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. 发明授权

US08749309B2 Gate-based output power level control power amplifier 有权
标题翻译：基于门控输出功率电平控制功率放大器
公开(公告)号：US08749309B2
公开(公告)日：2014-06-10
申请号：US13310544
申请日：2011-12-02
申请人： Daniel Ho , Stephen Franck , Ying Shi , Baker Scott
发明人： Daniel Ho , Stephen Franck , Ying Shi , Baker Scott
IPC分类号： H03G3/10
CPC分类号： H03G3/3042 , H03F1/0233 , H03F1/0261 , H03F1/223 , H03F3/245 , H03F2200/18 , H03F2200/405 , H03F2200/465 , H03G1/007
摘要： A gate power control technique for a power amplifier (PA) provides practical improved efficiency at backed-off power levels. It can be applied to the main gate of the output stage of the PA, the cascode gate, or any combination thereof. Both voltage mode and current mode signal processing may be used. The gate power control can be implemented in both open-loop and closed-loop using AC and DC coupled drivers and output stages. It may further use one or more control ports in the radio frequency (RF) signal path.
摘要翻译：用于功率放大器（PA）的栅极功率控制技术在退避功率电平方面提供实际的提高的效率。它可以应用于PA的输出级的主栅极，共源共栅栅极或其任何组合。可以使用电压模式和电流模式信号处理两者。门功率控制可以使用交流和直流耦合驱动器和输出级在开环和闭环中实现。它可以进一步使用射频（RF）信号路径中的一个或多个控制端口。

2. 发明申请

US20120139635A1 Gate-Based Output Power Level Control Power Amplifier 有权
标题翻译：基于门控的输出功率电平控制功率放大器
公开(公告)号：US20120139635A1
公开(公告)日：2012-06-07
申请号：US13310544
申请日：2011-12-02
申请人： Daniel Ho , Stephen Franck , Ying Shi , Baker Scott
发明人： Daniel Ho , Stephen Franck , Ying Shi , Baker Scott
IPC分类号： H03G3/00
CPC分类号： H03G3/3042 , H03F1/0233 , H03F1/0261 , H03F1/223 , H03F3/245 , H03F2200/18 , H03F2200/405 , H03F2200/465 , H03G1/007
摘要： A gate power control technique for a power amplifier (PA) provides practical improved efficiency at backed-off power levels. It can be applied to the main gate of the output stage of the PA, the cascode gate, or any combination thereof. Both voltage mode and current mode signal processing may be used. The gate power control can be implemented in both open-loop and closed-loop using AC and DC coupled drivers and output stages. It may further use one or more control ports in the radio frequency (RF) signal path.
摘要翻译：用于功率放大器（PA）的栅极功率控制技术在退避功率电平方面提供实际的提高的效率。它可以应用于PA的输出级的主栅极，共源共栅栅极或其任何组合。可以使用电压模式和电流模式信号处理两者。门功率控制可以使用交流和直流耦合驱动器和输出级在开环和闭环中实现。它可以进一步使用射频（RF）信号路径中的一个或多个控制端口。

3. 发明申请

US20120139639A1 Ground Partitioned Power Amplifier for Stable Operation 有权
标题翻译：用于稳定运行的地面分区功率放大器
公开(公告)号：US20120139639A1
公开(公告)日：2012-06-07
申请号：US13310611
申请日：2011-12-02
申请人： Baker Scott , George Maxim , Stephen Franck , Chu Hsiung Ho
发明人： Baker Scott , George Maxim , Stephen Franck , Chu Hsiung Ho
IPC分类号： H03F1/34
CPC分类号： H03F1/30 , H03F1/34 , H03F3/193 , H03F2200/186 , H03F2200/189
摘要： Achievement of robust stability of a power amplifier (PA) that allows the sharing of the ground between the driver stages and the output stage is shown. A controlled amount of negative feedback is used to neutralize the local positive feedback that results from the driver-to-output stage ground sharing in the signal path, for example, a radio frequency (RF) signal path. The solution keeps a strong drive and a good performance of the PA. Exemplary embodiments are shown for the PA positive feedback neutralization. A first embodiment uses a ground signal divider while another embodiment uses a ground signal divider weighting technique.
摘要翻译：显示了允许在驱动级和输出级之间共享地面的功率放大器（PA）的鲁棒稳定性的实现。使用受控量的负反馈来中和由信号路径（例如射频（RF））信号路径中的驱动器到输出级地面共享产生的局部正反馈。该解决方案保持了强大的驱动力和良好的性能。示出了用于PA正反馈中和的示例性实施例。第一实施例使用接地信号分频器，而另一实施例使用接地信号分频器加权技术。

