Dear All, I read in an earlier post that in order to get positive voltage from a negative input I can use two resistors to do so. Is that really true? I have a +12volt constant coming to a device, yet it send out a negative 200mA output for a half-second. I need that output to be turned positive and digital to be read by another device. Any help or suggestions? Thank you very much for your help, it is greatly appreciated. Sincerely, Christopher Koeber
Is the negative pulse actually going negative, or is it going from +12V to
0V?Leon
-- Leon Heller, G1HSM http://www.geocities.com/leon_heller
The numbers that I gave you are straight from the device's manual. It specifically says (+) 12V constant for the power and (-) 200mA 500 ms on the line that sends the signal. Unless I am reading it wrong I think that is what it says. Thank you.
Christopher Koeber
Hmmm, maybe if you could read the original in Japanese. Sounds like they want a 500ms pull down pulse from the 12 volts, and a sink current of 200 ma. This would make sense. In simplest terms, a pushbotton from the signal line to ground.
-- Luhan Monat: luhanis(at)yahoo(dot)com http://members.cox.net/berniekm "Any sufficiently advanced magick is indistinguishable from technology."
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