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公开(公告)号：US08981839B2
公开(公告)日：2015-03-17
申请号：US13914888
申请日：2013-06-11
Applicant: RF Micro Devices, Inc.
Inventor： Michael R. Kay , Manbir Singh Nag , Philippe Gorisse
IPC: G05F1/10 , H03K17/687
CPC classification number: H03K17/687 , G06F1/263 , Y10T307/50
Abstract: Circuitry, which includes a first switching transistor element having a first gate, a second switching transistor element having a second gate, a third switching transistor element having a third gate, and a fourth switching transistor element having a fourth gate, is disclosed. The first switching transistor element and the third switching transistor element are coupled in series between a first power source and a first downstream circuit. The second switching transistor element and the fourth switching transistor element are coupled in series between a second power source and the first downstream circuit. A voltage swing at the first gate and a voltage swing at the second gate are both about equal to a first voltage magnitude. A voltage swing at the third gate and a voltage swing at the fourth gate are both about equal to a second voltage magnitude.
Abstract translation: 公开了一种电路，其包括具有第一栅极的第一开关晶体管元件，具有第二栅极的第二开关晶体管元件，具有第三栅极的第三开关晶体管元件和具有第四栅极的第四开关晶体管元件。 第一开关晶体管元件和第三开关晶体管元件串联在第一电源和第一下游电路之间。 第二开关晶体管元件和第四开关晶体管元件串联耦合在第二电源和第一下游电路之间。 第一栅极处的电压摆动和第二栅极处的电压摆动都大致等于第一电压幅度。 第三栅极处的电压摆动和第四栅极处的电压摆动大约等于第二电压幅度。
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公开(公告)号：US20150048891A1
公开(公告)日：2015-02-19
申请号：US14458341
申请日：2014-08-13
Applicant: RF Micro Devices, Inc.
Inventor： Ashraf Rozek , Michael R. Kay
CPC classification number: H02M3/158 , H02M3/07 , H02M2001/007 , H03F1/0227 , H03F3/005 , H03F3/19 , H03F3/195 , H03F3/21 , H03F3/245 , H03F2200/102 , H03F2200/451
Abstract: A DC-DC converter, which provides a converter output voltage using a DC source voltage, is disclosed. The DC-DC converter includes converter control circuitry and a boosting charge pump. The converter control circuitry selects one of a first boost operating mode, a second boost operating mode, and a boost disabled mode based on the DC source voltage. During the boost disabled mode, the boosting charge pump presents a high impedance at a charge pump output of the boosting charge pump. Otherwise, the boosting charge pump provides a charge pump output voltage. During the first boost operating mode, a nominal value of the charge pump output voltage is equal to about one and one-half times the DC source voltage. During the second boost operating mode, a nominal value of the charge pump output voltage is equal to about two times the DC source voltage.
Abstract translation: 公开了一种使用DC源电压提供转换器输出电压的DC-DC转换器。 DC-DC转换器包括转换器控制电路和升压电荷泵。 转换器控制电路基于直流电源电压选择第一升压操作模式，第二升压操作模式和升压禁止模式中的一个。 在升压禁用模式期间，升压电荷泵在增压电荷泵的电荷泵输出处呈现高阻抗。 否则，升压电荷泵提供电荷泵输出电压。 在第一升压操作模式期间，电荷泵输出电压的标称值等于直流电源电压的大约一倍。 在第二升压操作模式期间，电荷泵输出电压的标称值等于直流电源电压的大约两倍。
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公开(公告)号：US08878606B2
公开(公告)日：2014-11-04
申请号：US13661552
申请日：2012-10-26
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat , Michael R. Kay , Philippe Gorisse
CPC classification number: H02M3/156 , H02M1/15 , H02M2001/0045 , H02M2001/0048 , H03F1/0216 , H03F3/2171 , Y02B70/1491
Abstract: A direct current (DC)-DC converter, which includes a parallel amplifier and a switching supply, is disclosed. The switching supply includes switching circuitry, a first inductive element, and a second inductive element. The parallel amplifier has a feedback input and a parallel amplifier output. The switching circuitry has a switching circuitry output. The first inductive element is coupled between the switching circuitry output and the feedback input. The second inductive element is coupled between the feedback input and the parallel amplifier output.
