Adjustable power supply (source) with integrated circuit lm350 high current
This regulated power supply uses the integrated circuit LM350K (metallic package TO-3) or Lm350T (TO-220) which allows to adjust the output voltage between 1.2 and 33V with currents of up to 3 Amperes.
An accessory that can facilitate your project is to use one of these modules of voltmeter and ammeter with display of led, available in electronics stores. If you have the patience you can even order from China for a price on account.
Circuit diagram for mounting the power supply with CI Lm350
Printed Circuit Board Suggestion
| Component | Value |
| Resistors | |
| R1 | 1.8k 1W |
| R2 | 220 |
| Capacitors | |
| C1 | 6800µF – Capacitor Electrolytic |
| C2, C5 | 100nF – Capacitor Ceramic |
| C3 | 10µF – Capacitor Electrolytic |
| C6 | 100µF – Capacitor Electrolytic |
| Semiconductors | |
| B1 | KBU608 (800V/6A) or equivalent- Bridge Rectifier |
| D1, D2 | 1N4004 – Diode |
| IC1 | LM350T or LM350K- Positive Adjustable Voltage Regulator 3A |
| Connectors | |
| AC | 3 Pin Screw Terminal Block Connector – AC Input |
| DC | 3 Pin Screw Terminal Block Connector – DC Output |
| LED1 | Red Led 5mm |
| Miscellaneous | |
| POT | 4.7K – Single potentiometer |
| Printed Circuit Board, Solder, Wire, Transformer according to design, Box, heat sink for Lm350, etc. | |
