Rectifier Filter alternate Dc or Vr P-P calculation.

[Petrucciowns]

I have a predicament. I'm trying figure out the P-P ripple voltage of a Half-Wave rectifier filter, but the only equation I have is: I / (f * C) yet to find the current I need the DC voltage which I don't have yet. The same goes for the DC voltage. I have the equation: VDC = VOUT P – (VR P-P /2) yet I do not have the ripple voltage yet. So my question is, are there any alternate equations that will allow me to find the ripple voltage without the DC voltage, or the DC voltage without the ripple voltage.

Thanks.

 

[Petrucciowns]

Forget the first post. Now all I need is a formula to calculate Vr P-P in a full wave center tapped rectifier filter. If it is of any help the formula for the half-wave is: 1/ (F*R*C) * Vin-p.

Thanks

 

[Mene]

I understand your predicament and I am happy to provide some guidance. The equations you have mentioned are commonly used for calculating the ripple voltage and DC voltage in a rectifier filter circuit. However, there are alternative equations that can help you solve for these variables without having to know the other.

One approach is to use the relationship between the ripple voltage and the peak-to-peak voltage (VR P-P) in a rectifier circuit. This relationship states that the ripple voltage is equal to VR P-P divided by 2. So, if you know the peak-to-peak voltage, you can easily calculate the ripple voltage by dividing it by 2. This can be helpful if you are unable to directly measure the DC voltage or if it is constantly changing.

Another approach is to use the average voltage formula for a half-wave rectifier circuit, which is VDC = VOUT/π. This equation allows you to calculate the DC voltage based on the output voltage without needing to know the ripple voltage. From there, you can use the first equation you mentioned (I / (f * C)) to calculate the ripple voltage.

In summary, there are alternative equations that can help you solve for the ripple voltage or DC voltage in a rectifier filter circuit without needing to know the other variable. I hope this helps and good luck with your calculations.