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71. 发明公开

EP3039784A1 DRIVER CIRCUIT AND ASSOCIATED POWER AMPLIFIER ASSEMBLY, RADIO BASE STATION AND METHOD 审中-公开
标题翻译：驱动电路与相关POWER AMP集团，无线电基站和方法
公开(公告)号：EP3039784A1
公开(公告)日：2016-07-06
申请号：EP13892200.0
申请日：2013-08-29
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： WU, Zhanyu
IPC分类号： H03F3/20
CPC分类号： H03F1/56 , H03F1/0205 , H03F1/305 , H03F3/005 , H03F3/193 , H03F3/21 , H03F3/245 , H03F3/72 , H03F2200/18 , H03F2200/21 , H03F2200/267 , H03F2200/27 , H03F2200/451 , H03F2200/522 , H03F2200/555 , H04W88/08
摘要： A driver circuit for a power amplifier of a radio base station. The driver circuit comprises a radio frequency input, an output for connection to a power amplifier, a combiner connected to the radio frequency input and a first bias leg. The first bias leg comprises a bias source input, a first capacitor leg and a second capacitor, wherein the first capacitor leg is connected between the combiner and ground, and the second capacitor is connected between the combiner and ground. The first capacitor leg comprises a first switch and a first capacitor, the first switch being provided between the combiner and the first capacitor such that, in a first state, the first capacitor is connected to the combiner and, in a second state, the first capacitor is disconnected from the combiner. A corresponding power amplifier assembly, radio base station and method are also presented.

72. 发明公开

EP3036830A1 A METHOD AND APPARATUS FOR ENVELOPE TRACKING 有权转让
标题翻译：方法和设备包络跟踪
公开(公告)号：EP3036830A1
公开(公告)日：2016-06-29
申请号：EP14867856.8
申请日：2014-12-02
申请人： Huawei Technologies Co., Ltd.
发明人： MIDYA, Pallab , AI-QAQ, Wael , JIANG, Hong
IPC分类号： H03F3/20
CPC分类号： H03F1/0222 , H03F1/3241 , H03F3/195 , H03F3/24 , H03F2200/102 , H03F2200/336 , H03F2200/555
摘要： An apparatus for providing envelope tracking (ET), comprising: a power amplifier (PA) load variation pre-distortion, and an open loop ET modulator operatively coupled to the PA load variation pre-distortion, wherein the PA load variation pre-distortion is configured to determine a load variation at a PA supply voltage path based on an envelope signal generated from an input signal received by a PA, and use the load variation in a digital domain to generate a pre-distortion compensation signal that attempts to correct the envelope signal such that the PA supply voltage matches the envelope signal, and wherein the open loop ET modulator is configured to generate a PA supply voltage on the PA supply voltage path using the pre-distortion compensation signal.

73. 发明授权

EP2171840B1 AMPLIFIER WITH CONFIGURABLE DC-COUPLED OR AC-COUPLED OUTPUT 有权
标题翻译：具有可配置直流耦合或交流耦合输出的放大器
公开(公告)号：EP2171840B1
公开(公告)日：2016-04-13
申请号：EP08771847.4
申请日：2008-06-24
申请人： QUALCOMM Incorporated
发明人： CHILAKAPATI, Uma , PULINCHERRY, Anurag , BAZARJANI, Seyfollah
IPC分类号： H03F3/30 , H03F3/45 , H03F3/68 , H03F3/20
CPC分类号： H03F3/20 , H03F3/3022 , H03F3/45192 , H03F3/45475 , H03F3/68 , H03F2200/03 , H03F2203/45101

74. 发明公开

EP2887542A4 DOHERTY POWER AMPLIFICATION CIRCUIT 有权
标题翻译：多尔蒂LEISTUNGSVERSTÄRKERSCHALTUNG
公开(公告)号：EP2887542A4
公开(公告)日：2016-03-09
申请号：EP13838990
申请日：2013-09-18
申请人： ZTE CORP
发明人： YU MINDE , DAI LI , QIN TIANYIN , ZHAI WENYU
IPC分类号： H03F1/07 , H03F1/02 , H03F3/06 , H03F3/20 , H03F3/24 , H03F3/60
CPC分类号： H03F1/02 , H03F1/0288 , H03F3/20 , H03F3/245 , H03F3/602 , H03F2200/171 , H03F2200/204 , H03F2200/207
摘要： A Doherty power amplifier circuit is provided, which includes a power divider circuit, and a power amplifier circuit connected with the power divider circuit; this Doherty power amplifier circuit further includes a combination output circuit connected with the power amplifier circuit, wherein the combination output circuit is a rheostat filter coupler, or a rheostat filter, or a rheostat coupler. By adopting the circuit, the size of a power amplifier circuit can be reduced, the cost of the power amplifier circuit can be lowered, and the efficiency of a power amplifier can be improved.
摘要翻译：提供了Doherty功率放大器电路，其包括功率分配器电路和与功率分配器电路连接的功率放大器电路; 该Doherty功率放大器电路还包括与功率放大器电路连接的组合输出电路，其中组合输出电路是变阻器滤波器耦合器或变阻器滤波器或变阻器耦合器。通过采用该电路，可以减小功率放大器电路的尺寸，降低功率放大器电路的成本，并且可以提高功率放大器的效率。

