发明名称 |
Self-ballasted fluorescent lamp |
摘要 |
The invention provides a self-ballasted fluorescent lamp provided with a function for operating normally when the self-ballasted fluorescent lamp is inadvertently connected to a lighting fixture provided with a light bulb dimmer if the dimmer is at the maximum level, and with a function for reliably stopping operation of the ballast circuit if the dimmer is in a dimmed state and thereby latch the lamp in an unlit state and protect the ballast circuit. Even if the self-ballasted fluorescent lamp is connected to a power source via a light bulb dimmer, when a current detected by a current detection circuit exceeds a predetermined current value, a stop circuit stops operation of an inverter circuit and latches it in that stopped state in order to maintain the self-ballasted fluorescent lamp in an unlit state.
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申请公布号 |
US6727661(B2) |
申请公布日期 |
2004.04.27 |
申请号 |
US20020238150 |
申请日期 |
2002.09.10 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
KOMINAMI SATOSHI;KURACHI TOSHIAKI;TAKAHASHI KENICHIRO;MIYAZAKI KOJI |
分类号 |
H05B41/285;(IPC1-7):H05B37/02 |
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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