

Average and RMS value of center-tap full wave rectifier
Let
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
VL(ac) = rms value of ac component in the output 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
VL = VLM/√2 = 0.707 VLM;
VL(dc) = 2VLM/ π = 0.636 V
VL(ac) = √(VL2 – VL(dc)2)
Similarly,
ILM = VLM/RL; IL = ILM/√2 = 0.707 ILM
IL(dc) = 2ILM / π = 0.636 ILM ; IL(ac) = √(IL2 – IL(dc)2)
Incidentally, IL(ac) is the same thing as Ir(rms)
Related topic
- Single-phase full-wave rectifier
- Efficiency of single-phase center-tap full wave rectifier
- Frequency Component of single-phase center-tap full wave rectifier
- Ripple Factor of single-phase center-tap full-wave rectifier
- Regulation of single-phase full-wave center-tap rectifier
- Peak Inverse Voltage of single-phase center-tap full-wave rectifier
- Peak Current of single-phase center-tap full-wave rectifier
- Transformer Utilization Factor (TUF) of single-phase center-tap full-wave rectifier
- Advantage of center-tap Full-wave rectifier