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发明名称
Zero voltage crossover detector for polyphase systems.
摘要
申请公布号
EP0372240(B1)
申请公布日期
1994.03.02
申请号
EP19890120598
申请日期
1989.11.07
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
SHIN, CHARLES H.;WOODWORTH, GEORGE K.
分类号
G01R19/165;G01R19/175;(IPC1-7):H02J3/38;H02J9/06
主分类号
G01R19/165
代理机构
代理人
主权项
地址
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