发明名称 |
Multiphase clamp coupled-buck converter and magnetic integration |
摘要 |
Voltage regulation, transient response and efficiency of a voltage regulator module (VRM) is improved where short duty cycles are necessitated by large differentials of input and output voltage by including at least one clamping of a tap of an inductance in series with an output of each of a plurality of parallel branches or phases which are switched in a complementary fashion or providing coupling between inductors of respective phases. Such coupling between inductors is achieved in a small module with an integrated magnetic structure. Reduced component counts are achieved while deriving built-in input and output filters. Principals of the invention can be extended to isolation applications and push-pull forward converts, in particular. A lossless clamping circuit is also provided allowing spike currents to be suppressed while returning power to the output of the VRM.
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申请公布号 |
US6784644(B2) |
申请公布日期 |
2004.08.31 |
申请号 |
US20020079819 |
申请日期 |
2002.02.22 |
申请人 |
VIRGINIA TECH INTELLECTUAL PROPERTIES, INC. |
发明人 |
XU PENG;YAO KAIWEI;LEE FRED C.;YE MAO;WEI JIA |
分类号 |
H02M3/158;(IPC1-7):G05F1/613;H02H7/122 |
主分类号 |
H02M3/158 |
代理机构 |
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主权项 |
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地址 |
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