In a half wave rectifier, the input sine wave is 300 sin 100 Trt Volts. The average output voltage is a. 31.4 V b.95.54 V C. 102.52 V d.150 V
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- What is CEMF?In a phase controlled full wave rectifier, the source voltage is 50 VRMS sinusoidal, the source frequency is 60 Hz and the load is 20 ohms. Since the delay angle in the circuit is 20 °, which of the following is the value of the RMS load voltage? a) 99.54 V b) 49.77 V c) 70.38 V d) 35.19 V e) 23.46 VA voltage, 100sin314t volts, is maintained across a circuit consisting of a half-waverectifier in series with a 50 ohm resistor. The resistance of the rectifier may beassumed to be negligible in the forward direction and infinity in the reverse direction.Calculate the average and r.m.s. values of the current.
- The rectifier above drives a 950-Ω load with a peak voltage of 3.15V. For a 100-μF smoothing capacitor, calculate the ripple amplitude if the frequency is 50 Hz. (Assume VD,on = 0.75 V)Exe 1. A half-wave rectifier has a source of 120 V rms at 60 Hz and an R-L load with R=10 Ω and L= 10 mH.Determine, an expression for the load current, the average current, the power absorbed by the resistor, and the power factor. Hint: Beta=3.5 RadA step-down transformer supplies 25Vrms to a simple half wave rectifier power supply which is connected to a load resistance of 912ohm. The diode breakdown voltage, Vf is 0.7 V. Calculate the amplitude of the peak output voltage, Vpo appearing across the load., calculate the average DC voltage appearing across the load, calculate the DC current in mA drawn by the load.
- Calculate the average value of the output DC voltage for 20 trigger angles (a = 20) for a three-phase full-wave controlled rectifier operating in a network with phase neutral voltage of 150V.The power of an 80 Watt, 220V lamp is to be varied by controlling the firing angle of an SCR in a full wave rectifier circuit; a voltage of 220V peak appears accross each SCR. What rms voltage is developed in the lamp if the SCR has a forward breakdown voltage of 120V?A conductor carries a current that is equivalent to a 2.5 amp continuous current in one direction and a superimposed full-wave rectifier in the opposite direction. What is the maximum value of the latter if the average conductor current is zero?
- A half-wave rectifier with a reservoir capacitor is connected to an AC mains supply(220Vrms, 50Hz) via a 20:1 transformer. What value of the capacitor is needed forthe ripple voltage of X% of the peak input voltage? The load takes a maximum currentof ???? mA. X= 12% mA = 160Half-wave 60Hz sinusoidal uncontrolled rectifier circuit with a peak voltage value of 100V and a source inductance of 8mH is feeding a highly inductive load of 8A. The average value of the output voltage and power delivered are, respectively and what is the communication angle (u) (Power Electronics)A sinusoidal voltage of 48v, 60 Hz is applied to a half-wave rectifier with dynamic resistance of the diode of .001ohms turns ratio (3:1). Calculate the DC and RMS currents flowing through the load(R=210 ohms). Also calculate the dc output power developed, ac – input power supplied, rectification efficiency, and ripple factor.