发明名称 |
Resonant switching power supply device |
摘要 |
For the purpose of providing a resonant switching power supply device having a wide output voltage variable range by changing its switching frequency, the resonance circuit thereof comprises a switching transformer, a first resonance section connected in series with the switching transformer, and a second resonance section connected in parallel with the switching transformer, wherein the resonance frequency characteristic in the case that the DC load current is large is formed using the series-connected devices of the first resonance section, and the resonance frequency characteristic in the case that the DC load current is small is formed using the first resonance section, the second resonance capacitor of the second resonance section and the switching transformer. |
申请公布号 |
US7446512(B2) |
申请公布日期 |
2008.11.04 |
申请号 |
US20060579128 |
申请日期 |
2006.11.01 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
NISHIHARA HIDEKI;KOMATSU AKEYUKI |
分类号 |
G05F1/652;G05F1/10;G05F1/13;G05F1/40;G05F1/656;G05F3/00;H02H7/122;H02J3/12;H02M3/24;H02M3/28;H02M3/315;H02M3/335;H02M3/337;H02M7/04;H02M7/44;H02M7/757 |
主分类号 |
G05F1/652 |
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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