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Passive Infrared Circuits
Last Updated on: Tuesday, April 22, 2008 04:11 PM
Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:
IR detector:  (Electronic circuit added 4/05)
IR Detector:  (Electronic circuit added 4/05)
Parasitic Power Supply:  This circuit powered a remote doorbell transmitter when a passive IR sensor light was triggered. It had no noticeable effect on the sensor light performance.  Designed by Andrew R. Morris  (added 09/05)

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