Please see an attachment for details Image transcription textQ4. A buck chopper is adopted to control a separately excited D.C. motor with the following circuit parameters.Armature resistance = 0.060 Voltage constant, Ka0 = 0.4V/rpm The chopper is fed by a 660 V D.C. source anddelivers 85kW at the output. If the average armature current is 230A, evaluate i. the duty cycle of … Show more… Show more Engineering & Technology Electrical Engineering EEE 4117
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