Variable Dc Power Supply Circuit Diagram

0 30v variable power supply at 3a two resistors r1 and r2 limit the overload current.

Variable dc power supply circuit diagram. 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. 1 25v dc continuously variable 0 2amps. And there are ic1 is used to control a voltage at out point by adjusting vr1 can adjust voltage between 0 50 volts. When the current exceeded tr1 and tr2 will work.

They work together with two transistors tr1 tr2. A variable power supply is one which facilitates the user to vary and adjust the desired output voltage and output current. 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. Below is the schematic for the dc power supply so that we can see how all the parts are connected and are brought together.

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. 0 50v 3a variable power supply circuit. Above are the parts needed to create a dc power supply. Dc power supply schematic diagram.

Continuously variable short circuit and overload protected hum free stabilized output. A variable dc power supply is very important for electronics projects prototyping and hobbyists. A lm317 is a versatile device which helps an electronic hobbyist to build a variable voltage power supply quickly cheaply and very efficiently.