4. 发明授权

US08629725B2 Power amplifier having a nonlinear output capacitance equalization 有权
标题翻译：功率放大器具有非线性输出电容均衡
公开(公告)号：US08629725B2
公开(公告)日：2014-01-14
申请号：US13310568
申请日：2011-12-02
申请人： Baker Scott , George Maxim , Chu Hsiung Ho , Stephen Franck , Tom Biedka
发明人： Baker Scott , George Maxim , Chu Hsiung Ho , Stephen Franck , Tom Biedka
IPC分类号： H03F3/191
CPC分类号： H03F1/3205 , H03F1/223 , H03F1/56 , H03F3/193 , H03F2200/108 , H03F2200/378 , H03F2200/387
摘要： Power amplifier (PA), regardless of the process used for the manufacturing of its devices, suffers from a nonlinear output capacitance that has significant impact on various aspects of the PA performance. This output capacitance is dependent on the large output voltage swing. Accordingly a compensation capacitance is added at the output of the PA that has a behavior that is inverse respective of the output voltage of that of the output capacitance of the PA. Connecting the compensation capacitor in parallel to the PA output capacitance, results in a total capacitance that is the sum of the output capacitance and its compensation capacitance. The total output capacitance is therefore essentially stable throughout the output voltage swing.
摘要翻译：功率放大器（PA）无论其用于制造其器件的工艺如何，均受到非线性输出电容的影响，对PA性能的各个方面都有显着的影响。该输出电容取决于大输出电压摆幅。因此，在PA的输出处增加补偿电容，其具有与PA的输出电容的输出电压的输出电压相反的行为。将补偿电容并联到PA输出电容，导致总电容为输出电容与其补偿电容之和。因此，总输出电容在整个输出电压摆幅时基本稳定。

5. 发明授权

US08624678B2 Output stage of a power amplifier having a switched-bulk biasing and adaptive biasing 有权
标题翻译：具有开关体积偏置和自适应偏置的功率放大器的输出级
公开(公告)号：US08624678B2
公开(公告)日：2014-01-07
申请号：US13310623
申请日：2011-12-02
申请人： Baker Scott , George Maxim , Stephen Franck
发明人： Baker Scott , George Maxim , Stephen Franck
IPC分类号： H03F1/22
CPC分类号： H03F3/245 , H03F1/0272 , H03F1/223 , H03F1/301 , H03F1/523 , H03F3/19 , H03F3/211 , H03F2200/108 , H03F2200/18 , H03F2200/405 , H03F2200/426 , H03F2200/447 , H03F2200/541 , H03F2203/45394
摘要： A power amplifier (PA) using switched-bulk biasing to minimize the risk of output stage snapback effect is disclosed. An adaptive biasing of the output stage prevents device breakdown while accommodating large voltage swings. These protection techniques can be applied to all types of cascode configurations of a PA, including single-ended, differential, quadrature, segmented and any combination thereto.
摘要翻译：公开了一种使用切换批量偏置以最小化输出级快速恢复效应的风险的功率放大器（PA）。输出级的自适应偏置可防止器件击穿同时容纳大的电压摆幅。这些保护技术可以应用于PA的所有类型的共源共栅配置，包括单端，差分，正交，分段和任何组合。

