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公开(公告)号：US09548768B2
公开(公告)日：2017-01-17
申请号：US14955461
申请日：2015-12-01
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat
CPC classification number: H04B1/0064 , H04B1/0057 , H04B1/40 , H04W88/06
Abstract: Radio frequency (RF) front end circuitry includes first RF multiplexer circuitry and second RF multiplexer circuitry. The first RF multiplexer circuitry is a quadplexer, while the second RF multiplexer is a triplexer. The RF front end circuitry is configured to support the transmission and reception of signals within a first operating band, a second operating band, and a third operating band. Further, the RF front end circuitry is configured to support carrier aggregation configurations between the first operating band and the third operating band and the second operating band and the third operating band.
Abstract translation: 射频（RF）前端电路包括第一RF多路复用器电路和第二RF多路复用器电路。 第一RF多路复用器电路是四路复用器，而第二RF复用器是三工器。 RF前端电路被配置为支持第一工作频带，第二工作频带和第三操作频带内的信号的发送和接收。 此外，RF前端电路被配置为支持第一操作频带和第三操作频带以及第二操作频带和第三操作频带之间的载波聚合配置。
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公开(公告)号：US09450480B2
公开(公告)日：2016-09-20
申请号：US13661227
申请日：2012-10-26
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat
Abstract: This disclosure relates generally to radio frequency (RF) switching converters and RF amplification devices that use RF switching converters. In one embodiment, an RF switching converter includes a switching circuit operable to receive a power source voltage, a switching controller configured to switch the switching circuit so that the switching circuit generates a pulsed output voltage from the power source voltage, and an RF filter configured to convert the pulsed output voltage into a supply voltage, wherein the RF filter includes a decoupling capacitor configured to receive the supply voltage. The switching controller is configured to generate a ripple correction current that is injected into the decoupling capacitor such that the decoupling capacitor filters the ripple correction current. The decoupling capacitor outputs the ripple correction current such that the ripple correction current reduces a ripple variation in a supply current level of a supply current resulting from the supply voltage.
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公开(公告)号：US09444407B2
公开(公告)日：2016-09-13
申请号：US14254215
申请日：2014-04-16
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat , Baker Scott , Michael R. Kay
Abstract: Power supply circuitry, which includes a parallel amplifier and a parallel amplifier power supply, is disclosed. The power supply circuitry operates in either an average power tracking mode or an envelope tracking mode. The parallel amplifier power supply provides a parallel amplifier power supply signal. The parallel amplifier regulates an envelope power supply voltage based on an envelope power supply control signal using the parallel amplifier power supply signal, which provides power for amplification. During the envelope tracking mode, the envelope power supply voltage at least partially tracks an envelope of an RF transmit signal and the parallel amplifier power supply signal at least partially tracks the envelope power supply control signal. During the average power tracking mode, the envelope power supply voltage does not track the envelope of the RF transmit signal.
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104.发明授权Output impedance compensation of a pseudo-envelope follower power management system 有权伪包络跟随器电源管理系统的输出阻抗补偿公开(公告)号：US09401678B2
公开(公告)日：2016-07-26
申请号：US14151167
申请日：2014-01-09
Applicant: RF Micro Devices, Inc.
Inventor： Michael R. Kay , Nadim Khlat
IPC: H03F3/04 , H03G3/00 , H03F1/02 , H02M3/07 , H03F1/42 , H03F3/195 , H03F3/24 , H03F3/30 , H03F3/45 , H03F3/50 , H03F3/72
CPC classification number: H03F1/02 , H02M3/07 , H03F1/0244 , H03F1/025 , H03F1/0277 , H03F1/42 , H03F3/195 , H03F3/245 , H03F3/3022 , H03F3/45475 , H03F3/505 , H03F3/72 , H03F2200/102 , H03F2200/204 , H03F2200/36 , H03F2200/375 , H03F2200/451 , H03F2200/555 , H03F2200/78 , H03F2203/45526 , H03F2203/45544 , H03F2203/45594 , H03F2203/45694 , H03F2203/45712 , H03F2203/45718 , H03F2203/7221
Abstract: A switch mode power supply converter, a parallel amplifier, and a parallel amplifier output impedance compensation circuit are disclosed. The switch mode power supply converter provides a switching voltage and generates an estimated switching voltage output, which is indicative of the switching voltage. The parallel amplifier generates a power amplifier supply voltage at a power amplifier supply output based on a combination of a VRAMP signal and a high frequency ripple compensation signal. The parallel amplifier output impedance compensation circuit provides the high frequency ripple compensation signal based on a difference between the VRAMP signal and the estimated switching voltage output.
