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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Re: Practical Choke filters for power supply (Solid State) posted by Eli Duttman on June 10, 2001 at 21:30:39:
Hi Eli,
The formula for the choke input filter is I=V/942L where
I = critical current
V = output voltage
L = inductor in Henry's
Also note the choke input filter does work as good at a current lower than I critical.
To calculate the capacitor: rippleV=3.38x10^-6/LC at 50Hz.The maximum current in my Amzilla is also 6A but at 80V! With the inductor I mentioned and four 16.800 mufarad capacitors the pi-filter has no problem. I tested it at full power in a 4 Ohm load! For the choke input filter you have to search a much higher valued choke with 6A current rating. Hopefully we are not talking at cross-purposes.
ELSO
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Follow Ups
- Re: Practical Choke filters for power supply (Solid State) - Elso Kwak 06/11/0102:53:15 06/11/01 (1)
- Sorry, that is 16,800 mufarad(nt) - Elso Kwak 14:09:43 06/11/01 (0)
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