发明名称 |
Discharge lamp lighting apparatus |
摘要 |
A resonant transformer is disposed at a stage following an inverter for inverting the polarity of a voltage applied to a discharge lamp. A parallel resonant circuit is formed by a resonant capacitor and a primary winding of the resonant transformer, and a periodic voltage applying section is connected to the parallel resonant circuit. The periodic voltage applying section is operated at a frequency that causes resonance in the parallel resonant circuit, thereby applying a high AC voltage to the discharge lamp in a period in which discharge is started in the discharge lamp.
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申请公布号 |
US7239090(B2) |
申请公布日期 |
2007.07.03 |
申请号 |
US20060546283 |
申请日期 |
2006.10.12 |
申请人 |
USHIO DENKI KABUSHIKI KAISHA |
发明人 |
OKAMOTO MASASHI;TAKAYA IZUMI;HASHIMOTO TAKUMI |
分类号 |
H05B37/02 |
主分类号 |
H05B37/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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