1- A single-phase half-wave uncontrolled rectifier has an RL load with R=12 and L=20 mH. The ac source is 120 V rms and 60 Hz. Determine the rms output current. 2- A single-phase fully-controlled bridge circuit with R-L load (continuous current) used for obtaining a regulated d.c. output voltage. The RMS value of the a.c. input voltage is 230 V, and the firing angle is so that the average load-current is 4 A. calculate the load average current when freewheeling diode is used. 3- A three-phase half-wave uncontrolled rectifier is supplied by a 480-V rms line-to-line 60-Hz source. The RL load is a 100- resistor in series-with a 15-mH inductor. Determine the average output voltage

1- A single-phase half-wave uncontrolled rectifier has an RL load with R=12 and L=20 mH. The ac source is 120 V rms and 60 Hz. Determine the rms output current. 2- A single-phase fully-controlled bridge circuit with R-L load (continuous current) used for obtaining a regulated d.c. output voltage. The RMS value of the a.c. input voltage is 230 V, and the firing angle is so that the average load-current is 4 A. calculate the load average current when freewheeling diode is used. 3- A three-phase half-wave uncontrolled rectifier is supplied by a 480-V rms line-to-line 60-Hz source. The RL load is a 100- resistor in series-with a 15-mH inductor. Determine the average output voltage

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 single-phase fully controlled, full-wave, bridge rectifier has a source of 220 V rms at 50 Hz, and is feeding a load 15 Ω and 10 mH. The firing angle α = 60˚ and the current extinction angle β =250˚; Determine (a) Average load voltage and current (b) RMS load voltage and current (c) AC and DC powers absorbed by the load (d) Determine the efficiency of the converter (e) Sketch the appropriate load voltage and load current waveforms (f) Determine whether the current is continuous or discontinuous
A single-phase fully controlled, full-wave, bridge rectifier has a source of 230 V rms at 50 Hz, and is feeding a load R = 25 and L = 10 mH. The firing angle α = 45˚ and the current extinction angle β =230˚. It is required to: (a) Sketch the appropriate load voltage and load current waveforms. (b) Determine whether the current is continuous or discontinuous. (d) Determine the average load voltage and current. (e) Determine the rms load voltage and current. (f) Determine the a.c. and d.c powers absorbed by the load. (g) Determine the efficiency of the converter.
Suppose a power supply is energized by an AC source of 119 V RMS. The transformer step-down ratio is 8:1, it uses a full-wave bridge rectifier circuit with silicon diodes, and the filter is nothing but a single electrolytic capacitor. Calculate the unloaded DC output voltage for this supply (assume 0.7 volts drop across each diode). Also, write an equation solving for DC output voltage (Vout), given all these parameters.
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27. For the given Full-Wave Bridge Rectifier circuit below with capacitor filter, it produces a ripple voltage waveform shown. If V2 is given as 14 volts and V1 is given as 8 volts, compute for the ripple peak-to-peak voltage, dc voltage and ripple factor. If the load resistance has a value of 9 kiloohms, how much should be the dc current?. compute for the peak output voltage at the output of the rectifier. If silicon diodes are used, what is the value of the secondary peak voltage?. If N1 is given as 1300 and N2 is given as 600, compute for the primary peak voltage. 4. The value of dc current (Idc) in amperes is ? 5. The value of the output peak voltage (Vpout) in volts is ? 6. The value of peak secondary voltage (Vpsec) in volts is ? 7. The value of primary peak voltage is (Vppri) in volts is ?
27. For the given Full-Wave Bridge Rectifier circuit below with capacitor filter, it produces a ripple voltage waveform shown. If V2 is given as 14 volts and V1 is given as 8 volts, compute for the ripple peak-to-peak voltage, dc voltage and ripple factor. If the load resistance has a value of 9 kiloohms, how much should be the dc current?. compute for the peak output voltage at the output of the rectifier. If silicon diodes are used, what is the value of the secondary peak voltage?. If N1 is given as 1300 and N2 is given as 600, compute for the primary peak voltage. 1. The value of the ripple peak-to-peak voltage (Vrpp) in volts is ? 2. The value of the dc voltage (Vdc) in volts is ? 3. The value of the ripple factor is ?
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In the figure, SCR semiconductor switched rectifier to a 220 Vrms ac source at 50 Hz, at load Vdc = 100 V, R = 8 Ω and has an inductor large enough to supply continuous current. (a) Trigger angle α = 25o determine the total power absorbed by the load. (b) If the inductance value is 30 mH, the change value from the top Determine.
Determine the peak output voltage for the bridge rectifier in this figure. Assuming the practical model, The transformer is specified to have a 12 V rms secondary voltage for the standard 110 V across the primary. (2nd Approximation)
For the given Full-Wave Bridge Rectifier circuit below with capacitor filter, it produces a ripple voltage waveform shown. If V2 is given as 14 volts and V1 is given as 6 volts, compute for the ripple peak-to-peak voltage, dc voltage and ripple factor. If the load resistance has a value of 5 kiloohms, how much should be the dc current?. compute for the peak output voltage at the output of the rectifier. If silicon diodes are used, what is the value of the secondary peak voltage?. If N1 is given as 1400 and N2 is given as 500, compute for the primary peak voltage.
4- What is the effect of adding capacitor in parallel to the load at the rectifier output? Note: Please do not handwriting and write the answer briefly