# Is this output normal for a capacitor filter?

I have a question regarding oscillator outputs and capacitor filters.

I'm trying to build a voltage regulator. I've already calculated and tested the transformer and rectifier, and also the filter part. But when I looked at the output waves from the oscilloscope, the output is straight. Like this:

From the photos I have seen online:

The output waves are very different, is this a normal output from the filter? Take note though that I have a very high value for the farads.

The equation I used to solve this is: C = (Iload / 2) * frequency * Vpp where Iload = 1 A, f = 1Hz, Vpp = 1V

The result is 0.5F or 500000uF.

Is it an acceptable output from the capacitor filter?

Here is my schematic so far:

• Add a 1 amp load to the output. May 19, 2020 at 13:05
• Compute the ripple voltage for that capacitor into the actual load.
– user16324
May 19, 2020 at 13:06
• 1Hz is not realistic. AC in most parts of the world is either 50Hz or 60Hz.
– JRE
May 19, 2020 at 13:08
• Also, I think your formula is off for the capacitor value. Check here and compare to yours.
– JRE
May 19, 2020 at 13:10