-
1.发明授权Low bias current/temperature compensation current mirror for linear power amplifier 有权线性功率放大器的低偏置电流/温度补偿电流镜公开(公告)号：US06559722B1
公开(公告)日：2003-05-06
申请号：US09634628
申请日：2000-08-08
IPC分类号： H03F304
CPC分类号： H03F1/0272 , H03F1/301 , H03F2200/18 , H03F2200/504 , H03F2200/99
摘要： A power amplifier circuit is disclosed, whose power efficiency is optimized by operating its stages in substantially close to a Class B mode by reducing the quiescent current during low driver signal levels. As the driver signal amplitude increases, the amplifier is dynamically biased to operate in a Class AB mode. A further enhancement to the power amplifier circuit includes a temperature compensation circuit to adjust the bias of the amplifier so as to stabilize the performance over a wide temperature range.
摘要翻译： 公开了一种功率放大器电路，其功率效率通过在低驱动器信号电平期间减小静态电流来操作其基本上接近B类模式的级而被优化。 当驱动器信号幅度增加时，放大器被动态偏置以工作在AB类模式。 对功率放大器电路的进一步增强包括温度补偿电路，以调节放大器的偏置，以便在宽的温度范围内稳定性能。
-
2.发明授权Low bias current/temperature compensation current mirror for linear power amplifier 有权线性功率放大器的低偏置电流/温度补偿电流镜公开(公告)号：US06937102B2
公开(公告)日：2005-08-30
申请号：US10208636
申请日：2002-07-29
CPC分类号： H03F1/0272 , H03F1/301 , H03F2200/18 , H03F2200/504 , H03F2200/99
摘要： A power amplifier circuit whose performance is optimized by operating its stages in substantially close to a Class B mode by reducing quiescent current during low driver signal levels. As the driver signal amplitude increases, the operation of the amplifier is configured to dynamically adjust to be in a Class AB mode, thereby increasing the power efficiency of the overall circuit at kiw drive levels. A further enhancement to the power amplifier circuit includes a temperature compensation circuit to adjust the bias of the amplifier so as to stabilize the performance in a wide temperature range.
摘要翻译： 功率放大器电路，其功能通过在低驱动器信号电平期间降低静态电流来操作其基本上接近B类模式的级而被优化。 随着驱动器信号幅度的增大，放大器的工作被配置为动态调整为AB类模式，从而提高整个电路的功率效率（千瓦级）。 功率放大器电路的进一步增强包括温度补偿电路，用于调节放大器的偏置，以便在宽的温度范围内稳定性能。
-
3.发明授权公开(公告)号：US08456774B1
公开(公告)日：2013-06-04
申请号：US13453584
申请日：2012-04-23
申请人： Sriharsha Annadore , Mahendra Singh
发明人： Sriharsha Annadore , Mahendra Singh
IPC分类号： G11B5/02
CPC分类号： G11B20/10324 , G11B20/10009 , G11B2220/2516
摘要： A system including a first circuit and a second circuit. The first circuit is configured to (i) select a first portion of a signal based on a first offset, (ii) amplify the first portion of the signal according to a first function, and (iii) scale the amplified first portion based on a first factor to generate a first compensation for asymmetry in the first portion of the signal. The second circuit is configured to (i) select a second portion of the signal based on a second offset, (ii) amplify the second portion according to a second function, and (iii) scale the amplified second portion based on a second factor to generate a second compensation for asymmetry in the second portion of the signal.
摘要翻译： 一种包括第一电路和第二电路的系统。 第一电路被配置为（i）基于第一偏移来选择信号的第一部分，（ii）根据第一功能放大信号的第一部分，以及（iii）基于放大的第一部分缩放放大的第一部分 为信号的第一部分产生不对称性的第一补偿的第一因素。 第二电路被配置为（i）基于第二偏移来选择信号的第二部分，（ii）根据第二功能放大第二部分，以及（iii）基于第二因素对放大的第二部分进行缩放 对信号的第二部分中的不对称产生第二补偿。
-
4.发明申请Compositions Useful for the Treatment of Diabetes and Other Chronic Disorder 审中-公开用于治疗糖尿病和其他慢性疾病的组合物公开(公告)号：US20110034385A1
公开(公告)日：2011-02-10
申请号：US12936709
申请日：2008-10-13
IPC分类号： A61K38/23 , C07K14/585 , A61P19/10 , C07K1/00
CPC分类号： A61K9/0002 , A61K38/23 , A61K38/28
摘要： The present invention provides a supramolecular protein assembly useful as a protein therapeutics for the treatment of metabolic disorders particularly diabetes. The supramolecular protein assembly disclosed in the present invention consists of insoluble and aggregated oligomers the protein. The invention also provides pharmaceutical compositions comprising supramolecular protein assembly. The composition disclosed in the present invention particularly comprises supramolecular insulin assembly.
