each incorrect answer. If you mark neither "true" nor "false", your points will not bereduced).a) The device which performance as DC-DC conversion can be used for DC and AC motoras a drive.b) In a VSI, the internal impedance of the DC source is negligible.c) In three-phase inverter with 180° conduction, three switches are conducting at any time.d) BJT and MOSFET are both can be used in a chopper circuit.\e) The inverter device can be classified as VSI, CSI and power inverter.

(a) The device which performance as DC-DC conversion can be used for DC and AC motor as a drive. The…

Answered: each incorrect answer. If you mark…

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...

See similar textbooks

Similar questions

iv. For six-phase half-wave rectifier circuit, the preferred circuit from the point of harmonics reduction in the supply currents is: (a) Simple six-phase half-wave circuit. (b)Double-star six-phase half-wave circuit. (c) Six-phase fork connection circuit. v. The DC supply of single phase bridge inverter is 350V. For quasi-square wave output voltage with a 70 percent ON time and frequency is 50HZ, the RMS value of output voltage is: (a) 292.8V (b) 220.5V (c) 250.6V
8-The waveform of output voltage of half-controlled three phase bridge rectifier in each cycle contains: Two- pulse six- pulse three- pulse 9-The DC supply voltage of single phase bridge inverter is 300V. For quasi-square wave output voltage with a 60 percent ON time, the RMS value of output voltage is: 232.37V 220.5V 270.9V 10-For three phase bridge inverter with 120° conduction and resistive star-connected load, the waveforms of: (a) The load current and line voltage are quasi-square. (b) The load current is quasi-square and line voltage is a six- step. (c) The load current is six- step and line voltage is quasi-square. 9.
Q2 (a) Figure Q2(a) shows a single-phase full-bridge square-wave voltage source inverter has resistor (R) and inductor (L) load of 10 Q and 5 mH respectively connected in series. The inverter output frequency is 50 Hz. The transistor switching scheme is complementary bipolar. (i) Draw the output voltage and current waveforms. (ii) Obtain an expression of the rms output voltage at the fundamental frequency. (iii) If the fundamental AC output voltage is 220 V, find the required DC input voltage for the inverter. (iv) Find the instantaneos load current by considering until the 9th harmonics number. (v) Calculate the total harmonics distortion (THD) of the load current. Use only the first three odd harmonics. (vi) Sketch the harmonics spectrum for output current. (vii) Show the displacement angle a, if 5th harmonic is to be eliminated.
3. A single-phase to single-phase cycloconverter "bridge type" with input voltage and frequency 150V and 50Hz. respectively. The output frequency is 10Hz and the firing angle equal to 45°. The load is resistance with the value of 1002 in series with reactive inductance of the value of 20mH. Assume the extinction angle equal 180°. a. Draw the waveforms output voltage, output current, source current, the thyristors currents (iT, IT, IT and in) b. Calculate the rms of output voltage. c. The rms current of each thyristor. d. The input power factor
I need a diagram of a circuit by the transform and rectification block, using the bridge rectifier circuit (KBJ1008). It can be a source of any value. You don't need to do any calculations, just a drawing of how this circuit will look, please.
4) Choppers is a a. AC - DC converters b. AC - AC converters c. DC - AC converters d. DC - DC converters 5) A single phase dc ac converter is also known as a. Rectifier b. Inverter c. Chopper d. Regulator
Question 2 a) Briefly explain the de chopper, inverter, controlled rectifier and ac voltage controller. b) A buck-boost regulator as shown in Figure 2 has an input voltage, Vs = 12 V. The duty cycle, k = 0.35 and the switching frequency is 30 kHz. It also has an inductance, L = 200 µH, filter capacitance, C = 440 µF. The average load current, Ia 1.25 A. Determine the: i. average output voltage, Va, ii. peak-to-peak output ripple voltage, AVc, iii. peak-to-peak output ripple current of inductor, AI, iv. peak current of the transistor, Ip, V. critical values of L and C, and vi. critical values of L and C if Vs is increased to 14 V. Estimate the change in percentage for the critical values of L and C. is Vs C Load Vo, Vs VC i, Ia Figure 2
(i) With necessary sketch, write the load current flow path of a single phase semi converter during freewheeling period. Assume the load have resistance and high inductance value and the semi converter requires multiple gate pulse for triggering. (i) Draw the circuit diagram of the single phase half wave controlled rectifier (RL load) with center-tapped transformer and compare its performance with uncontrolled rectifier operation.
In a single phase VSI bridge Inverter, the load current is Io =200 sin(wt-45°)mA. The d.c. supply voltage is 220 V. What is the power drawn from the supply ?
6-If the collector resistance is shorted,the ac output voltage will a-Decrease. b-Increase. c-Remain the same. 9 d-Equal zero. 7-If input impedance of the second stage decreases, the voltage gain of the first stage will a-Decrease. b-Increase. c-Remain the same. d-Equal zero. 8-If the load resistance of second stage opens, the voltage gain of the first stage will a-Decrease. b-Increase. c-Remain the same. d-Equal zero. 9-The feedback resistor a-Increases voltage gain. b-Reduces distortion. c-Increases collector resistance. d-Decreases input impedance. 10-when the emitter resistance Rp doubles the ac emitter resistance a-Increases. b-decreases. c-Remains the same. d-Cannot be determined. 11-To reduce the distortion in a CE amplifier, reduce the a-DC emitter current. b-Base-emitter voltage. c-Collector current. d-AC base voltage. 12-The output voltage of a CE amplifier is a-Amplified. b-Inverted. c-180° out of phase with the input. d-All of the above.
4.B. Write, if the shown statements are true or false, (Hint: you will lose points for each incorrect answer. If you mark neither "true" nor "false", your points will not be reduced): a) The device which performance as DC-AC conversion can be used for DC and AC motor as a drive. b) MOSFET switches are suitable for high power application. c) In alternative current circuits, SCR turns off as the current tends to change its polarity (natural commutation). F = d
A HVDC link is operating with 175 KV AC line voltage at the rectifier. When the DC current is 1100 Amps, the rectifier delay angle is 100 and inverter extinction angle is 200. The resistance of the line is 23 ohms and the commutating reactances of the rectifier and inverter are 22 ohms and 21 ohms. Calculate the DC voltages at the rectifier and inverter terminals and the AC line voltage at the inverter.

