公开(公告)号：US20140009248A1

公开(公告)日：2014-01-09

申请号：US13935842

申请日：2013-07-05

Applicant: RF Micro Devices, Inc.

Inventor： Marcus Granger-Jones

IPC: H03H7/01 ,  H01G7/00

CPC classification number: H03J5/246 ,  H01G4/38 ,  H01G4/40 ,  H01G7/00 ,  H03J2200/10

Abstract: A tunable series resonant circuit includes a voltage source, a source impedance, a variable capacitor, a series inductor, and a load impedance. The variable capacitor includes a sPAC (series programmable array of capacitors) having desirable characteristics for a tunable series resonant circuit. The sPAC may be a binary weighted sPAC, a thermometer coded sPAC, or some other sPAC.

Abstract translation: 可调谐串联谐振电路包括电压源，源阻抗，可变电容器，串联电感器和负载阻抗。 可变电容器包括具有用于可调谐串联谐振电路的期望特性的sPAC（串联可编程电容器阵列）。 sPAC可以是二进制加权sPAC，温度计编码sPAC或其他一些sPAC。

公开(公告)号：US20130307506A1

公开(公告)日：2013-11-21

申请号：US13896035

申请日：2013-05-16

Applicant: RF Micro Devices, Inc.

Inventor： Wonseok Oh ,  Hyuntae Kim ,  Praveen Nadimpalli

IPC: G05F1/10

CPC classification number: G05F1/10 ,  G05F1/562 ,  G05F1/575

Abstract: A hybrid voltage regulator includes a shunt circuit, a shunt feedback circuit, a pass circuit, and a bias controller. The bias controller is configured to control the pass circuit. The hybrid voltage regulator may also include a current source. This hybrid voltage regulator reduces current consumption at low load conditions (improving power efficiency and battery life, particularly for CMOS based regulators), and also provides wideband power supply rejection and fast transient response.

Abstract translation: 混合电压调节器包括分流电路，分流反馈电路，通路电路和偏置控制器。 偏置控制器被配置为控制通过电路。 混合电压调节器还可以包括电流源。 该混合电压调节器在低负载条件下降低了电流消耗（提高功率效率和电池寿命，特别是对于基于CMOS的稳压器），并且还提供宽带电源抑制和快速瞬态响应。

公开(公告)号：US20130278317A1

公开(公告)日：2013-10-24

申请号：US13922337

申请日：2013-06-20

Applicant: RF Micro Devices, Inc.

Inventor： Christian Rye Iversen ,  Marcus Granger-Jones

IPC: H03H21/00

CPC classification number: H03H21/0007 ,  H03K17/102

Abstract: Switchable capacitive elements are disclosed, along with programmable capacitor arrays (PCAs). One embodiment of the switchable capacitive element includes a field effect transistor (FET) device stack, a first capacitor, and a second capacitor. The FET device stack is operable in an open state and in a closed state and has a plurality of FET devices coupled in series to form the FET device stack. The first capacitor and the second capacitor are both coupled in series with the FET device stack. However, the first capacitor is coupled to a first end of the FET device stack while the second capacitor is coupled to a second end opposite the first end of the FET device stack. In this manner, the switchable capacitive element can be operated without a negative charge pump, with decreased bias swings, and with a better power performance.

Abstract translation: 公开了可切换电容元件以及可编程电容器阵列（PCA）。 可切换电容元件的一个实施例包括场效应晶体管（FET）器件堆叠，第一电容器和第二电容器。 FET器件堆栈可在打开状态和关闭状态下工作，并且具有串联耦合以形成FET器件堆叠的多个FET器件。 第一电容器和第二电容器都与FET器件堆叠串联耦合。 然而，第一电容器耦合到FET器件堆叠的第一端，而第二电容器耦合到与FET器件堆叠的第一端相对的第二端。 以这种方式，可切换的电容元件可以在没有负电荷泵的情况下操作，具有减小的偏置摆动以及更好的功率性能。

公开(公告)号：US20130271224A1

公开(公告)日：2013-10-17

申请号：US13911428

申请日：2013-06-06

Applicant: RF Micro Devices, Inc.

