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8- Complementary chopper with 100 W power per load, 200V do source and 1 uF commutation capacitor. Determine the turning off time in millisecond.* toff-4.25 micro second O toff-0.278 ms O toff=30.2 micro second

8- Complementary chopper with 100 W power per load, 200V do source and 1 uF commutation capacitor. Determine the turning off time in millisecond.* toff-4.25 micro second O toff-0.278 ms O toff=30.2 micro second

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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8- Complementary chopper with 100 W power per load, 200V dc source and 1 uF commutation capacitor. Determine the turning off time in millisecond.* toff=4.25 micro second toff=0.278 ms toff=30.2 micro second 9- Thyrisotr switch with turning-off time of 40 micro second is operated in a self commutation circuit having 100 microfarad capacitance. What's the required inductance. * Ls =1.87 micro henry Ls =1.62 micro henry O Ls =3.87 micro henry 10- Simple SCR firing circuit is energized from 220V/50 Hz source. The gate current ranging between 0.15 A to 1.2 A. while the minimum gate voltage is 3.5 V. if the potentiometer is adjusted at 35% of it's maximum value what the firing angle be in dg? * alpha = 20.47 dg alpha = 45.45 dg alpha = 10.56 dg
Transcribed Image Text:8- Complementary chopper with 100 W power per load, 200V dc source and 1 uF commutation capacitor. Determine the turning off time in millisecond.* toff=4.25 micro second toff=0.278 ms toff=30.2 micro second 9- Thyrisotr switch with turning-off time of 40 micro second is operated in a self commutation circuit having 100 microfarad capacitance. What's the required inductance. * Ls =1.87 micro henry Ls =1.62 micro henry O Ls =3.87 micro henry 10- Simple SCR firing circuit is energized from 220V/50 Hz source. The gate current ranging between 0.15 A to 1.2 A. while the minimum gate voltage is 3.5 V. if the potentiometer is adjusted at 35% of it's maximum value what the firing angle be in dg? * alpha = 20.47 dg alpha = 45.45 dg alpha = 10.56 dg
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