Novel door light switch circuit

Published:2011/6/8 7:20:00 Author:Christina | Keyword: Novel, door light, switch | From:SeekIC

The door light switch that is installed outside the door is always opened and closed by other people, so it is very easy to be damaged, therefore we make the novel door light switch. This door light switch is the knock type, and it has the function of doorbell. The circuit is as shown in the figure, it is composed of the knock detection circuit, the door light trigger and delay control circuit, the doorbell circuit and the power supply circuit.etc. The F1～F4 use the CD4093 digital integrated circuit. The music integrated circuit uses the KD-156. The VT1 and VT2 use the audion SC9014; the VT3 uses the audion SC9013; the VT4 uses the 2SC9012; the VT5 uses the 2SC8050.



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

Print this Page | Comments | Reading(3)