High Current Variable Voltage Regulator Circuit Diagram

Here is the variable high voltage dc power supply circuit which we can customize the output voltage from 0 to 311vdc and it is protected the current over the limit that we define at about 100 ma.

High current variable voltage regulator circuit diagram. High power dc regulator 4 20 volts 20 amps by lm338. 1 25 v to 32 v 10 a voltage adjustable regulator circuit by this regulator circuit output load can be connected up to 10 a load. The lm317 ic helps in current limiting thermal overload protection and safe operating area protection. Also the important is the overload protection.

Power follower circuit got confused what it is. In the circuit you can see the t1 is a mains transformer with a ratio of 1 1 for. 10 ampere adjustable voltage regulator using msk5012. It can also provide float operation for high voltage application.

Since it will immediately cut off when a load short circuit. The output current is 10 a of this circuit. The output voltage can be programmed using the two resistors r1 and r2. For a transformer that can supply at least 30 amperes and voltage secondary coil should not be less than 18 volts.

None other than a voltage follower with high current capability. You may like these lm338 5a variable regulator better life with high current in same voltage 1 25v to 30v. Diodes d1 d2 and d should be 1n4007 according to the edn article but common 1n4001 diodes will be fine as they are rated up to 50v which is. From all principles above we have circuits applications as shown in figure 4 if you want to add the ic lm338 enabling them to be higher current.

This is an easy to make dc to dc voltage regulator circuit using the reliable msk5012 ic. Here you will find how an ordinary lm317 circuit could be converted into a high current 20 amp variable power supply circuit using just a few 2n3055 power transistors in conjunction with a standard lm317 voltage regulator circuit stage. The circuit shown above from the edn article high current supply uses standard three terminal regulator has two lm7812 voltage regulators connected in parallel for a maximum total output current of 2 amps double the rated current of one lm7812. Which you can adjust output voltage in a wide range between 0v to 50v and a current at least 3a.

Circuit diagram lm317 voltage regulator ic.