500A、1200V光控双向晶闸管的研制

Development of 500A,1200V Light Triggered Triacs

本文具体描述了中心锥形槽状光敏门极结构光控双向晶闸管的结构特点，介绍了该新型结构器件的关键生产工艺，并对器件的触发特性进行了较深入的理论研究，研制成功的直径为４０ｍｍ，电流容量为５００Ａ，耐压为１２００Ｖ的光控双向晶闸管的最小光触发功率小于１５ｍＷ，动态峰值压降小于１．６Ｖ，换向ｄｖ／ｄｔ耐量大于１００Ｖ／μｓ，换向ｄｉ／ｄｔ耐量大于５０Ａ／μｓ．

A 500A, 1200V, 40mm dia. light triggered triac has been developed ,This device has the characteristics of minimum light triggering power of less than 15mW,on-state voltage of less than 1. 6V ,commutating dv/dt capability of more than 100V/μs and commutating di/dt capability of more than 50A/μs.The structure features,theoretical studies on the light trigger characteristic and key manufacturing technologies of the device are presented in this paper.