专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明申请

US20110163814A1 Hybrid Class Amplifier 有权
标题翻译：混合放大器
公开(公告)号：US20110163814A1
公开(公告)日：2011-07-07
申请号：US13061453
申请日：2008-09-01
申请人： Richard Hellberg
发明人： Richard Hellberg
IPC分类号： H03F3/04
CPC分类号： H03F3/16 , H03F1/0205 , H03F1/56 , H03F3/19 , H03F3/217
摘要： A power amplifier (10) configured to generate impedances at harmonic frequencies such that the power amplifier (10) operates in a class C mode in a low output amplitude range and in a class F or inverse F mode in a high output amplitude range.
摘要翻译：功率放大器（10），被配置为在谐波频率处产生阻抗，使得功率放大器（10）在低输出幅度范围内以及在高输出幅度范围内的F类或F模式中以C类模式工作。

32. 发明授权

US07557652B2 Power amplifier system 有权
标题翻译：功率放大器系统
公开(公告)号：US07557652B2
公开(公告)日：2009-07-07
申请号：US11722191
申请日：2004-12-21
申请人： Mats Klingberg , Richard Hellberg
发明人： Mats Klingberg , Richard Hellberg
IPC分类号： H03F3/68
CPC分类号： H03F1/0288 , H03F3/24 , H03F3/602 , H03F2200/423
摘要： A multiple input multiple output power amplifier system includes multiple main amplifiers for amplifying corresponding independent input signals. A common control unit forms a composite signal from the independent input signals. The composite signal is amplified by a peaking amplifier and forwarded to an output network where main amplifier output signals are combined with amplified composite signals into multiple power amplifier output signals.
摘要翻译：多输入多输出功率放大器系统包括用于放大对应的独立输入信号的多个主放大器。公共控制单元从独立输入信号形成复合信号。复合信号由峰值放大器放大，并转发到输出网络，其中主放大器输出信号与放大的复合信号组合成多个功率放大器输出信号。

33. 发明申请

US20080025375A1 Bandwidth-Constrained Signal Conditioning 有权
标题翻译：带宽约束信号调理
公开(公告)号：US20080025375A1
公开(公告)日：2008-01-31
申请号：US11721620
申请日：2004-12-21
申请人： Richard Hellberg
发明人： Richard Hellberg
IPC分类号： H04B1/00
CPC分类号： H03H17/0261 , H03F1/0205 , H03F1/0288 , H03F1/3241 , H03F3/24 , H03F2200/15 , H03F2200/18 , H03F2200/435 , H03H17/06 , H03H2218/12
摘要： Non-linear signal conditioning is provided by signal processing in at least 2 consecutive steps (10). In each step (10) an insertion source signal (41) is provided, which is treated non-linearly to fulfil certain restrictions in bandwidth and/or spectral mask. The insertion signal is combined with a main signal (21) using a reinsertion factor (k1-kn), as a correction of the main signal (21). The reinsertion factor of at least one step is larger than the reinsertion factor of a previous step. In particular embodiments, the reinsertion factor increases for each of the at least 2 steps. This principle can be applied to most non-linear signal processing, and for example in PAR reduction systems, dynamic drain bias PA systems, Doherty and Chireix PA systems and in Dynamic Gate Bias systems.
摘要翻译：非线性信号调理在至少2个连续步骤（10）中由信号处理提供。在每个步骤（10）中，提供插入源信号（41），其被非线性处理以在带宽和/或频谱掩模中实现某些限制。作为主信号（21）的校正，插入信号与使用重新插入因子（k1-1-N）的主信号（21）组合。至少一个步骤的重新插入因子大于前一步骤的重新插入系数。在特定实施例中，对于至少2个步骤中的每个步骤，重新插入因子增加。该原理可以应用于大多数非线性信号处理，例如PAR减小系统，动态漏极偏置PA系统，Doherty和Chireix PA系统以及动态门偏置系统中。

34. 发明申请

US20070080747A1 Composite power amplifier 有权
标题翻译：复合功率放大器
公开(公告)号：US20070080747A1
公开(公告)日：2007-04-12
申请号：US10595169
申请日：2004-09-21
申请人： Mats Klingberg , Richard Hellberg
发明人： Mats Klingberg , Richard Hellberg
IPC分类号： H03F3/68
CPC分类号： H03F1/0294 , H03F1/0288 , H03F3/24 , H03F3/602 , H03F2200/423 , H03F2200/451
摘要： A PAMELA-type of composite power amplifier is configured in such a way that a single power amplifier is operated at low output voltage amplitudes by prohibiting a pair of outphasing power amplifiers to produce any current. Preferably, at output voltage amplitudes above the maximum voltage of the single power amplifier is to be reached, the pair of outphasing power amplifiers is taken into operation providing currents phase shifted by substantially 180 degrees. When also the outphasing power amplifiers reach their maximum voltages, an outphasing operation is performed.
摘要翻译： PAMELA型复合功率放大器被配置为使得单个功率放大器通过禁止一对外相功率放大器产生任何电流以低输出电压幅度工作。优选地，在要达到单功率放大器的最大电压的输出电压幅度的情况下，该对外相功率放大器被投入运行，从而提供相移大致180度的电流。当外相功率放大器也达到其最大电压时，执行外相操作。

