Variable Dc Power Supply Circuit Diagram

We ll now go over each part of this circuit and go over the role each component plays so that you can know how this circuit works.

Variable dc power supply circuit diagram.

0 50v 3a variable power supply circuit. 0 30v variable power supply at 3a two resistors r1 and r2 limit the overload current. A lm317 is a versatile device which helps an electronic hobbyist to build a variable voltage power supply quickly cheaply and very efficiently. A power supply can be given from the battery or from a hardware circuitry which converts the ac supply into the dc supply or step down ac to step up ac and vice versa.

Dc power supply schematic diagram. Continuously variable short circuit and overload protected hum free stabilized output. For smaller voltages we normally use batteries as a reliable source. Above are the parts needed to create a dc power supply.

They work together with two transistors tr1 tr2. When the current exceeded tr1 and tr2 will work. A variable dc power supply is very important for electronics projects prototyping and hobbyists. Below is the schematic for the dc power supply so that we can see how all the parts are connected and are brought together.

And there are ic1 is used to control a voltage at out point by adjusting vr1 can adjust voltage between 0 50 volts. As the name suggests a variable power supply circuit provides the user with a range of linearly varying output voltages through a manually controlled potentiometer rotation. Instead of using batteries which have a limited lifetime a variable dc power supply can be used which is implemented in this project.