Discrete sound and light control stairs delay switch circuit(8)

Published:2011/6/30 1:22:00 Author:Ecco | Keyword: Discrete, sound , light , control, stairs delay switch | From:SeekIC

The sound and light control stairs delay switch circuit shown as the chart uses an improved piezoelectric ceramics for the sound -power transducer, and the circuit structure is relatively simple. The circuit delay time is determined by many factors, and the icon data delay time is 50s, which do not meet the requirements. C2 can increase or decrease the capacity to adjust. Adjusting R9 can adjus the light control point of the circuit.



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