发明名称 |
METHOD OF CONTROLLING CATHODE VOLTAGE WITH LOW LAMP'S ARC CURRENT |
摘要 |
<p>The embodiment disclosed herein relates to systems and methods to provide improvements to power delivery systems employed with lamps in general and fluorescent lamps in particular. In accordance with one exemplary embodiment, cathode current is controlled to a maximum level to quickly bring the cathode temperature up to thermionic emission temperature. After lamp ignition, a cathode voltage reduction circuit is employed to reduce voltage of the external cathode heating. Power is supplied to a power factor correction circuit via an IC, in accordance with a second exemplary embodiment. Finally, a third disclosed embodiment addresses desensitizing the lamp from various deleterious parasitic capacitive effects associated with the power delivery to one or more lamps.</p> |
申请公布号 |
CA2592008(A1) |
申请公布日期 |
2006.07.13 |
申请号 |
CA20052592008 |
申请日期 |
2005.12.21 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
XIONG, WEI;CHEN, TIMOTHY;ROBERTS, BRUCE |
分类号 |
H05B41/28;H05B41/282;H05B41/285;H05B41/295;H05B41/298 |
主分类号 |
H05B41/28 |
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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