PCB Schematic Diagram of Palm Rejection Sound Control Lamp

A schematic diagram of an anti-false triggering sound control lamp composed of a controllable delay switch and a thyristor.

 

The voice-controlled lamp is a kind of voice-controlled electronic lighting device, which is composed of audio amplifier, frequency selecting circuit, delay opening circuit and thyristor circuit. It provides a voice-activated lamp that is easy to operate, flexible, anti-interference and sensitive. It uses the control signal "hissing" sound of about 1 second from the human mouth, which can turn on and off the sound control lighting device conveniently and in time, and has the automatic delay closing function of preventing the false trigger, and has the manual switch, which makes its application more convenient.

 

This circuit uses MC14011 four-mode and non-gate integrated circuit to complete automatic control lighting S unidirectional SCR: PCR606JMC; electret microphone. The photoresistor and other sound control lamps are generally composed of microphone, audio amplifier, frequency selecting circuit, voltage doubling rectifier circuit, amplitude discrimination circuit, constant voltage source circuit, delay opening circuit, controllable delay switch circuit, and silicon controlled circuit. Below is a quite creative voice control lamp schematic diagram.

 

PCB Schematic Diagram of Palm Rejection Sound Control Lamp