METHOD AND DEVICE FOR CONTROLLING OZONE PRODUCTION RATE

摘要

PROBLEM TO BE SOLVED: To linearly control an ozone production rate according to a control input signal by controlling the ON/OFF of high frequency and high voltage pulses for producing ozone by the ON/OFF time ratio of other frequency relatively lower than the frequency of the high voltage, in an ozone producing apparatus of the silent discharge system. SOLUTION: In order control the ozone production rate, a first signal is generated as direct current in the range of 5 to 10 V, and a second signal is generated as pulses in the range of 1 to 5 kHz whose ON/OFF time ratio is determined in response to the first signal. High frequency signal for producing ozone and being pulses in the range of 1 to 50 kHz is impressed to the ozone producing apparatus only when the second signal is ON.