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公开(公告)号：US10483918B2
公开(公告)日：2019-11-19
申请号：US15716493
申请日：2017-09-26
发明人： Boshi Jin , Jing-Hwa Chen , Paul T. DiCarlo , Steven Christopher Sprinkle , Florinel G. Balteanu , David Scott Whitefield
摘要： A power amplifier can include a carrier amplifier having first and second differential amplification cells with outputs coupled by a primary loop of a carrier transformer, and a peaking amplifier having first and second differential amplification cells with outputs coupled by a primary loop of a peaking transformer. The power amplifier can further include a combiner having a quarter-wave circuit implemented between the secondary loop of the carrier transformer and a secondary loop of the peaking transformer. The quarter-wave circuit can be configured to provide a characteristic impedance, such that the carrier and peaking amplifiers are presented with an impedance that is approximately the same as the characteristic impedance when both of the carrier and peaking amplifiers are turned on, and the carrier amplifier is presented with an impedance that is approximately twice the characteristic impedance when the carrier amplifier is turned on and the peaking amplifier is turned off.
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公开(公告)号：US20180138862A1
公开(公告)日：2018-05-17
申请号：US15811394
申请日：2017-11-13
CPC分类号： H03F1/0227 , H03F1/223 , H03F1/32 , H03F3/2176 , H03F3/24 , H03F3/245 , H03F3/3022 , H03F3/45206 , H03F2200/102 , H03F2200/451 , H04B1/0483
摘要： Disclosed herein are circuits, devices and methods that address challenges associated with power amplifier systems. A power amplifier system includes two or more fast error amplifiers coupled to corresponding power amplifiers. The fast error amplifiers are configured to generate envelope tracking signals based on a signal envelope, the envelope tracking signals modifying a DC-DC regulated voltage from a DC-DC converter to more efficiently operate the power amplifiers. By splitting the envelope tracking between two or more fast error amplifiers and amplification between corresponding two or more power amplifiers, the power, frequency or bandwidth, linearity, signal-to-noise ratio, efficiency, or the like of the power amplifier system can be improved. Wireless communications configurations with such power amplifier systems can provide uplink carrier aggregation and/or cellular signals based on standards and protocols that require increased bandwidth and/or power.
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公开(公告)号：US10812023B2
公开(公告)日：2020-10-20
申请号：US16741512
申请日：2020-01-13
摘要： Disclosed herein are circuits, devices and methods that address challenges associated with power amplifier systems. A power amplifier system includes two or more fast error amplifiers coupled to corresponding power amplifiers. The fast error amplifiers are configured to generate envelope tracking signals based on a signal envelope, the envelope tracking signals modifying a DC-DC regulated voltage from a DC-DC converter to more efficiently operate the power amplifiers. By splitting the envelope tracking between two or more fast error amplifiers and amplification between corresponding two or more power amplifiers, the power, frequency or bandwidth, linearity, signal-to-noise ratio, efficiency, or the like of the power amplifier system can be improved. Wireless communications configurations with such power amplifier systems can provide uplink carrier aggregation and/or cellular signals based on standards and protocols that require increased bandwidth and/or power.
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公开(公告)号：US10574192B2
公开(公告)日：2020-02-25
申请号：US16225912
申请日：2018-12-19
发明人： Yu Zhu , Boshi Jin , Steven Christopher Sprinkle , Florinel G. Balteanu , Oleksiy Klimashov , Dylan Charles Bartle , Paul T. DiCarlo
IPC分类号： H03F1/32 , H04B1/48 , H03F3/24 , H03F3/193 , H03F3/19 , H03F1/02 , H03F3/195 , H03F3/21 , H03F3/45 , H04B1/40 , H04B1/3827 , H04B1/525 , H04W88/02
摘要： A linearization circuit that reduces intermodulation distortion in an amplifier output receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency. The linearization circuit generates an envelope signal based at least in part on a power level of the first signal and adjusts a magnitude of the difference signal based on the envelope signal. When the amplifier receives the first signal at an input terminal and the adjusted signal at a second terminal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation products that result from the intermodulation of the first frequency and the second frequency.
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5.发明授权公开(公告)号：US10536116B2
公开(公告)日：2020-01-14
申请号：US16540007
申请日：2019-08-13
摘要： Disclosed herein are circuits, devices and methods that address challenges associated with power amplifier systems. A power amplifier system includes two or more fast error amplifiers coupled to corresponding power amplifiers. The fast error amplifiers are configured to generate envelope tracking signals based on a signal envelope, the envelope tracking signals modifying a DC-DC regulated voltage from a DC-DC converter to more efficiently operate the power amplifiers. By splitting the envelope tracking between two or more fast error amplifiers and amplification between corresponding two or more power amplifiers, the power, frequency or bandwidth, linearity, signal-to-noise ratio, efficiency, or the like of the power amplifier system can be improved. Wireless communications configurations with such power amplifier systems can provide uplink carrier aggregation and/or cellular signals based on standards and protocols that require increased bandwidth and/or power.
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公开(公告)号：US10181820B2
公开(公告)日：2019-01-15
申请号：US15596149
申请日：2017-05-16
摘要： Disclosed herein are power amplification systems that are dynamically biased based on a signal indicative of an envelope of the signal being amplified. The power amplification systems include a power amplifier configured to amplify an input radio-frequency (RF) signal to generate an output RF signal when biased by a biasing signal. The power amplification systems also include a bias component configured to generate the biasing signal based on an envelope signal indicative of an envelope of the input RF signal. The biasing signal can improve or enhance the linearity of the power amplification systems.
