Voltage regulator for old motorbikes.
Schema, production files in the format needed for Seeed Studio.
Screw the thyristor to the chassis, this fixes the whole PCB. Connect the wire from the generator to P2. Adjust the voltage using the potentiometer.
This wire doesn't need to be connected, the connection can be made by screwing the heat sink of the thyristor to the chassis.
| 1 | /PLUS | Connected to the chassis. |
| 1 | /MINUS | Connected to the generator output. |
| Ref. | Count | Price ~ | Description |
|---|---|---|---|
| 1 | 2.00 | PCB | |
| C1 | 1 | 0.20 | 22uF |
| D1 | 1 | 0.10 | 1N4004 |
| D2 | 1 | 0.10 | 5.1V |
| Q1 | 1 | 0.20 | BC337 |
| Q2 | 1 | 2.00 | S0805MH |
| R1 | 1 | 0.10 | 470 |
| R2 | 1 | 0.10 | 1k |
| RP1,RP2 | 1 | 0.20 | 1k, two footprints for the same potentiometer. |
Total price is around $5.
