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Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

Re: choke regulation + filtering in SS amps--Need source

149.99.128.178

Alot of laboratory power supplies that use high power series pass regulators use choke filters in the power supply before the pass elements. But boy these puppies are huge, 1-5 henry with a dc resistance of only 3-4 ohms and probably weigh 25 pounds each. When I order a replacement they typically cost 7-8 hundred dollars, Can.
However, you can use a smaller choke if you use a capacitor input filter.
Heath



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