A half-wave rectifier circuit has an input voltage of 60V for the entire swing of the input signal from the secondary winding of the transformer. If the load resistance is 902 and a shunt capacitor is connected therein: 1. Draw the circuit 2. Solve the following unknown values. a. The peak voltage Vm b. the average output voltage Vo(ave)
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- What is the difference between a diode and rectifier?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 improvedA number of diodes rated at 1620 V each are to be connected in series in a rectifier circuit with a maximum voltage of 3000V. A de-rating factor of 15% is recommended. The maximum difference in leakage current of the diodes is given as 10mA , and the maximum difference in stored charge is 20µC. Calculate, 1) the number of diodes that must be used, 2) a suitable component value for the static equalization circuit; 3) a suitable component value for the dynamic equalization circuit.
- 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 graphA 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…Design a full-wave bridge type power supply. Design the transformer, filter and regulator section. For the rectifier part, choose diode with appropriate PIV rating. Use standard values for your design. The output dc voltage should be 7.5 V and the Maximum output power be 20 mW. Use the topology below as reference
- 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.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 discontinuousFigure shows an AC source G having an effective voltage of 240 V, 60 Hz is connected to a single-phase full-wave rectifier. The resistance for R is 53 Ω and ripple-to-ripple current is 15%.Determine the DC voltage and DC current across the resistor. Hence, determine the power absorbed by the load. Assuming all diodes are ideal.
- The voltage waveforms shown below are obtained from a three-phase power rectifier used in an ESKOM application.The rectifier output before the inductive filter is denoted by VL and the load voltage after the inductive filter by Vo. Ignore any diode losses and consider a load resistance of 12.7 Ω. Analyse the waveforms and specify / calculate,11) the supply frequency;12) the rectifier pulse number;13) the rectifier average output voltage;14) the average output current;15) the r.m.s. value of the output current;16) the r.m.s. value of the harmonics present in the output current;17) the dc current rating of the rectifier diodes;18) the r.m.s. current rating of the rectifier diodes;19) the peak repetitive reverse voltage rating of the rectifier diodes;20) the peak repetitive forward current rating of the rectifier diodes;21) the line-line r.m.s. voltage of the three-phase supply;22) the rectification efficiency of the converter;23) the converter transformer utilisation factor;A single phase diode bridge rectifier has an input voltage of 240V and supplies a resistive load with a constant dc current of 10A. (a) Sketch a well labeled circuit of the rectifier described above.(b) Sketch the waveforms for the input voltage, output voltage, input current and output current. (c) Determine the maximum input voltage. (d) Load resistance. (e) Derive an equation for the average output voltage and calculate its value. (f) Derive an equation for the RMS value of the output voltage and calculate its value. (g) Determine the power dissipated in the loadA single-phase full-wave rectifier uses a power transformer whose secondary voltage is 220V r.m.s. The load resistor is 100kΩ. Neglect the transformer losses and the forward drops in the diodes. Determine the following: DC output voltage 2. Ripple voltage