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公开(公告)号：US09837968B2
公开(公告)日：2017-12-05
申请号：US15375502
申请日：2016-12-12
Applicant: QUALCOMM Incorporated
Inventor： Rui Xu , Li-Chung Chang
CPC classification number: H03F1/26 , H03F1/223 , H03F3/19 , H03F3/195 , H03F3/211 , H03F3/245 , H03F3/68 , H03F3/72 , H03F2200/294 , H03F2200/421 , H03F2200/451 , H03F2200/492 , H03F2200/537 , H03F2200/541 , H03F2203/21145
Abstract: Amplifiers with noise splitting to improve noise figure are disclosed. In an exemplary design, an apparatus (e.g., a wireless device, an integrated circuit, etc.) includes a plurality of amplifier circuits and at least one interconnection circuit. The amplifier circuits receive an input radio frequency (RF) signal. The interconnection circuit(s) are coupled between the plurality of amplifier circuits. Each interconnection circuit is closed to short the outputs or internal nodes of two amplifier circuits coupled to that interconnection circuit. The plurality of amplifier circuits may include a plurality of gain circuits coupled to a plurality of current buffers, one gain circuit and one current buffer for each amplifier circuit. Each amplifier circuit provides an output current, which may include a portion of the current from each of the plurality of gain circuits when the plurality of amplifier circuits are enabled.
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公开(公告)号：US09642166B2
公开(公告)日：2017-05-02
申请号：US14644010
申请日：2015-03-10
Applicant: QUALCOMM Incorporated
Inventor： Sang Hyun Woo , Wingching Vincent Leung , Li-Chung Chang
IPC: H04B7/00 , H04W74/08 , H04B1/401 , H03F1/22 , H03F3/193 , H03F3/24 , H03F3/68 , H03F3/72 , H04B1/04
CPC classification number: H04W74/0833 , H03F1/223 , H03F3/193 , H03F3/24 , H03F3/245 , H03F3/68 , H03F3/72 , H03F2200/111 , H03F2200/294 , H03F2200/492 , H03F2200/81 , H03F2200/87 , H04B1/401 , H04B2001/0408
Abstract: An apparatus includes a first amplifier circuit and a second amplifier circuit. The first amplifier circuit has a first output coupled to a first load circuit in a multi-output mode, and the second amplifier circuit has a second output coupled to a second load circuit in the multi-output mode. The apparatus further includes a first divert circuit and a second divert circuit. The first divert circuit is configured to divert a first portion of a first amplified signal from the first amplifier circuit to the second load circuit in the multi-output mode. The second divert circuit is configured to divert a first portion of a second amplified signal from the second amplifier circuit to the first load circuit in the multi-output mode.
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公开(公告)号：US20170093343A1
公开(公告)日：2017-03-30
申请号：US15375502
申请日：2016-12-12
Applicant: QUALCOMM Incorporated
Inventor： Rui Xu , Li-Chung Chang
CPC classification number: H03F1/26 , H03F1/223 , H03F3/19 , H03F3/195 , H03F3/211 , H03F3/245 , H03F3/68 , H03F3/72 , H03F2200/294 , H03F2200/421 , H03F2200/451 , H03F2200/492 , H03F2200/537 , H03F2200/541 , H03F2203/21145
Abstract: Amplifiers with noise splitting to improve noise figure are disclosed. In an exemplary design, an apparatus (e.g., a wireless device, an integrated circuit, etc.) includes a plurality of amplifier circuits and at least one interconnection circuit. The amplifier circuits receive an input radio frequency (RF) signal. The interconnection circuit(s) are coupled between the plurality of amplifier circuits. Each interconnection circuit is closed to short the outputs or internal nodes of two amplifier circuits coupled to that interconnection circuit. The plurality of amplifier circuits may include a plurality of gain circuits coupled to a plurality of current buffers, one gain circuit and one current buffer for each amplifier circuit. Each amplifier circuit provides an output current, which may include a portion of the current from each of the plurality of gain circuits when the plurality of amplifier circuits are enabled.