75. 发明公开

EP2472721A3 Amplifier with configurable DC-coupled or AC-coupled output 审中-公开
公开(公告)号：EP2472721A3
公开(公告)日：2016-01-20
申请号：EP12002311.4
申请日：2008-06-24
申请人： Qualcomm Incorporated
发明人： Chilakapati, Uma , Pulincherry, Anurag , Bazarjani, Seyfollah
IPC分类号： H03F3/20 , H03F3/30 , H03F3/45 , H03F3/68
CPC分类号： H03F3/20 , H03F3/3022 , H03F3/45192 , H03F3/45475 , H03F3/68 , H03F2200/03 , H03F2203/45101
摘要： A multi-mode amplifier with configurable DC-coupled or AC-coupled output is described. In one design, the multi-mode amplifier includes an amplifier and at least one DC level shifting circuit. The amplifier receives and amplifies an input signal and provides an output signal that is suitable for DC coupling to a load in a DC-coupled mode and for AC coupling to the load in an AC-coupled mode. The at least one DC level shifting circuit performs DC level shifting for at least one (e.g., input and/or output) common-mode voltage of the amplifier and is controlled based on whether the amplifier is operating in the DC-coupled or AC-coupled mode. The amplifier operates between VDD and VNEG supplies in the DC-coupled mode and between VDD and VSS supplies in the AC-coupled mode. The amplifier may include at least one gain stage, an internal DC level shifting circuit, and an output stage.

76. 发明公开

EP2858251A4 DISTORTION COMPENSATION DEVICE AND DISTORTION COMPENSATION METHOD 有权
标题翻译：失真补偿装置和失真补偿过程
公开(公告)号：EP2858251A4
公开(公告)日：2015-05-27
申请号：EP12878006
申请日：2012-05-29
申请人： FUJITSU LTD
发明人： MATSUBARA SATOSHI , HAMANO MITSUHARU , SHAKO HIDEHARU
IPC分类号： H04B1/04 , H03F1/32 , H03F3/20
CPC分类号： H03F1/3247 , H03F1/3241 , H03F3/189 , H03F3/21 , H03F3/245 , H03F2200/336 , H03F2200/465 , H03F2201/3215 , H03F2201/3227 , H03F2201/3233 , H04B1/0475 , H04B2001/0425

77. 发明公开

EP2538550A4 DOHERTY POWER AMPLIFIER DEVICE AND POWER AMPLIFICATION METHOD 审中-公开
标题翻译： Doherty功放和性能增强程序
公开(公告)号：EP2538550A4
公开(公告)日：2014-09-10
申请号：EP11832075
申请日：2011-10-27
申请人： ZTE CORP
发明人： CUI XIAOJUN , CHEN HUAZHANG , DUAN BIN , LIU JIANLI
IPC分类号： H03F1/07 , H03F1/02 , H03F3/195 , H03F3/20 , H03F3/24 , H03F3/68
CPC分类号： H03F3/68 , H03F1/0288 , H03F3/195 , H03F3/245

78. 发明公开

EP2744103A1 Boosted differential Class H Amplifier 审中-公开
标题翻译： Differentieller Klasse H-Verstärker
公开(公告)号：EP2744103A1
公开(公告)日：2014-06-18
申请号：EP12368034.0
申请日：2012-12-13
申请人： Dialog Semiconductor GmbH
发明人： Petersen, Holger
IPC分类号： H03F1/02 , H03F3/20
CPC分类号： H03F3/68 , H03F1/0227 , H03F3/20
摘要： A differential audio amplifier system and a related system to generate an output signal free or with only very limited clipping are disclosed. It provides a solution to solve the problem of limited electrical speaker amplifier output power available (e.g. inside battery driver applications). A differential speaker amplifier has positive and negative supply rails. In a first embodiment of the disclosure the negative supply rail is connected to the output of an inverting buck-boost converter and the positive supply rail is directly connected to VSS voltage. In a second embodiment of the disclosure the positive supply rail is connected to the output of a buck-boost converter and the negative supply rail is directly connected to a positive battery voltage.
摘要翻译：公开了一种差分音频放大器系统和相关系统，用于产生无限制或仅具有非常有限限幅的输出信号。它提供了解决有限的电扬声器放大器输出功率（例如在电池驱动器应用内）的问题的解决方案。差分扬声器放大器具有正负电源轨。在本公开的第一实施例中，负电源轨连接到反相降压 - 升压转换器的输出，并且正电源轨直接连接到VSS电压。在本公开的第二实施例中，正电源轨连接到降压 - 升压转换器的输出，负电源轨直接连接到正电池电压。

79. 发明公开

EP2329594A4 LOW DISTORTION CASCODE AMPLIFIER CIRCUIT 审中-公开
标题翻译：具有低失真CASCADE放大电路
公开(公告)号：EP2329594A4
公开(公告)日：2014-02-19
申请号：EP09812522
申请日：2009-09-08
申请人： THOMAS ROGOFF AUDIO PTY LTD
发明人： THOMAS CLIVE
IPC分类号： H03F1/22 , H03F1/32 , H03F3/183 , H03F3/20 , H03F3/26 , H03F3/30
CPC分类号： H03F1/22 , H03F1/32 , H03F3/183 , H03F3/3016 , H03F3/3022 , H03F2200/03

80. 发明授权

EP1863183B1 TRANSMITTING APPARATUS, COMMUNICATION DEVICE, AND MOBILE WIRELESS UNIT 有权
标题翻译：传输设备，通信设备和无线移动单元
公开(公告)号：EP1863183B1
公开(公告)日：2013-07-31
申请号：EP06729570.9
申请日：2006-03-20
申请人： Panasonic Corporation
发明人： OKA, Tatsuto c/o Matsushita Electric Industrial. Co., Ltd.
IPC分类号： H04B1/04 , H03F1/32 , H03F3/20 , H03F1/02
CPC分类号： H03F1/3282 , H03F1/02 , H03F1/0205 , H03F1/32 , H03F1/3247 , H03F3/24 , H03F2200/102 , H04B2001/045

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