What is switching frequency in a power transistor?
Editorial Team - everything PE
Feb 17, 2022
Switching frequency is defined as the rate at which the power transistor is turned ON and OFF.
Fsw: Switching Frequency
Ton: On-time of the power transistor in ms or µs or ns
Toff: Off time of the power transistor in ms or µs or ns
Ton+Toff =T: It is the switching period of the power transistor in ms or µs or ns
Typically, the switching frequency of power electronic switches can vary from a few kHz to a few MHZ ranges.
Switching frequency of GAN transistor (MHz to GHz) > Silicon MOSFET (MHz) > IGBT (1 KHz to 100 KHz) > GTO (1 KHz)>Thyristors (100 HZ)
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