专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP3046252A4 POWER AMPLIFYING APPARATUS AND METHOD FOR CONTROLLING POWER AMPLIFYING APPARATUS 有权
标题翻译： LEISTUNGSVERSTÄRKUNGSVORRICHTUNGUND VERFAHREN ZUR STEUERUNG DERLEISTUNGSVERSTÄRKUNGSVORRICHTUNG
公开(公告)号：EP3046252A4
公开(公告)日：2017-05-17
申请号：EP13893120
申请日：2013-09-09
申请人： NEC CORP
发明人： OTAKE SUMITAKA
IPC分类号： H03F1/07 , H03F1/56 , H03F3/189 , H03F3/72
CPC分类号： H03F1/0288 , H03F1/52 , H03F1/56 , H03F3/189 , H03F3/19 , H03F3/211 , H03F3/72 , H03F2200/192 , H03F2200/231 , H03F2200/387 , H03F2200/451 , H03F2200/78 , H03F2203/21139 , H03F2203/7215 , H03F2203/7227
摘要： A power amplification device (1) according to an exemplary embodiment of the invention includes a Doherty amplifier (10) that is adjusted to operate at a set frequency, a frequency comparator (11) that compares a supplied frequency being a frequency of an input signal RF_IN to the Doherty amplifier (10) with the set frequency, and a protection circuit (12) that sets an operating state of the Doherty amplifier (10) to inactive when the supplied frequency and the set frequency are different. It is thereby possible to protect the Doherty amplifier (10) when the input signal RF_IN with a frequency different from the set frequency is supplied.
摘要翻译：根据本发明示例性实施例的功率放大装置（1）包括被调整为以设定频率操作的多赫蒂放大器（10），频率比较器（11），其比较所提供的频率是输入信号的频率 RF_IN以设定的频率输出到Doherty放大器（10）;以及保护电路（12），当所提供的频率和设定频率不同时，将Doherty放大器（10）的操作状态设置为无效。由此可以在提供具有与设定频率不同的频率的输入信号RF_IN时保护Doherty放大器（10）。

3. 发明公开

EP2840709A1 Amplifier and method of amplification 审中-公开
标题翻译： VerstärkerundVerstärkungsverfahren
公开(公告)号：EP2840709A1
公开(公告)日：2015-02-25
申请号：EP13181370.1
申请日：2013-08-22
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Brandt, Per-Olof
IPC分类号： H03F1/02 , H03F3/195 , H03F3/21 , H03F3/24 , H03F3/72
CPC分类号： H03F3/245 , H03F1/0222 , H03F1/0277 , H03F3/195 , H03F3/211 , H03F3/72 , H03F2200/108 , H03F2200/15 , H03F2200/504 , H03F2203/21106 , H03F2203/21142 , H03F2203/7227 , H03F2203/7236
摘要： An amplifier (200) comprises an envelope generation stage (10) arranged to generate a first envelope signal indicative of an envelope of an input signal over a first range of values of the envelope of the input signal, and a second envelope signal indicative of the envelope of the input signal over a second range, higher than the first range, of values of the envelope of the input signal. The first envelope signal is substantially independent of the envelope of the input signal over the second range, and the second envelope signal is substantially independent of the envelope of the input signal over the first range. A first amplification stage (50) is arranged to amplify the input signal and has a first supply of power dependent on the first envelope signal. A second amplification stage (60) is arranged to amplify the input signal and has a second supply of power dependent on the second envelope signal. A summing stage (80) is arranged to sum the input signal amplified by the first and second amplification stages (50, 60).
摘要翻译：放大器（200）包括：信封生成级（10），被配置为产生指示在输入信号的包络的第一值范围上的输入信号的包络的第一包络信号，以及指示在输入信号的包络的值的第二范围的第二范围内的输入信号的包络。第一包络信号基本上与第二范围上的输入信号的包络无关，并且第二包络信号基本上与第一范围上的输入信号的包络无关。第一放大级（50）被布置成放大输入信号并且具有取决于第一包络信号的第一电源。布置第二放大级（60）以放大输入信号，并且具有取决于第二包络信号的第二电源。求和级（80）被布置成对由第一和第二放大级（50,60）放大的输入信号进行求和。

