Pyroelectric infrared switch circuit diagram

Published:2011/3/30 22:07:00 Author:Jessie | Keyword: Pyroelectric infrared switch | From:SeekIC

When infrared sensor processing special chip HX9228receives infrared sensor's output signal, after completing linear amplification, two-way amplitude discrimination, signal processing, delay timing, blockade timing, its pin 2 outputs high-level make triode 8050 conduction, drive relay K suck closes. Then the relay contacts control corresponding controlled object. In the diagram, R2 adjustes choiceaccording to environmental brightness, when thepin 9 is low potential, chip can't trigger.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Control_Circuit/Pyroelectric_infrared_switch_circuit_diagram.html

Print this Page | Comments | Reading(3)