摘要翻译： 本发明提供了一种超分子蛋白组合物，其可用作治疗代谢疾病，特别是糖尿病的蛋白质治疗剂。 本发明中公开的超分子蛋白组合物由蛋白质的不溶性和聚集性低聚物组成。 本发明还提供了包含超分子蛋白质组装的药物组合物。 本发明中公开的组合物特别包括超分子胰岛素组装。
-
5.发明授权公开(公告)号：US07248111B1
公开(公告)日：2007-07-24
申请号：US11106254
申请日：2005-04-14
IPC分类号： H03G5/16
CPC分类号： H03G1/0088 , H03F1/0205 , H03F1/0261 , H03F1/302 , H03F3/191 , H03F3/343 , H03F2200/18 , H03F2200/222 , H03F2200/318 , H03F2200/387 , H03F2200/411 , H03G3/3047
摘要： A power amplifier with a multi-mode digital bias control circuit is provided. The power amplifier utilizes a complementary reference voltage generation circuit and a bias current-control circuit to generate a plurality of bias current levels for different output power levels. In an embodiment of the present invention, the power amplifier circuit is connected to a reference voltage and two control signals. Depending on the desired output power level, the control signals set the corresponding bias current in the amplifying transistors, to ensure sufficient linearity. The power amplifier is capable of operating at a very low quiescent current level, for example, 5 mA. As a result, a significant improvement in the power amplifier's overall efficiency is achieved, and the battery talk time of a wireless communication device is increased. The invention finds application in wireless communication devices such as CDMA, WCDMA, EDGE and WLAN mobile devices.
摘要翻译： 提供了具有多模数字偏置控制电路的功率放大器。 功率放大器利用互补参考电压产生电路和偏置电流控制电路来产生用于不同输出功率电平的多个偏置电流电平。 在本发明的实施例中，功率放大器电路连接到参考电压和两个控制信号。 根据期望的输出功率电平，控制信号在放大晶体管中设置相应的偏置电流，以确保足够的线性度。 功率放大器能够以非常低的静态电流电平工作，例如5 mA。 结果，实现了功率放大器的整体效率的显着改善，并且增加了无线通信设备的电池通话时间。 本发明应用于诸如CDMA，WCDMA，EDGE和WLAN移动设备的无线通信设备中。
-
6.发明授权公开(公告)号：US08164845B1
公开(公告)日：2012-04-24
申请号：US11835936
申请日：2007-08-08
申请人： Sriharsha Annadore , Mahendra Singh
发明人： Sriharsha Annadore , Mahendra Singh
IPC分类号： G11B5/02
CPC分类号： G11B20/10324 , G11B20/10009 , G11B2220/2516
摘要： A circuit for compensating asymmetry in a waveform of an input signal using a piecewise approximation of a saturation curve, the circuit including a first circuit configured to output a first compensation for a first section of the saturation curve using a first function and a second circuit configured to output a second compensation for a second section of the saturation curve using a second function. The second function is different than the first function. The first compensation and the second compensation provide the piecewise approximation of a region of the saturation curve. The region includes at least the first second and the second section.
摘要翻译： 一种用于使用饱和曲线的分段近似来补偿输入信号的波形不对称性的电路，所述电路包括第一电路，其被配置为使用第一功能输出饱和曲线的第一部分的第一补偿，并且配置第二电路 使用第二功能输出饱和曲线的第二部分的第二补偿。 第二个功能与第一个功能不同。 第一补偿和第二补偿提供饱和曲线区域的分段逼近。 该区域至少包括第一和第二部分。
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.022 秒)
