

Efficiency of bridge rectifier
The efficiency of single phase full-wave bridge 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.
Ƞ = DC power delivered to the load/AC input power from the transformer
=Pdc/Pin
Pdc = I2L(dc) RL = (2IL(dc)/ π) RL = 0.636 ILM RL
Pin = I2L(ac)(RL + RF) = I2L(dc) (RL + RF)/2
% Ƞ = 81.2/(1 + 2rd/RL)
Here,
RL = load resistance
rd = diode forward resistance
RF = Rs + rd
IL = rms value of load current
ILM = maximum value of load current
IL(dc) =average value of load current
Related Topic
- Full-wave bridge rectifier
- Average and RMS Value of bridge rectifier
- Ripple Factor of bridge rectifier
- Peak Inverse Voltage (PIV) of bridge rectifier
- Peak Current of bridge rectifier
- Transformer Utilization Factor of bridge rectifier
- Advantage of bridge rectifier
- Disadvantage of bridge rectifier