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Power Electronic Components IC technology is an emerging technology, which is formed by the intersection of three disciplines of power science, electronics and control theory. It has become an indispensable professional basic course for modern electrical engineering and automation majors. 　　Power electronics technology is applied In the electric power field, electronic technology that uses power electronic devices to transform and control electric energy. Power electronic technology is divided into power electronic device manufacturing technology and converter technology. It is generally believed that the first thyristor developed by General Electric in 1957 was a sign of the birth of power electronics technology.　　 In 1974, w. newell in the United States proposed that power electronics is made up of the intersection of three disciplines: power, electronics,PCBA Manufacturing, and control theory. This view is generally accepted all over the world.

　 Power electronics is a highly applicable subject. Generally speaking, its basic application circuits are: 1. Rectifier stamped printed wiring board :
   Convert alternating current to required direct current
2. DC chopper Microwave radio frequency board:
   Convert direct current to required direct current
3. AC power control circuit and AC frequency conversion circuit:
   Change AC power to required AC power
4. Inverter circuit:
   Convert direct current into required alternating current. Definition of power electronics on Wikipedia: Power electronics is an electronic technology that is applied to the field of electricity and uses power electronic devices to transform and control electrical energy. Power electronic technology is divided into power electronic device manufacturing technology.

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 and converter technology.