A single-phase fully controlled, full-wave, bridge rectifier has a source of 210 V rms at 50 Hz, and is feeding a load 10 Q and 25 mH. The firing angle a = 60° and the current extinction angle B =255°; 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 210 V rms at 50 Hz, and is feeding a load 10 Q and 25 mH. The firing angle a = 60° and the current extinction angle B =255°; 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

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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Three Phase Full-Wave Fully Controlled Rectifier when highly Inductive load is connected: i. Draw graphs when α = 30, 60, 90, 120, 150 degrees. ii. Derive the output average voltage. iii. Derive the output rms voltage.
E.) The voltage on Figure Q1 is connected across a 0.15 2 resistive load. Calculate the power dissipated in this resistor. F.) Sketch the circuit for an ac supply input to a full-wave diode rectifier with a resistive load and no smoothing capacitor. G.) For the circuit in Question (F) calculate the average and rms voltages across the resistive load for an rms ac supply voltage of 115 V assuming no diode voltage drop.
8.What is the effect of increasing the value of the capacitance In single phase half wave with RL 9. Give an example of a practical case of half-wave uncontrolled rectifier with RL load connected in parallel with C. 10. Propose another circuit(s) to convert AC signal to DC signal.
A single phase, fully controlled bridge rectifier supplies a series connected resistor- inductor load (R = 20, L = 0.02H) from 220V, 50HZ AC supply. The triggering angle of the thyristors is 60°. (Assume the circuit is ideal.) a. Sketch the circuit. b. Develop the load current expression and check the continuity of the load current. c. Sketch the load voltage and load current waveforms. d. Calculate the mean values of the load voltage and load current. e. Sketch the inductor voltage and calculate its mean value. f. Calculate the FF (form factor) and RF (ripple factor) of the load voltage.
Solve each one with steps.
B. 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 a= 45° and the current extinction angle B-230". It is required to: (a) Sketch the appropriate load voltage and load current waveforms. (b) Determine whether the current is continuous or discontinuous. (c) Determine the average load voltage and current. (d) Determine the rms load voltage and current. (e) Determine the efficiency of the converter
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Question 1 a) Compare the holding current with the latching in SCR. b) A 400 V/50 Hz three-phase system is loaded with an ideal three-phase diode rectifier having a completely smooth output current of 50 A. An ideal three-phase thyristor converter is connected in parallel with the diode rectifier. The output current of the thyristor converter is also 50 A and completely smooth, but the output power of the thyristor converter is zero. i. Draw the waveforms of the input currents to the two converters and the the sum of the two currents. ii. Calculate the power factor for the total load. c) The shown converter in Figure 1 operates in continuous conduction mode. Assume the components are ideal. i, (1) in (t) v ic (t) Vo (t) iL (t) +v (t) - is (1) "; (1) Figure 1 i. Sketch of i (t) and VL(t) for one switching period Ts. ii. Determine the DC voltage gain Vo/Vg as function of duty cycle, D.
Question 3) An ohmic loaded half-wave controlled rectifier given in the figure below feeds a 25 Q load and the peak value of the source voltage is 350V and its frequency is 50 Hz. Accordingly, find the following desired circuit parameters: a) Effective (rms) voltage of the source, b) the peak current of the load, c) Average stress of the load, d) Average current of the load, e) The effective (rms) voltage of the load, f) Effective (rms) current of the load, g) Power of the load K R
iii. For fully controlled single phase bridge rectifier with inductive load (load current is continuous) ,supply voltage 220 V(RMS) and a=30° .The mean value of output voltage is : (a) 150.32V (b) 171.52V (c) 120.98V
1. A single-phase semi-controlled rectifier, is supplied from 230 V, 50 Hz source. The load consists of R = 102, E = 100 V and a large inductance so as to render the load current level. For a firing delay angle of 30°, Draw and calculate average output voltage, Average output current and also find the range of firing angle control. Va