High Current Variable Voltage Regulator Circuit

The lm317 ic helps in current limiting thermal overload protection and safe operating area protection.

High current variable voltage regulator circuit.

The circuit can be employed on occasions when a current of more that 3a is demanded for regulator. The lt1038 is a three terminal adjustable voltage regulator which is capable of providing of 10a output high current at 1 2v to 32v range. It is good quality excellent performance and durable with pcb. Since it will immediately cut off when a load short circuit.

Which you can adjust output voltage in a wide range between 0v to 50v and a current at least 3a. This is 0 30v 5a variable benchtop power supply circuit with voltage and current adjustable system. The transformer t1 steps down mains voltage to 12rms the rectifier bridge d1 rectifies it to produce a. You may like these lm338 5a variable regulator better life with high current in same voltage 1 25v to 30v.

Below are some advantages for selecting the linear voltage regulator approach. This regulator is 0 50v variable power supply circuit. By itself it will supply output currents up to 150 ma. The high current lm317 power supply circuit shown down the page makes use of an supplemental winding or possibly a independent transformer to deliver power to the lm317 regulator in order that the outboard pass transistors are able to work nearer to saturation and strengthen efficiency.

It can give the output current 20a or 400watts and can adjust the voltage of 4 to 20v or apply to 0 to 30v easily. In the circuit you can see the t1 is a mains transformer with a ratio of 1 1 for. Circuit diagram lm317 voltage regulator ic. This may be a better choice for you.

The output voltage 0 30v and a maximum current of 5a. Ic regulators of such high current rating are pretty hard to find. Use lm723 as a voltage regulator designed primarily for series regulator applications. This gives the circuit a current range of i 1 25 r and 1 25 r x 1 r1 r2 depend on the set current.

Also the important is the overload protection. Advantages and disadvantages of using ldo as current regulator. The output current is 10 a of this circuit. 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.

It can also provide float operation for high voltage application. It s an adjustable three terminal voltage regulator ic with a high output current value of 1 5a. Looking at the proposed high current lm317 regulator circuit design we can see how the basic lm317 variable power supply design which is normally rated to deliver just 1 amp current is cleverly upgraded to a high current version using a few 2n 3055 transistors. This voltage regulator circuit can deliver up to 3a at 12v output voltage.