| 摘要 |
<p>PURPOSE:To facilitate the insulating withstand voltage structure and make a device small-sized and inexpensive by arranging four windings wound on a high-voltage transformer in sequence: the primary winding, secondary winding, third winding and fourth winding. CONSTITUTION:Windings of a transformer are arranged in the order of the primary winding 25, secondary winding 30, third winding 35 and fourth winding 38. The secondary winding 30 and the third winding 35 generating the high voltage are integrated, the insulating structure is facilitated, the high-voltage generation state is fed back by the voltage signal appearing on the fourth winding 38, the defective insulation due to tie high voltage is prevented. When the fourth winding 38 is arranged as predetermined, its coupling with the secondary winding 30 and the third winding 35 becomes higher than that with the primary winding 25, the state of the high voltage occurrence can be detected, the voltage generated at the time of an abnormality can be suppressed by a driving circuit. A small-sized transformer with reasonable withstand voltage structure and high insulation and withstand voltage is obtained, the cost of the device is reduced.</p> |
