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1.发明申请Systems and Methods of Reduction of Parasitic Losses in a Wireless Power System 有权减少无线电力系统中的寄生虫损失的系统和方法公开(公告)号：US20130307348A1
公开(公告)日：2013-11-21
申请号：US13891168
申请日：2013-05-09
发明人： Eric Gregory Oettinger , Vladimir Alexander Muratov , Ravindra Krishna Patil , Kalyan Siddabattula , William Ford Waters, III
IPC分类号： H01F38/14
摘要： Example embodiments of the systems and methods of reduction of parasitic losses in a wireless power system disclosed herein provide a practical means of accurately estimating parasitic losses in a wireless power transfer system irrespective of coupling. Such systems and methods may be used to generate an equation which predicts parasitic losses in a wireless power system. In an offset case, in which the transmitter and receiver are not directly coupled, losses associated with the recirculating current in the primary LC tank dominate the loss, and the transmitted power may be better estimated by measuring the power inputs, power outputs, and injected losses in a controlled environment; making a mathematical fit to an equation, which from the various power measurements and injected loss, predicts the expected transmitter losses; and then, in an operational environment, using the equation to predict parasitic losses based on the power inputs, power outputs and expected loss equation.
摘要翻译： 在本文公开的无线电力系统中减少寄生损耗的系统和方法的示例性实施例提供了无论耦合如何，无线功率传输系统中的寄生损耗的精确估计的实际手段。 可以使用这样的系统和方法来产生预测无线电力系统中的寄生损耗的方程式。 在偏移情况下，发射器和接收器不直接耦合，主液晶盒中的再循环电流相关的损耗主要是损耗，并且可以通过测量功率输入，功率输出和注入来更好地估计发射功率 受控环境中的损失; 对于从各种功率测量和注入损耗中得出的预期的发射机损耗来计算一个方程的数学拟合。 然后，在操作环境中，使用该方程式来预测基于功率输入，功率输出和预期损耗方程的寄生损耗。
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公开(公告)号：US09939539B2
公开(公告)日：2018-04-10
申请号：US14667880
申请日：2015-03-25
摘要： A wireless power transmitter includes an analog-to-digital converter (ADC) and a controller. The ADC is configured to convert an analog signal associated with a power train to digital values. The controller is configured to cause pulses to be applied to the power train to thereby cause the power train to ring, receive digital values from the ADC acquired while the power train is ringing and after the pulses complete, and, based on an analysis of the digital values of the ringing of the power train, to determine whether a wireless power receiver is present on or near the wireless power transmitter or whether a foreign object is present on the transmitter.
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公开(公告)号：US20150256368A1
公开(公告)日：2015-09-10
申请号：US14665554
申请日：2015-03-23
摘要： One aspect of the present invention includes a bi-phase communication receiver system. The system includes an analog-to-digital converter (ADC) configured to sample a bi-phase modulation signal to generate digital samples of the bi-phase modulation signal. The system also includes a bi-phase signal decoder configured to decode the bi-phase modulation signal based on the digital samples. The system further includes a preamble detector comprising a digital filter configured to evaluate the digital samples to generate an output and to detect a preamble of the bi-phase modulation signal for decoding the bi-phase modulation signal based on the output.
摘要翻译： 本发明的一个方面包括双相通信接收机系统。 该系统包括被配置为对双相调制信号进行采样以生成双相调制信号的数字采样的模数转换器（ADC）。 该系统还包括双相信号解码器，其被配置为基于数字样本对双相调制信号进行解码。 该系统还包括前导码检测器，其包括数字滤波器，该数字滤波器被配置为评估数字采样以产生输出并且检测用于基于输出对双相调制信号进行解码的双相调制信号的前导码。
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公开(公告)号：US20190109739A1
公开(公告)日：2019-04-11
申请号：US16213453
申请日：2018-12-07
摘要： One aspect of the present invention includes a bi-phase communication receiver system. The system includes an analog-to-digital converter (ADC) configured to sample a bi-phase modulation signal to generate digital samples of the bi-phase modulation signal. The system also includes a bi-phase signal decoder configured to decode the bi-phase modulation signal based on the digital samples. The system further includes a preamble detector comprising a digital filter configured to evaluate the digital samples to generate an output and to detect a preamble of the bi-phase modulation signal for decoding the bi-phase modulation signal based on the output.
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公开(公告)号：US20170229926A1
公开(公告)日：2017-08-10
申请号：US15410590
申请日：2017-01-19
CPC分类号： H02J50/80 , H02J50/12 , H02J50/60 , H04B5/0037
摘要： In an example, an integrated circuit includes a communication and control unit. The communication and control unit controls an inverter that applies an alternating current output signal to a transmission coil for reception by a receiver. The communication and control unit causes the inverter to provide a first and second transmit powers to the transmission coil, and the communication unit receives a first and second power received signals from the receiver in response to the first and second transmit powers. The communication and control unit determines a first gain and offset using the first transmit power, the first power. When a third transmit power greater than the second transmit power is transmitted by the transmission coil, the communication and control unit determines a second gain and a second offset using the first transmit power, the first power received signal, the third transmit power and a third power received signal.
