add
add
Menu

Efficiency of single-phase center-tap full wave rectifier


The efficiency of single phase center-tap full-wave rectifier is given by the ratio of the output dc power to the total amount of input power supplied to the circuit. It is also called conventional efficiency.

Pin = IL2 (R0 + RL) = (ILM/√2)2 (R0 + RL)  ½ ILM2(R0 + RL)

Pdc = IL(dc)2(R0 + RL) = (2ILM/ π)2 (R0 + RL) = 4ILM2/ π2 (R0 + RL)

Ƞ = Pdc/Pin = (8/ π2){RL /(R0 + RL)} = 0.812/(1 + R0 / RL) = 81.2%/(1 + R0 / RL)

Here,

IL = rms value of load current

ILM = maximum value of load current

IL(dc) =average value of load current

RL = load resistance

Rs = transformer secondary resistance

rd = diode forward resistance

R0 = Rs + rd

It is twice the value for the half-wave rectifier for the simple reason that a full-wave rectifier utilizes both half-cycles of the input ac supply.

 

 

 

Related topic

  1. Single-phase full-wave rectifier
  2. Average and RMS value of center-tap full wave rectifier
  3. Frequency Component 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 

 

Leave a Reply

Your email address will not be published. Required fields are marked *