Natural wind fan control circuit with cricket sounds

Published:2012/9/12 22:48:00 Author:Ecco | Keyword: Natural wind, fan control , cricket sounds | From:SeekIC

The circuit is shown as the figure. It includes multivibrator circuit, SCR control circuit, voice sound circuit, audio amplifier circuit and AC buck rectifier circuit. It enables fans to send natural wind with varying soft wind power and accompanied by autumnal cricket sounds. Time-base circuit 555 and R1 , RP1 , VD1, VD2 , C2 form a low-frequency multivibrator with adjustable duty cycle, and the oscillation frequency is:



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

Print this Page | Comments | Reading(3)