| 发明名称 | Ion generation device and electrical apparatus | ||
| 摘要 | An ion generation device includes: a high voltage generation circuit; and an ion generation element. The high voltage generation circuit includes: a capacitor; a high voltage transformer; a switching element; and a pulse signal generation portion which generates a pulse signal for controlling the turning on and off of the switching element. The pulse signal generation portion adjusts a pulse width of an on-period such that the pulse width of the on-period of the pulse signal is substantially equal to a time obtained by multiplying the reciprocal of an output voltage frequency at the time of a forward operation of the high voltage transformer by one-fourth. | ||
| 申请公布号 | US9099275(B2) | 申请公布日期 | 2015.08.04 |
| 申请号 | US201214351594 | 申请日期 | 2012.10.17 |
| 申请人 | SHARP KABUSHIKI KAISHA | 发明人 | Date Kazuharu |
| 分类号 | H01T23/00;H01T19/04;H01J27/26 | 主分类号 | H01T23/00 |
| 代理机构 | Birch, Stewart, Kolasch & Birch, LLP | 代理人 | Birch, Stewart, Kolasch & Birch, LLP |
| 主权项 | 1. An ion generation device comprising: a high voltage generation circuit; and an ion generation element to which a high voltage output from the high voltage generation circuit or a voltage generated based on the high voltage output from the high voltage generation circuit is applied, wherein the high voltage generation circuit includes: a capacitor which stores an input direct-current voltage or a voltage obtained by performing DC/DC conversion on the input direct-current voltage;a high voltage transformer which steps up a voltage output from the capacitor connected to a primary side to output a high voltage to a secondary side;a switching element which is connected to the primary side of the high voltage transformer and which intermittently passes a current on the primary side of the high voltage transformer by being turned on and off; anda pulse signal generation portion which generates a pulse signal for controlling the turning on and off of the switching element, and the pulse signal generation portion adjusts a pulse width of an on-period such that the pulse width of the on-period during which the switching element is kept on by the pulse signal is substantially equal to a time obtained by multiplying a reciprocal of an output voltage frequency at a time of a forward operation of the high voltage transformer by one-fourth. | ||
| 地址 | Osaka JP | ||