FIRE DETECTOR Russian patent published in 2011 - IPC G08B17/00 

FIELD: fire safety.

SUBSTANCE: fire detector comprises a processing and control unit, a sensor, an output signal generator, an optical indicator, the first element of single-sided conductivity, input terminals to connect a fire alarm loop circuit, a current and voltage limiter, additionally it comprises a current switch with high input resistance, a voltage divider, the second element of single-sided conductivity and the parallel RC chain.

EFFECT: in the proposed fire detector, as a result of using parallel RC chain, the voltage divider, the current switch and the second element of single-sided conductivity with their connections with other elements of the detector circuit, the possibility to control the fire detector supply voltage is ensured, as well as to control the residual discharge of the capacitor, which supplies to the processing and control unit, and it its turn makes it possible to ensure recovery of the fire detector on-duty operation mode according to standards and regulations.

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