发明名称 |
HIGH INTENSITY DISCHARGE LAMP CONTROL CIRCUIT AND CONTROL METHOD |
摘要 |
A high intensity discharge lamp (HID) control circuit and method are provided in the present invention. The circuit includes a first winding and a second winding, both of which are coupled with a series-connected inductor of an HID lamp circuit; a current zero point detector for detecting an inductor current zero crossing signal in the HID lamp circuit; an inductor current signal generator for generating an inductor current signal in the circuit to indicate a current value of the HID lamp; a modulator having input terminals connected to the current zero point detector and the inductor current signal generator, respectively, and an output terminal connected to a driving circuit for the HID lamp; and the driving circuit for driving switches in the HID lamp control circuit.
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申请公布号 |
US2013020959(A1) |
申请公布日期 |
2013.01.24 |
申请号 |
US201113339063 |
申请日期 |
2011.12.28 |
申请人 |
DELTA ELECTRONICS (SHANGHAI) CO., LTD.;ZHANG QI;ZHANG WEIQIANG;YING JIANPING |
发明人 |
ZHANG QI;ZHANG WEIQIANG;YING JIANPING |
分类号 |
H05B41/36 |
主分类号 |
H05B41/36 |
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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