6. 发明申请

US20120146722A1 Power Amplifier Having a Nonlinear Output Capacitance Equalization 有权
标题翻译：具有非线性输出电容均衡功率放大器
公开(公告)号：US20120146722A1
公开(公告)日：2012-06-14
申请号：US13310568
申请日：2011-12-02
申请人： Baker Scott , George Maxim , Chu Hsiung Ho , Stephen Franck , Tom Biedka
发明人： Baker Scott , George Maxim , Chu Hsiung Ho , Stephen Franck , Tom Biedka
IPC分类号： H03F1/00
CPC分类号： H03F1/3205 , H03F1/223 , H03F1/56 , H03F3/193 , H03F2200/108 , H03F2200/378 , H03F2200/387
摘要： Power amplifier (PA), regardless of the process used for the manufacturing of its devices, suffers from a nonlinear output capacitance that has significant impact on various aspects of the PA performance. This output capacitance is dependent on the large output voltage swing. Accordingly a compensation capacitance is added at the output of the PA that has a behavior that is inverse respective of the output voltage of that of the output capacitance of the PA. Connecting the compensation capacitor in parallel to the PA output capacitance, results in a total capacitance that is the sum of the output capacitance and its compensation capacitance. The total output capacitance is therefore essentially stable throughout the output voltage swing.
摘要翻译：功率放大器（PA）无论其用于制造其器件的工艺如何，均受到非线性输出电容的影响，对PA性能的各个方面都有显着的影响。该输出电容取决于大输出电压摆幅。因此，在PA的输出处增加补偿电容，其具有与PA的输出电容的输出电压的输出电压相反的行为。将补偿电容并联到PA输出电容，导致总电容为输出电容与其补偿电容之和。因此，总输出电容在整个输出电压摆幅时基本稳定。

7. 发明申请

US20120139643A1 Output Stage of a Power Amplifier Having a Switched-Bulk Biasing and Adaptive Biasing 有权
标题翻译：具有开关量大偏置和自适应偏置的功率放大器的输出级
公开(公告)号：US20120139643A1
公开(公告)日：2012-06-07
申请号：US13310623
申请日：2011-12-02
申请人： Baker Scott , George Maxim , Stephen Franck
发明人： Baker Scott , George Maxim , Stephen Franck
IPC分类号： H03F3/16 , H03F1/22
CPC分类号： H03F3/245 , H03F1/0272 , H03F1/223 , H03F1/301 , H03F1/523 , H03F3/19 , H03F3/211 , H03F2200/108 , H03F2200/18 , H03F2200/405 , H03F2200/426 , H03F2200/447 , H03F2200/541 , H03F2203/45394
摘要： A power amplifier (PA) using switched-bulk biasing to minimize the risk of output stage snapback effect is disclosed. An adaptive biasing of the output stage prevents device breakdown while accommodating large voltage swings. These protection techniques can be applied to all types of cascode configurations of a PA, including single-ended, differential, quadrature, segmented and any combination thereto.
摘要翻译：公开了一种使用切换批量偏置以最小化输出级快速恢复效应的风险的功率放大器（PA）。输出级的自适应偏置可防止器件击穿同时容纳大的电压摆幅。这些保护技术可以应用于PA的所有类型的共源共栅配置，包括单端，差分，正交，分段和任何组合。

8. 发明授权

US08604873B2 Ground partitioned power amplifier for stable operation 有权
标题翻译：接地分配功率放大器，稳定运行
公开(公告)号：US08604873B2
公开(公告)日：2013-12-10
申请号：US13310611
申请日：2011-12-02
申请人： Baker Scott , George Maxim , Stephen Franck , Chu Hsiung Ho
发明人： Baker Scott , George Maxim , Stephen Franck , Chu Hsiung Ho
IPC分类号： H03F1/38
CPC分类号： H03F1/30 , H03F1/34 , H03F3/193 , H03F2200/186 , H03F2200/189
摘要： Achievement of robust stability of a power amplifier (PA) that allows the sharing of the ground between the driver stages and the output stage is shown. A controlled amount of negative feedback is used to neutralize the local positive feedback that results from the driver-to-output stage ground sharing in the signal path, for example, a radio frequency (RF) signal path. The solution keeps a strong drive and a good performance of the PA. Exemplary embodiments are shown for the PA positive feedback neutralization. A first embodiment uses a ground signal divider while another embodiment uses a ground signal divider weighting technique.
摘要翻译：显示了允许在驱动级和输出级之间共享地面的功率放大器（PA）的鲁棒稳定性的实现。使用受控量的负反馈来中和由信号路径（例如射频（RF））信号路径中的驱动器到输出级地面共享产生的局部正反馈。该解决方案保持了强大的驱动力和良好的性能。示出了用于PA正反馈中和的示例性实施例。第一实施例使用接地信号分频器，而另一实施例使用接地信号分频器加权技术。