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公开(公告)号：US09608437B2
公开(公告)日：2017-03-28
申请号：US14024833
申请日：2013-09-12
Applicant: QUALCOMM Incorporated
Inventor： Ahmed Abdel Monem Youssef , Prasad Srinivasa Siva Gudem , Li-Chung Chang , Ehab Ahmed Sobhy Abdel Ghany
CPC classification number: H02H9/046 , H01L27/0255 , H03F1/223 , H03F1/523 , H03F2200/336 , H03F2200/441 , H03F2200/444
Abstract: Techniques for improving electro-static discharge (ESD) performance in integrated circuits (IC's). In an aspect, one or more protective diodes are provided between various nodes of the IC. For example, protective diode(s) may be provided between the drain and gate of an amplifier input transistor, and/or between the drain and ground, etc. In certain exemplary embodiments, the amplifier may be a cascode amplifier. Further aspects for effectively dealing with ESD phenomena are described.
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公开(公告)号：US09559640B2
公开(公告)日：2017-01-31
申请号：US14632646
申请日：2015-02-26
Applicant: QUALCOMM Incorporated
Inventor： Ahmed Abdel Monem Youssef , Prasad Srinivasa Siva Gudem , Eugene Robert Worley , Dongling Pan , Li-Chung Chang
CPC classification number: H03F1/523 , H01L27/0255 , H03F1/52 , H03F3/193 , H03F3/211 , H03F3/3016 , H03F3/68 , H03F2200/294 , H03F2200/441 , H03F2200/444 , H03F2200/451 , H03F2200/489 , H03F2203/21106
Abstract: A CMOS amplifier including electrostatic discharge (ESD) protection circuits is disclosed. In one embodiment, the CMOS amplifier may include a PMOS transistor, a NMOS transistor, primary protection diodes, and one or more auxiliary protection diodes to limit a voltage difference between terminals of the CMOS amplifier. In some embodiments, the auxiliary protection diodes may limit the voltage difference between an input terminal of the CMOS amplifier and a supply voltage, the input terminal of the CMOS amplifier and ground, and the input terminal and the output terminal of the CMOS amplifier.
Abstract translation: 公开了一种包括静电放电（ESD）保护电路的CMOS放大器。 在一个实施例中，CMOS放大器可以包括PMOS晶体管，NMOS晶体管，初级保护二极管和一个或多个辅助保护二极管，以限制CMOS放大器的端子之间的电压差。 在一些实施例中，辅助保护二极管可以限制CMOS放大器的输入端和电源电压之间的电压差，CMOS放大器的输入端和地，以及CMOS放大器的输入端和输出端。
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Patent Agency Ranking
公开(公告)号：US20160254789A1
公开(公告)日：2016-09-01
申请号：US14632646
申请日：2015-02-26
Applicant: QUALCOMM Incorporated
Inventor： Ahmed Abdel Monem Youssef , Prasad Srinivasa Siva Gudem , Eugene Robert Worley , Dongling Pan , Li-Chung Chang
CPC classification number: H03F1/523 , H01L27/0255 , H03F1/52 , H03F3/193 , H03F3/211 , H03F3/3016 , H03F3/68 , H03F2200/294 , H03F2200/441 , H03F2200/444 , H03F2200/451 , H03F2200/489 , H03F2203/21106
Abstract: A CMOS amplifier including electrostatic discharge (ESD) protection circuits is disclosed. In one embodiment, the CMOS amplifier may include a PMOS transistor, a NMOS transistor, primary protection diodes, and one or more auxiliary protection diodes to limit a voltage difference between terminals of the CMOS amplifier. In some embodiments, the auxiliary protection diodes may limit the voltage difference between an input terminal of the CMOS amplifier and a supply voltage, the input terminal of the CMOS amplifier and ground, and the input terminal and the output terminal of the CMOS amplifier.
