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1.发明申请SYSTEM, METHOD AND DEVICE FOR POWER AMPLIFICATION OF A SIGNAL IN AN INTEGRATED CIRCUIT 有权用于集成电路中信号功率放大的系统，方法和装置公开(公告)号：US20150214907A1
公开(公告)日：2015-07-30
申请号：US14165251
申请日：2014-01-27
Applicant: Texas Instruments Incorporated
Inventor： APU SIVADAS , Alok Joshi , Krishnaswamy Thiagarajan , Rakesh Kumar
CPC classification number: H03F3/211 , H03F3/195 , H03F3/245 , H03F3/72 , H03F2200/537 , H03F2200/541 , H03F2203/21145 , H03F2203/7221 , H03F2203/7236
Abstract: According to an aspect of present disclosure, a set of power amplifiers are used to amplify power of a signal for transmission. The signal powers from a set of power amplifiers are coupled to set of primary windings which are commonly coupled to a secondary winding such that the powers on the primary windings are additive in the secondary winding. A current path on the primary side is provided for flow of a current that is induced on at least one primary winding when a power amplifier coupled to that primary winding is in “off” state. As a result, the induced current is prevented from flowing in to the power amplifier that are in “on” state. Further, the current path isolates the power amplifiers from each other thereby enabling the power amplifiers to operate at the rated efficiency. In one embodiment, the current path is provided using a resistor network.
Abstract translation: 根据本公开的一个方面，使用一组功率放大器来放大用于传输的信号的功率。 来自一组功率放大器的信号功率耦合到通常耦合到次级绕组的初级绕组组，使得初级绕组上的功率在次级绕组中是相加的。 当耦合到该初级绕组的功率放大器处于“关闭”状态时，提供初级侧上的电流路径用于在至少一个初级绕组上感应的电流的流动。 结果，防止感应电流流入处于“接通”状态的功率放大器。 此外，电流路径将功率放大器彼此隔离，从而使得功率放大器能够以额定效率工作。 在一个实施例中，使用电阻网络提供电流路径。
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2.发明授权System, method and device for power amplification of a signal in an integrated circuit 有权用于集成电路中信号功率放大的系统，方法和装置公开(公告)号：US09450546B2
公开(公告)日：2016-09-20
申请号：US14165251
申请日：2014-01-27
Applicant: Texas Instruments Incorporated
Inventor： Apu Sivadas , Alok Joshi , Krishnaswamy Thiagarajan , Rakesh Kumar
CPC classification number: H03F3/211 , H03F3/195 , H03F3/245 , H03F3/72 , H03F2200/537 , H03F2200/541 , H03F2203/21145 , H03F2203/7221 , H03F2203/7236
Abstract: According to an aspect of present disclosure, a set of power amplifiers are used to amplify power of a signal for transmission. The signal powers from a set of power amplifiers are coupled to set of primary windings which are commonly coupled to a secondary winding such that the powers on the primary windings are additive in the secondary winding. A current path on the primary side is provided for flow of a current that is induced on at least one primary winding when a power amplifier coupled to that primary winding is in “off” state. As a result, the induced current is prevented from flowing in to the power amplifier that are in “on” state. Further, the current path isolates the power amplifiers from each other thereby enabling the power amplifiers to operate at the rated efficiency. In one embodiment, the current path is provided using a resistor network.
Abstract translation: 根据本公开的一个方面，使用一组功率放大器来放大用于传输的信号的功率。 来自一组功率放大器的信号功率耦合到通常耦合到次级绕组的初级绕组组，使得初级绕组上的功率在次级绕组中是相加的。 当耦合到该初级绕组的功率放大器处于“关闭”状态时，提供初级侧上的电流路径用于在至少一个初级绕组上感应的电流的流动。 结果，防止感应电流流入处于“接通”状态的功率放大器。 此外，电流路径将功率放大器彼此隔离，从而使得功率放大器能够以额定效率工作。 在一个实施例中，使用电阻网络提供电流路径。
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