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100 amp Variable Voltage Power Supply Circuit Diagram

Last Updated on January 17, 2025 by Swagatam 121 Comments

100 amps 100V

The post describes a  simple but extremely versatile 100 amp, variable voltage power supply circuit using just a few BJTs in parallel and in a common collector mode. The idea was requested by Mr. Andre. Technical Specifications Hello Swagatam, I was wondering if you could possibly assist me. on the blogs I have seen some […]

Filed Under: Power Supply Circuits Tagged With: 100, Power, Supply, Variable, Voltage

0-60V LM317HV Variable Power Supply Circuit Diagram

Last Updated on January 17, 2025 by Swagatam 86 Comments

317hv

The high voltage LM317HV series of ICs will allow to go beyond the traditional voltage limits of an LM317 IC and enable controlling supplies that may be as high as 60V. 0-60V Regulation with a Single IC LM317 Therefore now you can build a universal 0-60V regulated power supply circuit loaded with all the essential […]

Filed Under: Power Supply Circuits Tagged With: 60V, LM317HV, Power, Supply, Variable

0 to 50V, 0 to 10amp Variable Dual Power Supply Circuit

Last Updated on September 8, 2023 by Swagatam 297 Comments

In this post I have explained a simple yet very useful 0 to 50V dual power supply circuit which will enable a full 0 to maximum dual voltage +/- control of the input power supply DC. It also includes a wide range current control feature right from 0 to 10 amps. The idea was requested […]

Filed Under: Power Supply Circuits Tagged With: 10amp, 50V, Dual, Power, Supply, Variable

Variable Voltage, Current Power Supply Circuit Using Transistor 2N3055

Last Updated on May 13, 2022 by Swagatam 318 Comments

Power Supply 1

In this post I have explained how to make a simple variable power supply circuit using transistor 2N3055 and some other passive components. It includes variable voltage and variable current feature, fully adjustable. Main Specifications 1) Adjustable from 0-30V, 0-60V, and 0-100V, and 500mA to 10 Amp as per user preference 2) Short Circuit Protected […]

Filed Under: Power Supply Circuits Tagged With: Current, Power, Supply, Transistor, Variable, Voltage

IC 7805 Variable Power Supply Circuit [5V to 15V]

Last Updated on September 11, 2021 by Swagatam 12 Comments

7805 resistive divider values compressed

Although, a 7805 IC is mostly used as a fixed 5 V voltage regulator, it is possible to configure a 7805 IC to produce a variable output from 5 V and higher, depending up the input DC supply. In this post I have explained a simple circuit network which can be used for getting an […]

Filed Under: Power Supply Circuits Tagged With: 15V, 7805, Power, Supply, Variable

LM324 Variable Power Supply Circuit

Last Updated on July 6, 2019 by Swagatam 206 Comments

power supply

The presented universal power supply circuit can be used just for anything, you can use it as a solar battery charger, bench power supply, mains battery charger circuit, or for any desired application regardless of the voltage and current range, which are extremely flexible and fully adjustable. Main Features: The mains features of this power […]

Filed Under: Power Supply Circuits Tagged With: LM324, Power, Supply, Variable

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