35. 发明授权

US07058136B1 Method and apparatus for generating an RF signal 失效
标题翻译：用于产生RF信号的方法和装置
公开(公告)号：US07058136B1
公开(公告)日：2006-06-06
申请号：US09714871
申请日：2000-11-17
申请人： Richard Hellberg , Tony Fondén , Spendim Dalipi
发明人： Richard Hellberg , Tony Fondén , Spendim Dalipi
IPC分类号： H04L27/04
CPC分类号： H03F3/2178 , H03F3/24 , H03F2200/331 , H04B2001/0408 , H04B2001/0491
摘要： To generate a high-power modulated radio frequency signal SOUT from an input low or medium frequency information signal SIN, the information signal is pulse-shaped in a quantifier to form a digital signal SD having discrete signal values. The digital signal is processed in a switching unit comprising switches for each signal value, in radio frequency wave generators for each switch generating carrier waves of radio frequency, and in control circuits for each switch to control the opening and closing thereof. When a switch is closed, its associated generator is connected to the output line of the switching unit, and when it is opened, the generator is disconnected therefrom. In the switching unit, a switched radio frequency signal SSW carrying the information of the input signal is formed by opening and closing the switches when the digital signal adopts or does not adopt, respectively, the signal value associated with the respective switch. The switching is thus controlled by the signal values of the digital signal. The switched signal on the output line of the switching unit is filtered by a filter for achieving the high-power, modulated, radio frequency signal SOUT.
摘要翻译：为了从输入的低或中频信息信号S IN IN IN产生高功率调制射频信号S OUT OUT，信息信号在量化器中被脉冲形成具有离散信号值的数字信号S D。数字信号在包括用于每个信号值的开关的开关单元中处理，在用于产生无线电频率的载波的每个开关的射频发生器中以及用于控制其开启和关闭的每个开关的控制电路中。当开关闭合时，其相关联的发电机连接到开关单元的输出线，当其断开时，发电机与其断开连接。在切换单元中，当数字信号分别采用或不采用相关联的信号值时，通过打开和关闭开关来形成携带输入信号的信息的切换射频信号S SW SW 与相应的开关。因此，开关由数字信号的信号值控制。开关单元的输出线上的开关信号由用于实现高功率调制的射频信号S OUT的滤波器滤波。

36. 发明申请

US20060114060A1 Composite amplifier structure 有权
标题翻译：复合放大器结构
公开(公告)号：US20060114060A1
公开(公告)日：2006-06-01
申请号：US10537986
申请日：2002-12-19
申请人： Richard Hellberg , Mats Klingberg
发明人： Richard Hellberg , Mats Klingberg
IPC分类号： H03F3/68
CPC分类号： H03F1/32 , H03F1/0205 , H03F1/0288 , H03F1/0294 , H03F3/24 , H03F3/60 , H03F3/602 , H03F3/604 , H03F2200/423 , H03F2200/543
摘要： A composite power amplifier structure includes a first power amplifier (PAN+1) configured as an auxiliary amplifier of a Doherty amplifier and connected to an output node and an even number of further power amplifiers configured into at least one Chireix pair (PA 1, 1+PA 1,2 . . . PA N, 1 +PA N,2) connected to the same output node. The Chireix pairs are driven (40) at least partially in outphasing modes and the first power amplifier is driven (40) in the same manner as the auxiliary amplifier of a Doherty amplifier.
摘要翻译：复合功率放大器结构包括配置为Doherty放大器的辅助放大器并连接到输出节点的第一功率放大器（PAN + 1）和配置成至少一个Chireix对（PA 1，1）的偶数个功率放大器 + PA 1,2 ... PA N，1 + PA N，2）连接到同一个输出节点。 Chireix对至少部分地以非相模式驱动（40），并且以与Doherty放大器的辅助放大器相同的方式驱动第一功率放大器（40）。

