Relay closing indicating circuit

Published:2011/6/20 22:42:00 Author:TaoXi | Keyword: Relay, closing, indicating circuit | From:SeekIC

The relay is installed in the interior of the electrical equipment, the operating state is not intuitive, so the author makes some improvements which is as shown in the figure. The two ends of the coil are connected with the light-emitting diode VD1, when the control voltage is positive, the transistor conducts, the relay J closes, at the same time the light-emitting diode is turned on, this means the relay coil is coupled with the power. The light-emitting diode can be installed at the conspicuous place of the outer covering.



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

Print this Page | Comments | Reading(3)