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    DEED FORWARD RF POWER AMPLIFIER WITH HIGH EFFICIENCY MAIN AMPLIFIER AND HIGHLY LINEAR ERROR AMPLIFIER
    1.
    发明申请
    DEED FORWARD RF POWER AMPLIFIER WITH HIGH EFFICIENCY MAIN AMPLIFIER AND HIGHLY LINEAR ERROR AMPLIFIER 审中-公开
    具有高效率放大器和高线性误差放大器的前置RF功率放大器

    公开(公告)号：WO2003069773A2

    公开(公告)日：2003-08-21

    申请号：PCT/US2003/003948

    申请日：2003-02-12

    Applicant: POWERWAVE TECHNOLOGIES, INC. ,  GURVICH, Mark ,  ARBAB, Ezmarai ,  VASSILAKIS, Bill

    Inventor： GURVICH, Mark ,  ARBAB, Ezmarai ,  VASSILAKIS, Bill

    IPC: H03F

    CPC classification number: H03F1/3235

    Abstract: A feed forward RF power amplifier which provides both high efficiency and minimal distortion in broad bandwidth RF applications. The feed forward power amplifier includes a main amplifier (16) biased to provide high efficiency and an error amplifier (34) biased to provide highly linear operation through substantially the entire operating range. Signal peaks which introduce distortion components at the main amplifier output are cancelled by the linear operation of the error amplifier (34).

    Abstract translation: 前馈射频功率放大器，可在宽带宽射频应用中提供高效率和最小失真。 前馈功率放大器包括偏置以提供高效率的主放大器16以及被偏置以在基本上整个工作范围内提供高线性操作的误差放大器34。 在主放大器输出处引入失真分量的信号峰值被误差放大器34的线性运算所抵消。

    ENHANCED EFFICIENCY FEED FORWARD POWER AMPLIFIER WITH DELAY MISMATCHED ERROR CANCELLATION LOOP
    2.
    发明申请
    ENHANCED EFFICIENCY FEED FORWARD POWER AMPLIFIER WITH DELAY MISMATCHED ERROR CANCELLATION LOOP 审中-公开
    增强效率的前馈功率放大器，具有延迟误差错误消除环路

    公开(公告)号：WO2007106337A3

    公开(公告)日：2008-04-24

    申请号：PCT/US2007005480

    申请日：2007-03-02

    Applicant: POWERWAVE TECHNOLOGIES INC ,  ARBAB EZMARAI ,  GURVICH MARK ,  HUNTON MATTHEW J ,  RABINOVICH ALEXANDER ,  VASSILAKIS BILL

    Inventor： ARBAB EZMARAI ,  GURVICH MARK ,  HUNTON MATTHEW J ,  RABINOVICH ALEXANDER ,  VASSILAKIS BILL

    IPC: H03F1/26

    CPC classification number: H03F1/32 ,  H03F1/3223 ,  H03F1/3229 ,  H03F1/3235 ,  H03F2200/204 ,  H03F2200/321 ,  H03F2201/3212

    Abstract: A delay mismatched feed forward power amplifier is disclosed Loop 1 includes a main amplifier (215) and is used to derive a carrier cancelled sample of the main amplifier output Loop 2 includes an error amplifier (400) used to amplify the carrier cancelled signal derived from Loop 1 operation in order to cancel distortion products generated due to the nonlinear nature of the main amplifier Loop 2 also utilizes a very short Loop 2 delay line (225) A significant efficiency gain is provided due to reduced output power losses associated with the Loop 2 delay line (225) Lower output losses also results in lower distortion levels produced by the main amplifier (215) This, in turn, reduces the size and performance requirements placed on the error amplifier (400) A smaller and more efficient error amplifier (400) is employed resulting in further amplifier system efficiency improvement

