| 摘要 |
Provided is a high voltage device in which the rise and fall times of the output voltage can be reduced while suppressing the switching loss during the normal period. The high voltage device is equipped with: an inverter connected between a DC power supply and a resonant circuit and converting DC voltage to AC voltage; said resonant circuit; a rectifier circuit connected between said resonant circuit and a load, rectifying the AC voltage, and supplying a DC voltage to the load; and a control means for controlling said inverter. In the high voltage device, said control means is equipped with: a first mode in which said inverter operates so that the frequency of resonant current supplied to said resonant circuit from said inverter becomes substantially equal to the frequency at which said inverter is driven; a second mode in which said inverter operates so that the frequency of resonant current supplied to said resonant circuit from said inverter becomes (natural number + 1) times the frequency at which said inverter is driven; and a switching means for switching between said first mode and said second mode. |