37. 发明授权

US06940349B2 Transmitter including a composite amplifier 有权
标题翻译：发射机包括复合放大器
公开(公告)号：US06940349B2
公开(公告)日：2005-09-06
申请号：US10335154
申请日：2003-01-02
申请人： Richard Hellberg
发明人： Richard Hellberg
IPC分类号： H03F3/68 , H03F1/02 , H03F1/07 , H03F1/32 , H03F3/24 , H04B1/04
CPC分类号： H03F3/24 , H03F1/0288 , H03F2200/423
摘要： A composite amplifier includes a main power amplifier (10) and an auxiliary power amplifier (12), which are connected to a load (14) over a Doherty output network (16). A non-linear function (18) and a cross-coupling filter (22) emulate the non-linear behavior of the output current of the auxiliary power amplifier (12) and the resulting emulating signal is subtracted from the input signal to said main amplifier (10).
摘要翻译：复合放大器包括主功率放大器（10）和辅助功率放大器（12），其连接到Doherty输出网络（16）上的负载（14）。非线性函数（18）和交叉耦合滤波器（22）模拟辅助功率放大器（12）的输出电流的非线性行为，并将所得到的仿真信号从输入信号中减去到所述主放大器（10）。

38. 发明授权

US06897721B2 Composite amplifier with optimized linearity and efficiency 有权
标题翻译：具有优化线性度和效率的复合放大器
公开(公告)号：US06897721B2
公开(公告)日：2005-05-24
申请号：US10476002
申请日：2002-03-27
申请人： Richard Hellberg
发明人： Richard Hellberg
IPC分类号： H03F1/02 , H03F1/07 , H03F1/32 , H03F3/24 , H04B1/04 , H03F1/30
CPC分类号： H03F3/24 , H03F1/0288 , H03F1/32 , H03F2200/451 , H04B1/0483
摘要： The invention relates to a composite amplifier (500) based on a main amplifier (510) and an auxiliary amplifier (520), and compensation for non-linear amplifier behavior by means of respective non-linear models (570, 575) of parasitic. In order to provide proper excitation of the non-linear models, a filter network (560) based on a linear model of the output network of the composite amplifier is provided. The linear filter network (550) basically determines ideal output node voltages, which are used as input to the respective non-linear models for generating appropriate compensation signals. The compensation signals are finally merged into the input signals of the respective sub-amplifiers (510, 520), thus effectively compensating for the effects of the non-linear parasitics.
摘要翻译：本发明涉及一种基于主放大器（510）和辅助放大器（520）的复合放大器（500），并且通过寄生的相应非线性模型（570,575）来补偿非线性放大器行为。为了提供非线性模型的适当激励，提供了基于复合放大器的输出网络的线性模型的滤波器网络（560）。线性滤波器网络（550）基本上确定理想的输出节点电压，其被用作用于产生适当补偿信号的相应非线性模型的输入。补偿信号最终合并到各个子放大器（510,520）的输入信号中，从而有效补偿非线性寄生效应。

39. 发明授权

US06639464B2 Composite amplifier 有权
公开(公告)号：US06639464B2
公开(公告)日：2003-10-28
申请号：US10310064
申请日：2002-12-05
申请人： Richard Hellberg
发明人： Richard Hellberg
IPC分类号： H03F368
CPC分类号： H03F3/24 , H03F1/0288 , H03F2200/102 , H03F2200/451
摘要： A composite amplifier includes a main power amplifier (10) and an auxiliary power amplifier (12), which are connected to a load (26) over a Doherty output network. An attenuator (34) is provided for activating the auxiliary power amplifier (12) before the main amplifier (10) is saturated. Preferably the input drive voltage to the auxiliary power amplifier (12) is increased along a smooth curve as the input signal amplitude to the composite amplifier increases.

40. 发明授权

US06496125B2 A/D conversion 有权
标题翻译： A / D转换
公开(公告)号：US06496125B2
公开(公告)日：2002-12-17
申请号：US09808218
申请日：2001-03-14
申请人： Bengt Erik Jonsson , Richard Hellberg
发明人： Bengt Erik Jonsson , Richard Hellberg
IPC分类号： H03M106
CPC分类号： H03M1/1004 , H03M1/12
摘要： An A/D converter system includes a first A/D converter with calibration circuitry. Also included in the system is an auxiliary A/D converter having a lower performance level than the first A/D converter. Circuitry is provided for temporarily switching an A/D conversion from the first A/D converter to the auxiliary A/D converter during short time intervals used for calibration of the first A/D converter. The rate at which the A/D conversion is switched is lower than the sampling rate of the first A/D converter.
摘要翻译： A / D转换器系统包括具有校准电路的第一A / D转换器。该系统还包括具有比第一A / D转换器更低的性能水平的辅助A / D转换器。提供电路，用于在用于校准第一A / D转换器的短时间间隔期间将A / D转换从第一A / D转换器临时切换到辅助A / D转换器。 A / D转换的切换速率低于第一A / D转换器的采样率。

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