发明名称 |
Cold cathode tube power supply |
摘要 |
A power supply for a cold cathode tube has a high voltage module coupled directly to the cold cathode tube, and a power control module that provides a power control signal to the high voltage module via low voltage wiring. The power control module has a circuit that compensates for negative resistance of the ionized gas within the cold cathode tube by adjusting a frequency of the power control signal. The power control module also receives a return of from the cold cathode tube, and varies an illumination intensity of the cold cathode tube using a burst modulation technique, and provides shutdown in the event of a ground fault.
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申请公布号 |
US5814938(A) |
申请公布日期 |
1998.09.29 |
申请号 |
US19960692345 |
申请日期 |
1996.08.05 |
申请人 |
TRANSFOTEC INTERNATIONAL |
发明人 |
BELAND, ROBERT;KAUFMAN, PASCAL |
分类号 |
H05B41/285;H05B41/392;(IPC1-7):H01J23/16 |
主分类号 |
H05B41/285 |
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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