-
公开(公告)号：US10147994B2
公开(公告)日：2018-12-04
申请号：US15712531
申请日：2017-09-22
发明人： Srivatsan Jayaraman , Onder Oz , Pradeep A. Balaraman , Roman Zbigniew Arkiszewski , Yeung Bun Choi , Songbai Zhang
摘要： Aspects of this disclosure relate to a coupler circuit configured to receive an output of a radio frequency coupler. The coupler circuit can be arranged in a daisy chain with other coupler circuits. The coupler circuit can include a switch configured to turn on based on a signal level of a direct current component of a coupler signal from another coupler circuit and pass a radio frequency component of the coupler signal when on. The coupler circuit can pass the coupler signal while a module that includes the coupler circuit is otherwise inactive.
-
公开(公告)号：US12051845B2
公开(公告)日：2024-07-30
申请号：US17663575
申请日：2022-05-16
发明人： Srivatsan Jayaraman , Onder Oz , Pradeep A. Balaraman , Roman Zbigniew Arkiszewski , Yeung Bun Choi , Songbai Zhang
CPC分类号： H01P5/18 , H03F3/195 , H03F3/24 , H03G3/3042 , H03F2200/204 , H03F2200/294 , H03F2200/451
摘要： Aspects of this disclosure relate to a coupler circuit configured to receive an output of a radio frequency coupler. The coupler circuit can be arranged in a daisy chain with other coupler circuits. The coupler circuit can include a switch configured to turn on based on a signal level of a direct current component of a coupler signal from another coupler circuit and pass a radio frequency component of the coupler signal when on. The coupler circuit can pass the coupler signal while a module that includes the coupler circuit is otherwise inactive.
-
公开(公告)号：US20200335844A1
公开(公告)日：2020-10-22
申请号：US16838366
申请日：2020-04-02
发明人： Srivatsan Jayaraman , Onder Oz , Pradeep A. Balaraman , Roman Zbigniew Arkiszewski , Yeung Bun Choi , Songbai Zhang
摘要： Aspects of this disclosure relate to a coupler circuit configured to receive an output of a radio frequency coupler. The coupler circuit can be arranged in a daisy chain with other coupler circuits. The coupler circuit can include a switch configured to turn on based on a signal level of a direct current component of a coupler signal from another coupler circuit and pass a radio frequency component of the coupler signal when on. The coupler circuit can pass the coupler signal while a module that includes the coupler circuit is otherwise inactive.
-
公开(公告)号：US11367938B2
公开(公告)日：2022-06-21
申请号：US16838366
申请日：2020-04-02
发明人： Srivatsan Jayaraman , Onder Oz , Pradeep A. Balaraman , Roman Zbigniew Arkiszewski , Yeung Bun Choi , Songbai Zhang
摘要： Aspects of this disclosure relate to a coupler circuit configured to receive an output of a radio frequency coupler. The coupler circuit can be arranged in a daisy chain with other coupler circuits. The coupler circuit can include a switch configured to turn on based on a signal level of a direct current component of a coupler signal from another coupler circuit and pass a radio frequency component of the coupler signal when on. The coupler circuit can pass the coupler signal while a module that includes the coupler circuit is otherwise inactive.
-
公开(公告)号：US20190131684A1
公开(公告)日：2019-05-02
申请号：US16172056
申请日：2018-10-26
发明人： Srivatsan Jayaraman , Onder Oz , Pradeep A. Balaraman , Roman Zbigniew Arkiszewski , Yeung Bun Choi , Songbai Zhang
摘要： Aspects of this disclosure relate to a coupler circuit configured to receive an output of a radio frequency coupler. The coupler circuit can be arranged in a daisy chain with other coupler circuits. The coupler circuit can include a switch configured to turn on based on a signal level of a direct current component of a coupler signal from another coupler circuit and pass a radio frequency component of the coupler signal when on. The coupler circuit can pass the coupler signal while a module that includes the coupler circuit is otherwise inactive.
-
公开(公告)号：US09755578B2
公开(公告)日：2017-09-05
申请号：US14809227
申请日：2015-07-26
CPC分类号： H03F1/0233 , H03F3/195 , H03F3/213 , H03F2200/423 , H03F2200/451 , H03F2200/462 , H03F2200/528 , H03G3/30 , H03G3/3042
摘要： Current-mode control for radio-frequency (RF) power amplifiers. In some embodiments, an RF power amplifier control circuit can include a sensor configured to measure a base current of a power amplifier and generate a sensed current. The control circuit can further include a sensing node configured to receive a reference current and perform a current-mode operation with the sensed current to yield an error current. The control circuit can further include a control loop configured to generate a control signal based on the error current to adjust an operating parameter of the power amplifier.
