公开(公告)号：US5109162A

公开(公告)日：1992-04-28

申请号：US521214

申请日：1990-05-09

申请人： Daniel S. Koch ,  William H. Lueckenbach ,  Daniel C. Wood

发明人： Daniel S. Koch ,  William H. Lueckenbach ,  Daniel C. Wood

IPC分类号： H02H9/04 ,  H02H11/00

CPC分类号： H02H11/003 ,  H02H9/047 ,  Y10S320/15 ,  Y10T307/839

摘要： The subject invention provides a coil driver circuit having protection against a reverse-polarity battery connection and is suitable for use in such control modules. The driver circuit controllably actuates N coils in response to control signals supplied by the control module. The driver circuit includes N control switches, each coupled in series between a first terminal of an associated one of the coils and a first common junction. The first common junction is normally connected to a positive reference terminal of the electrical power source. The control switches are adapted to controllably connect the coil first terminals to the power source positive reference terminal in response to externally supplied control signal. The coils have second terminals connected at a second common junction, and the second common junction is normally connected to a negative reference terminal of said power source. N flyback diodes, each having a cathode connected to a respective coil first terminal and an anode connected to a third common junction. The third common junction is normally connected to the power source negative reference terminal. A circuit is provided for sensing a reverse-polarity battery connection and responsively disconnecting the diodes from the third junction.

摘要翻译： 本发明提供一种线圈驱动器电路，其具有防止反极性电池连接的保护，并且适用于这种控制模块。 驱动电路响应控制模块提供的控制信号可控制地驱动N个线圈。 驱动器电路包括N个控制开关，每个控制开关串联耦合在相关联的一个线圈的第一端子和第一公共接头之间。 第一公共端通常连接到电源的正参考端。 控制开关适于响应于外部提供的控制信号将线圈第一端子可控地连接到电源正基准端子。 线圈具有在第二公共接头处连接的第二端子，并且第二公共端通常连接到所述电源的负参考端子。 N个反激二极管，每个具有连接到相应的线圈第一端子的阴极和连接到第三公共接头的阳极。 第三个公共端通常连接到电源负参考端。 提供用于感测反极性电池连接并且响应地将二极管从第三连接处断开的电路。