Re: [CAD_CAM_EDM_DRO] backward transformer

Gene,

The rectifier by itself doesn't until you add a filter capacitor to store
the DC. Then the DC will be close to 1.4 times the AC voltage.


Bob Campbell
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----- Original Message -----
From: "Gene" <capper@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>; <DIY-CNC@yahoogroups.com>
Sent: Wednesday, June 16, 2004 5:09 PM
Subject: [CAD_CAM_EDM_DRO] backward transformer


> I have a large transformer that came out of a 48 volt power supply. It
> has three output leads, the two center taps are hooked together, the
> voltage reads 37.5 from center to either side and 72 end to end. however
> when I hook up a 25 amp 250 volt bridge rectifier it reads 33.5 volts
> center to end and 67.5 volts end to end. I thought the rectifier would
> increase the voltage by 1.44. why is it going backwards?
>
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