【摘要】 概述了桥式脉冲宽度调制（ＰＷＭ）功率源的工作原理，以及开关元件ＩＧＢＴ的驱动、过压、过流保护等问题。应用ＩＧＢＴ的ＰＷＭ功率源，输出电压达１６０Ｖ，脉冲电流１６０Ａ，峰值功率达２５ｋＷ，重量小于１０ｋｇ。更多还原

【Abstract】 The operating principle of a bridge type Pulse Width Modulation(PWM) power source,driving of switch element IGBT,overvoltage and overcurrent are briefly described in the paper.When IGBT is used in PWM power source,its output voltage is as high as 160V,pulse current 160A and peak power 25kW.The weight of the unit is less than 10kg.更多还原