【摘要】 介绍了采用绝缘门极双极性晶体管（ＩＯＢＴ）作开关元件的逆变式点焊机的工作原理及特点。研究表明：ＩＧＢＴ逆变式点焊机结构及电路简单，可靠性高，功率因素及效率高，有很大发展前途。更多还原

【Abstract】 An IGBT inverter for spot welding is introduced Its working principe and design feature are discussed. As resuIt of the research, it is shown that the developped IGBT inverter spot welding processes the following advantages: its structure and electric circuit are simpler; the working reliability and efficiency are higher. It will have a wide prospect in application to spot welding.更多还原