Air purifier plasma concentration control method and control circuit

The invention discloses an air purifier plasma concentration control method and circuit, and the method comprises the steps: respectively outputting a first control signal and a second control signal through a first port and a second port of a controller drive circuit, driving a plasma drive circuit, and determining plasma; the concentration of the plasma is detected through a sensor, and the detection concentration is determined; and when the detection concentration exceeds a standard concentration threshold, reducing the duty ratio of the second control signal at a first rate, and adjusting the duty ratio of the first control signal at a second rate until the detection concentration is the same as a preset plasma concentration, thereby completing the control of the plasma concentration, according to the embodiment of the invention, the control signal can be adjusted through the controller driving circuit, so that the plasma concentration is adjusted and controlled, and the method can be widely applied to th