As compared to power MOSFET, a BJT has

Higher switching losses but lower conduction losses

Higher switching losses and higher conduction losses

Lower switching losses and Lower conduction losses

Lower switching losses but higher conduction losses

As compared to power MOSFET, a BJT has Correct Answer Higher switching losses but lower conduction losses

Concept:

BJT	MOSFET
Bipolar device	Unipolar device
Low input impedance	High input impedance
Current controlled device	Voltage-controlled device
Low on-state voltage drop and low conduction loss	High on-state voltage drop and higher conduction loss
Higher power handling levels and hence preferred in high power applications	Lower power handling levels and hence preferred in low power applications
Secondary breakdown occurs and high switching losses	Free from the secondary breakdown and lower switching losses
Negative temperature coefficient	Positive temperature coefficient
Not advisable for parallel operation	advisable for parallel operation
Lower operating frequency(10kHz)	higher operating frequency(100kHz)
On state in the saturation region	On state in the ohmic region
Controlled turn on and turn off operation of the device	Controlled turn on and turn off operation of the device
Turn on and turn off time depend on junction capacitance	Smaller turn off time
Continuous Controlled signal requirement	Continuous Controlled signal requirement

Feb 20, 2025

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