9. 发明授权

US08344806B1 Power amplifier with power feedback 有权
标题翻译：带功率反馈的功率放大器
公开(公告)号：US08344806B1
公开(公告)日：2013-01-01
申请号：US12893643
申请日：2010-09-29
申请人： Stephen Franck , Baker Scott , George Maxim
发明人： Stephen Franck , Baker Scott , George Maxim
IPC分类号： H03G3/30
CPC分类号： H03F1/0227 , H03F3/195
摘要： A power amplifier using a drain (collector) power control loop in which the feedback signal is an estimated output power level computed with a linear summation of the output sensed voltage and current. Both RF and baseband voltage and current sensing are possible, and voltage-mode or current-mode signal processing are feasible. This control loop technique is applicable to any means of drain power control circuits such as: supply regulators, DC-DC converters and others. Voltage error amplifiers can be used in conjunction with voltage feedback network, while current error amplifiers can be used with current feedback networks. Regulator sharing between different bands may be used as an area and cost reduction solution. The linear voltage and current summation driven power control technique can be also applied to the gate (base) power control scheme. Similarly, voltage-mode and current-mode signal processing can be implemented.
摘要翻译：一种使用漏极（集电极）功率控制回路的功率放大器，其中所述反馈信号是通过所述输出感测电压和电流的线性相加计算的估计输出功率电平。 RF和基带电压和电流检测都是可能的，电压模式或电流模式信号处理是可行的。该控制回路技术适用于诸如：电源稳压器，DC-DC转换器等漏极功率控制电路的任何方式。电压误差放大器可与电压反馈网络一起使用，而电流误差放大器可与电流反馈网络一起使用。可以将不同频带之间的调节器共享用作区域和成本降低解决方案。线性电压和电流求和驱动功率控制技术也可以应用于门（基）功率控制方案。类似地，可以实现电压模式和电流模式信号处理。

10. 发明授权

US07580691B1 System and method for reducing self interference 有权
标题翻译：减少自身干扰的系统和方法
公开(公告)号：US07580691B1
公开(公告)日：2009-08-25
申请号：US11195275
申请日：2005-08-02
申请人： David Reed , Baker Scott
发明人： David Reed , Baker Scott
IPC分类号： H04B1/06
CPC分类号： H04B15/06
摘要： A system for reducing self interference in a mobile terminal is provided. In general, the system includes a receiver including downconversion circuitry that converts a received radio frequency (RF) signal to a downconverted signal using one or more local oscillator frequencies. The downconverted signal is processed by digital circuitry clocked by one or more clock signals to obtain information from the RF signal. The local oscillator frequencies are provided by a frequency synthesizer as a function of an output frequency signal of a phase lock loop. Divider circuitry operates to divide the output frequency signal of the phase lock loop to provide the clock signals.
摘要翻译：提供了一种用于减少移动终端中的自身干扰的系统。通常，该系统包括一个接收机，它包括下变频电路，它使用一个或多个本地振荡器频率将接收到的射频（RF）信号转换成下变频信号。下变频信号由数字电路处理，由一个或多个时钟信号控制，以从RF信号获得信息。本地振荡器频率由频率合成器提供，作为锁相环的输出频率信号的函数。分频电路用于分频锁相环的输出频率信号以提供时钟信号。

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