Discussion and calculations 1. Compare between the practical and theoretical results for input and output voltages 2. What design parameters of the half wave single-phase rectifier? 3. How do you calculate VRM of a half wave rectifier?. 4. How do I know if my rectifier is single phase ? 5. Design a single phase uncontrolled RL half wave rectifier with R=1KQ , L=500 mf and calculate the Vo &lo

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What happens when one of the diode is removed from the bridge rectifier? Show the input and output waveform and state the reason .

Explain the working operation of the V-I characteristics of the Silicon-Controlled Rectifier.

Define Half Wave and Full wave Bridge Rectifiers. Explain why the efficiency of Full wave Bridge rectifier is more than half wave rectifiers by equations?

Question 1 a) Compare the holding current with the latching in SCR. b) A 400 V/50 Hz three-phase system is loaded with an ideal three-phase diode rectifier having a completely smooth output current of 50 A. An ideal three-phase thyristor converter is connected in parallel with the diode rectifier. The output current of the thyristor converter is also 50 A and completely smooth, but the output power of the thyristor converter is zero. i. Draw the waveforms of the input currents to the two converters and the the sum of the two currents. ii. Calculate the power factor for the total load. c) The shown converter in Figure 1 operates in continuous conduction mode. Assume the components are ideal. i, (1) in (t) v ic (t) Vo (t) iL (t) +v (t) - is (1) "; (1) Figure 1 i. Sketch of i (t) and VL(t) for one switching period Ts. ii. Determine the DC voltage gain Vo/Vg as function of duty cycle, D.

-,- three phase half wave controlled rectifier with resistive load (R=10 2) if the input supply voltage is (Vrms = 380 Volt and f= 50 Hz) and the trigger angle (a = 60°), then determine the followings:- a) Draw the rectifier circuit. b) Draw to scale the input voltage, the load voltage and the current waveforins. c) Calculate the average value of the output voltage.

Investigate and analyze Full Wave Bridge Rectifier.

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1. A single-phase semi-controlled rectifier, is supplied from 230 V, 50 Hz source. The load consists of R = 102, E = 100 V and a large inductance so as to render the load current level. For a firing delay angle of 30°, Draw and calculate average output voltage, Average output current and also find the range of firing angle control. Va