4. 发明授权

EP1581995B1 CONTROLLABLE RF BROADBAND AMPLIFIER WITH A CONSTANT INPUT IMPEDANCE 有权
标题翻译：与恒阻抗可调RF放大器宽带
公开(公告)号：EP1581995B1
公开(公告)日：2012-02-08
申请号：EP03815054.6
申请日：2003-12-05
申请人： Thomson Licensing
发明人： SCHEMMANN, Heinrich , IPEK, Mehmet , ROTH, Sabine
IPC分类号： H03F3/72 , H03G1/00
CPC分类号： H03F3/72 , H03F2203/7203 , H03F2203/7206 , H03F2203/7227 , H03G1/0088
摘要： A variable-gain RF amplifier arrangement whose input impedance is essentially independent of the selected gain is proposed, which has a large number of selectable elementary amplifiers, with an input signal being scaled and the input impedance being set to be the same by means of switchable current limiting elements upstream of the elementary amplifiers, which are associated with the elementary amplifiers. The circuit also has a low noise level, which is largely independent of the selected gain, and good linearity. A broadcast radio receiver as well as a receiver for receiving data signals using an amplifier according to the invention are also proposed.

5. 发明公开

EP2383885A1 TRANSIMPEDANCE AMPLIFIER 审中-公开
标题翻译： TRANSIMPEDANZVERSTÄRKER
公开(公告)号：EP2383885A1
公开(公告)日：2011-11-02
申请号：EP09838823.4
申请日：2009-05-08
申请人： Sumitomo Electric Industries, Ltd.
发明人： YEUNG Pak-Ho , UMEDA Daisuke
IPC分类号： H03F1/22 , H03F3/08
CPC分类号： H03F1/083 , H03F1/0277 , H03F1/22 , H03F1/32 , H03F3/08 , H03F3/211 , H03F3/72 , H03F2200/411 , H03F2203/21106 , H03F2203/21142 , H03F2203/7203 , H03F2203/7227 , H03F2203/7236
摘要： Systems and apparatus for converting an input current signal into two or more output voltage signals on an integrated circuit. In one aspect, an integrated circuit includes a first trans-impedance amplifier that includes a first cascode amplifier; and a second trans-impedance amplifier that includes a second cascode amplifier, the second cascode amplifier and the first cascode amplifier sharing an input transistive element; where the first cascode amplifier is coupled to one or more first switches that disable the first trans-impedance amplifier, the second cascode amplifier is coupled to one or more second switches that disable the second trans-impedance amplifier, and control logic coupled to the one or more first switches and the one or more second switches disables at least one of the first trans-impedance amplifier or the second trans-impedance amplifier.
摘要翻译：用于将输入电流信号转换为集成电路上的两个或更多个输出电压信号的系统和装置。一方面，集成电路包括第一跨阻抗放大器，其包括第一共源共栅放大器; 以及第二跨阻抗放大器，其包括第二共源共栅放大器，所述第二共源共栅放大器和所述第一共源共栅放大器共享输入转移元件; 其中第一共源共栅放大器耦合到禁用第一跨阻抗放大器的一个或多个第一开关，第二共源共栅放大器耦合到禁用第二跨阻放大器的一个或多个第二开关，以及耦合到第一跨阻放大器的控制逻辑或更多的第一开关，并且所述一个或多个第二开关禁用第一跨阻抗放大器或第二跨阻放大器中的至少一个。