Abstract translation: 公开了一种包括并联放大器和开关电源的直流（DC）-DC转换器。 开关电源包括开关电路，第一电感元件和第二电感元件。 并联放大器具有反馈输入和并行放大器输出。 开关电路具有开关电路输出。 第一电感元件耦合在开关电路输出和反馈输入之间。 第二电感元件耦合在反馈输入端和并行放大器输出端之间。
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公开(公告)号：US20140225674A1
公开(公告)日：2014-08-14
申请号：US14176611
申请日：2014-02-10
Applicant: RF Micro Devices, Inc.
Inventor： Andrew F. Folkmann , Nadim Khlat , Michael R. Kay
CPC classification number: H03F1/0222 , H03F1/0227 , H03F3/19 , H03F3/21 , H03F3/245 , H03F2200/102 , H03F2200/451
Abstract: Circuitry, which includes a linear amplifier, is disclosed. The linear amplifier has a linear amplifier output and includes an input amplifier stage and an output amplifier stage. The output amplifier stage at least partially provides an envelope power supply voltage to a radio frequency (RF) power amplifier (PA) via an envelope power supply output using a selected one of a group of linear amplifier power supply signals. The group of linear amplifier power supply signals includes at least a first bi-directional power supply signal. The input amplifier stage selects the one of the group of linear amplifier power supply signals based on the envelope power supply voltage and a setpoint of the envelope power supply voltage.
Abstract translation: 公开了包括线性放大器的电路。 线性放大器具有线性放大器输出，并包括输入放大级和输出放大级。 输出放大器级至少部分地通过使用一组线性放大器电源信号中选定的一个的包络电源输出向射频（RF）功率放大器（PA）提供包络电源电压。 线性放大器电源信号组至少包括第一双向电源信号。 输入放大器级基于包络电源电压和包络电源电压的设定点来选择一组线性放大器电源信号。
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Patent Agency Ranking
公开(公告)号：US20140203869A1
公开(公告)日：2014-07-24
申请号：US14163256
申请日：2014-01-24
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat , Michael R. Kay , Manbir Singh Nag
IPC: H03F3/189
CPC classification number: H03F1/0227 , H02M2001/0045 , H03F1/0266 , H03F3/195 , H03F3/24 , H03F2200/375 , H03F2200/432 , H03F2200/451 , H03F2200/471 , H03F2200/555
Abstract: A parallel amplifier and an offset capacitance voltage control loop are disclosed. The parallel amplifier has a parallel amplifier output, which is coupled to an envelope tracking power supply output via an offset capacitive element. The offset capacitive element has an offset capacitive voltage. The offset capacitance voltage control loop regulates the offset capacitive voltage, which is adjustable on a communications slot-to-communications slot basis.
Abstract translation: 公开了并联放大器和偏移电容电压控制回路。 并联放大器具有并联放大器输出，其通过偏移电容元件耦合到包络跟踪电源输出。 偏移电容元件具有偏移电容电压。 偏移电容电压控制回路调节偏移电容电压，其可以在通信插槽到通信插槽的基础上进行调整。
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公开(公告)号：US20140097895A1
公开(公告)日：2014-04-10
申请号：US14101770
申请日：2013-12-10
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat , Michael R. Kay , Philippe Gorisse
IPC: H03F3/217
CPC classification number: H03F3/217 , H02M3/07 , H02M2001/0025 , 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 and a feedback delay compensation circuit are disclosed. The switch mode power supply converter has a switching voltage output and provides a switching voltage at the switching voltage output, such that a target voltage for a power amplifier supply voltage at a power amplifier supply output is based on the switching voltage. Further, the switching voltage is based on an early indication of a change of the target voltage. The feedback delay compensation circuit provides the early indication of the change of the target voltage.
Abstract translation: 公开了开关模式电源转换器和反馈延迟补偿电路。 开关模式电源转换器具有开关电压输出，并且在开关电压输出端提供开关电压，使得功率放大器电源输出端的功率放大器电源电压的目标电压基于开关电压。 此外，开关电压基于目标电压的变化的早期指示。 反馈延迟补偿电路提供目标电压变化的早期指示。
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公开(公告)号：US20140009200A1
公开(公告)日：2014-01-09
申请号：US14022940
申请日：2013-09-10
Applicant: RF Micro Devices, Inc.
