Selecting HV MOSFETs for energy savings

摘要

High-voltage MOSFET technology has undergone much change in the past few years, bringing the power supply engineer many option's. Understanding the subtleties of the different MOSFETs and the stresses seen in different switching circuits helps engineers avoid problems and maximize efficiency. The implications of higher current density and faster switching speeds along with other aspects of MOSFETs beyond simple R_(DS_((on))) are important factors, as are some rules of thumb for replacing older MOSFETs with newer types.