公开(公告)号：US09494962B2

公开(公告)日：2016-11-15

申请号：US13689922

申请日：2012-11-30

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat ,  Michael R. Kay

IPC: G05F3/24 ,  G05F1/575 ,  H02M3/156 ,  G05F3/04 ,  G05F3/06 ,  G05F3/02 ,  H02M1/14 ,  H02M3/155 ,  H02M3/158

CPC classification number: G05F3/02 ,  H02M1/14 ,  H02M3/155 ,  H02M2003/1586

Abstract: Embodiments of circuitry, which includes power supply switching circuitry and a first inductive element, are disclosed. The power supply switching circuitry has a first switching output and a second switching output. The first inductive element is coupled between the first switching output and a power supply output. The power supply switching circuitry operates in one of a first operating mode and a second operating mode. During the first operating mode, the first switching output is voltage compatible with the second switching output. During the second operating mode, the first switching output is allowed to be voltage incompatible with the second switching output.

Abstract translation: 公开了包括电源开关电路和第一电感元件的电路的实施例。 电源开关电路具有第一开关输出和第二开关输出。 第一电感元件耦合在第一开关输出和电源输出之间。 电源开关电路以第一操作模式和第二操作模式中的一个操作。 在第一操作模式期间，第一开关输出与第二开关输出电压兼容。 在第二操作模式期间，允许第一开关输出与第二开关输出不兼容的电压。

公开(公告)号：US09395737B2

公开(公告)日：2016-07-19

申请号：US13689922

申请日：2012-11-30

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat ,  Michael R. Kay

IPC: G05F3/24 ,  G05F1/575 ,  H02M3/156 ,  G05F3/04 ,  G05F3/06 ,  G05F3/02 ,  H02M1/14 ,  H02M3/155 ,  H02M3/158

Abstract: Embodiments of circuitry, which includes power supply switching circuitry and a first inductive element, are disclosed. The power supply switching circuitry has a first switching output and a second switching output. The first inductive element is coupled between the first switching output and a power supply output. The power supply switching circuitry operates in one of a first operating mode and a second operating mode. During the first operating mode, the first switching output is voltage compatible with the second switching output. During the second operating mode, the first switching output is allowed to be voltage incompatible with the second switching output.

公开(公告)号：US09385687B2

公开(公告)日：2016-07-05

申请号：US14659386

申请日：2015-03-16

Applicant: RF Micro Devices, Inc.

Inventor： Alan Leon Ellis ,  Edward Russell Franzwa

IPC: H03H11/02 ,  H03H11/24

CPC classification number: H03H11/245

Abstract: RF attenuator circuitry includes an RF attenuator and a control system. The RF attenuator is configured to provide an attenuation response between an input node and an output node. The control system is coupled to the RF attenuator and configured to adjust one or more control signals provided to the RF attenuator based on either the temperature of the circuitry or an externally applied test signal provided to the control system. The control signals are provided such that the attenuation response of the RF attenuator is substantially linear-in-dB with respect to either the temperature or the test signal provided to the control system. Because the control system is configured to adjust the control signals based either on a temperature of the circuitry or the test signal, the response of the RF attenuator can be easily and quickly tested to ensure linear-in-dB operation thereof.

Abstract translation: RF衰减器电路包括RF衰减器和控制系统。 RF衰减器被配置为在输入节点和输出节点之间提供衰减响应。 控制系统耦合到RF衰减器，并且被配置为基于提供给控制系统的电路的温度或外部施加的测试信号来调整提供给RF衰减器的一个或多个控制信号。 提供控制信号，使得RF衰减器的衰减响应相对于提供给控制系统的温度或测试信号基本上是以dB为单位。 由于控制系统被配置为基于电路的温度或测试信号来调整控制信号，所以可以容易且快速地测试RF衰减器的响应，以确保其在线的dB工作。

公开(公告)号：US09385685B2

公开(公告)日：2016-07-05

申请号：US14031454

申请日：2013-09-19

Applicant: RF Micro Devices, Inc.

Inventor： Kushal Bhattacharjee ,  Sergei Zhgoon

IPC: H01L41/053 ,  H01L41/047 ,  H03H9/25 ,  H03H9/125 ,  H03H9/15 ,  C04B35/00 ,  H03H9/17

CPC classification number: H03H9/17 ,  H03H2009/155

Abstract: A micro-electrical-mechanical system (MEMS) vibrating structure includes a carrier substrate, a first anchor, a second anchor, a single crystal piezoelectric body, a first conducting layer, and a second conducting layer. The first anchor and the second anchor are provided on the surface of the carrier substrate. The single-crystal piezoelectric body is suspended between the first anchor and the second anchor, and includes a uniform crystalline orientation defined by a set of Euler angles. The single-crystal piezoelectric body includes a first surface parallel to and facing the surface of the carrier substrate on which the first anchor and the second anchor are formed and a second surface opposite the first surface. The first conducting layer is inter-digitally dispersed on the second surface of the single-crystal piezoelectric body. The second conducting layer is inter-digitally dispersed on the first surface of the single-crystal piezoelectric body.