    Abstract translation: 公开了延迟失配的前馈功率放大器。环路1包括主放大器（215），用于导出主放大器输出的载波消除采样。回路2包括误差放大器（400），用于放大从 为了消除由于主放大器的非线性而产生的失真产物的环路1操作，环路2还利用非常短的环路2延迟线（225）。由于与环路2相关联的降低的输出功率损耗，提供了显着的效率增益 延迟线（225）较低的输出损耗也会导致主放大器（215）产生的失真水平较低。这又降低了误差放大器（400）上的尺寸和性能要求。一个更小更高效的误差放大器（400 ），从而进一步提高放大器系统的效率

    ENHANCED EFFICIENCY FEED FORWARD POWER AMPLIFIER UTILIZING REDUCED CANCELLATION BANDWIDTH AND SMALL ERROR AMPLIFIER
    4.
    发明申请
    ENHANCED EFFICIENCY FEED FORWARD POWER AMPLIFIER UTILIZING REDUCED CANCELLATION BANDWIDTH AND SMALL ERROR AMPLIFIER 审中-公开

    公开(公告)号：WO2004075397A3

    公开(公告)日：2004-09-02

    申请号：PCT/US2004/003847

    申请日：2004-02-11

    Applicant: POWERWAVE TECHNOLOGIES, INC. ,  GURVICH, Mark ,  VASSILAKIS, Bill ,  ARBAB, Ezmarai ,  RABINOVICH, Alexander

    Inventor： GURVICH, Mark ,  VASSILAKIS, Bill ,  ARBAB, Ezmarai ,  RABINOVICH, Alexander

    IPC: H03F3/66

    Abstract: A feed forward power amplifier is disclosed which utilizes three signal cancellation loops. Loop 1 includes a main amplifier (215) and is used to derive a carrier cancelled sample of the main amplifier output. Loop 2 includes an error amplifier (400) used to amplify the carrier cancelled signal derived from Loop 1 operation in order to cancel distortion products generated due to the nonlinear nature of the main amplifier (215). Loop 2 also utilizes a very short Loop 2 delay line (225). A significant efficiency gain is provided due to reduced output power losses associated with the Loop 2 delay line (225). Lower output losses also results in lower distortion levels produced by the main amplifier (2.15). This, in turn, reduces the size and performance requirements placed on the error amplifier (400). A smaller and more efficient error amplifier (400) is employed resulting in further amplifier system efficiency improvement. A spurious signal detector (805) for out-of-band distortion detection and an associated microcontroller (810) for Loop 1 and Loop 2 control are also provided. A third signal cancellation loop is utilized to sample the amplifier output and reduce the carrier level of the signals sampled at the output of the amplifier before providing the sampled output to the spurious signal detector (805). By significantly reducing the carrier power level relative to distortion power levels a cost effective spurious signal detector (805) can be utilized. This also provides a faster conversion time in Loop 2 cancellation and enhanced cancellation of out-of-band distortion products due to a greater useful dynamic range available for the DSP (817) employed in the spurious signal detector (805).

    AN ELEVATOR LOAD BEARING MEMBER
    7.
    发明申请
    AN ELEVATOR LOAD BEARING MEMBER 审中-公开
    电梯负载轴承会员

    公开(公告)号：WO2009041970A1

    公开(公告)日：2009-04-02

    申请号：PCT/US2007/079646

    申请日：2007-09-27

    Applicant: OTIS ELEVATOR COMPANY ,  FARGO, Richard, N. ,  MA, Jun ,  GURVICH, Mark, R.

    Inventor： FARGO, Richard, N. ,  MA, Jun ,  GURVICH, Mark, R.

    IPC: B66B7/06

    CPC classification number: B66B7/062 ,  D07B1/22 ,  D07B5/005 ,  D07B5/006 ,  D07B2201/2086 ,  D07B2501/2007 ,  H01L2924/14 ,  H01L2924/00

    Abstract: A load bearing member (34) for supporting an elevator car (10) has a plurality of tension members (38) that bear the weight and counterweight of the elevator car (10). The plurality of tension members extends along a length. An outer cover (42) envelopes the plurality of tension members and has a first surface and a second surface. The plurality of tension members are sandwiched between the first surface (46) and the second surf ace (48). The first surface is for traction on a sheave (22). The first surface and the second surface define a cross-section (52) transverse to the length of the load bearing member. The cross-section has a first end portion (56), a middle portion (60) and a second end portion (64). The middle portion has a first width (wl) between the first surface and the second surface which is smaller than a second width (w2) between the first surface and the second surface of one of the first end portion and the second end portion.

