Comments on: Looking for an exclusive or electronic component? http://howto.circuitdiagram.net/components/looking-for-an-exclusive-or-electronic-component/ Simple electronics basic theory related to how to build circuit diagram Wed, 26 Oct 2011 06:17:42 +0000 hourly 1 By: Joe http://howto.circuitdiagram.net/components/looking-for-an-exclusive-or-electronic-component/comment-page-1/#comment-75 Joe Sat, 03 Apr 2010 02:30:11 +0000 http://howto.circuitdiagram.net/components/looking-for-an-exclusive-or-electronic-component/#comment-75 You're overdesigning this thing. Forget about the Boolean algebra! All you need is a 12 volt relay. Your backup light voltage ("A") goes to one end of the coil. The other end of the coil goes to ground. Cut the license plate light wire, and connect both ends to the "Normally Closed" contacts of the relay. You’re overdesigning this thing. Forget about the Boolean algebra!

All you need is a 12 volt relay. Your backup light voltage (“A”) goes to one end of the coil. The other end of the coil goes to ground.

Cut the license plate light wire, and connect both ends to the “Normally Closed” contacts of the relay.

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