Abstract translation: 微电气机械系统（MEMS）振动结构包括载体基板，第一锚固件，第二锚定器，单晶体压电体，第一导电层和第二导电层。 第一锚固件和第二锚固件设置在载体基板的表面上。 单晶压电体悬挂在第一锚和第二锚之间，并且包括由一组欧拉角定义的均匀结晶取向。 单晶体压电体包括平行于并面向其上形成有第一锚和第二锚的载体基板的表面的第一表面和与第一表面相对的第二表面。 第一导电层以数字方式分散在单晶体压电体的第二表面上。 第二导电层被数字地分散在单晶体压电体的第一表面上。

公开(公告)号：US09362818B2

公开(公告)日：2016-06-07

申请号：US13013986

申请日：2011-01-26

Applicant: Philippe Gorisse ,  Nadim Khlat

Inventor： Philippe Gorisse ,  Nadim Khlat

IPC: H02M3/07

CPC classification number: H02M3/07 ,  H02M2003/072

Abstract: A charge pump includes an input, an output, and a fixed voltage node; a first capacitor and at least a second capacitor; and a plurality of switches adapted to selectively couple the first capacitor and the at least the second capacitor to the input, the output, and the fixed voltage node. A switch controller is adapted to switch the plurality of switches in response to at least three phase signals to provide fixed gains. A phase generator is adapted to generate the at least three phase signals, wherein at least one of the at least three phase signals has a duty cycle that is different from at least one other of the at least three phase signals. The phase generator is also adapted to adjust the frequency of a clock signal used to generate the at least three phase signals so that a minimum switching frequency is provided.

Abstract translation: 电荷泵包括输入，输出和固定电压节点; 第一电容器和至少第二电容器; 以及多个开关，适于将第一电容器和至少第二电容器选择性地耦合到输入端，输出端和固定电压节点。 开关控制器适于响应于至少三个相位信号切换多个开关以提供固定增益。 相位发生器适于产生至少三个相位信号，其中至少三个相位信号中的至少一个具有不同于至少三个相位信号中的至少另一个的占空比。 相位发生器还适于调整用于产生至少三个相位信号的时钟信号的频率，从而提供最小的开关频率。

公开(公告)号：US09344129B2

公开(公告)日：2016-05-17

申请号：US13444390

申请日：2012-04-11

Applicant: Michael S. LaBelle ,  Shane Moore ,  Jamel Benbrik ,  Michael B Thomas

Inventor： Michael S. LaBelle ,  Shane Moore ,  Jamel Benbrik ,  Michael B Thomas

IPC: H04B1/16 ,  H04L27/04 ,  H04B1/04

CPC classification number: H04B1/1615 ,  H04B1/1607 ,  H04B2001/0416 ,  H04L27/04

Abstract: An apparatus comprises at least one transmit amplifier and rectification circuitry located in the at least one transmit amplifier, which is configured to receive a RF signal and provide a rectified voltage, which is selectably added to a voltage supplied by a battery to generate a DC voltage supply signal that is a function of RF power level. A controller is configured to select between providing the VBAT or the VSupply signal to a transmit switch depending on one or more of a logic state and a mode of operation. An alternate apparatus comprises a charge pump circuit configured to quickly raise a voltage supplied to it and store the output voltage on a capacitor and then either shift a first frequency provided by a charge pump oscillator to a lower second frequency or turn off a charge pump clock to maintain a voltage on the capacitor during a transmit mode.

Abstract translation: 一种装置包括位于至少一个发射放大器中的至少一个发射放大器和整流电路，该发射放大器和整流电路被配置为接收RF信号并提供整流电压，该电压被可选择地加到电池提供的电压上以产生直流电压 供电信号是RF功率电平的函数。 控制器被配置为根据逻辑状态和操作模式中的一个或多个来向发送开关提供VBAT或VSupply信号之间进行选择。 备选装置包括电荷泵电路，其被配置为快速升高提供给它的电压并将输出电压存储在电容器上，然后将由电荷泵振荡器提供的第一频率移动到较低的第二频率或者关闭电荷泵时钟 以在发送模式期间保持电容器上的电压。

公开(公告)号：US09337787B2

公开(公告)日：2016-05-10

申请号：US14304149

申请日：2014-06-13

Applicant: RF Micro Devices, Inc.

