A PWM-controlled regulator, this time using a logic gate IC, op-amp, and resistors and capacitors to buffer the PWM signal.

You'll notice that not all electrical plugs are the same and might even have different inserts depending on the country. Here ...

"Phase converters add another layer of complexity to any facility," writes Michael Baldauf in this Tech Tips article.

Information provided on Forbes Advisor is for educational purposes only. Your financial situation is unique and the products and services we review may not be right for your circumstances.

Packing for an international trip? Don't forget to pack your travel adapters and converters. Here's how to know what you need ...