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Old 06-20-2007, 04:34 PM
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Quote:
Originally Posted by tricolor View Post
This supply is regulated (or translated into DC) through a sort of "bridge of Diodes" integrated nowadays in the Alternator itself. And this supplied current is neat and clean under 13.2V but rough and full of ripples above.
The "Bridge of diodes" is a full-wave bridge rectifier (4 diodes), which turns the AC coming from the alternator into pulsing DC. So think of a sine wave... to picture what the output waveform is, just take the negative alternation of the sine wave, and flip it over the 0-volt line (like a mirror image). What you end up is is a pulsing DC waveform that looks like a bunch of upside-down "U"s. Think of the following upside down: UUUUUUUUUUU That's what the resulting DC waveform looks like.

The only way to clean this up is a 1:1 transformer... like I said earlier.
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