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Re: heater fan sucks

To: Dave & M <rusd@velocitus.net>
Subject: Re: heater fan sucks
From: bspidell@comcast.net (Bob Spidell)
Date: Thu, 15 Sep 2005 23:27:18 +0000
My apologies, Dave ... I stand corrected:

http://en.wikipedia.org/wiki/Diode_bridge


I've never seen a bridge used like this.


bs


***************************************************************
Bob Spidell         San Jose, CA        bspidell@comcast.net
'67 Austin-Healey 3000             '56 Austin-Healey 100M
***************************************************************


> Hi Bob,
> 
> Better check out the theory & trace out the paths first. The full wave
> bridge is a common way to make a DC device non polarity sensitive.
> Steering diodes would be another description.
> 
> Dave Russell
> 
> Bob Spidell wrote:
>  > re:
>  >
>  > "If a full wave bridge rectifier were connected between the supply
>  > connections & the permanent magnet  motor, the supply polarity could
>  > be connected to the motor either way & it would still run in the same
>  >  direction"
>  >
>  >
>  > Don't think so.  Rectifiers (diodes, usually arranged as half- or
>  > full-wave bridges) are used to convert AC current into a "lumpy" DC
>  > current, which is usually smoothed with capacitors.  A full-wave
>  > bridge rectifier on a DC current (Healey "power supply") would just
>  > pass the current (to only one of its outputs).
>  >
>  >
>  > bs




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