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Un-Answered Questions { Electronics Communications }

What is forced commutation?

1096


Describe the principle of step-up chopper. Derive an expression for the average output voltage in terms of input dc voltage & duty cycle?

1172


Explain why is the diffusion technique of formation of resistor most widely used?

1077


what are the applications of integrators?

1062


What are the advantages of load commutated chopper?

1383


What is meant by dc chopper?

1053


what is an excitation table?

1196


What is the main purpose of power electronics?

1047


What are the main components used for isolating the power circuits, power semiconductor from the low-power circuit?

1266


Power mosfet is a voltage controlled device. Why?

1119


Why is sio2 layer formed over the entire surface in a monolithic ic?

1305


Explain the working of current commutated chopper with aid of circuit diagram and necessary wave forms. Derive an expression for its output voltage?

1032


What is load commutation?

1044


What is meant by high frequency carrier gating?

1244


What are the losses that occur in a thyristor during working conditions?

1123