Power Semiconductor Switch 1

Power Semiconductor Switch

분류 방식

1) 제어 가능성

 (1) Uncontrollable Device

 The turn-on and turn-off of the switch are determined by the conditions of the external voltage and current applied to the switch.

  Ex.) Diode

 

 (2) Controlled Turn ON,  Uncontrolled Turn OFF Device

  Under certain conditions, the switch is turned on by a control signal, but the turn-off is only done by the voltage and current conditions of the external circuit.

   Ex.) SCR Thyristor

 

 (3) Controllable Device

  A device that is turned on and off by the control signal of the switch regardless of the conditions of the external circuit containing the switch.

   Ex.) GTO Thyristor, MOSFET, BJT, IGCT, IGBT

2) 동작 방향성

 (1) 전압 저지

  단방향 (Unipolar Voltage blocking Device)

  A device that can withstand a voltage of unidirectional polarity applied in the off state.

Unipolar Voltage blocking Device

 

  양방향 (Bidirectional Voltage blocking Device)

  A device that can withstand a voltage of both polarities applied in the off state.

Bidirectional Voltage blocking Device

 (2) 전류 허용

  단방향 (Unidirectional Current flow Device)

   A device that can only flow current in one direction when turned on

      Ex.) Diode, SCE Thyristor, GTO Thyristor, IGCT, BJT, MOSFET

Unidirectional Current flow Device

 

  양방향 (Bidirectional Current flow Device)

   A device that can conduct current in both directions when turned on

   Ex.) MOSFET, Triac, 역도통 Thyristor

Reference

Power Electronics, 노의철, 정규범, 최남섭

원리로 이해하는 전력전자공학, 원충연, 김영렬, 이택기, 류홍제, 정용채