发明名称 |
Soft Switching DC/DC Converters and Methods |
摘要 |
A soft switching apparatus comprises an energy recovery channel formed by two diodes in series connection and a resonant tank formed by an inductor and a capacitor. The soft switching apparatus is coupled to the primary side of a bridge converter. An energy transfer process during L-C resonance helps to reduce the amplitude of the current flowing through the inductor in a freewheeling period. Furthermore, the soft switching apparatus can help to reduce the voltage stress across the secondary switching devices as well as the shoot-through currents flowing through the secondary switching devices, and thus enabling the reduction or elimination of dead time in a secondary synchronous rectifier control scheme.
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申请公布号 |
US2012147629(A1) |
申请公布日期 |
2012.06.14 |
申请号 |
US20100964925 |
申请日期 |
2010.12.10 |
申请人 |
MAO HENGCHUN;FU DIANBO;HOU ZHAOZHENG;LIU XUJUN;CAI BING;FUTUREWEI TECHNOLOGIES, INC. |
发明人 |
MAO HENGCHUN;FU DIANBO;HOU ZHAOZHENG;LIU XUJUN;CAI BING |
分类号 |
H02M3/337 |
主分类号 |
H02M3/337 |
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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