Inventor： Derek Schooley ,  Alexander Wayne Hietala

IPC: H03G3/30 ,  H03F3/21 ,  H03F1/02 ,  H03F3/191

CPC classification number: H03F3/21 ,  H03F1/0261 ,  H03F3/191 ,  H03F2200/18 ,  H03F2200/27 ,  H03F2200/451 ,  H03G3/30

Abstract: Power amplifier circuitry includes a power amplifier including an input node and an output node, biasing circuitry, a selectable impedance network, and an input capacitor. The input capacitor is coupled to the input node of the power amplifier. The biasing circuitry is coupled to the input node of the power amplifier through the selectable impedance network. The power amplifier is operable in a low power operating mode and a high power operating mode. In the low power operating mode, the biasing circuitry delivers a first biasing current to the input node of the power amplifier, and a first impedance level of the selectable impedance is selected. In the high power operating mode, the biasing circuitry delivers a second biasing current to the input node of the power amplifier, and a second impedance level of the selectable impedance is selected.

Abstract translation: 功率放大器电路包括功率放大器，其包括输入节点和输出节点，偏置电路，可选阻抗网络和输入电容器。 输入电容器耦合到功率放大器的输入节点。 偏置电路通过可选择的阻抗网络耦合到功率放大器的输入节点。 功率放大器可在低功率工作模式和高功率工作模式下工作。 在低功率操作模式中，偏置电路将第一偏置电流传送到功率放大器的输入节点，并且选择可选阻抗的第一阻抗级别。 在高功率操作模式中，偏置电路将第二偏置电流传递到功率放大器的输入节点，并且选择可选择阻抗的第二阻抗水平。

公开(公告)号：US09319208B2

公开(公告)日：2016-04-19

申请号：US13726782

申请日：2012-12-26

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat

IPC: H04L5/14 ,  H04B1/525

CPC classification number: H04L5/14 ,  H04B1/525

Abstract: Radio frequency (RF) duplexing devices and methods of operating the same are disclosed. In one embodiment, an RF duplexing device includes a transmission port, a receive port, a first duplexer, and a second duplexer. The first duplexer is coupled to the transmission port and the receive port, and is configured to provide a first phase shift from the transmission port to the receive port. The second duplexer is also coupled to the transmission port and the receive port. However, the second duplexer is configured to provide a second phase shift that is differential to the first phase shift from the transmission port to the receive port. By providing the second phase shift so that the second phase shift is differential to the first phase shift, the RF duplexing device can provide isolation through cancellation without needing to introduce significant insertion losses.

Abstract translation: 公开了射频（RF）双工设备及其操作方法。 在一个实施例中，RF双工设备包括传输端口，接收端口，第一双工器和第二双工器。 第一双工器耦合到传输端口和接收端口，并且被配置为提供从传输端口到接收端口的第一相移。 第二双工器也耦合到传输端口和接收端口。 然而，第二双工器被配置为提供与从传输端口到接收端口的第一相移差分的第二相移。 通过提供第二相移使得第二相移与第一相移不同，RF双工设备可以通过取消提供隔离，而不需要引入显着的插入损耗。

公开(公告)号：US09263991B2

公开(公告)日：2016-02-16

申请号：US14209581

申请日：2014-03-13

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat ,  Jean-Blaise Pierres ,  Michael R Kay

IPC: H03F1/02

CPC classification number: H03F1/02 ,  H03F1/0211 ,  H03F1/0261 ,  H03F2203/45192

Abstract: In one embodiment, a digital internal amplified voltage of power management circuitry is forced to an input threshold voltage upon a determination that a set of emergency conditions is satisfied, and is set to an input minimum battery voltage upon a determination that the set of emergency conditions is not satisfied. The emergency conditions may include determining that a battery voltage is less than a threshold voltage and determining that an input minimum battery voltage is less than an input threshold voltage.

Abstract translation: 在一个实施例中，当确定一组紧急情况被满足时，将功率管理电路的数字内部放大电压强制为输入阈值电压，并且在确定该组紧急情况时被设置为输入最小电池电压 不满意 紧急情况可以包括确定电池电压小于阈值电压并且确定输入的最小电池电压小于输入阈值电压。

公开(公告)号：US09256234B2

公开(公告)日：2016-02-09

申请号：US13747749

申请日：2013-01-23

Applicant: RF Micro Devices, Inc.

Inventor： Michael R. Kay ,  Nadim Khlat

IPC: G05F1/46 ,  H02M1/14 ,  H03F1/02 ,  H03F1/26 ,  H03F3/24 ,  H04B15/00 ,  H02M1/00

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。