DIY Variable DC Power Supply with Display and PC interface

A variable bench power supply is an important equipment in electronics lab for conducting experiments, prototytyping, and testing. This cool-looking DIY bench power supply provides fixed 5V and 12V outputs along with a separate variable DC output ranging from 1.2 to 25V. The on-board LCD display shows instantaneous output voltage, current, and power drawn, which are very important parameters during prototyping of a new project. The power supply can also be connected to a PC through RS232 port to visualize and monitor these parameters graphically on screen. The project uses Atmega8 microcontroller for measuring and displaying the electrical output parameters.

DIY variable power supply

DIY variable power supply


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