555 snore suppressor circuit

Published:2011/5/29 20:41:00 Author:TaoXi | Keyword: 555, snore, suppressor | From:SeekIC

The figure 16-36 shows the snore suppressor circuit, it is composed of the snore receiving circuit, the monitoring control circuit and the stimulating circuit. The pickup B can be used to receive the snore, the snore is amplified by the two stages power tube, then it adds to the mandatory resetting port pin-4. The multivibrator is composed of the 555 and R5，R6，RP1，C3, the oscillation frequency f=1.44/(R5+RP1+2R6)C3. The RC parameters' oscillation frequency is 100～236Hz. When there is the snore, VT2 conducts, pin-4 of 555 has the high electric potential, the 555 starts working, pin-3 outputs the 700Hz oscillating wave, and this oscillating wave is boosted by the pressurization transformer T to stimulate both ends of the electrode DJ to produce the 45V electrical pulse.



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