发明申请
- 专利标题: Resonant Switching Power Supply Device
- 专利标题(中): 谐振开关电源装置
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申请号: US11579128申请日: 2005-04-20
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公开(公告)号: US20080024094A1公开(公告)日: 2008-01-31
- 发明人: Hideki Nishihara , Akeyuki Komatsu
- 申请人: Hideki Nishihara , Akeyuki Komatsu
- 申请人地址: JP Kadoma-shi, Osaka 571-8501
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JP Kadoma-shi, Osaka 571-8501
- 优先权: JP2004-138228 20040507
- 国际申请: PCT/JP05/07559 WO 20050420
- 主分类号: G05F1/46
- IPC分类号: G05F1/46
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.
公开/授权文献
- US07446512B2 Resonant switching power supply device 公开/授权日:2008-11-04