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. Efficiency Equation: Tells us how much AC power or AC voltage is used by this rectifier.Basically, there are 3 main equations related to full wave rectifier.

We have already covered the characteristics and some basics of Full wave rectifier circuit.Įvery Rectifier type has its own efficiency and other properties. 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.

Full wave bridge rectifier calculator