Ultrasonic Therapeutic Equipment (the 2nd)

Published:2011/6/28 7:55:00 Author:Felicity | Keyword: Ultrasonic Therapeutic Equipment (the 2nd) | From:SeekIC

Work of the circuit The circuit consists of power circuit, timer, controlling circuit, outputting circuit and ultrasonic vibration. (It showed in picture 9-17.) Turn on power switch S3. 15V voltage of GB separates into two parts. One is supplied to the ultrasonic vibration. And the other one is adjusted and produces 10V DC voltage. The DC voltage works as IC’s working voltage. And it is limited by R3 and lightens VL1. When the ultrasonic vibration is working, pulse voltage of high frequency. The pulse voltage glow discharges human body through HL. Put S2 in the position “1”, the ultrasonic vibration is influenced by timer. Press S1 and the ultrasonic vibration works without pause. When the regular time is over, the ultrasonic vibration outputs discontinuous ultrasonic.



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