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公开(公告)号：US10355724B2
公开(公告)日：2019-07-16
申请号：US15884376
申请日：2018-01-30
发明人： Jinghang Feng , Shuqi Zheng , Netsanet Gebeyehu , Ying Shi , James Phillip Young
摘要： Systems, devices and methods related to multi-band power amplifier. In some embodiments, a power amplifier module includes a power amplifier having an output stage and configured to receive a signal. The power amplifier module also includes a first programmable harmonic termination circuit in electrical communication with the output stage of the power amplifier. The first programmable harmonic termination circuit includes a first plurality of capacitors and a first plurality of switches, with at least one of the first plurality of capacitors being in electrical communication with at least one of the first plurality of switches. The power amplifier module further includes a controller configured to modify a configuration of the first plurality of switches of the first programmable harmonic termination circuit based at least in part on a second harmonic frequency of the signal.
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2.发明申请公开(公告)号：US20180120881A1
公开(公告)日：2018-05-03
申请号：US15784757
申请日：2017-10-16
发明人： Netsanet Gebeyehu , Ying Shi , Jinghang Feng
IPC分类号： G05F1/575
CPC分类号： G05F1/575
摘要： Apparatus and methods for programmable low dropout (LDO) regulators for radio frequency (RF) electronics are provided herein. In certain configurations, an LDO regulator for generating a programmable output voltage includes a regulation field-effect transistor (FET) having a drain electrically connected to the LDO regulator's output, an error amplifier that controls a gate of the regulation FET, a feedback circuit that provides a feedback signal to an inverting input of the error amplifier, an output capacitor electrically connected to the LDO regulator's output, and an alternative discharge circuit. When the output voltage of the LDO regulator is programmed from a high voltage level to a low voltage level, the alternative discharge circuit activates to discharge the output capacitor to improve the LDO regulator's transient response.
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公开(公告)号：US09882587B2
公开(公告)日：2018-01-30
申请号：US15085868
申请日：2016-03-30
发明人： Jinghang Feng , Shuqi Zheng , Netsanet Gebeyehu , Ying Shi , James Phillip Young
CPC分类号： H04B1/0067 , H03F1/565 , H03F3/191 , H03F3/217 , H03F3/2176 , H03F3/245 , H03F3/72 , H03F2200/111 , H03F2200/171 , H03F2200/18 , H03F2200/387 , H03F2200/411 , H03F2200/451 , H03F2203/7209
摘要： Systems, devices and methods related to multi-band power amplifier. In some embodiments, a power amplifier module includes a power amplifier having an output stage and configured to receive a signal. The power amplifier module also includes a first programmable harmonic termination circuit in electrical communication with the output stage of the power amplifier. The first programmable harmonic termination circuit includes a first plurality of capacitors and a first plurality of switches, with at least one of the first plurality of capacitors being in electrical communication with at least one of the first plurality of switches. The power amplifier module further includes a controller configured to modify a configuration of the first plurality of switches of the first programmable harmonic termination circuit based at least in part on a second harmonic frequency of the signal.
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4.发明授权公开(公告)号：US10310527B2
公开(公告)日：2019-06-04
申请号：US15784757
申请日：2017-10-16
发明人： Netsanet Gebeyehu , Ying Shi , Jinghang Feng
摘要： Apparatus and methods for programmable low dropout (LDO) regulators for radio frequency (RF) electronics are provided herein. In certain configurations, an LDO regulator for generating a programmable output voltage includes a regulation field-effect transistor (FET) having a drain electrically connected to the LDO regulator's output, an error amplifier that controls a gate of the regulation FET, a feedback circuit that provides a feedback signal to an inverting input of the error amplifier, an output capacitor electrically connected to the LDO regulator's output, and an alternative discharge circuit. When the output voltage of the LDO regulator is programmed from a high voltage level to a low voltage level, the alternative discharge circuit activates to discharge the output capacitor to improve the LDO regulator's transient response.
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公开(公告)号：US20180234061A1
公开(公告)日：2018-08-16
申请号：US15865194
申请日：2018-01-08
发明人： Ying Shi , Jinghang Feng
CPC分类号： H03F3/213 , H03F1/0211 , H03F1/0216 , H03F1/0261 , H03F1/56 , H03F3/19 , H03F3/195 , H03F3/211 , H03F3/245 , H03F2200/12 , H03F2200/129 , H03F2200/222 , H03F2200/267 , H03F2200/387 , H03F2200/408 , H03F2200/451 , H03F2200/456 , H03F2200/474 , H03F2200/54 , H03F2200/541 , H03F2200/555 , H03F2203/21103 , H03F2203/21131 , H04B1/40 , H04W52/0229 , H04W52/028 , H04W88/06 , Y02B70/30 , Y02D70/00 , Y02D70/122 , Y02D70/124 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/164
摘要： A power amplifier module that includes a power amplifier and a controller is presented herein. The power amplifier module may include a set of transistor stages and a plurality of bias circuits. At least one transistor stage from the set of transistor stages may be in electrical communication with a first bias circuit and a second bias circuit from the plurality of bias circuits. The first bias circuit can be configured to apply a first bias voltage to the at least one transistor stage and the second bias circuit can be configured to apply a second bias voltage to the at least one transistor stage. The controller may be configured to activate one of the first bias circuit and the second bias circuit.
