Average and RMS Value of single-phase half-wave rectifier


Vm = maximum value of transformer secondary voltage

Vs =rms value of secondary voltage

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

VL = rms value of load voltage

IL = rms value of load current

VL(dc) =average value of load voltage

IL(dc) = average value of load current

ILM = maximum value of load current

RL = load resistance

RS = transformer secondary resistance

rd = diode forward resistance


R0 = RS + rd
ILM = Vsm – VB /(RS + rd) + RL
        = Vsm –VB  
VL(dc) = VLM/π = 0.318VLM
IL(dc) = ILM/π = 0.318ILM
IL = ILMn/2 = 0.5ILM = 0.5VLM/RL



Related topic
  1. Single-phase half-wave rectifier
  2. Efficiency of single-phase half-wave rectifier
  3. Frequency Component of Half-Wave Rectifier Voltage and Current
  4. Ripple Factor of single phase Half-Wave rectifier
  5. Peak Inverse Voltage (PIV) of single phase half wave rectifier
  6. Peak current of single phase half wave rectifier
  7. Transformer Utilization Factor (TUF) of single phase half wave rectifier 
  8. Advantage and Disadvantage of single-phase half-wave rectifier

2 thoughts on “Average and RMS Value of single-phase half-wave rectifier”

  1. Is there any text book that teaches calculating the RMS and Average values for different rectifier circuit. I am actually having a hard time solving any new problem in diode rectifer. I know that the integration will help, but I am having a hard time finding the limits for my integral.

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