Inventor： Anthony Puliafico ,  David E. Jones ,  Paul D. Jones ,  Chris Levesque ,  William David Southcombe ,  Scott Yoder ,  Terry J. Stockert

IPC: H03F3/19

CPC classification number: H03F3/19 ,  H03F1/0227 ,  H03F1/0261 ,  H03F1/0277 ,  H03F3/191 ,  H03F3/193 ,  H03F3/195 ,  H03F3/211 ,  H03F3/245 ,  H03F3/602 ,  H03F3/68 ,  H03F3/72 ,  H03F2200/171 ,  H03F2200/222 ,  H03F2200/27 ,  H03F2200/318 ,  H03F2200/336 ,  H03F2200/387 ,  H03F2200/411 ,  H03F2200/414 ,  H03F2200/417 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/534 ,  H03F2200/537 ,  H03F2200/541 ,  H03F2203/21106 ,  H03F2203/21142 ,  H03F2203/21157

Abstract: A radio frequency (RF) switch semiconductor die and an RF supporting structure are disclosed. The RF switch semiconductor die is attached to the RF supporting structure. The RF switch semiconductor die has a first edge and a second edge, which may be opposite from the first edge. The RF supporting structure has a group of alpha supporting structure connection nodes, which is adjacent to the first edge; a group of beta supporting structure connection nodes, which is adjacent to the second edge; and an alpha AC grounding supporting structure connection node, which is adjacent to the second edge. When the group of alpha supporting structure connection nodes and the alpha AC grounding supporting structure connection node are active, the group of beta supporting structure connection nodes are inactive.

Abstract translation: 公开了射频（RF）开关半导体管芯和RF支撑结构。 RF开关半导体管芯附接到RF支撑结构。 RF开关半导体管芯具有可以与第一边缘相反的第一边缘和第二边缘。 RF支持结构具有一组与第一边缘相邻的α支撑结构连接节点; 一组与第二边缘相邻的β支撑结构连接节点; 以及与第二边缘相邻的αAC接地支撑结构连接节点。 当α支持结构连接节点和α交流接地支持结构连接节点组成活动时，β支持结构连接节点组无效。

公开(公告)号：US20130194979A1

公开(公告)日：2013-08-01

申请号：US13754303

申请日：2013-01-30

Applicant: RF MICRO DEVICES, INC.

Inventor： Chris Levesque

IPC: H04B1/04

CPC classification number: H04B1/0475

Abstract: A radio frequency (RF) communications system, which includes an RF power amplifier (PA) and an envelope tracking power supply, is disclosed. The RF communications system processes RF signals associated with at least a first RF communications band, which has a first bandwidth. The RF PA receives and amplifies an RF input signal to provide an RF transmit signal using an envelope power supply signal. The envelope tracking power supply provides the envelope power supply signal, which has switching ripple based on a programmable switching frequency. The programmable switching frequency is selected to be greater that the first bandwidth.

Abstract translation: 公开了一种包括RF功率放大器（PA）和包络跟踪电源的射频（RF）通信系统。 RF通信系统处理与至少具有第一带宽的第一RF通信频带相关联的RF信号。 RFPA接收并放大RF输入信号，以使用包络电源信号提供RF发射信号。 信封跟踪电源提供包络电源信号，该信号具有基于可编程开关频率的开关纹波。 可编程开关频率被选择为大于第一带宽。

公开(公告)号：US20130176075A1

公开(公告)日：2013-07-11

申请号：US13782142

申请日：2013-03-01

Applicant: RF Micro Devices, Inc.

Inventor： Michael R. Kay ,  Andrew F. Folkmann ,  Nadim Khlat ,  Philippe Gorisse

IPC: G05F1/46 ,  H03F1/02

CPC classification number: G05F1/46 ,  H03F1/02 ,  H03F1/0266 ,  H03F3/195 ,  H03F3/24 ,  H03F2200/432 ,  H03F2200/555

Abstract: A direct current (DC)-DC converter, which includes switching circuitry, a first parallel amplifier, and a second parallel amplifier, is disclosed. The switching circuitry has a switching circuitry output. The first parallel amplifier has a first feedback input and a first parallel amplifier output. The second parallel amplifier has a second feedback input and a second parallel amplifier output. A first inductive element is coupled between the switching circuitry output and the first feedback input. A second inductive element is coupled between the first feedback input and the second feedback input.

