relay-SRA12V-CL | RL1 | RELAY-SRA-12V-CL | 1 |
| 29 | L7812 | U2 | TO-220(TO-220-3) | 1 |
| 30 | LM358P | U3 | DIP-8_L9.4-W6.4-P2.54-LS9.1-BL | 1 |
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