Ultra-low-frequency Infrared Therapeutic Instrument

Published:2011/7/10 23:04:00 Author:Felicity | Keyword: Ultra-low-frequency Infrared, Therapeutic Instrument, | From:SeekIC

Work of the circuit The circuit consists of power circuits, ultra-low frequency oscillator and control circuit. (It is showed in picture 9-29.) Power circuits consists of power switch S, the power transformer T, bridge rectifier, UR, filter capacitors Cl and three-terminal voltage regulator integrated circuit IC1. Ultra-low frequency oscillator consists of resistors Rl, R2, potentiometer RP, diodes VDl, capacitors C2, C3 in a timely manner based integrated circuit IC2. Control circuit consists of Resistor R3, LED VL, thyristor VT and diode VD2.



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