Re: DC Voltages

From:         Patrick Ware <>
Organization: SmartWare
Date:         21 May 96 11:10:49 
References:   1
Followups:    1
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  or MIME structure wrote:
> I have a question about the 28VDC used on commercial aircraft.  Are
> there any special or unusual characteristics about this current?  I
> have a need to take the 28VDC and convert it to 12VDC in an aircraft,
> any ideas?

I can only speak for the 737 aircraft which derives it's 28vdc through
transformer rectifiers off the ac busses. I would assume that in order
to get 12vdc you wou need a different T/R and step it down even further.

Patrick Ware