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Power MOSFET Basics: Understanding Gate Charge And Using It To Asses Switching Performance


By Vishay

This application note defines the fundamental behavior of MOSFETs, both as standalone devices and as switching devices implemented in a Switch Mode Power Supply (SMPS). Additional topics include the switching behavior of a MOSFET when used in a practical application circuit, how to choose the right device from minimal information on a datasheet, as well as several methods for assessing the MOSFET performance. Download the full article for more information.