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Author Topic: IR Light activated relay to switch 12 volt DC  (Read 2435 times)

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Geoff

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IR Light activated relay to switch 12 volt DC
« on: October 10, 2012, 20:32:45 PM »
Hi every one, I've just found you. Been looking for a site like this for ages!. The thing is, I know absolutely nothing about electronics but need to know what to use for the design of an invention of mine. I need to switch a 12 v DC supply by a relay that would be energized by the light of a 12v DC IR LED. I hope I've made myself clear and would very much appreciate anyone's input. Thank you for your time. Yours,...Geoff.     

kam

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Re: IR Light activated relay to switch 12 volt DC
« Reply #1 on: October 11, 2012, 00:18:47 AM »
Maybe something like this?

http://www.pcbheaven.com/circuitpages/Long_Range_IR_Beam_Break_Detector/

This circuit can do what you want. For what application you want this???

Geoff

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Re: IR Light activated relay to switch 12 volt DC
« Reply #2 on: October 11, 2012, 17:34:05 PM »
Hi Kam, and thanks for your reply. The design in the link is not what I'm looking for. I suppose I'll just have to pay for the services of an expert. My invention is a safety device, sorry I can't be more specific as I cannot give any info away as this will stop me from registering the design if it gets that far.