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6.发明授权Systems and methods of reduction of parasitic losses in a wireless power system 有权减少无线电力系统中寄生损耗的系统和方法公开(公告)号：US09536656B2
公开(公告)日：2017-01-03
申请号：US13891168
申请日：2013-05-09
发明人： Eric Gregory Oettinger , Vladimir Alexander Muratov , Ravindra Krishna Patil , Kalyan Siddabattula , William Ford Waters, III
摘要： Example embodiments of the systems and methods of reduction of parasitic losses in a wireless power system disclosed herein provide a practical means of accurately estimating parasitic losses in a wireless power transfer system irrespective of coupling. Such systems and methods may be used to generate an equation which predicts parasitic losses in a wireless power system. In an offset case, in which the transmitter and receiver are not directly coupled, losses associated with the recirculating current in the primary LC tank dominate the loss, and the transmitted power may be better estimated by measuring the power inputs, power outputs, and injected losses in a controlled environment; making a mathematical fit to an equation, which from the various power measurements and injected loss, predicts the expected transmitter losses; and then, in an operational environment, using the equation to predict parasitic losses based on the power inputs, power outputs and expected loss equation.
摘要翻译： 在本文公开的无线电力系统中减少寄生损耗的系统和方法的示例性实施例提供了无论耦合如何，无线功率传输系统中的寄生损耗的精确估计的实际手段。 可以使用这样的系统和方法来产生预测无线电力系统中的寄生损耗的方程式。 在偏移情况下，发射器和接收器不直接耦合，主液晶盒中的再循环电流相关的损耗主要是损耗，并且可以通过测量功率输入，功率输出和注入来更好地估计发射功率 受控环境中的损失; 对于从各种功率测量和注入损耗中得出的预期的发射机损耗来计算一个方程的数学拟合。 然后，在操作环境中，使用方程式根据功率输入，功率输出和预期损耗方程来预测寄生损耗。
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公开(公告)号：US11356307B2
公开(公告)日：2022-06-07
申请号：US16213453
申请日：2018-12-07
摘要： One aspect of the present invention includes a bi-phase communication receiver system. The system includes an analog-to-digital converter (ADC) configured to sample a bi-phase modulation signal to generate digital samples of the bi-phase modulation signal. The system also includes a bi-phase signal decoder configured to decode the bi-phase modulation signal based on the digital samples. The system further includes a preamble detector comprising a digital filter configured to evaluate the digital samples to generate an output and to detect a preamble of the bi-phase modulation signal for decoding the bi-phase modulation signal based on the output.
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公开(公告)号：US10530196B2
公开(公告)日：2020-01-07
申请号：US15410590
申请日：2017-01-19
摘要： In an example, an integrated circuit includes a communication and control unit. The communication and control unit controls an inverter that applies an alternating current output signal to a transmission coil for reception by a receiver. The communication and control unit causes the inverter to provide a first and second transmit powers to the transmission coil, and the communication unit receives a first and second power received signals from the receiver in response to the first and second transmit powers. The communication and control unit determines a first gain and offset using the first transmit power, the first power. When a third transmit power greater than the second transmit power is transmitted by the transmission coil, the communication and control unit determines a second gain and a second offset using the first transmit power, the first power received signal, the third transmit power and a third power received signal.
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公开(公告)号：US10187231B2
公开(公告)日：2019-01-22
申请号：US14665554
申请日：2015-03-23
摘要： One aspect of the present invention includes a bi-phase communication receiver system. The system includes an analog-to-digital converter (ADC) configured to sample a bi-phase modulation signal to generate digital samples of the bi-phase modulation signal. The system also includes a bi-phase signal decoder configured to decode the bi-phase modulation signal based on the digital samples. The system further includes a preamble detector comprising a digital filter configured to evaluate the digital samples to generate an output and to detect a preamble of the bi-phase modulation signal for decoding the bi-phase modulation signal based on the output.
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公开(公告)号：US09818530B2
公开(公告)日：2017-11-14
申请号：US13743027
申请日：2013-01-16
摘要： A system for wireless power transfer is provided. The system includes a monitoring function to monitor control parameters and an input source that supplies power to a wireless power transmitter, wherein the wireless power transmitter operates with a wireless power receiver to supply a charging current to a load. A controller can be configured to receive the control parameters from the monitoring function and to control an adjustable operating point for the wireless power transmitter which controls the charging current delivered to the load via the wireless power receiver, wherein the controller commands a maximum power operating point for the wireless power transmitter when the input source is detected at or above a predetermined threshold and commands a reduced power operating point for the wireless power transmitter when the input source to the wireless power transmitter is detected below the predetermined threshold.
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