发明名称 |
Discharge lamp lighting circuit |
摘要 |
A discharge lamp lighting circuit facilitates carrying out re-ignition and addresses a problem than can arise due to an influence of a capacitor in an auxiliary lighting circuit. A driving voltage generating portion supplies an AC driving voltage to a discharge lamp to be a driving target. An auxiliary lighting circuit is provided on a terminal side of the discharge lamp. An auxiliary lighting capacitor, an auxiliary lighting resistor and a switch are provided in series between the terminal of the discharge lamp and a fixed voltage terminal. A control circuit controls a conducting state of the switch. The switch is brought into an ON state before the discharge lamp is turned ON, and is brought into an OFF state after the discharge lamp is turned ON. |
申请公布号 |
US8314573(B2) |
申请公布日期 |
2012.11.20 |
申请号 |
US20090608089 |
申请日期 |
2009.10.29 |
申请人 |
ICHIKAWA TOMOYUKI;SAITO KAZUKI;ITO MASAYASU;KOITO MANUFACTURING CO., LTD. |
发明人 |
ICHIKAWA TOMOYUKI;SAITO KAZUKI;ITO MASAYASU |
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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