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Un-Answered Questions { Electronics Communications }

What is forced commutation?

1145


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

1245


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

1132


what are the applications of integrators?

1113


What are the advantages of load commutated chopper?

1430


What is meant by dc chopper?

1108


what is an excitation table?

1279


What is the main purpose of power electronics?

1084


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

1311


Power mosfet is a voltage controlled device. Why?

1179


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

1360


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

1091


What is load commutation?

1111


What is meant by high frequency carrier gating?

1295


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

1167