| 摘要 |
A voltage conversion unit converts alternating current voltage generated by an alternating current voltage generation unit into a predetermined output voltage. An adjustment unit monitors the output voltage and adjusts a driving pattern for driving the alternating current voltage generation unit in accordance with a waveform distortion generated in a rectangular wave of the output voltage. The driving pattern is a pattern having, in a half cycle of the rectangular wave of the alternating current voltage, a first ON period during which the alternating current voltage is applied to the voltage conversion unit, an OFF period during which the alternating current voltage is not applied to the voltage conversion unit, and a second ON period during which the alternating current voltage is applied to the voltage conversion unit. The adjustment unit adjusts a ratio of the first ON period, the OFF period, and the second ON. |
