When the current exceeded tr1 and tr2 will work.
0 30v variable power supply circuit.
Use lm723 as a voltage regulator designed primarily for series regulator applications.
0 30v variable power supply at 3a two resistors r1 and r2 limit the overload current.
A transformer is used to step down the ac supply to 24v at 2a.
But it still has the same characteristics as a fixed regulated power supply.
Adjustable power supply circuit.
And there are ic1 is used to control a voltage at out point by adjusting vr1 can adjust voltage between 0 50 volts.
If you need ac power supply is cheaper this project is a good way.
Use ic lm723 is a voltage regulator designed primarily for series article by electronics projects circuits.
The circuit also incorporates an electronic output current limiter that effectively controls the output current from a few milliamperes 2 ma to the maximum output of three amperes that the circuit can deliver.
Transistor variable power supply 1a 0 30v.
It is a robust reliable and easy to use variable dc power supply.
The working of the circuit is as follows.
To cater that i have designed an adjustable 0 30v 0 10a regulated variable adjustable power supply circuit with a variable output from 0v to 30v and adjustable current limiting from 0a to 10a.
0 30v 0 5a regulated variable power supply circuit high current with parallel lm338 in normal ic lm338 can supply up to 5 amps but to load current maximum 20 amps we will bring it to parallel.
You can increase its output ampere just add more tip3055 transistor in parallel.
A lm317 is a versatile device which helps an electronic hobbyist to build a variable voltage power supply quickly cheaply and very efficiently.
This is 0 30v 5a variable benchtop power supply circuit with voltage and current adjustable system.
0 50v 3a variable power supply circuit.
0 30v 5a variable benchtop power supply circuit output voltage 0 30v and current 5a max.
What is a variable power supply.
This is a high quality power supply with a continuously variable stabilised output adjustable at any value between 0 and 30vdc.
It will keep a stable voltage when it has any load.
This is an ac variable power supply circuit that applies the output of 0 30v at 3a by using electronic components are bridge diode as main and control voltage by potentiometer easily.
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.
They work together with two transistors tr1 tr2.