SEE MORE QUESTIONS

Recommended textbooks for you

Introductory Circuit Analysis (13th Edition)

Electrical Engineering

ISBN:

9780133923605

Author:

Robert L. Boylestad

Publisher:

PEARSON

Delmar's Standard Textbook Of Electricity

Electrical Engineering

ISBN:

9781337900348

Author:

Stephen L. Herman

Publisher:

Cengage Learning

Programmable Logic Controllers

Electrical Engineering

ISBN:

9780073373843

Author:

Frank D. Petruzella

Publisher:

McGraw-Hill Education

Introductory Circuit Analysis (13th Edition)

Electrical Engineering

ISBN:

9780133923605

Author:

Robert L. Boylestad

Publisher:

PEARSON

Delmar's Standard Textbook Of Electricity

Electrical Engineering

ISBN:

9781337900348

Author:

Stephen L. Herman

Publisher:

Cengage Learning

Programmable Logic Controllers

Electrical Engineering

ISBN:

9780073373843

Author:

Frank D. Petruzella

Publisher:

McGraw-Hill Education

Fundamentals of Electric Circuits

Electrical Engineering

ISBN:

9780078028229

Author:

Charles K Alexander, Matthew Sadiku

Publisher:

McGraw-Hill Education

Electric Circuits. (11th Edition)

Electrical Engineering

ISBN:

9780134746968

Author:

James W. Nilsson, Susan Riedel

Publisher:

PEARSON

Engineering Electromagnetics

Electrical Engineering

ISBN:

9780078028151

Author:

Hayt, William H. (william Hart), Jr, BUCK, John A.

Publisher:

Mcgraw-hill Education,

SEE MORE TEXTBOOKS