Position: Index > Switch Circuit >

Precision Dark-Activated Switch With Hysteresis Circuit

2015-10-04 08:39  
Declaration:We aim to transmit more information by carrying articles . We will delete it soon, if we are involved in the problems of article content ,copyright or other problems.


A GdS cell is one leg of a bridge circuit. Potentiometer R6 iri another leg sets the trip point. Potentiometer R5 provides hysteresis adjustment to prevent chattering or hunting of the relay.
Precision Dark-Activated Switch With Hysteresis Circuit

The light level has to increase noticeably before the 2N3904 turns off and the circuit deactivates.



Reprinted Url Of This Article:
http://www.next.gr/sens-detectors/light/precision-dark-activated-switch-with-hysteresis-circuit-l14741.html