Abstract translation: 公开了开关模式电源转换器，并联放大器和并联放大器输出阻抗补偿电路。 开关模式电源转换器提供开关电压并产生表示开关电压的估计开关电压输出。 并联放大器基于VRAMP信号和高频纹波补偿信号的组合在功率放大器电源输出端产生功率放大器电源电压。 并联放大器输出阻抗补偿电路根据VRAMP信号和估计的开关电压输出之间的差异提供高频纹波补偿信号。
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公开(公告)号：US20160191014A1
公开(公告)日：2016-06-30
申请号：US14757651
申请日：2015-12-23
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat , Jean-Frederic Chiron , Marcus Granger-Jones , Andrew F. Folkmann , Robert Aigner
CPC classification number: H03H9/542 , H01Q1/50 , H03H9/568 , H03H9/605 , H03H9/64 , H03H9/6483 , H04B1/04 , H04B1/10 , H04B1/16
Abstract: RF circuitry, which includes a first acoustic RF resonator (ARFR) and a first compensating ARFR, is disclosed. A first inductive element is coupled between the first compensating ARFR and a first end of the first ARFR. A second inductive element is coupled between the first compensating ARFR and a second end of the first ARFR. The first compensating ARFR, the first inductive element, and the second inductive element at least partially compensate for a parallel capacitance of the first ARFR.
Abstract translation: 公开了包括第一声RF谐振器（ARFR）和第一补偿ARFR的RF电路。 第一电感元件耦合在第一补偿ARFR和第一ARFR的第一端之间。 第二电感元件耦合在第一补偿ARFR和第一ARFR的第二端之间。 第一补偿ARFR，第一电感元件和第二电感元件至少部分地补偿第一ARFR的并联电容。
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Patent Agency Ranking
公开(公告)号：US09379667B2
公开(公告)日：2016-06-28
申请号：US14072225
申请日：2013-11-05
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat , Michael R. Kay , Philippe Gorisse
CPC classification number: H03F1/02 , H02M3/07 , H02M3/158 , H03F1/0227 , H03F3/189 , H03F3/24 , H03F2200/432 , H03G3/3042
Abstract: A switch mode power supply converter and a parallel amplifier are disclosed. The switch mode power supply converter is coupled to a modulated power supply output and the parallel amplifier has a parallel amplifier output coupled to the modulated power supply output. Further, the parallel amplifier has a group of output stages, such that each output stage is directly coupled to the parallel amplifier output and each output stage receives a separate supply voltage.
Abstract translation: 公开了一种开关电源转换器和并联放大器。 开关模式电源转换器耦合到调制电源输出，并联放大器具有耦合到调制电源输出的并行放大器输出。 此外，并联放大器具有一组输出级，使得每个输出级直接耦合到并行放大器输出，并且每个输出级接收单独的电源电压。
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公开(公告)号：US20160087483A1
公开(公告)日：2016-03-24
申请号：US14851642
申请日：2015-09-11
Applicant: RF Micro Devices, Inc.
Inventor： Alexander Wayne Hietala , Nadim Khlat
Abstract: Antenna array calibration for wireless charging is disclosed. A wireless charging system is provided and configured to calibrate antenna elements in a wireless charging station based on a feedback signal provided by a wireless charging device. The antenna elements in the wireless charging station transmit wireless radio frequency (RF) charging signals to the wireless charging device. The wireless charging device provides the feedback signal to the wireless charging station to indicate total RF power in the wireless RF charging signals. The wireless charging station is configured to adjust transmitter phases associated with the antenna elements based on the feedback signal until the total RF power in the wireless RF charging signals is maximized. By calibrating the antenna elements based on the feedback signal, it is possible to achieve phase coherency among the antenna elements without requiring factory calibration.
Abstract translation: 公开了用于无线充电的天线阵列校准。 提供无线充电系统并配置为基于由无线充电装置提供的反馈信号来校准无线充电站中的天线元件。 无线充电站中的天线元件向无线充电装置发送无线射频（RF）充电信号。 无线充电装置向无线充电站提供反馈信号以指示无线RF充电信号中的总RF功率。 无线充电站被配置为基于反馈信号调整与天线元件相关联的发射机相位，直到无线RF充电信号中的总RF功率最大化为止。 通过基于反馈信号校准天线元件，可以在不需要工厂校准的情况下实现天线元件之间的相位一致性。
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公开(公告)号：US20160087337A1
公开(公告)日：2016-03-24
申请号：US14843465
申请日：2015-09-02
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat
CPC classification number: H01Q3/267 , B60L11/182 , B60L2240/547 , B60L2240/549 , B60L2270/147 , H02J7/0027 , H02J7/025 , H02J50/10 , Y02T10/7011 , Y02T10/7072 , Y02T90/122 , Y02T90/14
Abstract: Antenna array calibration for wireless charging is disclosed. In one aspect, an initial calibration sequence is performed each time a wireless charging station is powered on. The initial calibration sequence utilizes a reference antenna element, which is an antenna element randomly selected from a plurality of antenna elements in the wireless charging station, to determine relative receiver phase errors between the reference antenna element and each of the other antenna elements in an antenna array. In another aspect, a training sequence is performed after completing the initial calibration sequence to determine total relative phase errors between the reference antenna element and each of the other antenna elements in the antenna array. Adjustments can then be made to match respective total relative phase errors among the plurality of antenna elements to achieve phase coherency among the plurality of antenna elements for improved wireless charging power efficiency.