    Abstract translation: 用于支撑电梯轿厢（10）的承载构件（34）具有承受电梯轿厢（10）的重量和配重的多个张力构件（38）。 多个张力构件沿长度延伸。 外盖（42）包围多个张力构件并具有第一表面和第二表面。 多个张力构件被夹在第一表面（46）和第二冲浪（48）之间。 第一表面用于牵引轮（22）。 第一表面和第二表面限定横向于承载构件的长度的横截面（52）。 横截面具有第一端部（56），中间部分（60）和第二端部（64）。 中间部分具有第一表面和第二表面之间的第一宽度（w1），该第一宽度（W1）小于第一端部和第二端部之一的第一表面和第二表面之间的第二宽度（w2）。

    ENHANCED EFFICIENCY FEED FOWARD POWER AMPLIFIER WITH DELAY MISMATCHED ERROR CANCELLATION LOOP
    8.
    发明申请
    ENHANCED EFFICIENCY FEED FOWARD POWER AMPLIFIER WITH DELAY MISMATCHED ERROR CANCELLATION LOOP 审中-公开
    增强效率输入功率放大器与延迟误差错误消除环路

    公开(公告)号：WO2007106337A2

    公开(公告)日：2007-09-20

    申请号：PCT/US2007/005480

    申请日：2007-03-02

    Applicant: POWERWAVE TECHNOLOGIES, INC. ,  ARBAB, Ezmarai ,  GURVICH, Mark ,  HUNTON, Matthew, J. ,  RABINOVICH, Alexander ,  VASSILAKIS, Bill

    Inventor： ARBAB, Ezmarai ,  GURVICH, Mark ,  HUNTON, Matthew, J. ,  RABINOVICH, Alexander ,  VASSILAKIS, Bill

    IPC: H03F1/26

    CPC classification number: H03F1/32 ,  H03F1/3223 ,  H03F1/3229 ,  H03F1/3235 ,  H03F2200/204 ,  H03F2200/321 ,  H03F2201/3212

    Abstract: A delay mismatched feed forward power amplifier is disclosed. Loop 1 includes a main amplifier (215) and is used to derive a carrier cancelled sample of the main amplifier output. Loop 2 includes an error amplifier (400) used to amplify the carrier cancelled signal derived from Loop 1 operation in order to cancel distortion products generated due to the nonlinear nature of the main amplifier. Loop 2 also utilizes a very short Loop 2 delay line (225). A significant efficiency gain is provided due to reduced output power losses associated with the Loop 2 delay line (225). Lower output losses also results in lower distortion levels produced by the main amplifier (215). This, in turn, reduces the size and performance requirements placed on the error amplifier (400). A smaller and more efficient error amplifier (400) is employed resulting in further amplifier system efficiency improvement. The delay mismatch is compensated by a third control loop, a special adaptive control algorithm or a combination thereof.

    Abstract translation: 公开了延迟失配的前馈功率放大器。 环路1包括主放大器（215），并用于导出主放大器输出的载波消除采样。 环路2包括用于放大从环路1操作导出的载波消除信号的误差放大器（400），以便消除由于主放大器的非线性特性而产生的失真产物。 环路2还使用非常短的环路2延迟线（225）。 由于与环路2延迟线（225）相关联的降低的输出功率损耗，提供了显着的效率增益。 较低的输出损耗也导致主放大器（215）产生的较低的失真电平。 这又降低了放置在误差放大器（400）上的尺寸和性能要求。 使用更小且更有效的误差放大器（400），导致进一步的放大器系统效率提高。 延迟失配由第三控制回路，特殊自适应控制算法或其组合补偿。

