power supplies and chokes.

[Gus]

Would a choke cap supply might be a better solution for some solid state circuit power supplies?

A big solid state +- supply amp. Most of the time they are not regulated from what I have seen. I would think chokes might help.

I believe I had read in the past a company name starting with Mel? or something like that had dual chokes in a solid state amp.

Maybe a 48VAC transfomer and a cap(s) choke supply before the regulator for phantom supplies?

I am going to look up some stuff in books but I wonder if anyone does this.

 

[Svart]

probably not much anymore as good chokes in higher ratings are rather expensive compared to "newer" solutions.

 

[thermionic]

Choke-regulated supplies are commonplace in hi-fi.

Wouldn’t the precise qualities of a choke help combat triangular corruption from the Vreg – and filter noise from regulator switching, making it better applied as a last barrier-type device?


Justin

 

[Quince]

You don't need a big choke! If you take a small choke and make it resonant just above the ripple frequency by paralleling a capacitor, it will have very high impedance around resonance in the frequency range. There are more details here.

What I'm wondering is whether the choke-resonant input supply has as good power factor as a standard LC input, or more like the poor power factor of a C input.

 

[adamasd]

Thats a useful bit of information. Thanks alot.

 

[analag]

I did the choke resonant trick in the Fairchilesque monster I made a few months back. It works.

 

[mikka]

Cool ...... thank you.