-
公开(公告)号：US20170194921A1
公开(公告)日：2017-07-06
申请号：US15393692
申请日：2016-12-29
CPC分类号： H03F3/245 , H03F1/0277 , H03F1/56 , H03F3/193 , H03F3/68 , H03F3/72 , H03F2200/387 , H03F2200/408 , H03F2200/451 , H03F2200/507 , H03F2203/7209 , H03F2203/7227 , H03F2203/7236 , H04W88/06
摘要： A power amplifier that can support multiple communication networks while maintaining power efficiency across each of the supported communication networks is disclosed. In some implementations described herein, a power amplifier module includes a bypass circuit that enables different voltage supplies to be provided to the power amplifier. By regulating the voltage supply provided to the power amplifier, the power amplifier can support different communication networks while maintaining power efficiency across a dynamic frequency range. Moreover, embodiments herein may include a buck converter, or other form of DC-DC converter, that enables the power amplifier to operate with respect to multiple communication networks. Advantageously, in certain embodiments, because wireless devices that include multiple power amplifiers often require a DC-DC converter to support at least some of the communication networks, the inclusion of the buck converter in the embodiments described herein does not add additional cost or size to the wireless device.
-
8.发明授权Systems, circuits and methods related to controllers for radio-frequency power amplifiers 有权与射频功率放大器控制器相关的系统，电路和方法公开(公告)号：US09093969B2
公开(公告)日：2015-07-28
申请号：US13967329
申请日：2013-08-14
发明人： Netsanet Gebeyehu , Ying Shi , Reza Kasnavi , Onder Oz , Jinghang Feng
CPC分类号： H03F1/0233 , H03F3/195 , H03F3/213 , H03F2200/423 , H03F2200/451 , H03F2200/462 , H03F2200/528 , H03G3/30 , H03G3/3042
摘要： Disclosed are systems, circuits and methods related to controlling of a radio-frequency (RF) power amplifier (PA). In some embodiments, a PA control circuit can include a first circuit configured to generate a replica base current from a base current provided to the PA, with the replica base current being representative of a collector current of the PA scaled by a beta parameter. The PA control circuit can further include a second circuit configured to generate a beta-tracking reference current from a temperature-compensated voltage and a base resistance associated with the PA. The PA control circuit can further include a current steering circuit configured to receive the replica base current and the beta-tracking reference current and generate a proportional current to a clamping node of a base driver. In some embodiments, the replica base current can be obtained by a current-mode comparison of a finger-sensed current with a ramp current.
摘要翻译： 公开了与控制射频（RF）功率放大器（PA）相关的系统，电路和方法。 在一些实施例中，PA控制电路可以包括被配置为从提供给PA的基极电流产生复制基极电流的第一电路，其中复制基极电流代表由β参数缩放的PA的集电极电流。 PA控制电路还可以包括被配置为从温度补偿电压和与PA相关联的基极电阻产生β跟踪参考电流的第二电路。 PA控制电路还可以包括配置成接收复制基极电流和β跟踪参考电流的电流转向电路，并产生一个比例电流到基本驱动器的钳位节点。 在一些实施例中，可以通过手指感测电流与斜坡电流的电流模式比较来获得复制基极电流。
-
公开(公告)号：US20220311118A1
公开(公告)日：2022-09-29
申请号：US17663575
申请日：2022-05-16
发明人： Srivatsan Jayaraman , Onder Oz , Pradeep A. Balaraman , Roman Zbigniew Arkiszewski , Yeung Bun Choi , Songbai Zhang
摘要： Aspects of this disclosure relate to a coupler circuit configured to receive an output of a radio frequency coupler. The coupler circuit can be arranged in a daisy chain with other coupler circuits. The coupler circuit can include a switch configured to turn on based on a signal level of a direct current component of a coupler signal from another coupler circuit and pass a radio frequency component of the coupler signal when on. The coupler circuit can pass the coupler signal while a module that includes the coupler circuit is otherwise inactive.
-
公开(公告)号：US20180226927A1
公开(公告)日：2018-08-09
申请号：US15820145
申请日：2017-11-21
摘要： A power amplifier that can support multiple communication networks while maintaining power efficiency across each of the supported communication networks is disclosed. In some implementations described herein, a power amplifier module includes a bypass circuit that enables different voltage supplies to be provided to the power amplifier. By regulating the voltage supply provided to the power amplifier, the power amplifier can support different communication networks while maintaining power efficiency across a dynamic frequency range. Moreover, embodiments herein may include a buck converter, or other form of DC-DC converter, that enables the power amplifier to operate with respect to multiple communication networks. Advantageously, in certain embodiments, because wireless devices that include multiple power amplifiers often require a DC-DC converter to support at least some of the communication networks, the inclusion of the buck converter in the embodiments described herein does not add additional cost or size to the wireless device.
-
-
-
-
-
-
-
-
-
搜索结果
12 条记录 (耗时 0.014 秒)
