Testing for failure with a multimeter is only partially effective, whereas a dedicated optocoupler testing circuit provides ...

Despite their limited use for testing wall chargers and power banks, USB inline testers let you compare power sources. In three videos, we take you through their features, and we also try an inline ...

A capacitor is an essential component in many electrical and electronic circuits. It stores and releases electrical energy when needed, helping regulate voltage and maintain power stability. Over time ...

The test setup was powered with a lab power supply at 5.0 V, optionally at 3.7 V for rechargeable Li-ion batteries, or 12 V if the board supports it. The current was measured both with a UNI-T UT61E ...

This is a GAL IC programmer software that allows to program GAL IC chips from various manufcaturers. It is based on work of several other people: whitequark · it ...

With the StarTech.com USB-C Power Tester, you can easily look for charging problems in your setup. It’s a quick and easy way to ensure your devices are getting all the power they’re supposed to. I ...

We will refer to these article collections as “Breadboards,” “Tools,” and “Components” for short. We’re assuming that we are in possession of a full-size breadboard and associated wires (Components, ...

We may receive a commission on purchases made from links. There's nothing more annoying than checking the time on your wall clock and realizing the battery's already dead, or plopping down on your ...

While using a digital multimeter to diagnose electrical problems on customers’ equipment, I frequently hear the comment, “I’ve got one of those multimeter things, but I never learned how to use it.” ...

Pickering Interfaces has announced a new family of PXI and PXIe programmable resistor modules, its first that can handle up to 2A and 200V (or as limited by max power). Credit: Pickering Interface ...

Measuring rise time for a power source. Voltage vs. time signals measurements via a scope. A practical setup for battery testing. I was recently asked a question about a dc power supply, aka a voltage ...