Abstract translation: 公开了用于无线充电的天线阵列校准。 在一个方面，每当无线充电站上电时，执行初始校准序列。 初始校准序列使用参考天线元件，其是从无线充电站中的多个天线元件中随机选择的天线元件，以确定参考天线元件与天线中的每个其它天线元件之间的相对接收器相位误差 数组。 在另一方面，在完成初始校准序列之后执行训练序列，以确定参考天线元件与天线阵列中的每个其它天线元件之间的总相对相位误差。 然后可以进行调整以匹配多个天线元件中的相应的总相对相位误差，以实现多个天线元件之间的相位一致性，以改善无线充电功率效率。
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公开(公告)号：US20160065137A1
公开(公告)日：2016-03-03
申请号：US14836634
申请日：2015-08-26
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat
CPC classification number: H04B1/0475 , H03F1/0227 , H03F1/3241 , H03F3/19 , H03F3/245 , H03F2200/102 , H03F2200/451 , H04B2001/0416
Abstract: Envelope power supply circuitry includes an envelope power converter circuitry and envelope tracking circuitry. The envelope power converter circuitry receives an envelope power converter control signal from the envelope tracking circuitry and a supply voltage and provides an envelope power supply signal for an amplifier based thereon. In a first mode of operation, the envelope power converter control signal is provided such that the envelope power supply signal causes the gain of the amplifier to remain substantially constant over a range of input power provided to the amplifier. In a second mode of operation, the envelope power converter control signal is provided such that the envelope power supply signal remains substantially constant for values within the range of input power below a predetermined threshold, and such that the envelope power supply signal causes the gain of the amplifier to remain substantially constant for other values.
Abstract translation: 信封电源电路包括一个信封电源转换器电路和信封跟踪电路。 信封功率转换器电路从包络跟踪电路接收包络功率转换器控制信号和电源电压，并且基于此为放大器提供包络电源信号。 在第一操作模式中，提供包络电力转换器控制信号，使得包络电源信号使放大器的增益在提供给放大器的输入功率的范围内保持基本恒定。 在第二操作模式中，提供包络功率转换器控制信号，使得对于在低于预定阈值的输入功率范围内的值，包络电源信号保持基本上恒定，并且使得包络电源信号导致 放大器对于其他值保持基本恒定。
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公开(公告)号：US20160020636A1
公开(公告)日：2016-01-21
申请号：US14792891
申请日：2015-07-07
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat
Abstract: Aspects disclosed in the detailed description include a wireless charging circuit comprising a radio frequency (RF) power harvesting circuit. In one aspect, the RF power harvesting circuit is configured to harvest a wireless RF charging signal provided by a wireless charging station to generate a direct-current (DC) charging signal to charge a battery, for example, a lithium-ion (Li-ion) battery, in a battery-operated electronic device. In another aspect, a wireless charging controller controls the RF power harvesting circuit to dynamically increase or decrease an effective charging power of the DC charging signal according to a target charging power determined according to a charging profile of the battery. By dynamically adjusting the effective charging power provided to the battery according to the charging profile of the battery, it is possible to provide fast charging to the battery while protecting the battery from overcharging damage.
Abstract translation: 在详细描述中公开的方面包括包括射频（RF）功率采集电路的无线充电电路。 在一个方面，RF功率收集电路被配置为收获由无线充电站提供的无线RF充电信号，以产生直流（DC）充电信号，以对电池充电，例如锂离子（Li- 离子）电池，在电池供电的电子设备中。 在另一方面，无线充电控制器控制RF功率采集电路，以根据根据电池的充电曲线确定的目标充电功率来动态地增加或减少直流充电信号的有效充电功率。 通过根据电池的充电曲线动态地调整提供给电池的有效充电电力，可以对电池提供快速充电，同时保护电池免受过度充电损坏。
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