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    Low inductance transformer
    1.
    发明授权
    Low inductance transformer 有权
    低电感变压器

    公开(公告)号：US09048018B2

    公开(公告)日：2015-06-02

    申请号：US13895254

    申请日：2013-05-15

    Applicant: Broadcom Corporation

    Inventor： Sayedfarid Shirinfar ,  Ehsan Adabi Firouzjaei ,  Tirdad Sowlati ,  Ahmadreza Rofougaran

    IPC: H03F1/00 ,  H01F27/28 ,  H01F41/10 ,  H03F3/195 ,  H03F3/24 ,  H03F3/45 ,  H03F3/68

    CPC classification number: H01F27/2823 ,  H01F27/28 ,  H01F41/02 ,  H01F41/10 ,  H03F3/19 ,  H03F3/195 ,  H03F3/245 ,  H03F3/45076 ,  H03F3/45179 ,  H03F3/68 ,  H03F2200/405 ,  H03F2200/411 ,  H03F2200/451 ,  H03F2200/534 ,  H03F2200/537 ,  H03F2200/541 ,  H03F2203/45172 ,  H03F2203/45228 ,  H03F2203/45394 ,  Y10T29/4902

    Abstract: A transformer has first and second transformer windings including multiple differential ports. Each of the first and second transformer windings include a first transformer half-winding coupled to a first differential port of the differential ports. Each of the first and second transformer windings also include a second transformer half-winding coupled to a second differential port of the differential ports. Each of the first and second transformer windings is divided symmetrically at a common node to form the respective first and second transformer half-windings. The first transformer half-winding is configured to form one half of an inductance in each of the first and second transformer windings. The second transformer half-winding is configured to form another half of the inductance in each of the first and second transformer windings. The common node of the first transformer winding is configured to receive a supply voltage.

    Abstract translation: 变压器具有包括多个差分端口的第一和第二变压器绕组。 第一和第二变压器绕组中的每一个包括耦合到差分端口的第一差分端口的第一变压器半绕组。 第一和第二变压器绕组中的每一个还包括耦合到差分端口的第二差分端口的第二变压器半绕组。 第一和第二变压器绕组中的每一个在公共节点处对称分开以形成相应的第一和第二变压器半绕组。 第一变压器半绕组被配置为在第一和第二变压器绕组中的每一个中形成电感的一半。 第二变压器半绕组被配置为在第一和第二变压器绕组中的每一个中形成电感的另一半。 第一变压器绕组的公共节点被配置为接收电源电压。

    Power amplifiers, systems, and methods
    3.
    发明授权
    Power amplifiers, systems, and methods 有权
    功率放大器，系统和方法

    公开(公告)号：US09577577B2

    公开(公告)日：2017-02-21

    申请号：US14712743

    申请日：2015-05-14

    Applicant: BROADCOM CORPORATION

    Inventor： Tirdad Sowlati ,  Ehsan Adabi ,  Sayedfarid Shirinfar ,  Ahmadreza Rofougaran

    IPC: H03F3/04 ,  H03F1/02 ,  H03F3/195 ,  H03F3/21 ,  H03F3/24 ,  H03F3/193 ,  H03G3/20

    CPC classification number: H03F1/0205 ,  H03F1/0272 ,  H03F3/193 ,  H03F3/195 ,  H03F3/211 ,  H03F3/24 ,  H03F2200/105 ,  H03F2200/405 ,  H03F2200/451 ,  H03F2200/78 ,  H03F2203/21142 ,  H03G3/20

    Abstract: An apparatus includes a cascode amplifier. The cascode amplifier includes a first transistor and a second transistor. The cascode amplifier is configured to receive a first bias voltage, a second bias voltage, and a signal. The cascode amplifier is also configured to amplify the signal based at least on the first bias voltage and the second bias voltage. The apparatus also includes a first feedback module and a second feedback module. The first feedback module is configured to adjust the first bias voltage based at least on the amplified signal. The second feedback module is configured to adjust the second bias voltage based at least on a voltage distribution across the first transistor and the second transistor. A system and method for maintaining cascode amplifier performance are also provided.

