Variable Dc Power Supply Circuit Diagram

And there are ic1 is used to control a voltage at out point by adjusting vr1 can adjust voltage between 0 50 volts.

Variable dc power supply circuit diagram.

Dc power supply schematic diagram. A variable dc power supply is very important for electronics projects prototyping and hobbyists. 0 50v 3a variable power supply circuit. For smaller voltages we normally use batteries as a reliable source.

Continuously variable short circuit and overload protected hum free stabilized output. They work together with two transistors tr1 tr2. 1 25v dc continuously variable 0 2amps. 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.

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. Above are the parts needed to create a dc power supply. 0 30v variable power supply at 3a two resistors r1 and r2 limit the overload current. Instead of using batteries which have a limited lifetime a variable dc power supply can be used which is implemented in this project.

Below is the schematic for the dc power supply so that we can see how all the parts are connected and are brought together. 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. When the current exceeded tr1 and tr2 will work.