Abstract translation: 公开了一种包括静电放电（ESD）保护电路的CMOS放大器。 在一个实施例中，CMOS放大器可以包括PMOS晶体管，NMOS晶体管，初级保护二极管和一个或多个辅助保护二极管，以限制CMOS放大器的端子之间的电压差。 在一些实施例中，辅助保护二极管可以限制CMOS放大器的输入端和电源电压之间的电压差，CMOS放大器的输入端和地，以及CMOS放大器的输入端和输出端。
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7.发明申请公开(公告)号：US20150351131A1
公开(公告)日：2015-12-03
申请号：US14644010
申请日：2015-03-10
Applicant: QUALCOMM Incorporated
Inventor： Sang Hyun Woo , Wingching Vincent Leung , Li-Chung Chang
CPC classification number: H04W74/0833 , H03F1/223 , H03F3/193 , H03F3/24 , H03F3/245 , H03F3/68 , H03F3/72 , H03F2200/111 , H03F2200/294 , H03F2200/492 , H03F2200/81 , H03F2200/87 , H04B1/401 , H04B2001/0408
Abstract: An apparatus includes a first amplifier circuit and a second amplifier circuit. The first amplifier circuit has a first output coupled to a first load circuit in a multi-output mode, and the second amplifier circuit has a second output coupled to a second load circuit in the multi-output mode. The apparatus further includes a first divert circuit and a second divert circuit. The first divert circuit is configured to divert a first portion of a first amplified signal from the first amplifier circuit to the second load circuit in the multi-output mode. The second divert circuit is configured to divert a first portion of a second amplified signal from the second amplifier circuit to the first load circuit in the multi-output mode.
Abstract translation: 一种装置包括第一放大器电路和第二放大器电路。 第一放大器电路具有以多输出模式耦合到第一负载电路的第一输出，并且第二放大器电路具有以多输出模式耦合到第二负载电路的第二输出。 该装置还包括第一转向电路和第二转向电路。 第一转接电路被配置为以多输出模式将第一放大信号的第一部分从第一放大器电路转移到第二负载电路。 第二转换电路被配置为以多输出模式将来自第二放大器电路的第二放大信号的第一部分转移到第一负载电路。
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8.发明授权公开(公告)号：US09059665B2
公开(公告)日：2015-06-16
申请号：US13775036
申请日：2013-02-22
Applicant: QUALCOMM Incorporated
Inventor： Ahmed A. Youssef , Li-Chung Chang
CPC classification number: H03F3/16 , H03F1/223 , H03F3/193 , H03F3/245 , H03F3/68 , H03F3/72 , H03F2200/111 , H03F2200/294 , H03F2200/372 , H03F2200/451 , H03F2200/489 , H03F2200/541 , H03G1/0052
Abstract: Multi-output amplifiers with configurable source degeneration inductance and having good performance are disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit) includes a gain transistor and a configurable degeneration inductor for an amplifier. The gain transistor receives an input signal and provides an amplified signal. The amplifier provides a single output signal in a first operating mode or a plurality of output signals in a second operating mode. The configurable degeneration inductor is coupled to the gain transistor and provides a first source degeneration inductance in the first operating mode or a second source degeneration inductance in the second operating mode. The second source degeneration inductance is less than the first source degeneration inductance and may be dependent on the number of output signals generated in the second operating mode.
