Variable Dc Power Supply Circuit Diagram

Continuously variable short circuit and overload protected hum free stabilized output.

Variable dc power supply circuit diagram.

0 50v 3a variable power supply circuit. A variable dc power supply is very important for electronics projects prototyping and hobbyists. Above are the parts needed to create a dc power supply. When the current exceeded tr1 and tr2 will work.

For smaller voltages we normally use batteries as a reliable source. Dc power supply schematic diagram. And there are ic1 is used to control a voltage at out point by adjusting vr1 can adjust voltage between 0 50 volts. Below is the schematic for the dc power supply so that we can see how all the parts are connected and are brought together.

1 25v dc continuously variable 0 2amps. They work together with two transistors tr1 tr2. 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. 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.

Instead of using batteries which have a limited lifetime a variable dc power supply can be used which is implemented in this project. The circuit of a universal power supply described here complete with schematic diagram and parts list fulfills all the above criteria and more importantly the construction costs hardly anything. 0 30v variable power supply at 3a two resistors r1 and r2 limit the overload current.