Separate-excitation high frequency and high voltage oscillation circuit and control method

Abstract

The invention discloses a separate-excitation high frequency and high voltage oscillation circuit and a control method. The discharge effect of an ozone ceramic chip is improved by adopting a high frequency oscillation mode, the discharge area is more uniform, the ozone generation quantity is increased more obviously, the efficiency of a boosting transformer is improved, the reactive power of the boosting transformer is effectively reduced, the power consumption of a high voltage module is reduced, and the reliability of the high voltage module is improved; and by means of a separate-excitation control mode, the problem that when the use environment of the ozone ceramic chip changes or when the production of a differential capacitance value changes, the high voltage module cannot be solved is effectively avoided, and the product applicability is improved.

Description

technical field [0001] The invention relates to the field of ozone high-voltage modules, in particular to an independently excited high-frequency high-voltage oscillating circuit and a control method applied to the ozone high-voltage module. Background technique [0002] Ozone: It has strong oxidation properties and can destroy the structure of microbial cell membranes. On the one hand, it will affect the human body, and on the other hand, it can directly act on the inside of bacteria, so as to achieve a rapid sterilization effect. Compared with other methods, its sterilization effect is more obvious. , so ozone is widely used in water treatment and air purification. Ozone in industry is generally generated by adding high-voltage electricity to the two poles of the ozone sheet through ionization. There are generally two ways to generate high-voltage electricity, linear transformer step-up method, and self-excited high-frequency oscillation step-up method. But these two ways...

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Problems solved by technology

Linear transformer step-up method: high reliability, but because the power supply voltage frequency is 50HZ or 60HZ, the frequency is low, the magnetic coupling effect is not good, the capacitive effect of the ozone ceramic sheet will reduce the corona intensity, and the reactive power of the step-up transformer itself Higher, with the increase of ozone demand, the output power needs to be increased, the volume of the linear transformer increases significantly, and the cost is high, generally used in occasions requiring small doses of ozone

Self-excited high-frequency oscillation boost method: low cost, large amount of ozone, but because the generation of oscillation is closely related to the capacitance of the ozone ceramic sheet itself, when the ozone ceramic sheet is damp or different, the frequency is easy to change, so that The amount of ozone produced has a relatively obvious change, and even the frequency is abnormal, which makes the internal power consumption of the high-voltage module rise significantly, and the high-voltage module is burned out.

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