SYNCHRONOUS-RECTIFICATION TYPE CONTROL FOR DIRECT CURRENT MOTORS AND METHOD OF MAKING
    1.
    发明申请
    SYNCHRONOUS-RECTIFICATION TYPE CONTROL FOR DIRECT CURRENT MOTORS AND METHOD OF MAKING 审中-公开
    直流电机的同步整流式控制及其制作方法

    公开(公告)号:WO1993020611A2

    公开(公告)日:1993-10-14

    申请号:PCT/CA1993000131

    申请日:1993-03-30

    Abstract: A MOSFET (50, 51) control topology and a physical structure for a motor control which provide a more efficient and economic DC motor control are disclosed. The control topology introduces a synchronous-rectification technique wherein free-wheel diodes are replaced with MOSFET (50, 51) devices that are switched on and off by a logic circuit (38) so that they are conductive for commuting motor current during periods that the motor (24) current supply is switched off. The physical structure and method of assembling a DC motor control (33) eliminate time consuming assembly techniques while ensuring effective waste heat exchange between electronic components (46, 50, 51) and a heat sink (96) of the control (33) by providing quick-install spring retainers (110) for urging the components (46, 50, 51) into heat conducting contact with the heat sink (96). The physical structure also provides for high density packing of electronic components (46, 50, 51) in the control (33).

    Abstract translation: 公开了一种用于提供更有效和经济的DC电动机控制的电动机控制的拓扑结构和物理结构的MOSFET(50,51)。 控制拓扑结构引入了一种同步整流技术,其中后轮二极管由被逻辑电路(38)接通和断开的MOSFET(50,51)器件替代,使得它们在通过电机电流 电机(24)电源关闭。 组装直流电动机控制(33)的物理结构和方法消除了耗时的组装技术,同时通过提供控制(33)的电子部件(46,50,51)和散热器(96)之间的有效的余热交换来确保 快速安装弹簧保持器(110),用于推动部件(46,50,51)与散热片(96)导热接触。 物理结构还提供了控制(33)中的电子部件(46,50,51)的高密度包装。

    AN OPTIMAL DC MOTOR/CONTROLLER CONFIGURATION
    2.
    发明申请
    AN OPTIMAL DC MOTOR/CONTROLLER CONFIGURATION 审中-公开
    最佳直流电动机/控制器配置

    公开(公告)号:WO1993019949A1

    公开(公告)日:1993-10-14

    申请号:PCT/CA1993000132

    申请日:1993-03-30

    Abstract: Optimal constructions for two motor/controller configurations (20) are disclosed. The controller structure includes an H-bridge (48) for controlling field current using synchronous-rectification of MOSFET (58, 60, 62, 64) devices, and a circuit for chopping the armature (36) current using synchronous-rectification of MOSFET (44, 46) devices arranged in a half bridge. The controller (20) may be configured with a series-wound or a separately excited DC traction motor. In the series-wound motor/controller configuration, the field (38) and the armature (36) current are separately controlled. In the separately excited motor/controller configuration, the field (38) of the motor is preferably wound so that the rated field current is achieved at about 20 % of the rated battery voltage. This provides a separately excited motor in which the field current can be boosted by a factor of 5 to achieve high start-up and low speed torques which match the torque outputs of a series-wound motor under similar operating conditions.

    Abstract translation: 公开了两个电机/控制器配置(20)的最佳结构。 该控制器结构包括使用MOSFET(58,60,62,64)器件的同步整流来控制励磁电流的H桥(48),以及使用MOSFET的同步整流来切断电枢(36)电流的电路( 44,46)设置在半桥中的设备。 控制器(20)可以配置有串联缠绕或单独激励的直流牵引马达。 在串联电动机/控制器配置中,分别控制磁场(38)和电枢(36)电流。 在单独激励的电动机/控制器配置中,电机的磁场(38)优选地被卷绕,使得额定励磁电流达到额定电池电压的约20%。 这提供了一个单独激励的电动机,其中励磁电流可以提升5倍,以实现与类似工作条件下的串联电动机的转矩输出相匹配的高启动和低速转矩。

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