6. 发明公开

EP1892827A1 Single-band multi-standard power amplifier 审中-公开
标题翻译： Einzelband-多标准 - Leistungsverstärker
公开(公告)号：EP1892827A1
公开(公告)日：2008-02-27
申请号：EP06300889.0
申请日：2006-08-24
申请人： Alcatel Lucent
发明人： Wiegner, Dirk , Nass, Tobias
IPC分类号： H03F1/02
CPC分类号： H03F3/602 , H03F1/0211 , H03F1/0261 , H03F1/0277 , H03F3/24 , H03F3/72 , H03F2200/15 , H03F2200/18 , H03F2200/408 , H03F2200/421 , H03F2200/423 , H03F2200/451 , H03F2203/7206 , H03F2203/7227 , H03F2203/7239
摘要： The present invention relates to a single-band multi-standard power amplifier module (10) for amplifying a radio frequency signal within a predetermined frequency band, comprising a driver amplifier (12) and a final amplifier (14), a first biasing unit (22) for biasing the driver amplifier (12), a second biasing unit (24) for biasing the final amplifier (14) and a switching unit (30) for selectively by-passing the final amplifier (14). The invention further relates to a transmitter comprising said single-band multi-standard power amplifier, a base or mobile station comprising said transmitter and a method for operating said single-band multi-standard power amplifier module.
摘要翻译：本发明涉及用于放大预定频带内的射频信号的单频带多标准功率放大器模块（10），包括驱动放大器（12）和最终放大器（14），第一偏置单元 22），用于偏置驱动放大器（12），用于偏置最终放大器（14）的第二偏置单元（24）和用于选择性地旁路最终放大器（14）的开关单元（30）。本发明还涉及包括所述单频带多标准功率放大器，包括所述发射机的基站或移动站以及用于操作所述单频带多标准功率放大器模块的方法的发射机。

7. 发明公开

EP1804374A2 Switching amplifier 审中-公开
标题翻译：开关放大器
公开(公告)号：EP1804374A2
公开(公告)日：2007-07-04
申请号：EP06015603.1
申请日：2006-07-26
申请人： SHARP KABUSHIKI KAISHA
发明人： Kishida, Masahiro
IPC分类号： H03F3/217 , H03F3/21 , H03F3/72
CPC分类号： H03F3/2175 , H03F3/211 , H03F3/72 , H03F2200/03 , H03F2200/331 , H03F2200/345 , H03F2200/351 , H03F2200/372 , H03F2200/459 , H03F2200/507 , H03F2203/7227 , H03F2203/7236 , H03G1/0088 , H03G3/001
摘要： A switching amplifier of the invention boasts of an enhanced SN ratio in its output and an increased amplitude limit value in its input signal. The switching amplifier has a quantized signal generating section (3) that converts an input signal to generate a quantized signal in the form of a PDM or PWM signal and a constant-current-outputting current amplification section (11) that current-amplifies the quantized signal outputted from the quantized signal generating section (3). The quantized signal generating section and the current amplification section are formed by the same process.
摘要翻译：本发明的开关放大器在其输出中具有增强的SN比并且在其输入信号中具有增加的幅度限制值。开关放大器具有：量化信号生成部（3），其对输入信号进行变换而生成PDM或PWM信号形式的量化信号;以及恒流输出电流放大部（11），其对量子化后的信号进行电流放大信号从量化信号生成部分（3）输出。量化信号生成部分和电流放大部分通过相同的处理形成。

8. 发明公开

EP1628392A4 AMPLIFICATION DEVICE 审中-公开
标题翻译： VERSTÄRKUNGSEINRICHTUNG
公开(公告)号：EP1628392A4
公开(公告)日：2007-07-04
申请号：EP04733697
申请日：2004-05-18
申请人： HITACHI INT ELECTRIC INC
发明人： HARAMOTO RYOKI , DOSAKA JUNYA
IPC分类号： H03F1/32 , H03F3/72
CPC分类号： H03F1/3235 , H03F1/3229 , H03F3/72 , H03F2200/195 , H03F2200/207 , H03F2200/507 , H03F2203/7227
摘要： An amplification device includes: a distortion detection loop for amplifying a signal to be amplified by an amplifier (3) and detecting a distortion component contained in the amplified signal; and a distortion removal loop for removing the distortion component from the amplified signal by using the distortion component detected by the distortion detection loop. The amplification device combines the signal to be amplified with a reference signal (pilot signal) and performs control on distortion compensation by using the reference signal. The configuration for performing control on distortion compensation by using the reference signal is realized effectively. Amplification object signal detection means (11-13, 21) detect a signal to be amplified. When the amplification object signal detection means detect that no signal to be amplified is input, reference signal control means (21, 15) perform control in such a manner that no reference signal is output.
摘要翻译：一种放大装置，包括：失真检测回路，用于放大由放大器（3）放大的信号并检测包含在放大信号中的失真分量; 以及失真消除环路，用于通过使用失真检测环路检测到的失真分量从放大信号中消除失真分量。放大装置将要放大的信号与参考信号（导频信号）组合，并通过使用参考信号来执行失真补偿的控制。用于通过使用参考信号来执行失真补偿控制的配置被有效地实现。放大对象信号检测装置（11-13,21）检测要放大的信号。当放大对象信号检测装置检测到没有要被放大的信号被输入时，参考信号控制装置（21,15）以不输出参考信号的方式进行控制。

