It is defined as the ratio of RMS value of the output voltage to the average value of the output voltage. Η max =0.812 = 81.2% Calculation of Form Factor and Peak factor: Form factor of Full wave Rectifier: If r f is neglected as compared to R L then the efficiency of the rectifier is maximum. Put the values of P dc and P ac from above equations, therefore, Since output is obtained across R L, therefore The instantaneous value of current is given by the equation: The diagram given below shows the input voltage wave and rectified output wave. We take r f as the forward resistance of crystal diode and R L be the load resistance of the circuit. And as we have to find maximum efficiency, we will take it as variable and suppose it to be V m sin θ. Let the AC voltage applied (input voltage to be rectified) is v. Full Wave Rectifier Efficiency Calculation:
The efficiency of a full wave rectifier is defined as the ratio of DC power output to the applied input AC power. I am going to describe all of these one by one in this article.
So I decided to include Mathematical derivation of these equations of full wave rectifier also. When I was studying, the question that mostly asked was Efficiency equation of full wave rectifier circuit and where it is used.Īlso some other equations like peak factor and form factor was asked with derivation was asked.Īnd because these equations involves mathematical expressions, this is the part where I and most of the students faced difficulty.
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