Mini Bipolar Hbridge markt
Small surface mount Hbridge for 1A or so
Description
Small surface mount Hbridge for 1A or so, using super-beta output stages for very low voltage dropout. Adjust R5 and R6 for supply voltage (example: 220ohms for 5V, 470ohms for 12V). Bridge rectifier provides the free-wheeling diodes in one package.
Schematic
Board
Bill of Materials
| Designator | Value | Description |
|---|---|---|
| B1 | DF005S | Surface Mount Glass Passivated Bridge Rectifiers |
| C1 | 220nF | CAPACITOR, European symbol |
| C2 | 220uF | POLARIZED CAPACITOR, European symbol |
| R1 | 4k7 | RESISTOR, European symbol |
| R2 | 4k7 | RESISTOR, European symbol |
| R3 | 4k7 | RESISTOR, European symbol |
| R4 | 4k7 | RESISTOR, European symbol |
| R5 | 220 | RESISTOR, European symbol |
| R6 | 220 | RESISTOR, European symbol |
| R7 | 4k7 | RESISTOR, European symbol |
| R8 | 4k7 | RESISTOR, European symbol |
| U$1 | PBSS4032SPN | PBSS4032SPN dual NPN/PNP high current switchers |
| U$2 | PBSS4032SPN | PBSS4032SPN dual NPN/PNP high current switchers |
| U$3 | BC847BS | BC847BS dual NPN |
[JSON]
Files
| .solderpad/ | |
| board.png | 53.8 KB |
| bom.json | 1.4 KB |
| photo.jpg | 39.8 KB |
| schematic.png | 32.6 KB |
This project is © Mark Tillotson, and is published under the terms of the Creative Commons Attribution-ShareAlike 3.0 Unported licence.