Electrical Engineering: Power Electronics MCQ

The enhancement type MOSFET in the circuit below operates according to the square law. μ n C ox = 100 μA/V 2 , the threshold voltage (V T ) is 500 mV. Ignore channel length modulation. The output voltage V out is

In the circuit below, the operational amplifier is ideal. If V₁ = 10 mV and V₂ = 50 mV, the output voltage (V_out ) is

The voltage across and the current through a load are expressed as follows

The average power in watts (round off to one decimal place) consumed by the load is _____________.

The output voltage of a single-phase full bridge voltage source inverter is controlled by unipolar PWM with one pulse per half cycle. For the fundamental rms component of output voltage to be 75% of DC voltage, the required pulse width in degrees (round off up to one decimal place) is ________.

Given Vgs is the gate-source voltage, Vds is the drain voltage, and Vth is threshold voltage of an enhancement type NMOS transistor, the conditions for transistor to be biased in saturation are