Input parasitic metal detection
    22.
    发明授权

    公开(公告)号:US09524822B2

    公开(公告)日:2016-12-20

    申请号:US14090582

    申请日:2013-11-26

    Abstract: A system and method of controlling inductive power transfer in an inductive power transfer system and a method for designing an inductive power transfer system with power accounting. The method of controlling inductive power transfer including measuring a characteristic of input power, a characteristic of power in the tank circuit, and receiving information from a secondary device. Estimating power consumption based on the measured characteristic of tank circuit power and received information and comparing the measured characteristic of input power, the information from the secondary device, and the estimated power consumption to determine there is an unacceptable power loss. The method for designing an inductive power transfer system with power accounting including changing the distance between a primary side and a secondary side and changing a load of the secondary side. For each distance between the primary side and the secondary side and for each load, measuring a circuit parameter on the primary side in the tank circuit and a circuit parameter on the secondary side during the transfer of contactless energy. The method further including selecting a formula to describe power consumption in the system during the transfer of contactless energy based on coefficients and the circuit parameters, and determining the coefficients using the measured circuit parameters.

    SYSTEM AND METHOD FOR MEASURING VARIABLE IMPEDANCE ELEMENTS IN A WIRELESS SENSOR
    23.
    发明申请
    SYSTEM AND METHOD FOR MEASURING VARIABLE IMPEDANCE ELEMENTS IN A WIRELESS SENSOR 审中-公开
    用于测量无线传感器中可变阻抗元素的系统和方法

    公开(公告)号:US20150123679A1

    公开(公告)日:2015-05-07

    申请号:US14399276

    申请日:2013-03-14

    CPC classification number: G01R27/28 G01R23/00 G06K19/0717 H04B5/0081

    Abstract: A wireless remote sensor (110) that is powered by an inductive transmitter (112) and is configured to produce an oscillating wave that varies based on one or more sensed parameters. The oscillating wave is communicated to the inductive transmitter (112) by reflected impedance, where it can be detected to determine the sensed value(s). In another aspect, the present invention provides a wireless remote sensor with a Wheatstone bridge arrangement having an internal resonant circuit to produce an electromagnetic field indicative of the sensed value. In a third aspect, the present invention provides a wireless remote sensor with optical feedback from a reference circuit and a sensor circuit. In a fourth aspect, the present invention provides a wireless remote temperature sensor having coils printed on a material with a high coefficient of thermal expansion so that the size and/or shape of the coils varies as the temperature increases or decreases.

    Abstract translation: 一种由感应发射器(112)供电并被配置为产生基于一个或多个感测参数而变化的振荡波的无线遥控传感器(110)。 振荡波通过反射阻抗传送到感应发射器(112),在那里可以检测振荡波以确定感测值。 在另一方面,本发明提供了一种具有惠斯通电桥装置的无线遥控传感器,该布置具有内部谐振电路以产生指示感测值的电磁场。 在第三方面,本发明提供一种具有来自参考电路和传感器电路的光学反馈的无线遥控传感器。 在第四方面,本发明提供了一种无线远程温度传感器,其具有印刷在具有高热膨胀系数的材料上的线圈,使得线圈的尺寸和/或形状随着温度的升高或降低而变化。

    WIRELESS POWER CONTROL SYSTEM
    24.
    发明申请
    WIRELESS POWER CONTROL SYSTEM 审中-公开
    无线电源控制系统

    公开(公告)号:US20150035376A1

    公开(公告)日:2015-02-05

    申请号:US14370384

    申请日:2013-01-23

    Abstract: A wireless power transfer component with a selectively adjustable resonator circuit having a Q control subcircuit that varies the Q factor of the resonator circuit to control the amount of power relayed by the resonator circuit. The resonator circuit may be in the wireless power supply, the wireless power receiver, an intermediate resonator or any combination thereof. The resonator circuit may be actively configured based on a feedback circuit. The feedback circuit may sense a characteristic in the secondary circuit or elsewhere and actively operate the control subcircuit based on the sensed characteristic. The feedback circuit may cause the Q control subcircuit to change (reduce or increase) the Q factor when the sensed characteristic crosses a threshold value. The Q control subcircuit may include a variable resistor having a value that can be varied to adjust the Q factor of the resonator circuit.

    Abstract translation: 一种具有可选择性调节的谐振器电路的无线电力传输部件,具有Q控制子电路,其改变谐振器电路的Q因子以控制由谐振器电路中继的功率量。 谐振器电路可以在无线电源,无线电力接收器,中间谐振器或其任何组合中。 谐振器电路可以基于反馈电路被主动配置。 反馈电路可以感测次级电路或别处的特性,并且基于感测的特性主动地操作控制子电路。 当感测到的特性越过阈值时,反馈电路可能导致Q控制子电路改变(减小或增加)Q因子。 Q控制分支电路可以包括具有可以改变以调整谐振器电路的Q因子的值的可变电阻器。

    PRINT MEDIA WITH INDUCTIVE SECONDARY
    25.
    发明申请
    PRINT MEDIA WITH INDUCTIVE SECONDARY 有权
    印刷媒体与电感二次

    公开(公告)号:US20150022980A1

    公开(公告)日:2015-01-22

    申请号:US14370516

    申请日:2013-01-04

    Abstract: An item of print media (30) including an inductive secondary (50) for providing power to a load (32). The inductive secondary is responsive to an electromagnetic flux to generate a time-varying current or voltage therein. The current or voltage induced in the inductive secondary directly or indirectly powers the load to thereby enhance the functionality and/or the appeal of the item of print media without significantly adding to its cost. The load can provide a visual and/or auditory output, and can include an electroluminescent display, an e-ink display, a piezo speaker coil, an electrostatic speaker, an OLED, an LED or an LCD display. Embodiments of the invention can be utilized in connection with a wide variety of print media, including for example books, booklets, pamphlets, labels, magazines, manuals, brochures, maps, charts, posters, journals, newspapers or loose leaf pages.

    Abstract translation: 一种包括用于向负载(32)提供电力的感应次级(50)的打印介质(30)的项目。 电感次级电流响应于电磁通量以在其中产生时变电流或电压。 感应次级中引起的电流或电压直接或间接地为负载供电,从而增强打印介质的功能和/或吸引力,而不会显着增加其成本。 负载可以提供视觉和/或听觉输出,并且可以包括电致发光显示器,电子墨水显示器,压电扬声器线圈,静电扬声器,OLED,LED或LCD显示器。 本发明的实施例可以用于各种各样的打印介质,包括例如书籍,小册子,小册子,标签,杂志,手册​​,小册子,地图,图表,海报,期刊,报纸或散页页。

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