发明名称 |
Unsaturating transformer, an electronic ballast using the transformer, and a self-ballasted |
摘要 |
A power supply apparatus includes a direct current power source having a pair of terminals. First and second switching elements are connected in series between the pair of terminals of the direct current power. A load circuit, which includes a resonance inductance and a resonance capacitance, receives a high-frequency alternating current generated by a switching of the first and second switching elements. An unsaturated transformer has a first winding connected to the load circuit, and a second winding generating an induced voltage in proportion to a current flowing in the load circuit. A drive resonance circuit includes a capacitance, and an inductance of the second winding. The drive resonance circuit produces a resonance output to cause the first and second switching elements to alternately conduct. The power supply may be used in a ballast for a discharge lamp.
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申请公布号 |
US6437516(B2) |
申请公布日期 |
2002.08.20 |
申请号 |
US20010770651 |
申请日期 |
2001.01.29 |
申请人 |
TOSHIBA LIGHTING AND TECHNOLOGY CORPORATION |
发明人 |
HAKUTA SHINYA;OSAKI HAJIME |
分类号 |
H01F30/00;H01F38/08;H02M7/48;H05B41/14;H05B41/24;H05B41/282;(IPC1-7):H05B37/00 |
主分类号 |
H01F30/00 |
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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