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Power Supply Circuits

12V DC to 220V DC Boost Converter Circuit

Last Updated on January 18, 2025 by Swagatam 118 Comments

12v2Bto2B220v2Bboost2Bcircuit2Busing2B5552Bic

In this article I have explained a very simple method of acquiring 220V DC from a 12V DC source. The idea utilizes inductor/oscillator based boost topology with the help of the IC 555. Circuit Operation Referring to the circuit diagram below, we see that the entire idea is based upon the versatile, evergreen IC 555. […]

Filed Under: Power Supply Circuits Tagged With: 12V, 220V, Boost, Converter, DC

12 Amp Power Supply Circuit using Parallel LM317 ICs

Last Updated on January 18, 2025 by Swagatam 4 Comments

LM317 parallel 12 amp power supply circuit

This adjustable power supply is capable of delivering a maximum output of 12 A with an adjustable voltage from 4 V to 20 V through many LM317 ICs connected in parallel. It will allow testing of any device requiring a significant power supply, such as a direct current motor, a car amplifier, or even a […]

Filed Under: Power Supply Circuits Tagged With: LM317, Parallel, Power, Supply

100V Regulated Power Supply Circuit Diagram with Over Current and Short Circuit Protection

Last Updated on January 17, 2025 by Swagatam 5 Comments

adjustable regulated power supply circuit with current limit and short circuit protection

A trustworthy and adaptable power source is essential in the world of electronic circuits. The design we present here not only offers a regulated output voltage range of 50V to 100V but also integrates safeguards to prevent potential mishaps. Let’s examine the specifics of this power supply circuit, discovering its special characteristics and how it […]

Filed Under: Power Supply Circuits Tagged With: 100V, Current, Over, Power, Regulated, Supply

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

1.5V to 12V DC Converter Circuit Diagram for LEDs

Last Updated on January 17, 2025 by Swagatam 31 Comments

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The post provides interesting information regarding the making of a 1.5V to 12V converter circuit using a couple of transistors and an inexpensive coil. The idea was requested by Mr. Keith. The Circuit Request I found your blog and have searched for an answer to my question but I’m just not finding it…. What I want to do […]

Filed Under: Power Supply Circuits Tagged With: 12V, Converter, DC, LEDs

1.5V Power Supply Circuit Diagram for Wall Clock

Last Updated on January 17, 2025 by Swagatam 181 Comments

wall2Bclcock2Bsupply

The post presents a simple transformerless 1.5V DC power supply circuit which can be used for powering wall clocks directly from mains, and also keep a stand by back-up cell fully charged for enabling an uninterrupted operation of the clock even during mains failures. The idea was requested by Cheekin Warning: This circuit is not […]

Filed Under: Power Supply Circuits Tagged With: Clock, Power, Supply, Wall

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