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2 Nov 2011

How-To: Variable DC Power Supply @ MAKE – [via]

Hobbyist electronics projects need robust, reliable power supplies for prototyping and testing. I learned how to build this circuit from the Basic Analog Circuits class at ITP taught by Eric Rosenthal, but took it several steps further in building a solid enclosure and integrating a voltage meter. Now it lives on my desk, ready to power most small projects I’m working on, ranging from 0 – 24 volts and up to two amps. You can learn all about how to make one yourself using this Make: Projects tutorial.

The mini volt meter from Adafruit is what brought this project to the next level. All of the components on this three-digit, seven-segment display are packaged into a small size. All you need to do to integrate it into any project is attach a positive and negative lead to whatever you wish to measure.

Make a variable DC power supply - [Link]

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