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1. 发明授权

US5963441A Alternating current rectifier bridge and system for measuring average current per bridge segment 有权
标题翻译：用于测量每个桥段的平均电流的交流整流桥和系统
公开(公告)号：US5963441A
公开(公告)日：1999-10-05
申请号：US146690
申请日：1998-09-03
申请人： Irving A. Gibbs , C. Allan Morse , Rolando F. Martinez
发明人： Irving A. Gibbs , C. Allan Morse , Rolando F. Martinez
IPC分类号： H02M7/17 , H02M7/155
CPC分类号： H02M7/17 , H02M2001/0009
摘要： A three-phase controlled rectifier bridge for converting alternating current to direct current includes six segments for each of the positive and negative polarities of each of three AC phases. Each of the segments has a semiconductor controlled rectifier element responsive to a control signal to control current conduction within the segment. A conduction monitor, which is provided for each of the AC phases, monitors a corresponding one of the AC phases to provide a conduction monitor signal. A first shunt current sensor senses current of the segments for the positive polarity of the AC phases and provides a first current signal. A second shunt current sensor senses current of the segments for the negative polarity of the AC phases and provides a second current signal. A control and monitoring circuit has outputs which output the control signals to the segments to control current conduction within the segments, and a microprocessor-based firmware routine which employs the conduction monitor signals and the first and second current signals to determine an average current for each of the segments.
摘要翻译：用于将交流电转换为直流电的三相可控整流桥包括用于三个AC相中的每一个的正负极性中的每一个的六个段。每个段具有响应于控制信号的半导体可控整流元件，以控制段内的电流传导。为每个AC相提供的导通监视器监视相应的一个AC相以提供导通监视信号。第一分流电流传感器感测段的电流为交流相位的正极性，并提供第一电流信号。第二分流电流传感器感测用于AC相负极性的段的电流并提供第二电流信号。控制和监视电路具有输出，其将控制信号输出到段以控制段内的电流传导;以及基于微处理器的固件例程，其采用导通监视信号以及第一和第二电流信号来确定每个的细分。

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