555 acupuncture therapy and massage therapy instruments circuit

Published:2011/5/23 6:42:00 Author:TaoXi | Keyword: acupuncture therapy, massage therapy instruments | From:SeekIC

As the figure 16-23 shows, the treatment equipment uses the 555 as the core, and the audio multivibrator is composed of the 555, the signal is boosted by the transformer T1 and then produces the amplitude adjustable pulse. The astable multivibrator is composed of the 555 and R1，R2，C1, the oscillation frequency f=1.44/(R1_2R2)C1, it is about 35Hz, the pulse width is about 17ms. The transformer T1 uses the small radio output transformer, and this transformer is reversed. The output amplitude is about 80V. You can connect the acupuncture needle, the counter electrode and the piezoelectric ceramics to the CK jack.



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