Q3. AA single-phase fully controlled bridge converter supplies power to ahighly inductive load with resistance R-10 2 from a 240 V rms, 50 Hz ACsource.a) Draw the circuit diagram of the converter.b) Find the firing angle((a) so that the average power supplied to the load isPav=1200 W.7Q4. A For the single-phase half wave diode rectifier circuit with resistive load.Prove that the load voltage can be expressed by Fourier series.

Answered: Q3. A A single-phase fully controlled…

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter59: Motor Startup And Troubleshooting Basics

Section: Chapter Questions

Problem 12SQ: How is a solid-state diode tested? Explain.

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What is the difference between a diode and rectifier?
For the circuit shown below, compute the maximum current through each resistor when terminal A is a) positive and, b) negative. Assume the diodes are ideal. (Will we convert to the RMS value to it's actual value?)
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Consider the half-wave rectifier shown in the figure below. Let vs be a sinusoidal with 10V peak amplitude with frequency of 60Hz and let R = 1000 ohms. Use the contant voltage-drop diode model with VD = 0.7 V.
Determine the voltage across the diode, the output voltage, and the current in the resistor in the figure below. Plot these waveforms with proper ac cycle phase alignment. 1SR154-400 is a silicon rectifier 1 ampere diode. Indicate the peak values as per calculation.
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Q4/: A full-wave bridge rectifier at (2:3) transformer with a [77 sin(2n x 100 x 10³t)] rms input signal has a load resistor of 3.3k2. Draw the rectifier circuit and: 1. Sketch and determine effective waveform voltage (VL-P) at the load. 2. Determine the required PIV rating of the diode. 3. What input frequency and output frequency ? 4. What is the de voltage available at the load? 5. Explain who could filtering output signal. 6. Draw circuit that give opposite out waveform. 7. Why connect circuit in this form.
Two identical Schottky diodes are connected in series, one in the forward and the other in reverse direction, see figure. Assume the reverse saturation current, IS, of each diode to be known. Derive he current-voltage curve I(V) of this circuit. Plot it with the ratio I / IS on the y-axis and V / Vth on the x-axis. Make sure to cover a broad range of voltages, say, from –10 Vth to 10 Vth.
S-2) a) On the bridge type full wave rectifier circuit given in the figure Plot the current paths for each of the +/- alternans. b) The waveform of the Vç output voltage is given in the graphs on the side. Draw it in the blank and calculate the peak value and indicate it in the graph. c) Calculate the effective value of the output voltage. (Vç (eff) =… ..?). Note: Diodes are not ideal. VD = 0.7V.
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One component that does not need to be installed in the correct orientation is a: a. Resistorb. Diodec. Voltage regulatord.

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