Re: DC supply & ripples

"Lory" <lorrainewinters80@xxxxxxxxx> wrote in message
news:1117146922.950761.147240@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> Hi,
>
> Does ordinary DC power supply produce ripples? What is the
> usual frequency and waveform shape (sine, square) of
> the ripples supposed the source is 60 hz. What
> circuit component (capacitor, ics, etc) can eliminate
> all ripples? How come the dc power supply didn't use
> this eliminator, is it expensive? Tnx.
>
> Lory
>
Hi Lory.

Take a look at: http://www.oldradioz.com/electronic_course/ch3.htm
It uses valves, which give me a warm rosy glow; you can substitute
semiconductor diodes and the theory doesn't change. This page gives a fairly
extensive explanation of what's going on which isn't the case with a lot of
them.

You should go out and buy a copy of The ARRL Handbook (Amazon or any
half-decent bookstore, even in the Antipodes). It will answer a lot of your
questions and give you insights into what's going on. It is not at the
engineering level but is excellent grounding.

Cheers.

Ken


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