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    • 97. 发明授权
    • Single-package power meter
    • 单包功率计
    • US09341686B2
    • 2016-05-17
    • US13882133
    • 2011-10-26
    • James G. DeakInsik JinWeifeng ShenSongsheng Xue
    • James G. DeakInsik JinWeifeng ShenSongsheng Xue
    • G01R33/09G01R21/00G01R21/06G01R22/10G01R15/20
    • G01R33/098G01R15/205G01R21/00G01R21/06G01R22/10
    • A single-package power meter is disclosed for measuring the power consumed by a load connected to an electrical conductor. The power meter is galvanically isolated from the electrical conductor through the use of magnetic sensors or through the combination of magnetic sensors and capacitors. Instantaneous power consumed at the load and other desired parameters are determined by measuring the voltage of the load and current flowing through the electrical conductor. Current is measured using a magnetic sensor to detect the magnetic field associated with the current flowing through the electrical conductor. Voltage is measured by one of two possible techniques involving magnetic sensors to measure the current flowing through a coil connected in parallel with a load, or through the use of a capacitively coupled voltage divider connected in parallel with the load. An application specific integrated circuit is further disclosed that controls the bias currents of the sensors for autoranging purposes and also for computing desired parameters, such as power consumption.
    • 公开了一种用于测量连接到电导体的负载消耗的功率的单封装功率计。 功率计通过使用磁传感器或通过磁传感器和电容器的组合与电导体电隔离。 在负载和其他所需参数下消耗的瞬时功率通过测量负载和电流通过电导体的电流来确定。 使用磁传感器测量电流,以检测与流过电导体的电流相关的磁场。 电压通过涉及磁传感器的两种可能技术之一来测量,以测量流过与负载并联连接的线圈的电流,或通过使用与负载并联连接的电容耦合分压器。 还公开了一种专用集成电路,其控制用于自动量程目的的传感器的偏置电流并且还用于计算期望的参数,例如功率消耗。