发明名称 |
METHOD AND APPARATUS FOR DETECTING A ZERO-VOLTAGE CONDITION ACROSS FOUR QUADRANT SWITCHES |
摘要 |
A method and apparatus for detecting a zero-voltage condition. In one embodiment, the method comprises generating a first current that is proportional to a voltage across a four-quadrant (4Q) switch; generating a reference current, wherein the reference current is equal to a value of the first current when of the voltage across the 4Q switch is at a predefined value; comparing the first current to the reference current; and generating an indication of a zero-voltage condition across the 4Q switch when the first current is less than the reference current.
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申请公布号 |
US2013176032(A1) |
申请公布日期 |
2013.07.11 |
申请号 |
US201213668970 |
申请日期 |
2012.11.05 |
申请人 |
ENPHASE ENERGY, INC.;ENPHASE ENERGY, INC. |
发明人 |
ZIMMANCK DONALD RICHARD |
分类号 |
G01R31/327 |
主分类号 |
G01R31/327 |
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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