Electronic Mouse Exterminator (1)

Published:2011/5/17 5:13:00 Author:Sue | Keyword: Electronic, Mouse Exterminator (1) | From:SeekIC

When S is connected, an alternating voltage of 220V will generate a direct current voltage of 6V after reduction, rectification and filtration. The 6V voltage will be sent to IC's 4 pin and 8 pin, making the oscillator begin to work. The 50Hz alternating current signal of T will be sent to IC's 5 pin through C4, R3, controlling the oscillator. IC's 3 pin will output 20-40kHz varied sweep frequency signals, which will be sent to HA through C2, forcing HAto generate some sound pressure to drive the mouse away.



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