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1. 发明授权

US09685816B2 Power receiver for wireless charging system 有权
公开(公告)号：US09685816B2
公开(公告)日：2017-06-20
申请号：US14887289
申请日：2015-10-19
申请人： FREESCALE SEMICONDUCTOR, INC.
发明人： Zhendong Fei , Xiang Gao , Chongli Wu
IPC分类号： H02J5/00 , H02J7/02 , H02J50/80
CPC分类号： H02J7/025 , H02J50/80
摘要： A power receiver for a wireless power transmission system that includes a power transmitter has input circuitry that converts power received from the power transmitter into an input signal. A regulator regulates the input signal to generate a regulated output signal based on a current reference signal and a voltage reference signal, and a load receives the regulated output signal. The regulator controls at least one of the current reference signal and the voltage reference signal to control power loss within the regulator. In one embodiment, the regulator globally controls the voltage of the rectified input signal and locally controls the current reference signal to limit power loss in the regulator as well as meet system load requirements.

2. 发明申请

US20160336785A1 BIDIRECTIONAL COMMUNICATION DEMODULATION FOR WIRELESS CHARGING SYSTEM 有权
标题翻译：无线充电系统双向通信解调
公开(公告)号：US20160336785A1
公开(公告)日：2016-11-17
申请号：US14942977
申请日：2015-11-16
申请人： FREESCALE SEMICONDUCTOR, INC.
发明人： Xiang Gao , Zhendong Fei , Wanfu Ye
IPC分类号： H02J7/02 , H02J7/04
CPC分类号： H02J50/80 , H02J7/00 , H02J7/0004 , H02J7/025
摘要： A system and method for demodulating a wireless power signal onto which binary data has been modulated involves processing the wireless power signal with analog circuitry to produce a modified power signal in accordance with the type of demodulation used, periodically capturing digital samples of the modified power signal to produce a series of digital samples, applying, with an MCU, at least two digital filtering algorithms to the digital samples to determine transitions associated with the modulation, and recovering, with the MCU, the binary data as a function of the determined transitions. The demodulator is applicable to bidirectional power transfer capable devices and includes algorithms that can be applied similarly to both ASK and FSK demodulations with little or no modification.
摘要翻译：用于解调已经调制了二进制数据的无线功率信号的系统和方法包括用模拟电路处理无线功率信号，以根据所使用的解调器的类型产生修改的功率信号，周期性地捕获修改的功率信号的数字样本以产生一系列数字样本，使用MCU至少将两个数字滤波算法应用于数字采样，以确定与调制相关的转换，并且利用MCU以二进制数据作为所确定的转换的函数来恢复二进制数据。解调器适用于具有双向功率传输能力的设备，并且包括可以很少或没有修改的类似于ASK和FSK解调的算法。

3. 发明授权

US09960643B2 Bidirectional communication demodulation for wireless charging system 有权
公开(公告)号：US09960643B2
公开(公告)日：2018-05-01
申请号：US14942977
申请日：2015-11-16
申请人： FREESCALE SEMICONDUCTOR, INC.
发明人： Xiang Gao , Zhendong Fei , Wanfu Ye
IPC分类号： H02J50/80 , H02J7/00 , H02J7/02
CPC分类号： H02J50/80 , H02J7/00 , H02J7/0004 , H02J7/025
摘要： A system and method for demodulating a wireless power signal onto which binary data has been modulated involves processing the wireless power signal with analog circuitry to produce a modified power signal in accordance with the type of demodulation used, periodically capturing digital samples of the modified power signal to produce a series of digital samples, applying, with an MCU, at least two digital filtering algorithms to the digital samples to determine transitions associated with the modulation, and recovering, with the MCU, the binary data as a function of the determined transitions. The demodulator is applicable to bidirectional power transfer capable devices and includes algorithms that can be applied similarly to both ASK and FSK demodulations with little or no modification.

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