Electric snore-ceasing equipment 1

Published:2011/6/30 22:36:00 Author:Nicole | Keyword: Electric snore-ceasing equipment | From:SeekIC

The electric snore-ceasing equipment circuit is composed of snoring detection control circuit and electricity pulse generation circuit, it is shown in the figure 9-143. The snoring detection control circuit is made of microphone BM, audio level demodulation integrated circuit IC(NJM2027D) and peripheral resistor capacitor component. NJM2027D contains operation amplifier, detector, electronic switch, Schmitt trigger, output buffer and constant current source, its pin function is: 1 foot is signal input terminal; 2 foot, 3 foot are gain control terminals; 4 foot is grounding terminal; 5 foot is recovery time control terminal; 6 foot, 7 foot are level output terminals; 8 foot is power supply terminal.



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