发明名称 |
Commutation detection apparatus and method |
摘要 |
A method and apparatus for use in conjunction with a power conversion system employing a plurality of switching elements for controlling the electrical power supplied to a load from a source includes the sensing of the instantaneous voltage furnished to the load and providing a signal representing the time derivative of the sensed voltage. The derivative signal thus developed is compared with predetermined reference values to develop output signals which are logically combined to provide a final signal representative of the instant in time at which one of the switching elements is commutated (turned off).
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申请公布号 |
US4494182(A) |
申请公布日期 |
1985.01.15 |
申请号 |
US19830458109 |
申请日期 |
1983.01.14 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
BRACKMAN, JR., WILLIAM D. |
分类号 |
H02M1/08;H02M7/155;(IPC1-7):H02M1/08 |
主分类号 |
H02M1/08 |
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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