Psychological stress alleviating 3

Published:2011/6/27 2:24:00 Author:Nicole | Keyword: psychological stress, alleviating | From:SeekIC

This psychological stress alleviating circuit is composed of low frequency oscillator, high frequency oscillator and not gate circuit, it is shown in the figure 9-150. The low frequency oscillator is made of not gate integrated circuits D1, D2 and oher peripheral devices, the work frequency is 2-20Hz. The high frequency oscillator consists of D3, D4 and oher peripheral devices, the work frequency is 1KHz. The low frequency oscillator's frequency can be changed between 2-20Hz by adjusting potentiometer RP, then the flashing frequency of LEDs will be changed.



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