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公开(公告)号:US09337664B2
公开(公告)日:2016-05-10
申请号:US13250783
申请日:2011-09-30
CPC分类号: H02J50/12 , H02J5/005 , H02J7/025 , H02J50/20 , H02M3/1582
摘要: Exemplary embodiments are directed to wireless power receivers. A device may include a power converter configured to receive an input voltage. The device may further include circuitry configured to limit a pulse width modulation duty cycle of the power converter to prevent the input voltage from dropping below a threshold voltage.
摘要翻译: 示例性实施例涉及无线功率接收器。 设备可以包括被配置为接收输入电压的功率转换器。 该装置还可以包括被配置为限制功率转换器的脉冲宽度调制占空比以防止输入电压降至阈值电压以下的电路。
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公开(公告)号:US20130043951A1
公开(公告)日:2013-02-21
申请号:US13436650
申请日:2012-03-30
IPC分类号: H03G3/20
CPC分类号: H02J50/80 , H01F38/14 , H02J50/12 , H02J50/40 , H02J50/60 , H03F1/523 , H03F3/2176 , H03F3/245
摘要: Systems, methods and apparatus are disclosed for amplifiers for wireless power transfer. In one aspect a method is provided for controlling operation of an amplifier, such as a class E amplifier. The method may include monitoring an output of the amplifier. The method may further include adjusting a timing of an enabling switch of the amplifier based on the output of the amplifier.
摘要翻译: 公开了用于无线功率传输的放大器的系统,方法和装置。 在一个方面,提供了一种用于控制诸如E类放大器的放大器的操作的方法。 该方法可以包括监视放大器的输出。 该方法还可以包括基于放大器的输出来调整放大器的使能开关的定时。
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公开(公告)号:US20110124305A1
公开(公告)日:2011-05-26
申请号:US12916352
申请日:2010-10-29
IPC分类号: H04W88/02
CPC分类号: H04B5/0037 , H02J7/025 , H02J17/00 , H02J50/12 , H02J50/80 , H03F1/0211 , H03F3/24 , H03F2200/15 , H03F2200/321 , H03F2203/21193
摘要: Exemplary embodiments are directed to forward link signaling. A method may include modulating an input bias signal of a power amplifier according to data to be transmitted on a wireless power transmit signal. The method may further include modulating an amplitude of the wireless power transmit signal generated by the power amplifier in response to the modulated input bias signal.
摘要翻译: 示例性实施例涉及前向链路信令。 一种方法可以包括根据要在无线功率发射信号上发送的数据来调制功率放大器的输入偏置信号。 该方法可以进一步包括响应于调制的输入偏置信号来调制由功率放大器产生的无线功率发射信号的幅度。
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公开(公告)号:US20110053500A1
公开(公告)日:2011-03-03
申请号:US12778028
申请日:2010-05-11
申请人: Paolo Menegoli , Linda S. Irish
发明人: Paolo Menegoli , Linda S. Irish
IPC分类号: H04B5/00
CPC分类号: H02J50/20 , H02J5/005 , H02J7/025 , H04B5/0037
摘要: Exemplary embodiments are directed to wireless power transfer. A receiver with a receive antenna couples with near field radiation in a coupling-mode region. The receiver generates an RF signal at a resonant frequency responsive to the near field radiation. A de-tuning circuit generates a variable impedance responsive to a control signal to modify the RF signal to a smaller amplitude or to a different resonant frequency. A rectifier converts the modified RF signal to a DC signal. A comparator creates a feedback loop by generating the control signal responsive to comparing the DC signal to a reference voltage. The de-tuning circuit may operate in digital mode or in linear mode with the feedback. An impedance element may be coupled to the de-tuning circuit to generate a voltage proportional to a current through the de-tuning circuit. The proportional voltage is rectified to a receive signal with information sent from a transmitter.
摘要翻译: 示例性实施例涉及无线功率传输。 具有接收天线的接收机与耦合模式区域中的近场辐射耦合。 接收机以响应于近场辐射的谐振频率产生RF信号。 解调电路响应于控制信号产生可变阻抗,以将RF信号修改到更小的振幅或不同的谐振频率。 整流器将修改的RF信号转换为DC信号。 响应于将DC信号与参考电压进行比较,产生控制信号的比较器产生反馈回路。 解调电路可以以数字模式或以反馈的线性模式操作。 阻抗元件可以耦合到去调谐电路以产生与通过去调谐电路的电流成比例的电压。 比例电压被整流为具有从发射机发送的信息的接收信号。
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公开(公告)号:US20120153742A1
公开(公告)日:2012-06-21
申请号:US13273074
申请日:2011-10-13
申请人: Kevin D. Lee , Zhen Ning Low , Linda S. Irish
发明人: Kevin D. Lee , Zhen Ning Low , Linda S. Irish
IPC分类号: H02J17/00
摘要: Exemplary embodiments are directed to wireless power communication. In one aspect a wireless power receiver configured to receive wireless power from a wireless power transmitter is provided. The wireless power receiver includes a switchable element configured to couple a receive coil to a ground voltage. The wireless power receiver further includes a detector coupled to the receive coil and configured to detect an externally generated pulse.
