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Completed
STD DC-DC step up converter PCB-4
DC-DC step up converter PCB-4
License
Public Domain
License: Public Domain- 1
Update time：
2024-10-27 16:08:15
Creation time：
2024-09-01 16:10:16
Description
Description
Boost converter module to replace MT3608 with a more powerful one. The module is specially designed for use in watches with fluorescent indicators such as IV-3, IV-6 and others. The printed circuit board can be made at home. The board dimensions are 36.5x23.5 mm. The circuit can use any field-effect transistors with drain-source voltage from 55V to 100V. I used IRF3205. A 31k resistor made from two 62k resistors connected in parallel.
Design Drawing
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity | |
|---|---|---|---|---|---|
| 1 | 10u 10V | C3 | C0805 | 1 | |
| 2 | 470R | R4 | R0805 | 1 | |
| 3 | UF4004 | D1 | DO-41_BD2.4-L4.7-P8.70-D0.9-RD | 1 | C402308 |
| 4 | 100uH | L1 | IND-TH_BD6.0-P3.00-D0.6 | 1 | C326018 |
| 5 | IRFZ44NPBF | Q1 | TO-220-3_L10.0-W4.5-P2.54-L | 1 | C2586 |
| 6 | BC547BTA | Q2 | TO-92-3_L4.8-W3.7-P2.54-L | 1 | C258144 |
| 7 | 31k | R3 | R0805 | 1 | |
| 8 | 100uF 50V | C2 | CAP-D8.0×F3.5 | 1 | |
| 9 | HDR-M-2.54_1x1 | J1,J4,J2,J3 | HDR-M-2.54_1X1 | 4 | C81276 |
| 10 | NE555DR | U1 | SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL | 1 | C7593 |
| 11 | 0.01u | C1 | C0805 | 1 | |
| 12 | 3k | R1 | R0805 | 1 | |
| 13 | 1k | R2 | R0805 | 1 |
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