Re: difference between anode and cathode?
- From: "Michael A. Terrell" <mike.terrell@xxxxxxxxxxxxx>
- Date: Mon, 30 May 2005 02:36:04 GMT
kell wrote:
>
> Want to get even more confused? With a diode bridge, the positive
> output comes from the cathode (negative) end of the diodes.
> Think like this: for current to flow through a diode, it must travel
> in the direction of the arrow (talking about conventional positive
> current here). Like water, current flows "downhill" in a diode -- from
> the positive (anode) to the negative (cathode). So it comes out the
> cathode, making that the positive output of the bridge.
That's not confusing. You have two terminals marked AC and a single
+ or - output. A full wave bridge has four terminals, so you have both
+ and - outputs that connect directly to the filter capacitor, + to +
and - to -. The electrons are pulled from the + line, leaving it with a
positive charge and are sent to the - to give it a negative charge.
Forget the water analogy. They will trip you up because they are only
vaguely similar.
--
Former professional electron wrangler.
Michael A. Terrell
Central Florida
.
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