If, like [Giovanni], you want to keep better track of your usage, you might find value in his DIY energy meter build ... possible to track voltage, current, frequency, and power factor, so ...

There’s many different ways of measuring current. If it’s DC, the easiest way is to use a shunt resistor and measure the voltage across it, and for AC you ... a (dual) power supply, an ...

This FAQ will look at the advantages and attributes of three-phase AC, also called multiphase or polyphase AC.

This article explains how to extend the battery lifetime of a device by adding a nanopower converter to an existing system, ...

Modern digital multimeters (DMMs) are user-friendly, accurate, and safe — when used correctly! Reading voltage is simple, but ...