9. 发明公开

EP1714380A2 LOW POWER CONSUMPTION ADAPTIVE POWER AMPLIFIER RELATED APPLICATION 无效
标题翻译：自适应功率放大器低电流相关应用
公开(公告)号：EP1714380A2
公开(公告)日：2006-10-25
申请号：EP04779492.0
申请日：2004-07-29
申请人： MOTOROLA INC., A Corporation of the state of Delaware
发明人： CONRAD, Clark, W. , KLOMSDORF, Armin , SCHIRMANN, Ernest
IPC分类号： H03F1/00
CPC分类号： H03F3/211 , H03F1/02 , H03F1/0211 , H03F1/0261 , H03F1/0277 , H03F1/56 , H03F3/72 , H03F2200/303 , H03F2200/391 , H03F2200/417 , H03F2203/7227
摘要： A power amplification circuit (10) includes a scalable power amplifier (20) to produce an RF output signal (50) at an output of the power amplification circuit (10), and a variable impedance circuit (30) coupled to the output of the power amplification circuit (10). The scalable power amplifier (20) includes a plurality of selectively activated amplifier elements (22), (24), (26) to produce the RF output signal (50) in accordance with a desired RF output signal power level. The power amplification circuit (10) selectively activates individual amplifier elements by, for example reducing power or increasing power to at least one amplifier element. The variable impedance circuit (30) varies an impedance of the variable impedance circuit (30) to dynamically load the output of the scalable power amplifier(20).

10. 发明公开

EP1628392A1 AMPLIFICATION DEVICE 审中-公开
标题翻译： VERSTÄRKUNGSEINRICHTUNG
公开(公告)号：EP1628392A1
公开(公告)日：2006-02-22
申请号：EP04733697.9
申请日：2004-05-18
申请人： Hitachi Kokusai Electric Inc.
发明人： HARAMOTO, Ryoki, HITACHI KOKUSAI ELECTRIC INC. , DOSAKA, Junya; HITACHI KOKUSAI ELECTRIC INC.
IPC分类号： H03F1/32
CPC分类号： H03F1/3235 , H03F1/3229 , H03F3/72 , H03F2200/195 , H03F2200/207 , H03F2200/507 , H03F2203/7227
摘要： An amplification apparatus that has a distortion detection loop that detects distortion components contained in an amplified signal to be amplified that is amplified by an amplifier 3, and a distortion removal loop that removes distortion components from the amplified signal, using the distortion components detected by the distortion detection loop, combines a reference signal (pilot signal) with the signal to be amplified, and performs control relating to distortion compensation, using said reference signal, to provide improved efficiency with respect to a configuration to perform control relating to distortion compensation, using a reference signal. A signal to be amplified is detected by amplification signal detection means 11 ~ 13 and 21, and when it is detected by the amplification signal detection means that there is no input of a signal to be amplified, reference signal control means 21, 15 perform control to effect non-output of the reference signals.
摘要翻译：具有失真检测环路的放大装置，该失真检测环路检测由放大器3放大的放大放大信号中包含的失真成分，以及使用由放大器3检测出的失真成分除去放大信号的失真成分的失真消除环路失真检测环路将参考信号（导频信号）与要放大的信号组合，并使用所述参考信号执行与失真补偿相关的控制，以提供关于执行与失真补偿相关的控制的配置的改进的效率，使用参考信号。放大信号检测装置11〜13和21检测放大信号，当放大信号检测装置检测出没有要放大的信号的输入时，基准信号控制装置21,15进行控制以实现参考信号的非输出。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式