Re: need reliable 12-13 volts from 24volt wheelchair
- From: "Greg Neill" <gneillREM@xxxxxxxxxxxxxxx>
- Date: Fri, 29 Feb 2008 12:14:32 -0500
<dpondoc@xxxxxxxxx> wrote in message
news:88d84610-c5bd-4690-8866-17c202422f31@xxxxxxxxxxxxxxxxxxxxxxxxxxxx
I have a 24 volt wheelchair that runs on 2 12 volt batteries in
series. I need output not to exceed 13 volts for my cpap machine.
There are many DC-DC converters that are labeled 24 to 12 but it seems
all of these put out 13.5 or 13.8 volts. The cpap manufacturer clearly
stated that any voltage above 13 may damage the equipment. Is there a
way to reliably shave a volt or so off of the converter output?
Perhaps by using a diode in series? The Cpap is rated at 40watts max
or 3 amps at 13 volts. Any suggestions are welcomed, the more specific
the better.
Thanks
Is there some reason why you can't simply take
a tap from the center of the two battery
connection?
.
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