adjustable voltage regulator board pcb lm350
LM350 adjustable voltage regulator board 3D

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.

LM350K
lm350

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.

Ampere Voltage meter Led display

Circuit diagram for mounting the power supply with CI Lm350

LM50 adjustable voltage power supply schematic

Printed Circuit Board Suggestion

LM50 adjustable voltage power supply PCB
LM50 adjustable voltage power supply board
ComponentValue
Resistors
R11.8k 1W
R2220
Capacitors
C16800µF – Capacitor Electrolytic
C2, C5100nF – Capacitor Ceramic
C310µF – Capacitor Electrolytic
C6100µF – Capacitor Electrolytic
Semiconductors
B1KBU608 (800V/6A) or equivalent- Bridge Rectifier
D1, D21N4004 – Diode
IC1LM350T or LM350K- Positive Adjustable Voltage Regulator 3A
Connectors
AC3 Pin Screw Terminal Block Connector – AC Input
DC3 Pin Screw Terminal Block Connector – DC Output
LED1Red Led 5mm
Miscellaneous
POT4.7K – Single potentiometer
Printed Circuit Board, Solder, Wire, Transformer according to design, Box, heat sink for Lm350, etc.

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