Rat Exterminator E-cat Circuit

Published:2011/4/25 20:28:00 Author:TaoXi | Keyword: E-cat, Rat Exterminator | From:SeekIC

The Rat Exterminator E-cat Circuit is as shown. ICl is the time base IC NE555, the time control circuit is composed of the NE555, potentiometer RP, resistors Rl, R2 and capacitor Cl, this potentiometer controls the interval of the meows. IC2 is the mew IC KD-5605, this device save the mew. Close the switch S, power supplier charges Cl by the RP, Rl, R2, when the two ends voltage is 2/3 of the power supplier, pin-3 of ICl outputs the low-level current, LED light, at the same time IC2 works and output the meow signal, this signal is amplified by the IC3 to promote the loud speaker BL to send out the realistic meow. At the same time, discharge tube of the ICl connected to discharge power to the pin-7 of IC1. When two ends voltage of Cl drops to l/3 of power supplier, pin-3 of ICl output high-level current, LED turns off, IC2 stop working, mew stop too. The power supplier charges Cl by the RP, Rl, R2.



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