555 ozone tube electronic disinfection circuit

Published:2011/5/23 8:22:00 Author:TaoXi | Keyword: ozone tube, electronic disinfection | From:SeekIC

The figure 16-39 shows the ozone generator circuit with the ozone tube, it is composed of the multivibrator, the boost driver stage and the ozone tube. The multivibrator is composed of the time base circuit 555 and the R1，R2，C3, it's oscillation frequency is preferably between the 15-20kHz, the oscillation frequency in the figure depends on the R1, R2 and C3's charging and discharging time constant, fc=1.44/(R1+2R2)C3. The parameter of the figure is 18kHz. The 555 output oscillation square wave makes the indicator light to shine, at the same time this square wave adds to the b pole of the VT1 power transistor through the current limiting resistor R4, and then it is amplified by VT1 to drive the transformer T. The ozone tube uses the 8mm X 63mm H63815 type tube, the terminal voltage is about 1500V, the working current is about 2.3mm,and the service life is not less than 1500 hours.



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