Transcription of 電力電子元件簡介 - ee.nthu.edu.tw
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電力電子元件簡介 - ee.nthu.edu.tw
Page 1 Introduction to Power Electronic DevicesC. M. LiawDepartment of Electrical EngineeringNational Tsing Hua UniversityHsinchu, Taiwan, ROC. ( Power diode) ( SCR)SCRP ower diodeFiring circuitPLoadLoadDiode: Uncontrolled turn-on andturn-off AC sourceAC source SCR: Controlled turn-on and uncontrolled turn-off Page 2 ( )Voltage/current ratingsSwitching frequency (speed)Switching timeOn-state resistance (or on-state voltage/current) (A) (Thyristor) (Silicon ControlledRectifier, SCR) : Controlled turn-on, uncontrolled turn-off(B) (Bidirectional Thyristor TRIAC) (E) (Power BJT) : Current control device (H) (Power MOSFET) : Voltage control device(F) IGBT (Insulated Gate Bipolar Transistor):-Combines the conduction characteristic of BJT and the control characteristic of the MOSFET(C) GTO (Gate Turn-off Thysistor)(G) MOS (MOS -controlled Thyristor, MCT).
Page 2 常用功率半導體元件之額定(表二) Voltage/current ratings Switching frequency (speed) Switching time On-state resistance (or on-state voltage/current)
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