Instantaneous value of voltage applied to the rectifier is given as

V_S = V_m sin ωt

If the diode is assumed to have a forward resistance of R_F ohms and reverse resistance equal to infinity, then current flowing through the load resistance is given as

i₁ = I_m sin ωt and i₂ = 0 for the first half cycle

and i₁ = 0 and i₂ = I_m sin ωt for second half cycle

The total current flowing through tha load resistance R_L, being the sum of currents i₁ and i₂, is given as

i = i₁ + i₂ = I_m sin ωt for the whole cycle

Where peak value of current flowing through the load resistance R_L is given as

I_m = V_sm / (R_F + R_L)

Related Topic

1. Full-wave bridge rectifier
2. Average and RMS Value of bridge rectifier
   
3. Efficiency of bridge rectifier
4. Ripple Factor of bridge rectifier
5. Peak Inverse Voltage (PIV) of bridge rectifier
6. Transformer Utilization Factor of bridge rectifier
7. Advantage of bridge rectifier
8. Disadvantage of bridge rectifier