This circuit, designed on request, has proven to be useful to indicate when the voltage in a power supply line is changing from 120V to 240Vac. It can be used in different circumstances and circuits, ...

In our data center we are going to be moving all of our dual power supplied IBM servers (auto sensing 110/220) from an outdated 110 system of dumb power strips to an updated in rack 0u 220 monitored ...

I have a couple of Chinese programmable lab power supplies. Both switch mode power supply (SMPS) systems are rated for 110V-220V AC input. But the UNI-T UTP1306 power supply has an input voltage ...

When you're travelling internationally, you just need a normal travel adapter, right? Well, in most cases, yes. If you just ...

I've just purchased a used HP 33U server rack to use in my house for A/V and other equipment but it currently has a built-in power strip (and fans) that plug into a 220 volt outlet. The guy I ...