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近年来,应用半导体元件的电力变换、控制等所谓电力电子技术取得了显著进展.以此为背景,一方面存在着使各种装置节能化、小型轻量化的社会需求;另一方面,电力半导体元件的功能、性能大幅度提高,使其实现成为可能。作为电机传动用电力半导体元件,以前主要是功率晶体管和普通晶闸管.然而,近来MOS场效应晶体管和可关断晶闸管(GTO)已实用化,其应用正迅速地扩展。这里就这些电力半导体元件的现状与今后的动向作一概述. 一、双极型晶体管
In recent years, remarkable progress has been made in the so-called power electronics technology using power conversion and control of semiconductor devices, etc. On the background, there are social needs for energy saving and small-sized reduction of various devices. On the other hand, power semiconductors The function of components, performance greatly improved to make it possible to achieve. Power semiconductor devices for motor drive have been mainly power transistors and conventional thyristors, however, MOS field effect transistors and turn-off thyristors (GTOs) have been put into practical use recently, and their applications are rapidly expanding. Here for the status of these power semiconductor components and future trends to make an overview of the first, bipolar transistor