发明名称 |
METHOD AND DEVICE FOR DRIVING AN HID LAMP |
摘要 |
<p>A method for driving and dimming an HID lamp (2), the method comprising the steps of: providing a controllable HBCF current source stage (20); using the HBCF current source stage (20) to generate commutating DC lamp current (I) having alternating current direction; supplying the HBCF current source stage (20) with an intermediate voltage (Vo). In normal mode, the commutating DC lamp current (I) is generated with a predetermined nominal current magnitude (IN) while the intermediate voltage (Vo) has a predetermined nominal level (VN). In a dim mode, the commutating DC lamp current (I) is generated with a current magnitude lower than said nominal current magnitude (IN) while the intermediate voltage (Vo) has a level (VH) higher than said nominal level (VN).</p> |
申请公布号 |
EP2638786(B1) |
申请公布日期 |
2014.03.19 |
申请号 |
EP20110797367 |
申请日期 |
2011.11.04 |
申请人 |
KONINKLIJKE PHILIPS N.V. |
发明人 |
WERNARS, JOHANNES PETRUS;VAN ZUNDERT, ROY HENDRIK ANNA MARIA;VAN MEEL, MARCUS CORNELIS |
分类号 |
H05B41/288;H05B41/292 |
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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