The uncontrolled electronic switch used in power electronic converter is

The uncontrolled electronic switch used in power electronic converter is (GATE-EE-1998)

A. thyristor

B. bipolar junction transistor

C. diode

D. MOSFET

Explanatory answer:

Thyristor - semi controlled device
BJT and Mosfet -fully controlled device

Diode - uncontrolled device, since its on/off depends on external circuit.we cannot control