发明名称 |
Electronic ballast and controlling method thereof |
摘要 |
An improved electronic ballast for providing an electrical energy to a fluorescent lamp circuit is provided. It includes a pre-heating inductor; a first resonant circuit connected to the pre-heating inductor in parallel and coupled to the fluorescent lamp circuit for pre-heating the fluorescent lamp circuit according to a first resonant frequency; a second resonant circuit coupled to the fluorescent lamp circuit for igniting the fluorescent lamp circuit according to a second resonant frequency; and a driving circuit coupled to the second resonant circuit for continuously providing the electrical energy to the first resonant circuit and the second resonant circuit respectively according to the first resonant frequency and the second resonant frequency.
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申请公布号 |
US2005179403(A1) |
申请公布日期 |
2005.08.18 |
申请号 |
US20040862446 |
申请日期 |
2004.06.08 |
申请人 |
HU XIAO-JU;LIU CHEN-YANG;YING JIAN-PING |
发明人 |
HU XIAO-JU;LIU CHEN-YANG;YING JIAN-PING |
分类号 |
H05B41/295;(IPC1-7):H05B37/02 |
主分类号 |
H05B41/295 |
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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