DC Power Meter for 0-55V 20A Work Bench Power Supply

This project describes how to make a low-cost DC power meter that can be used for displaying Voltage, current, power and the running time of operation. This is useful and can be used as the display for your bench power supply too. This can be used in the display section of a 0-55 v battery charger, so the time elapsed gives you the actual time of charging the battery. The measurable voltage range of this ci ...

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