Abstract translation: 公开了具有可配置的源变性电感并具有良好性能的多输出放大器。 在示例性设计中，装置（例如，无线装置或集成电路）包括用于放大器的增益晶体管和可配置的退化电感器。 增益晶体管接收输入信号并提供放大信号。 放大器在第一操作模式中提供单个输出信号或在第二操作模式中提供多个输出信号。 可配置退化电感器耦合到增益晶体管，并且在第二操作模式中提供第一操作模式中的第一源极退化电感或第二源极退化电感。 第二源极退化电感小于第一源极退化电感，并且可以取决于在第二操作模式中产生的输出信号的数量。
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公开(公告)号：US20150070803A1
公开(公告)日：2015-03-12
申请号：US14024833
申请日：2013-09-12
Applicant: QUALCOMM Incorporated
Inventor： Ahmed Abdel Monem Youssef , Prasad Srinivasa Siva Gudem , Li-Chung Chang , Ehab Ahmed Sobhy Abdel Ghany
IPC: H02H9/04
CPC classification number: H02H9/046 , H01L27/0255 , H03F1/223 , H03F1/523 , H03F2200/336 , H03F2200/441 , H03F2200/444
Abstract: Techniques for improving electro-static discharge (ESD) performance in integrated circuits (IC's). In an aspect, one or more protective diodes are provided between various nodes of the IC. For example, protective diode(s) may be provided between the drain and gate of an amplifier input transistor, and/or between the drain and ground, etc. In certain exemplary embodiments, the amplifier may be a cascode amplifier. Further aspects for effectively dealing with ESD phenomena are described.
Abstract translation: 用于提高集成电路（IC）中静电放电（ESD）性能的技术。 在一个方面，在IC的各个节点之间提供一个或多个保护二极管。 例如，可以在放大器输入晶体管的漏极和栅极之间和/或在漏极和地之间提供保护二极管等。在某些示例性实施例中，放大器可以是共源共栅放大器。 描述了有效处理ESD现象的其他方面。
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10.发明授权Single-input multiple-output amplifiers with independent gain control per output 有权单输入多输出放大器，每个输出具有独立的增益控制公开(公告)号：US08903343B2
公开(公告)日：2014-12-02
申请号：US13750905
申请日：2013-01-25
Applicant: QUALCOMM Incorporated
Inventor： Christian Holenstein , Aleksandar Miodrag Tasic , Li-Chung Chang , Allen He , Rui Xu , Ehab Ahmed Sobhy Abdel Ghany , Wingching Vincent Leung , Ahmed Abdel Monem Youssef , Sang Hyun Woo
IPC: H04B1/06 , H04B1/16 , H03F1/02 , H03F1/22 , H03F3/193 , H03F3/68 , H03F3/72 , H04W88/06 , H03G3/30 , H03G5/24
CPC classification number: H04B1/16 , H03F1/0277 , H03F1/223 , H03F3/193 , H03F3/68 , H03F3/72 , H03F2200/111 , H03F2200/294 , H03F2200/489 , H03F2200/492 , H03F2200/541 , H03G3/30 , H03G3/3052 , H03G5/24 , H04W88/06
Abstract: Amplifiers with multiple outputs and separate gain control per output are disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit) may include first and second amplifier circuits. The first amplifier circuit may receive and amplify an input radio frequency (RF) signal based on a first variable gain and provide a first amplified RF signal. The second amplifier circuit may receive and amplify the input RF signal based on a second variable gain and provide a second amplified RF signal. The input RF signal may include a plurality of transmitted signals being received by the wireless device. The first variable gain may be adjustable independently of the second variable gain. Each variable gain may be set based on the received power level of at least one transmitted signal being received by the wireless device.
Abstract translation: 公开了具有多个输出和每个输出的单独的增益控制的放大器。 在示例性设计中，设备（例如，无线设备或集成电路）可以包括第一和第二放大器电路。 第一放大器电路可以基于第一可变增益接收和放大输入射频（RF）信号，并提供第一放大RF信号。 第二放大器电路可以基于第二可变增益接收和放大输入RF信号，并提供第二放大RF信号。 输入RF信号可以包括由无线设备接收的多个发送信号。 第一可变增益可以独立于第二可变增益来调节。 可以基于由无线设备接收的至少一个发送信号的接收功率电平来设置每个可变增益。
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