The ultraviolet fire sound/light alarm equipment circuit

Published:2011/7/8 2:27:00 Author:Seven | Keyword: ultraviolet, alarm equipment | From:SeekIC

See as the figure, the circuit consists of the ultraviolet sensor Buv, the single stable trigger circuit, anti-false alarm judging circuit, fire fighting truck sound making alarm circuit and AC step-down rectifier circuit, etc.



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