The microwave language burglarproof alarm

Published:2011/7/7 0:12:00 Author:qqtang | Keyword: language burglarproof alarm | From:SeekIC

The microwave language burglarproof alarm is fitted in homes, shops, storerooms, orchestras and so on. When someone is going into the alert area, it will make the sound of catch the thief . To prevent it from being broken, there are functions of breakdown alarm and AC/DC power auto shift in it. The principle of the circuit is shown in the figure. The alarm consists of the probe and the host. The probe consists of the microwave sensing module RD627 and op-amp A1, the output signal of RD627 is amplified by A1 and then connected with the host by the dual chip shield cable.



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