Patent ID: 8102685

Claim:
A high voltage power supply, comprising: a switching unit that is driven in accordance with a frequency signal; a voltage resonant unit that is connected to the switching unit and includes an inductor, to which a voltage is applied when the switching unit is driven, and a capacitor; a voltage amplifying unit directly connected to the voltage resonant unit, wherein the voltage amplifying unit amplifies a voltage output from the voltage resonant unit and includes a plurality of rectifying and smoothing units, wherein a rectifying and smoothing unit of the plurality of rectifying and smoothing units rectifies and smoothes a voltage output from the voltage resonant unit and includes a diode and a capacitor that is connected to the inductor; a voltage output unit that outputs a voltage obtained from the voltage amplifying unit; and a frequency control unit that changes a frequency of the frequency signal that drives the switching unit so that the voltage output from the voltage output unit becomes a target voltage.