发明名称 |
Rare gas fluorescent lamp lighting apparatus |
摘要 |
There is provided a rare gas fluorescent lamp lighting apparatus including: an input power source; a transformer having a rare gas fluorescent lamp connected to the secondary side thereof; a switching element connected in series to the primary side of the transformer; and a drive block to drive the switching element. The drive block includes: a constant voltage circuit to convert the voltage of the input power source into a constant voltage as an output; a constant current circuit to output a charging current according to the voltage of the input power source; a triangular waveform oscillation circuit to increase and decrease oscillation frequency according respectively to an increase and a decrease in a voltage of the input power source; and a comparison circuit to transform a triangular waveform outputted from the triangular waveform oscillation circuit into a rectangular waveform with a predetermined duty ratio as an output.
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申请公布号 |
US7274152(B2) |
申请公布日期 |
2007.09.25 |
申请号 |
US20050195746 |
申请日期 |
2005.08.03 |
申请人 |
MINEBEA CO., LTD. |
发明人 |
SUZUKI SHINICHI;TERADA RYU |
分类号 |
H05B37/02;H02M7/48;H05B41/24 |
主分类号 |
H05B37/02 |
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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