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公开(公告)号：US09887669B2
公开(公告)日：2018-02-06
申请号：US14975621
申请日：2015-12-18
发明人： Ying Shi , Jinghang Feng
CPC分类号： H03F3/213 , H03F1/0211 , H03F1/0216 , H03F1/0261 , H03F1/56 , H03F3/19 , H03F3/195 , H03F3/211 , H03F3/245 , H03F2200/12 , H03F2200/129 , H03F2200/222 , H03F2200/267 , H03F2200/387 , H03F2200/408 , H03F2200/451 , H03F2200/456 , H03F2200/474 , H03F2200/54 , H03F2200/541 , H03F2200/555 , H03F2203/21103 , H03F2203/21131 , H04B1/40 , H04W52/0229 , H04W52/028 , H04W88/06 , Y02B70/30 , Y02D70/00 , Y02D70/122 , Y02D70/124 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/164
摘要： A power amplifier module that includes a power amplifier and a controller is presented herein. The power amplifier module may include a set of transistor stages and a plurality of bias circuits. At least one transistor stage from the set of transistor stages may be in electrical communication with a first bias circuit and a second bias circuit from the plurality of bias circuits. The first bias circuit can be configured to apply a first bias voltage to the at least one transistor stage and the second bias circuit can be configured to apply a second bias voltage to the at least one transistor stage. The controller may be configured to activate one of the first bias circuit and the second bias circuit.
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公开(公告)号：US09246443B2
公开(公告)日：2016-01-26
申请号：US14091155
申请日：2013-11-26
发明人： Ying Shi , Jinghang Feng
CPC分类号： H03F3/213 , H03F1/0211 , H03F1/0216 , H03F1/0261 , H03F1/56 , H03F3/19 , H03F3/195 , H03F3/211 , H03F3/245 , H03F2200/12 , H03F2200/129 , H03F2200/222 , H03F2200/267 , H03F2200/387 , H03F2200/408 , H03F2200/451 , H03F2200/456 , H03F2200/474 , H03F2200/54 , H03F2200/541 , H03F2200/555 , H03F2203/21103 , H03F2203/21131 , H04B1/40 , H04W52/0229 , H04W52/028 , H04W88/06 , Y02B70/30 , Y02D70/00 , Y02D70/122 , Y02D70/124 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/164
摘要： A power amplifier module that includes a power amplifier and a controller is presented herein. The power amplifier module may include a set of transistor stages and a plurality of bias circuits. At least one transistor stage from the set of transistor stages may be in electrical communication with a first bias circuit and a second bias circuit from the plurality of bias circuits. The first bias circuit can be configured to apply a first bias voltage to the at least one transistor stage and the second bias circuit can be configured to apply a second bias voltage to the at least one transistor stage. The controller may be configured to activate one of the first bias circuit and the second bias circuit.
摘要翻译： 本文介绍了包括功率放大器和控制器的功率放大器模块。 功率放大器模块可以包括一组晶体管级和多个偏置电路。 来自晶体管级组的至少一个晶体管级可以与来自多个偏置电路的第一偏置电路和第二偏置电路电连通。 第一偏置电路可以被配置为将第一偏置电压施加到至少一个晶体管级，并且第二偏置电路可以被配置为将第二偏置电压施加到至少一个晶体管级。 控制器可以被配置为激活第一偏置电路和第二偏置电路中的一个。
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公开(公告)号：US20230024830A1
公开(公告)日：2023-01-26
申请号：US17811659
申请日：2022-07-11
发明人： Kunal Datta , Hemin Wu , Shanshan Zhao , Sheikh Nijam Ali , Jinghang Feng
摘要： Reconfigurable output baluns for wideband push-pull amplifiers are disclosed. In certain embodiments, a mobile device includes a transceiver that generates a first radio frequency signal of a first frequency band and a second radio frequency signal of a second frequency band, and a front-end system including a push-pull power amplifier that selectively amplifies one of the first radio frequency signal or the second radio frequency signal based on a band control signal. The push-pull power amplifier includes an input balun, an output balun, and a pair of amplifiers coupled between the input balun and the output balun. The band control signal is operable to control an impedance of the output balun.
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公开(公告)号：US20220376733A1
公开(公告)日：2022-11-24
申请号：US17663151
申请日：2022-05-12
发明人： Kunal Datta , Jinghang Feng , Srivatsan Jayaraman
摘要： Apparatus and methods for reconfigurable power amplifiers are disclosed. In certain embodiments, a mobile device includes a transceiver configured to generate a first radio frequency signal of a first frequency band and a second radio frequency signal of a second frequency band, and a front-end system including a push-pull power amplifier configured to selectively amplify one of the first radio frequency signal or the second radio frequency signal based on a band control signal. The push-pull power amplifier includes an input balun, an output balun, and a pair of amplifiers coupled between the input balun and the output balun. The band control signal is operable to control an output capacitance of the pair of amplifiers.
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公开(公告)号：US20220376662A1
公开(公告)日：2022-11-24
申请号：US17663077
申请日：2022-05-12
发明人： Kunal Datta , Jinghang Feng , Srivatsan Jayaraman
摘要： Apparatus and methods for reconfigurable power amplifiers are disclosed. In certain embodiments, a mobile device includes a transceiver configured to generate a first radio frequency signal of a first frequency band and a second radio frequency signal of a second frequency band, and a front-end system including a push-pull power amplifier configured to selectively amplify one of the first radio frequency signal or the second radio frequency signal based on a band control signal. The push-pull power amplifier includes an input balun, an output balun, and a pair of amplifiers coupled between the input balun and the output balun. The band control signal is operable to control an input capacitance of the pair of amplifiers.
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