Q3// Power is supplied to a load resistor R from a three-phase zero-impedane voltages using half-wave bridge circuit of Fig.2. The three diodes may be considered as ideal switches. (a) Sketch the phase current waveform is(oot) in phase-a with respect to the phase voltage Van(t)=Vm sinot. (b) Show that the rms value of the phase current is: Vm la = 0.485- R Hence, calculate la of the phase current, compare with the value for sinusoidal operation. (c) Sketch the load current waveform and specify, by observation, the lowest ripple frequency. 1 DI R D2 ☆ D3 io Fig.2

Q3// Power is supplied to a load resistor R from a three-phase zero-impedane voltages using half-wave bridge circuit of Fig.2. The three diodes may be considered as ideal switches. (a) Sketch the phase current waveform is(oot) in phase-a with respect to the phase voltage Van(t)=Vm sinot. (b) Show that the rms value of the phase current is: Vm la = 0.485- R Hence, calculate la of the phase current, compare with the value for sinusoidal operation. (c) Sketch the load current waveform and specify, by observation, the lowest ripple frequency. 1 DI R D2 ☆ D3 io Fig.2

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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A 1N4748A zener diode has a ZZ of 23 Ω. Taking the data from the datasheet VZ = 22 V with a test current, IZ, of 11.5 mA. What is the voltage across the zener terminals when the current is 6 mA? When the current is 20 mA? Make the representation of the values by means of their curve characteristic.
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Using a positive Clamper with positive biasing voltage Circuit, with an AC voltage of Vi = 20v with a frequency of 60hz, a value of 500n for the Capacitor, a silicon diode, biased voltage voltage of 5 volts and a resistor with the value of 300 ohms. Find the current on the resistor at a simulation of 20ms in mA. Vm 2Vm R V,m Vo -Vm V, Input Waveform Output Waveform Positive Clamper with positive reference V, www
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For a certain 12 V zener diode, a 10 mA change in zener current produces a 0.05 V change in zener voltage. The zener impedance for this current range is O a. 50 Ob. 10 - c.0.1 Ω Od. 10 Q
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For a certain 12 V zener diode, a 10 mA change in zener current produces a 0.05 V change in zener voltage. The zener impedance for this current range is O a. 50 Ob. 10 - c.0.1 Ω Od. 10 Q
QUESTION 3 a. Design such a power supply with an input Voltage ranging from 10V to 15 V, and a limiting Resistor of 4.0 kn. Specifications of the Zener diodes are; Var is 8 V and Rz is 1000. Your task is to obtain regulated output Voltage within the input voltage range. b. With a diagram describe the operation of a clipper that can clip at two independent levels. c. In the circuit below, the values of Rc = 4.7 kN, RE = 3.3 kN, Vs = 4 V and also Vcc = 10 V and B = 100. Prove that the BJT is operating in the active mode. +10 V Re- 4.7 k +4 V R-3.3 kn