Abstract translation: 公开了一种直流（DC）-DC转换器，其包括开关电路，第一并联放大器和第二并联放大器。 开关电路具有开关电路输出。 第一并联放大器具有第一反馈输入和第一并联放大器输出。 第二并联放大器具有第二反馈输入和第二并联放大器输出。 第一电感元件耦合在开关电路输出和第一反馈输入之间。 第二感应元件耦合在第一反馈输入和第二反馈输入之间。

公开(公告)号：US20130169245A1

公开(公告)日：2013-07-04

申请号：US13727911

申请日：2012-12-27

Applicant: RF Micro Devices, Inc.

Inventor： Michael R. Kay ,  Philippe Gorisse ,  Nadim Khlat ,  Andrew F. Folkmann ,  Manbir Singh Nag ,  Jean-Frederic Chiron

IPC: G05F1/46

CPC classification number: G05F1/46 ,  H02M1/15 ,  H02M3/158 ,  H02M2001/0045 ,  H03F1/0227 ,  H03F1/0266 ,  H03F1/26 ,  H03F3/19 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/432

Abstract: A direct current (DC)-DC converter, which includes a parallel amplifier, a radio frequency (RF) trap, and a switching supply, is disclosed. The switching supply includes switching circuitry and a first 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 RF trap is coupled between the parallel amplifier output and a ground.

Abstract translation: 公开了一种包括并联放大器，射频（RF）陷阱和开关电源的直流（DC）-DC转换器。 开关电源包括开关电路和第一电感元件。 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。 RF陷波器耦合在并行放大器输出和地之间。

公开(公告)号：US20130141072A1

公开(公告)日：2013-06-06

申请号：US13689922

申请日：2012-11-30

Applicant: RF MICRO DEVICES, INC.

Inventor： Nadim Khlat ,  Michael R. Kay

IPC: G05F3/02

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：US20130113556A1

公开(公告)日：2013-05-09

申请号：US13668641

申请日：2012-11-05

Applicant: RF Micro Devices, Inc.

Inventor： Jeffery P. Ortiz ,  Alexander Wayne Hietala

IPC: H03G3/20

CPC classification number: H03G3/3042

Abstract: In one embodiment, saturation of the control system of a power amplifier is limited by comparing a control voltage at a first control node against a scaled battery voltage, and then drawing an error current away from the first control node when the control voltage exceeds the scaled battery voltage. The first control node may be located after a trans-conductance amplifier in a feedback control system.

Abstract translation: 在一个实施例中，通过将第一控制节点处的控制电压与缩放的电池电压进行比较来限制功率放大器的控制系统的饱和度，然后当控制电压超过定标的电池时，从第一控制节点引出误差电流 电池电压。 第一控制节点可以位于反馈控制系统中的跨导放大器之后。

公开(公告)号：US20130107769A1

公开(公告)日：2013-05-02

申请号：US13661164

申请日：2012-10-26

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat ,  Christopher Truong Ngo

IPC: H04L27/06 ,  H04J11/00

CPC classification number: H03F1/0227 ,  H02M3/156 ,  H03F3/19 ,  H03F2200/108 ,  H03F2200/351

Abstract: This disclosure relates generally to radio frequency (RF) switching converters and RF amplification devices that use RF switching converters. For example, an RF switching converter may include a switching circuit that receives a power source voltage and a switching controller that receives a target average frequency value identifying a target average frequency. The switching circuit is switchable so as to generate a pulsed output voltage from the power source voltage. The switching controller switches the switching circuit such that the pulsed output voltage has an average pulse frequency. The switching controller also detects that the average pulse frequency of the pulsed output voltage during a time period differs from the target average frequency, and reduces a difference between the average pulse frequency and the target average frequency. In this manner, the effects of manufacturing variations and operational variations on the average pulse frequency can be eliminated, or at least diminished.

Abstract translation: 本公开一般涉及使用RF开关转换器的射频（RF）开关转换器和RF放大器件。 例如，RF开关转换器可以包括接收电源电压的开关电路和接收识别目标平均频率的目标平均频率值的开关控制器。 开关电路是可切换的，以便从电源电压产生脉冲输出电压。 开关控制器切换开关电路，使得脉冲输出电压具有平均脉冲频率。 切换控制器还检测在一段时间内脉冲输出电压的平均脉冲频率与目标平均频率不同，并且减小了平均脉冲频率和目标平均频率之间的差。 以这种方式，可以消除或至少减少制造变化和操作变化对平均脉冲频率的影响。