Recently, Somebody Somewhere wrote these words
> I have a little circuit that runs off the 12 volt power supply in a
> vehicle. Part of the circuit needs a bipolar supply, and I was
> planning to use one of the cute little DC / DC converters to output
> maybe 5 watts off + and - 15 volt DC. The converter I have selected
> has a PI filter on the input, accepts a wide input range (8-18 Volts),
> and is regulated. My question is whether alternator hash will be a
> problem, Will I need a choke and capacitor on the front end of this
> gizmo like we used to put on car radios and the like? Or will the
> converter do its job OK with raw vehicle DC?
>
> Thanks in advance.
>
Put in 5 uH at least. Now.
I was involved with an anti skid system for trailers that went into a
company that had a rogue tractor with one overhaul too many on the
alternator. It gave out tiny 1000v spikes and killed the system on every
trailer we plugged into it. You have been warned
--
With best Regards,
Declan Moriarty.
--
Author: Declan Moriarty
INET: [EMAIL PROTECTED]
Fat City Hosting, San Diego, California -- http://www.fatcity.com
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