摘要翻译: 示例性实施例涉及无线电力通信。 在一个方面,提供了一种被配置为从无线电力发射器接收无线电力的无线电力接收器。 无线电力接收器包括可配置成将接收线圈耦合到接地电压的可切换元件。 无线电力接收器还包括耦合到接收线圈并被配置为检测外部产生的脉冲的检测器。
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公开(公告)号:US09048748B2
公开(公告)日:2015-06-02
申请号:US13455910
申请日:2012-04-25
申请人: Linda S. Irish
发明人: Linda S. Irish
摘要: Systems, methods and apparatus are disclosed for broadband AC to DC conversion. In one aspect, a power conversion apparatus for providing direct current (DC) based at least in part on an alternating current is provided. The power conversion apparatus includes a first rectifier circuit configured to rectify the alternating current to a first direct current. The power conversion apparatus further includes an averaging circuit configured to average the first direct current received from the first rectifier circuit and to provide a second direct current. The power conversion apparatus further includes a second rectifier circuit configured to rectify the alternating current to a third direct current. The direct current is derived from the second direct current and the third direct current.
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公开(公告)号:US08736368B2
公开(公告)日:2014-05-27
申请号:US13436650
申请日:2012-03-30
CPC分类号: H02J50/80 , H01F38/14 , H02J50/12 , H02J50/40 , H02J50/60 , H03F1/523 , H03F3/2176 , H03F3/245
摘要: Systems, methods and apparatus are disclosed for amplifiers for wireless power transfer. In one aspect a method is provided for controlling operation of an amplifier, such as a class E amplifier. The method may include monitoring an output of the amplifier. The method may further include adjusting a timing of an enabling switch of the amplifier based on the output of the amplifier.
摘要翻译: 公开了用于无线功率传输的放大器的系统,方法和装置。 在一个方面,提供了一种用于控制诸如E类放大器的放大器的操作的方法。 该方法可以包括监视放大器的输出。 该方法还可以包括基于放大器的输出来调整放大器的使能开关的定时。
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公开(公告)号:US08704484B2
公开(公告)日:2014-04-22
申请号:US12959253
申请日:2010-12-02
申请人: Raymond K. Rosik , Pengfei Li , Linda S. Irish
发明人: Raymond K. Rosik , Pengfei Li , Linda S. Irish
IPC分类号: H02J7/00
CPC分类号: H02J7/0091 , H01M10/443 , H01M10/486 , H02J5/00 , H02J7/0031 , H02J7/0055 , H02J7/02 , H02J7/025 , H02J50/12 , H02J50/20 , H04B5/0037 , H04B5/0043
摘要: Exemplary embodiments are directed to an electronic device for enabling a temperature of a battery unit to be sensed with a wired power charger or a wireless power. A device may include a wireless power receiver and a wired charging module operably coupled to the wireless power receiver. The device may also include an interface configured to couple to a battery unit and for selectively enabling one of the wireless power receiver and the wired charging module to determine a temperature of the battery unit.
摘要翻译: 示例性实施例涉及一种能够利用有线电力充电器或无线电力来感测电池单元的温度的电子设备。 设备可以包括无线电力接收器和可操作地耦合到无线电力接收器的有线充电模块。 该设备还可以包括被配置为耦合到电池单元并且用于选择性地使无线电力接收器和有线充电模块中的一个确定电池单元的温度的接口。
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公开(公告)号:US08559873B2
公开(公告)日:2013-10-15
申请号:US12916352
申请日:2010-10-29
CPC分类号: H04B5/0037 , H02J7/025 , H02J17/00 , H02J50/12 , H02J50/80 , H03F1/0211 , H03F3/24 , H03F2200/15 , H03F2200/321 , H03F2203/21193
摘要: Exemplary embodiments are directed to forward link signaling. A method may include modulating an input bias signal of a power amplifier according to data to be transmitted on a wireless power transmit signal. The method may further include modulating an amplitude of the wireless power transmit signal generated by the power amplifier in response to the modulated input bias signal.
摘要翻译: 示例性实施例涉及前向链路信令。 一种方法可以包括根据要在无线功率发射信号上发送的数据来调制功率放大器的输入偏置信号。 该方法可以进一步包括响应于调制的输入偏置信号来调制由功率放大器产生的无线功率发射信号的幅度。
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公开(公告)号:US20120155136A1
公开(公告)日:2012-06-21
申请号:US13250783
申请日:2011-09-30
CPC分类号: H02J50/12 , H02J5/005 , H02J7/025 , H02J50/20 , H02M3/1582
摘要: Exemplary embodiments are directed to wireless power receivers. A device may include a power converter configured to receive an input voltage. The device may further include circuitry configured to limit a pulse width modulation duty cycle of the power converter to prevent the input voltage from dropping below a threshold voltage.
摘要翻译: 示例性实施例涉及无线功率接收器。 设备可以包括被配置为接收输入电压的功率转换器。 该装置还可以包括被配置为限制功率转换器的脉冲宽度调制占空比以防止输入电压降至阈值电压以下的电路。
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