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Frequency Component of single-phase center-tap full wave rectifier


As in the case of the Half-wave rectifier, the output of a full-wave rectifier also consists of (i) a dc component and (ii) a number of ac components which form the ripple. The Fourier series for rectifier output voltage is

VL = VLM(2/π – 4 cos2ωt/3π – 4 cos4ωt/15π – 4 cos6ωt/35π - ………….)

As seen, VL(dc) = 2VLM/π; VL1 = 4VLM/√2*3π, VL2 = 4VLM/√2 *15π etc

VL(ac) = √(VL12 = VL22) = √(4VLM/√2 *3 π)2 + (4VLM/√2 *15 π) = 0.305 VLM

Similarly, IL(ac) = Ir(rms) = √(IL12 + IL22) = 0.305 ILM

Here,

VLM =maximum value of load voltage = Vsm – diode drop – secondary resistance drop

VL = rms value of load voltage

IL = rms value of load current

ILM = maximum value of load current

IL(dc) =average value of load current

 

 

 

Related topic

  1. Single-phase full-wave rectifier
  2. Average and RMS value of center-tap full wave rectifier
  3. Efficiency of single-phase center-tap full wave rectifier
  4. Ripple Factor of single-phase center-tap full-wave rectifier
  5. Regulation of single-phase full-wave center-tap rectifier
  6. Peak Inverse Voltage of single-phase center-tap full-wave rectifier
  7. Peak Current of single-phase center-tap full-wave rectifier
  8. Transformer Utilization Factor (TUF) of single-phase center-tap full-wave rectifier
  9. Advantage of center-tap Full-wave rectifier 

 

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