Q5) The schematic circuit in PLECS for a single-phase rectifier is shown below, Q5) The schematic circuit in PLECS for a single-phase rectifier is shown below, Probe VC, puses Thyristor Crout Pulse Generator Probe Scope Thy Orso v Joad O V: 1 R: 1 The output voltage across R is depicted in 0.5 0.0- b) 0.2- 0.0 d) B
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- What is CEMF?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.Q.1 A single-phase diode bridge rectifier is connected to a grid with rms voltage V, 230V at 50 Hz. Assume that the load is highly inductive, so it could be represented by a constant dc current, Id = 10A. a) Sketch the load voltage and find the average voltage of the load? b) Sketch the source current (grid. AC side) and find the rms value of the source current? c) Determine the fundamental source current and the first three harmonics? Assume Ish_rms ³ 0.91a/h for odd hand 0 otherwise?
- Draw the circuit diagram of a single phase full-wave uncontrolledrectifier with R-load. Describe its principle of operation. Draw thewaveforms of: input voltage, voltage across the load, current throughthe diodes and their voltage. Write the expressions for: the averageoutput voltage Vd, the maximum reverse voltage across the diode and thestandard transformer power. Describe what the difference will be if acapacitor is added in parallel with the load at the output.A schematic design of a full-wave bridge type power supply is given below. Provide the appropriate values for the inductors, diodes, capacitor and resistors, such that the output DC voltage is 6.2 V and the max. output power for the load resistance is 20 mW (percentage error for output voltage and output power is 2%). AC voltage source: Amplitude=311.13, Freq=60, DC offset= 0. For the rectifier part, choose diodes with an appropriate PIV rating. Show all the formulas and computations involved in acquiring the values for the inductors, diodes, capacitor and resistors. In choosing your Zener diode, consider the output voltage and the output current. Note that the output current should be the minimum Zener current. For the value of the series resistor RS, choose a lower value for less ripple but always consider the required output voltage. The ripple voltage peak-to-peak value should be less than or equal to 1% of the required output voltage. Use the formula below for choosing the value…Consider the full-wave rectifier circuit shown below, where• vS(t) is a sinusoidal signal with a peak value (Vs = 5 V).• Diodes are modelled using constant voltage model with VDO = 0.7 V• The ac line voltage has an rms value of 120 V and a frequency (f) = 60 Hza) Calculate the transformer turns ratio. b) Plot in the same graph signal vS(t) and the output signal vO(t) versus time (t) (show all details including amplitudes, time instances, etc.) c) Calculate the rms value of the output signal vO(t). (hint: sin2(x) = 0.5(1- cos(2x))) d) If a capacitor C=3.58 F is connected across R = 10 k, repeat (b) in a new graph
- Consider a peak rectifier ted by a 50 Hz sinusoid having a peak value Vp-100 V. Let the load resistance R 10 kohm. The value of the capacitance C that will result in a peak to peak ripple of 3 V is: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 discontinuousplease solve parts d and e Q.1 A single-phase diode bridge rectifier is connected to a grid with rms voltage V, 230V at 50 Hz. Assume that the load is highly inductive, so it could be represented by a constant dc current, Id = 10A. a) Sketch the load voltage and find the average voltage of the load? b) Sketch the source current (grid. AC side) and find the rms value of the source current? c) Determine the fundamental source current and the first three harmonics? Assume Ish_rms ³ 0.91a/h for odd hand 0 otherwise? d) Determine the input power (active)? e) Determine the power factor?
- For the Zener regulated power supply a shown, the rms value of vI is 15V, the operating frequency is 60Hz, R =100Ω, C =1000μF, the on voltage of diodes D1 and D2 is 0.75V, and the Zener voltage of diode D3 is 15V.(a)What type of rectifier is used in this power supply circuit?(b) What is the dc voltage at V1? (c) What is the dc output voltage VO?(d)What is the magnitude of the ripple voltage at V1? (e) What is the minimum PIV rating for the rectifier diodes? (f) Draw a new version of the circuit that will produce an output voltage of−15 V.The secondary input voltage to a single phase diode bridge rectifier is 50V, 50Hz, and the load can be replaced by a resistance of value 20ohms (a) Sketch a well labelled circuit of the converter described above. (b) Sketch the waveforms for the input voltage, output voltage, output current, and output current (c) Derive an equation for average output voltage and calculate for output dc voltage (d) Calculate the ripple factor of the output voltage (e) Transformer utilization factor (h) How can the ripple be improved) Determine the reading obtained withaDC voltmeter at RB when the switch is set at point B. b) Determine the reading at thesame RBusing ½ wave and Full wave rectifier AC meter respectively when the switch is set at point A. Given that Ifs = 100-µA and set at 10-V dc or rms range.