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公开(公告)号：US10164582B2
公开(公告)日：2018-12-25
申请号：US15817591
申请日：2017-11-20
发明人： Yu Zhu , Boshi Jin , Steven Christopher Sprinkle , Florinel G. Balteanu , Oleksiy Klimashov , Dylan Charles Bartle , Paul T. DiCarlo
IPC分类号： H04B1/04 , H03F3/45 , H03F1/32 , H03F3/24 , H03F3/193 , H03F3/19 , H04B1/48 , H04B1/40 , H04B1/3827 , H04B1/525 , H03F1/02 , H03F3/195 , H03F3/21 , H04W88/02
摘要： A linearization circuit that reduces intermodulation distortion in an amplifier output receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency. The linearization circuit generates an envelope signal based at least in part on a power level of the first signal and adjusts a magnitude of the difference signal based on the envelope signal. When the amplifier receives the first signal at an input terminal and the adjusted signal at a second terminal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation products that result from the intermodulation of the first frequency and the second frequency.
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公开(公告)号：US20180167037A1
公开(公告)日：2018-06-14
申请号：US15817591
申请日：2017-11-20
发明人： Yu Zhu , Boshi Jin , Steven Christopher Sprinkle , Florinel G. Balteanu , Oleksiy Klimashov , Dylan Charles Bartle , Paul T. DiCarlo
IPC分类号： H03F1/32 , H03F3/45 , H04B1/40 , H04B1/3827 , H04B1/525 , H03F3/19 , H03F1/02 , H03F3/195 , H03F3/21 , H03F3/193 , H03F3/24 , H04B1/48
CPC分类号： H03F1/3205 , H03F1/0266 , H03F1/32 , H03F3/19 , H03F3/193 , H03F3/195 , H03F3/211 , H03F3/245 , H03F3/4508 , H03F3/45179 , H03F2200/102 , H03F2200/105 , H03F2200/15 , H03F2200/294 , H03F2200/451 , H03F2201/3215 , H03F2201/3236 , H04B1/3827 , H04B1/40 , H04B1/48 , H04B1/525 , H04B2001/485 , H04W88/02
摘要： A linearization circuit that reduces intermodulation distortion in an amplifier output receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency. The linearization circuit generates an envelope signal based at least in part on a power level of the first signal and adjusts a magnitude of the difference signal based on the envelope signal. When the amplifier receives the first signal at an input terminal and the adjusted signal at a second terminal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation products that result from the intermodulation of the first frequency and the second frequency.
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公开(公告)号：US20170005625A1
公开(公告)日：2017-01-05
申请号：US15191960
申请日：2016-06-24
发明人： Yu Zhu , Boshi Jin , Steven Christopher Sprinkle , Florinel G. Balteanu , Oleksiy Klimashov , Dylan Charles Bartle , Paul T. DiCarlo
CPC分类号： H03F1/3205 , H03F1/0266 , H03F1/32 , H03F3/19 , H03F3/193 , H03F3/195 , H03F3/211 , H03F3/245 , H03F3/4508 , H03F3/45179 , H03F2200/102 , H03F2200/105 , H03F2200/15 , H03F2200/294 , H03F2200/451 , H03F2201/3215 , H03F2201/3236 , H04B1/3827 , H04B1/40 , H04B1/48 , H04B1/525 , H04B2001/485 , H04W88/02
摘要： A linearization circuit that reduces intermodulation distortion in an amplifier output receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency. The linearization circuit generates an envelope signal based at least in part on a power level of the first signal and adjusts a magnitude of the difference signal based on the envelope signal. When the amplifier receives the first signal at an input terminal and the adjusted signal at a second terminal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation products that result from the intermodulation of the first frequency and the second frequency.
摘要翻译： 降低放大器输出中的互调失真的线性化电路接收包括第一频率和第二频率的第一信号，并产生具有大致等于第一频率和第二频率的差的频率的差分信号。 线性化电路至少部分地基于第一信号的功率电平产生包络信号，并且基于包络信号来调整差分信号的幅度。 当放大器在输入端接收第一信号并且在第二端接收经调整的信号时，经调整的信号与第一信号之间的互调消除由第一频率和第二信号的互调产生的互调产物的至少一部分 频率。
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公开(公告)号：US20200259459A1
公开(公告)日：2020-08-13
申请号：US16741512
申请日：2020-01-13
摘要： Disclosed herein are circuits, devices and methods that address challenges associated with power amplifier systems. A power amplifier system includes two or more fast error amplifiers coupled to corresponding power amplifiers. The fast error amplifiers are configured to generate envelope tracking signals based on a signal envelope, the envelope tracking signals modifying a DC-DC regulated voltage from a DC-DC converter to more efficiently operate the power amplifiers. By splitting the envelope tracking between two or more fast error amplifiers and amplification between corresponding two or more power amplifiers, the power, frequency or bandwidth, linearity, signal-to-noise ratio, efficiency, or the like of the power amplifier system can be improved. Wireless communications configurations with such power amplifier systems can provide uplink carrier aggregation and/or cellular signals based on standards and protocols that require increased bandwidth and/or power.
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