Patent ID: 9025302
Filing Date: 2015-05-05
Classification: H01T

Abstract:
1. An ionizer that generates ions in the vicinity of an electrode through application of a voltage to the electrode, comprising: a first DC voltage generating circuit that generates a positive polarity DC voltage; a second DC voltage generating circuit that generates a negative polarity DC voltage; a first resistor connected to an output side of the first DC voltage generating circuit; a second resistor connected to an output side of the second DC voltage generating circuit; and a switch unit that connects the first resistor and the second resistor with the electrode, wherein: the first DC voltage generating circuit continuously generates the positive polarity DC voltage during operation of the ionizer and continuously outputs the generated positive polarity DC voltage to the first resistor; the second DC voltage generating circuit continuously generates the negative polarity DC voltage during operation of the ionizer and continuously outputs the generated negative polarity DC voltage to the second resistor; an absolute value of the positive polarity DC voltage is approximately equal to the absolute value of the negative polarity DC voltage the switch unit is equipped with a first switch capable of establishing a connection between the first resistor and the electrode, and a second switch capable of establishing a connection between the second resistor and the electrode; and the first switch and the second switch are turned ON in mutually different time bands, respectively.