    Abstract translation: 一种装置包括共源共栅放大器。 共源共栅放大器包括第一晶体管和第二晶体管。 共射共栅放大器被配置为接收第一偏置电压，第二偏置电压和信号。 级联放大器还被配置为至少基于第一偏置电压和第二偏置电压来放大信号。 该装置还包括第一反馈模块和第二反馈模块。 第一反馈模块被配置为至少基于放大的信号来调整第一偏置电压。 第二反馈模块被配置为至少基于跨越第一晶体管和第二晶体管的电压分布来调整第二偏置电压。 还提供了用于维持共源共栅放大器性能的系统和方法。

    Systems and methods for maintaining power amplifier performance
    4.
    发明授权
    Systems and methods for maintaining power amplifier performance 有权
    保持功率放大器性能的系统和方法

    公开(公告)号：US09065387B2

    公开(公告)日：2015-06-23

    申请号：US13714298

    申请日：2012-12-13

    Applicant: BROADCOM CORPORATION

    Inventor： Tirdad Sowlati ,  Ehsan Adabi ,  Sayedfarid Shirinfar ,  Ahmadreza Rofougaran

    IPC: H03G3/20 ,  H03F1/02 ,  H03F3/195 ,  H03F3/21 ,  H03F3/24

    CPC classification number: H03F1/0205 ,  H03F1/0272 ,  H03F3/193 ,  H03F3/195 ,  H03F3/211 ,  H03F3/24 ,  H03F2200/105 ,  H03F2200/405 ,  H03F2200/451 ,  H03F2200/78 ,  H03F2203/21142 ,  H03G3/20

    Abstract: Systems and methods for maintaining power amplifier performance are provided. A system includes a bias supply that generates a bias voltage, and at least one primary power amplifier (PA) that receives the bias voltage and a primary radio frequency (RF) input. The at least one primary PA amplifies the primary RF input based on the bias voltage. The system includes an auxiliary PA that is connected in parallel with the at least one primary PA and receives the bias voltage and an auxiliary RF input, which is a scaled version of the primary RF input. The auxiliary PA amplifies the auxiliary RF input based on the bias voltage. The system includes a detector that measures an output voltage associated with the amplified auxiliary RF input, and a comparator that compares the measured output voltage to a reference voltage. The bias supply adjusts the bias voltage based on the comparison.

    Abstract translation: 提供了用于维持功率放大器性能的系统和方法。 系统包括产生偏置电压的偏置电源以及接收偏置电压和初级射频（RF）输入的至少一个主功率放大器（PA）。 至少一个主PA基于偏置电压来放大主RF输入。 该系统包括与至少一个主PA并联连接并接收偏置电压的辅助PA和作为主RF输入的缩放版本的辅助RF输入。 辅助PA根据偏置电压放大辅助RF输入。 该系统包括测量与放大的辅助RF输入相关联的输出电压的检测器，以及将测量的输出电压与参考电压进行比较的比较器。 偏置电源根据比较调节偏置电压。

    SYSTEMS AND METHODS FOR MAINTAINING POWER AMPLIFIER PERFORMANCE
    5.
    发明申请
    SYSTEMS AND METHODS FOR MAINTAINING POWER AMPLIFIER PERFORMANCE 有权
    用于维持功率放大器性能的系统和方法

    公开(公告)号：US20140152391A1

    公开(公告)日：2014-06-05

    申请号：US13714298

    申请日：2012-12-13

    Applicant: BROADCOM CORPORATION

    Inventor： Tirdad Sowlati ,  Ehsan Adabi ,  Sayedfarid Shirinfar ,  Ahmadreza Rofougaran

    IPC: H03F1/00

    CPC classification number: H03F1/0205 ,  H03F1/0272 ,  H03F3/193 ,  H03F3/195 ,  H03F3/211 ,  H03F3/24 ,  H03F2200/105 ,  H03F2200/405 ,  H03F2200/451 ,  H03F2200/78 ,  H03F2203/21142 ,  H03G3/20

    Abstract: Systems and methods for maintaining power amplifier performance are provided. A system includes a bias supply that generates a bias voltage, and at least one primary power amplifier (PA) that receives the bias voltage and a primary radio frequency (RF) input. The at least one primary PA amplifies the primary RF input based on the bias voltage. The system includes an auxiliary PA that is connected in parallel with the at least one primary PA and receives the bias voltage and an auxiliary RF input, which is a scaled version of the primary RF input. The auxiliary PA amplifies the auxiliary RF input based on the bias voltage. The system includes a detector that measures an output voltage associated with the amplified auxiliary RF input, and a comparator that compares the measured output voltage to a reference voltage. The bias supply adjusts the bias voltage based on the comparison.

    Abstract translation: 提供了用于维持功率放大器性能的系统和方法。 系统包括产生偏置电压的偏置电源以及接收偏置电压和初级射频（RF）输入的至少一个主功率放大器（PA）。 至少一个主PA基于偏置电压来放大主RF输入。 该系统包括与至少一个主PA并联连接并接收偏置电压的辅助PA和作为主RF输入的缩放版本的辅助RF输入。 辅助PA根据偏置电压放大辅助RF输入。 该系统包括测量与放大的辅助RF输入相关联的输出电压的检测器，以及将测量的输出电压与参考电压进行比较的比较器。 偏置电源根据比较调节偏置电压。

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