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    • 14. 发明申请
    • STAND-ALONE PUMP SHUT-OFF CONTROLLER
    • 独立泵浦关断控制器
    • WO2009089413A1
    • 2009-07-16
    • PCT/US2009/030544
    • 2009-01-09
    • SHURFLO, LLCCARLSON, KevinTRUONG, Quang, Minh
    • CARLSON, KevinTRUONG, Quang, Minh
    • F04B49/00
    • F04B49/02F04B2203/0201
    • Embodiments of the invention provide a stand-alone controller and a method for controlling a pump motor driven by an alternating current source. The stand-alone controller includes a power terminal for connection with the alternating current source and a load terminal for connection with the pump motor. The stand-alone controller further includes an enable switch to form a power line carrying power from the alternating current source to the pump motor. The stand-alone controller can store a first current being drawn through the power line by the pump motor when a control switch is actuated. A state of the enable switch is based on a comparison of the first current to a second current being drawn through the power line by the pump motor.
    • 本发明的实施例提供了一种独立控制器和用于控制由交流电源驱动的泵马达的方法。 独立控制器包括用于与交流电源连接的电源端子和用于与泵电动机连接的负载端子。 独立控制器还包括使能开关以形成从交流电源向泵电动机承载动力的电力线。 当控制开关被致动时,独立控制器可以存储由泵电动机通过电力线吸取的第一电流。 使能开关的状态基于通过泵电动机通过电力线吸取的第一电流与第二电流的比较。