I am working on a rectifier design. For that I am analyzing the formula for capacitor selection. I came across a video reference.
- Io: average output current
- Vo: Average output voltage
- Vc: capacitor voltage
- Im: peak current
- α:duration of peak current
- π: half cycle duration
- Vr: ripple voltage
- Vm1,Vm2:capacitor peak voltage
I understood that for capacitor selection the formula is:
c=(π-α)/π * Io/2fVr
I don't understood how Vm2=Vm1 * Cosα.