3. A half-wave rectifier with a 200 2 load resistor operates from a 120 Vrms 60 Hz household supply current through a 6-to-1 step-down transformer. It uses a silicon diode that can be modelled as having a Vf = 0.9 V drop for any current. vs(t) VL (t) RL (a) What is the peak voltage, us,peak, of the secondary? What is the peak voltage, UL,peak of the rectified output? (b) For what fraction of the cycle (in percentage) does the diode conduct? (c) What is the average output voltage, VL?
3. A half-wave rectifier with a 200 2 load resistor operates from a 120 Vrms 60 Hz household supply current through a 6-to-1 step-down transformer. It uses a silicon diode that can be modelled as having a Vf = 0.9 V drop for any current. vs(t) VL (t) RL (a) What is the peak voltage, us,peak, of the secondary? What is the peak voltage, UL,peak of the rectified output? (b) For what fraction of the cycle (in percentage) does the diode conduct? (c) What is the average output voltage, VL?
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Transcribed Image Text:3. A half-wave rectifier with a 200 load resistor operates from a 120 Vrms 60 Hz
household supply current through a 6-to-1 step-down transformer. It uses a
silicon diode that can be modelled as having a Vƒ = 0.9 V drop for
any current.
>
vs(t)
VL (t)
www
RL
(a) What is the peak voltage, US,peak, of the secondary? What is the peak
voltage, UL,peak of the rectified output?
(b) For what fraction of the cycle (in percentage) does the diode conduct?
(c) What is the average output voltage, V₁?
(d) What is the average output current, IL?
(e) What size of capacitor should you add across the output to provide a
peak-to-peak ripple voltage, Vr, of 10% of the peak output?
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