Break burglar alarm circuit II


Posted on Dec 11, 2010

Ding for the circuit principle: care, vs SCR trigger grounded, it is in the off state. When someone leads A burglar broke, the SCR trigger end to give a trigger voltage is turn


Break burglar alarm circuit II
Click here to download the full size of the above Circuit.

ed on, the oscillator complementary VT1 and VT2 and the like of electrical work, issued a beep sound. Meanwhile strobe light emitting diode LED is also due to thyristor energized and winking, inform someone to steal. S to disarm the alarm switch.




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