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Un-Answered Questions { Electronics Communications }

What is forced commutation?

1106


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

1179


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

1080


what are the applications of integrators?

1071


What are the advantages of load commutated chopper?

1388


What is meant by dc chopper?

1057


what is an excitation table?

1199


What is the main purpose of power electronics?

1049


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

1269


Power mosfet is a voltage controlled device. Why?

1121


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

1310


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

1043


What is load commutation?

1054


What is meant by high frequency carrier gating?

1246


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

1131