Give reason(s) for the followings: a. Normally a transformer is found in the input supply of a rectifier. b. The use of center tapped full wave rectifier. c. It is preferable to apply a train of pulses instead of continuous signal on the gate of a thyristor. d. The study of harmonics of rectifier input current. e. The efficiency of any power electronics converter is not 100%. f. IGBT or MOSFET are normally used in digitally controlled power electronics converters. g. In voltage control, the use of semiconductor control instead of variable resistance control. h. It is not usual to the use of thyristors in de/ac converters.
Give reason(s) for the followings: a. Normally a transformer is found in the input supply of a rectifier. b. The use of center tapped full wave rectifier. c. It is preferable to apply a train of pulses instead of continuous signal on the gate of a thyristor. d. The study of harmonics of rectifier input current. e. The efficiency of any power electronics converter is not 100%. f. IGBT or MOSFET are normally used in digitally controlled power electronics converters. g. In voltage control, the use of semiconductor control instead of variable resistance control. h. It is not usual to the use of thyristors in de/ac converters.
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Author:Robert L. Boylestad
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Chapter1: Introduction
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Transcribed Image Text:Give reason(s) for the followings:
a. Normally a transformer is found in the input supply of a rectifier.
b. The use of center tapped full wave rectifier.
c. It is preferable to apply a train of pulses instead of continuous signal on the gate of a
thyristor.
d. The study of harmonics of rectifier input current.
e. The efficiency of any power electronics converter is not 100%.
f. IGBT or MOSFET are normally used in digitally controlled power electronics
converters.
g. In voltage control, the use of semiconductor control instead of variable resistance
control.
h. It is not usual to the use of thyristors in de/ac converters.
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