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# Dc power3 ac power 4recification efficiency5 ripple

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2.DC power,3. AC Power, 4.Recification efficiency,5. Ripple Factor 5. A FWR is fed from a transformer having a center tapped secondary winding. The RMS value from either end of Secondary to center tap is 30v.if the diode forward resistance is 2 Ω and that the secondary is 1kΩ . Calculate, a. power delivered to the load b. % of regulation at full load, c. Efficiency of the rectification d. TUF of secondary. 6. For FWR circuit, V is sinusoidal voltage. If the max allowable avg.. DC current in each diode is 1A, calculate the max allowable peak to peak value of V. Assume two diodes to be identical and neglect diode forward resistance.

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7. A FWR uses a diode with forward resistance of 1 Ω.The transformer secondary is center tap with output 10-0-10 V rms and has resistance of 5Ω for each half section. Calculate...1. No load DC voltage 2. DC output voltage of 100mA 3. % regulation at 100mA. 8. What is the necessary AC input power from the transformer secondary used in a HWR to deliver 500 w of DC power to the load? What would be the AC input power for the same load in a FWR? 9. The four semiconductor diodes used in a bridge rectifier each having a forward resistance of 0.1 Ω and infinite reverse resistance, feed a dc current of 10A to a resistive load from sinusoidal varying alternating supply of 30 V(rms).Determine the resistance of load and the efficiency of the ckt. 10. A 5 kΩ load is fed from a bridge rectifier connected across a transformer secondary whose primary is connected to 460v, 50Hz supply. The ratio of No. of primary turns to secondary turns is 2:1.Calculate dc load current, DC load voltage, ripple voltage and PIV rating of the diode. 11. AFW bridge rectifier is supplied from 230v,50 HZ and uses a transformer of turns ratio of 15:1.It uses a load resistance of 50Ω.Calculate load voltage and ripple voltage. Assume ideal diode and transformer. Assume standard value of ripple factor for FWR
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