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:: Home » Power supply

Power supply

LM337 Adjustable Negative Voltage Regulator Circuits

Published on: May 3, 2025 by Apichet Garaipoom
LM337 Adjustable Negative Voltage Regulator

The LM337 is a 3-terminal adjustable negative voltage regulator. It can supply from -1.2V to -37V at 1.5A or more with minimum components. Read more

Categories Power supply Leave a comment

3V to 12V DC Boost Converter Circuit

Last Updated on: March 19, 2025 by Apichet Garaipoom
DC Boost Converter circuit 3-5V to 12V-13.8V

I like the 12V LED. But I have only 3V of batteries. So, No light. When using this circuit, I can get light of the LED at 100 mA. And, an adjustable output voltage.

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Categories DC converters, Switching Mode Tags DC Converter ICs, MC34063, Voltage Doubler Circuits 14 Comments

USB 5V to 12V DC-to-DC Step-Up Converter Circuit

Published on: March 15, 2025 by Apichet Garaipoom
USB 5V to 12V DC-DC Step-Up Converter circuit

This circuit offers a variety of Buck DC to DC converters. Because as circuit increase voltage as the usb 5v to 12v dc-dc step-up converter. This circuit is called Boost converter circuit. Read more

Categories DC converters, Switching Mode Tags 5V to 12V DC converters, Simple DC Converters, Step Up Converters 7 Comments

Simple 12V Power Supply Circuit

Last Updated on: March 19, 2025 by Apichet Garaipoom
How to Build a Simple 12 volts power supply circuit

This simple 12V power supply circuit has a scalable current of 2A or more. It is an easy-to-make, low-noise, reliable, and durable circuit. Read more

Categories Power supply Tags 12V Power Supply, Homeschooling 2 Comments

4 Buck Converter Circuit | Step-down Converter

Last Updated on: March 10, 2025 by Apichet Garaipoom
4 buck converter circuits and step-down-voltage

Here are 4 examples of a buck converter circuit or step-down converter. There are many ways to make it, such as using transistors or ICs. Read more

Categories DC converters, Switching Mode Tags DC converter step down voltage, MC34063, Switching Regulator IC Leave a comment
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