Electronics and technology blog    /    Materials for November 2022 year

A common question is which power supply to choose for powering an amplifier, LED lighting, an adjustable converter, and other equally useful devices. Choosing a power supply is an important task, so let's take a look at how they differ and how to choose “the one.”

Sometimes it feels like voltage converters are everywhere, even in places where you wouldn't expect to find them. You can find them in power banks, smartphones, TV boxes, computers, USB hubs, routers, and many other devices. But converters are also sold as standalone modules, intended for everything from hobbyist projects to professional use. And today, we're going to talk about these "invisible helpers".

Last time, we looked at relatively compact devices for storing electricity that can help you charge your phone, laptop, or tablet. But I can already hear the obvious question: what do you do when you need to power something more demanding, or something that requires AC? So yes, today I’ll talk about uninterruptible power supplies and the finer points of using them.

Lately, I’ve been asked several times about the same thing: how to keep various devices and appliances running when the power goes out. Today I wanted to talk a little about it so I don’t have to repeat my answers in private messages and can save myself some time while giving you a more complete answer.

Some batteries I’d never seen before landed in my hands—or, to be more precise, they first landed with a friend of mine. He wanted to find out more about them, so he asked me to test them in different modes and give him my opinion.