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    • 5. 发明授权
    • Modular current sensor and power source
    • 模块化电流传感器和电源
    • US06433981B1
    • 2002-08-13
    • US09475617
    • 1999-12-30
    • David G. FletcherFarshid AttarianEdward E. KimEsteban Santos
    • David G. FletcherFarshid AttarianEdward E. KimEsteban Santos
    • H02H300
    • G01R19/0092H02M2001/0009
    • A modular current sensor and power source unit (10) for duplicating the function of a current transformer is disposed on a conductor (11) of an electrical circuit. Modular current sensor and power source unit (10) includes a current transformer (12), a power supply circuit (14), a current sensor (16), and current source circuit (18). Current transformer (12) provides operating power to power supply circuit (14). Power supply circuit (14) regulates the operating power and provides the regulated operating power to sensor (16) and current source (18). Sensor (16) senses current in phase (11) and provides a signal indicative of the current in phase (11) to current source (18). Current source (18) receives the signal from sensor (16) and drives an output current proportional to this signal to the load circuit via lines (34) and (36). The current output by current source (18) has the attributes of the low power sensor (16) with the ability to provide power to the load circuit.
    • 用于复制电流互感器的功能的模块化电流传感器和电源单元(10)设置在电路的导体(11)上。 模块化电流传感器和电源单元(10)包括电流互感器(12),电源电路(14),电流传感器(16)和电流源电路(18)。 电流互感器(12)向电源电路(14)提供工作电源。 电源电路(14)调节工作功率并向传感器(16)和电流源(18)提供调节的工作功率。 传感器(16)感测同相(11)中的电流,并向电流源(18)提供指示同相(11)中的电流的信号。 电流源(18)从传感器(16)接收信号,并通过线路(34)和(36)将与该信号成比例的输出电流驱动到负载电路。 电流源(18)的电流输出具有能够向负载电路供电的低功率传感器(16)的属性。