Inventor： Michael R. Kay , Philippe Gorisse , Nadim Khlat
IPC: H03K5/14
CPC classification number: H03K5/14 , 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: Programmable delay circuitry, which includes an input buffer circuit and variable delay circuitry, is disclosed. The variable delay circuitry includes an input stage, a correction start voltage circuit, and a variable delay capacitor. The input buffer circuit is coupled to the input stage, the correction start voltage circuit is coupled to the input stage, and the variable delay capacitor is coupled to the input stage. The programmable delay circuitry is configured to provide a fixed time delay and a variable time delay.
Abstract translation: 公开了包括输入缓冲电路和可变延迟电路的可编程延迟电路。 可变延迟电路包括输入级，校正开始电压电路和可变延迟电容器。 输入缓冲电路耦合到输入级，校正开始电压电路耦合到输入级，可变延迟电容耦合到输入级。 可编程延迟电路被配置为提供固定的时间延迟和可变的时间延迟。
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公开(公告)号：US20130141064A1
公开(公告)日：2013-06-06
申请号：US13747749
申请日：2013-01-23
Applicant: RF Micro Devices, Inc.
Inventor： Michael R. Kay , Nadim Khlat
IPC: G05F1/46
CPC classification number: G05F1/46 , H02M1/14 , H02M2001/0067 , H03F1/0227 , H03F1/26 , H03F3/24 , H03F2200/351 , H03F2200/451 , H03F2200/504 , H04B15/005
Abstract: This disclosure relates to radio frequency (RF) power converters and methods of operating the same. In one embodiment, an RF power converter includes an RF switching converter, a low-drop out (LDO) regulation circuit, and an RF filter. The RF filter is coupled to receive a pulsed output voltage from the RF switching converter and a supply voltage from the LDO regulation circuit. The RF filter is operable to alternate between a first RF filter topology and a second RF filter topology. In the first RF filter topology, the RF filter is configured to convert the pulsed output voltage from a switching circuit into the supply voltage. The RF filter in the second RF filter topology is configured to filter the supply voltage from the LDO regulation circuit to reduce a ripple variation in a supply voltage level of the supply voltage. As such, the RF filter provides greater versatility.
Abstract translation: 本公开涉及射频（RF）功率转换器及其操作方法。 在一个实施例中，RF功率转换器包括RF开关转换器，低压降（LDO）调节电路和RF滤波器。 RF滤波器被耦合以接收来自RF开关转换器的脉冲输出电压和来自LDO调节电路的电源电压。 RF滤波器可操作以在第一RF滤波器拓扑和第二RF滤波器拓扑之间交替。 在第一RF滤波器拓扑中，RF滤波器被配置为将来自开关电路的脉冲输出电压转换成电源电压。 第二RF滤波器拓扑中的RF滤波器被配置为对来自LDO调节电路的电源电压进行滤波，以减少电源电压的电源电压电平中的纹波变化。 因此，RF滤波器提供更大的通用性。
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公开(公告)号：US20130141063A1
公开(公告)日：2013-06-06
申请号：US13747694
申请日：2013-01-23
Applicant: RF Micro Devices, Inc.
Inventor： Michael R. Kay , Nadim Khlat
IPC: G05F1/46
CPC classification number: G05F1/468 , H02M1/10 , H02M2001/0067 , H03F1/0211 , H03F1/0227 , H03F1/26 , H03F3/24 , H03F2200/351 , H03F2200/451 , H03F2200/504 , H04B15/005
Abstract: This disclosure relates to radio frequency (RF) power converters and methods of operating the same. In one embodiment, an RF power converter includes an RF switching converter, a low-drop out (LDO) regulation circuit, and an RF filter. The RF filter is coupled to receive a pulsed output voltage from the RF switching converter and a supply voltage from the LDO regulation circuit. The RF filter is operable to alternate between a first RF filter topology and a second RF filter topology. In the first RF filter topology, the RF filter is configured to convert the pulsed output voltage from a switching circuit into the supply voltage. The RF filter in the second RF filter topology is configured to filter the supply voltage from the LDO regulation circuit to reduce a ripple variation in a supply voltage level of the supply voltage. As such, the RF filter provides greater versatility.
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