AN708 Overview
AN708 Vishay Siliconix Low-Power Universal-Input Power Supply Achieves High Efficiency Expanding global markets have created a demand for what have bee known as universal-input power supplies that is, power supplies that allow devices to be plugged into wall outlets anywhere in the world. These power supplies must be able to operate directly from 100-, 110-, and 220-V ac power lines without the use of selector...