    ENHANCED EFFICIENCY FEED FORWARD POWER AMPLIFIER UTILIZING REDUCED CANCELLATION BANDWIDTH AND SMALL ERROR AMPLIFIER
    9.
    发明申请
    ENHANCED EFFICIENCY FEED FORWARD POWER AMPLIFIER UTILIZING REDUCED CANCELLATION BANDWIDTH AND SMALL ERROR AMPLIFIER 审中-公开
    增强效率的前馈功率放大器利用减少的取消带宽和小错误放大器

    公开(公告)号：WO2004075397A2

    公开(公告)日：2004-09-02

    申请号：PCT/US2004003847

    申请日：2004-02-11

    Applicant: POWERWAVE TECHNOLOGIES INC ,  GURVICH MARK ,  VASSILAKIS BILL ,  ARBAB EZMARAI ,  RABINOVICH ALEXANDER

    Inventor： GURVICH MARK ,  VASSILAKIS BILL ,  ARBAB EZMARAI ,  RABINOVICH ALEXANDER

    IPC: H03F1/32 ,  H03F

    CPC classification number: H03F1/3229 ,  H03F1/3247

    Abstract: A feed forward power amplifier is disclosed which utilizes three signal cancellation loops. Loop 1 includes a main amplifier (215) and is used to derive a carrier cancelled sample of the main amplifier output. Loop 2 includes an error amplifier (400) used to amplify the carrier cancelled signal derived from Loop 1 operation in order to cancel distortion products generated due to the nonlinear nature of the main amplifier (215). Loop 2 also utilizes a very short Loop 2 delay line (225). A significant efficiency gain is provided due to reduced output power losses associated with the Loop 2 delay line (225). Lower output losses also results in lower distortion levels produced by the main amplifier (2.15). This, in turn, reduces the size and performance requirements placed on the error amplifier (400). A smaller and more efficient error amplifier (400) is employed resulting in further amplifier system efficiency improvement. A spurious signal detector (805) for out-of-band distortion detection and an associated microcontroller (810) for Loop 1 and Loop 2 control are also provided. A third signal cancellation loop is utilized to sample the amplifier output and reduce the carrier level of the signals sampled at the output of the amplifier before providing the sampled output to the spurious signal detector (805). By significantly reducing the carrier power level relative to distortion power levels a cost effective spurious signal detector (805) can be utilized. This also provides a faster conversion time in Loop 2 cancellation and enhanced cancellation of out-of-band distortion products due to a greater useful dynamic range available for the DSP (817) employed in the spurious signal detector (805).

    Abstract translation: 公开了一种利用三个信号消除环路的前馈功率放大器。 环路1包括主放大器（215），并用于导出主放大器输出的载波消除采样。 环路2包括用于放大从环路1操作导出的载波消除信号的误差放大器（400），以便消除由于主放大器（215）的非线性特性而产生的失真产物。 环路2还使用非常短的环路2延迟线（225）。 由于与环路2延迟线（225）相关联的降低的输出功率损耗，提供了显着的效率增益。 较低的输出损耗也会导致主放大器产生的失真电平较低（2.15）。 这又降低了放置在误差放大器（400）上的尺寸和性能要求。 使用更小且更有效的误差放大器（400），导致进一步的放大器系统效率提高。 还提供了用于带外失真检测的杂散信号检测器（805）和用于环路1和环路2控制的相关联的微控制器（810）。 在将采样输出提供给寄生信号检测器（805）之前，利用第三信号消除环路对放大器输出进行采样并降低在放大器的输出处采样的信号的载波电平。 通过相对于失真功率电平显着降低载波功率电平，可以利用成本有效的寄生信号检测器（805）。 由于可用于寄生信号检测器（805）中使用的DSP（817）的更大的有用动态范围，这也提供了循环2消除中的更快的转换时间和带外失真产物的增强的消除。

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