发明名称 |
LIGHTING DEVICE, LIGHTING CONTROL DEVICE, ILLUMINATION DEVICE, AND PROJECTOR |
摘要 |
A lighting device which lights the discharge lamp, includes: a converting circuit which converts the direct current into an alternating current; a pulse generating circuit which generates a high voltage pulse; and a trigger circuit which causes the pulse generating circuit to generate the high voltage pulse, wherein the pulse generating circuit includes a primary winding and a secondary winding and generates the high voltage pulse by increasing a current input to the secondary winding based on a current input to the primary winding, and the trigger circuit includes a high pass filter; a first capacitor which stores and discharges charges input via the high pass filter; and a third switching element which outputs an output current from a second capacitor connected in parallel to the converting circuit to the primary winding if an output voltage from the first capacitor exceeds a threshold.
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申请公布号 |
US2011234997(A1) |
申请公布日期 |
2011.09.29 |
申请号 |
US201113045993 |
申请日期 |
2011.03.11 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
SAITO OSAMU;TSUDA MASAHIDE |
分类号 |
H05B41/288;G03B21/20 |
主分类号 |
H05B41/288 |
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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