dsx12vd gets confused about state of computer

Intelligent 140 Watt 12V-12V
Regulated DC-DC Power Supply for Automotive Use

zootjeff
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Re: dsx12vd gets confused about state of computer

Postby zootjeff » Sat Apr 18, 2009 4:08 am

The OnSense line has to be connected to a voltage rail that is not a stanby rail. That is that when the computer goes to the off state, there shouldn't be any voltage on the line that is used for "On Sensing" Typically this can be a PS2 port or a hard drive +5 or +12v rail. If you use a 12V rail you need to use a DIODE (4148) in between the 12 volt rail sense point and the OnSense pin. The Diode points away from the OnSense pin.

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