公开(公告)号：WO2003047101A1

公开(公告)日：2003-06-05

申请号：PCT/US2002/034483

申请日：2002-10-28

Applicant: MOTOROLA, INC.

Inventor： WAGH, Poojan, A. ,  MIDYA, Pallab ,  RAKERS, Patrick

IPC: H03K7/08

CPC classification number: H03K7/00 ,  H04B1/04

Abstract: An in-phase pulse signal modulator (30a) of the modulated signal source provides an in-phase pulse modulated signal in response to a reception of a baseband in-phase signal and an in-phase clock signal with the in-phase clock signal and the in-phase pulse modulated signal being synchronized. A quadrature pulse signal modulator (30b) of the modulated signal source provides a quadrature pulse modulated signal in response to a reception of a baseband quadrature signal and a quadrature clock signal with the quadrature clock signal and the quadrature pulse modulated signal being synchronized. A switch signal generator (40) of the modulated signal source generates an in-phase switch signal and a quadrature switch signal in response to a reception of the in-phase clock signal, the in-phase pulse modulated signal, the quadrature clock signal, and the quadrature pulse modulated signal.

Abstract translation: 调制信号源的同相脉冲信号调制器（30a）响应于基带同相信号和具有同相时钟信号的同相时钟信号的接收而提供同相脉冲调制信号，以及 同步脉冲调制信号被同步。 调制信号源的正交脉冲信号调制器（30b）响应于正交时钟信号和正交脉冲调制信号被同步的基带正交信号和正交时钟信号的接收而提供正交脉冲调制信号。 调制信号源的开关信号发生器（40）响应于同相时钟信号，同相脉冲调制信号，正交时钟信号的接收，产生同相开关信号和正交开关信号， 和正交脉冲调制信号。

公开(公告)号：EP1547251A2

公开(公告)日：2005-06-29

申请号：EP03749333.5

申请日：2003-08-22

Applicant: MOTOROLA, INC.

Inventor： MIDYA, Pallab ,  ROECKNER, William, C.

IPC: H03M7/00 ,  H03M3/04 ,  H03M1/06

CPC classification number: H03M1/0682 ,  H03F3/2173 ,  H03F2200/351 ,  H03M1/504

Abstract: Systems and methods are described for full bridge integral noise shaping for quantization of pulse width modulated signals. A method for full bridge integral noise shaping comprises: receiving a first and a second reference PWM signal (401, 402); summing the first and second reference PWM signals with a quantization error correction (504); quantizing the sum into a first and a second output PWM signal (404, 405); differentially integrating the first and second reference PWM signals and the first and second output PWM signals according to a full bridge integral noise shaping algorithm to obtain the quantization error correction. An apparatus for performing a full bridge integralnoise shaping quantization of a pulse modulated signal, includes: a single-ended to differential conversion circuit (203); and a full bridge INS quantizer circuit (403), coupled to the single-ended to differential conversion circuit.

公开(公告)号：WO2003041269A1

公开(公告)日：2003-05-15

申请号：PCT/US2002/033081

申请日：2002-10-16

Applicant: MOTOROLA, INC., A CORPORATION OF THE STATE OF DELAWARE

Inventor： ROECKNER, William, ,  MIDYA, Pallab ,  BUCHWALD, Gregory

IPC: H03F3/217

CPC classification number: H03F3/2171 ,  H04B15/04

Abstract: A switching amplifier (20) generates noise at its switching frequency and harmonics thereof. The noise at these harmonics, for an audio amplifier, will be generated with significant amplitude in the AM band. Thus, an AM tuner (12) will experience interference problems if the tuner frequency is sufficiently close to one of these harmonics. To avoid this problem the switching frequency of the switching amplifier is chosen based on the tuner frequency. Thus, the switching frequency is chosen to avoid having harmonics at or too near the chosen tuner frequency. The switching amplifier is disabled when the tuner is in seek or scan mode. Instead of using the tuner frequency to determine what switching frequency should be used to avoid interference, the interference can be detected directly to cause a change in the switching frequency and thus remove the interference.

Abstract translation: 开关放大器（20）以其开关频率和谐波产生噪声。 对于音频放大器，这些谐波的噪声将在AM频带中以显着的幅度产生。 因此，如果调谐器频率足够接近这些谐波之一，则AM调谐器（12）将经历干扰问题。 为了避免这个问题，基于调谐器频率来选择开关放大器的开关频率。 因此，选择开关频率以避免在所选择的调谐器频率处或谐波附近。 当调谐器处于寻线或扫描模式时，开关放大器被禁止。 不是使用调谐器频率来确定应该使用什么开关频率来避免干扰，所以可以直接检测干扰，导致开关频率的变化，从而消除干扰。

公开(公告)号：WO2002099966A1

公开(公告)日：2002-12-12

申请号：PCT/US2002/013214

申请日：2002-04-24

Applicant: MOTOROLA, INC.

Inventor： MIDYA, Pallab ,  ROECKNER, William, J. ,  WAGH, Poojan, A.

IPC: H03F3/217

CPC classification number: H03F3/2175

Abstract: A switching amplifier (15) includes a power stage (18) and a digital correction circuit (16). The digital correction circuit (16) is for correcting nonlinearity and power supply noise introduced into a digital signal during power stage amplification. The digital correction circuit (16) receives a digital pulse modulated input signal from a processor (14) and an amplified pulse modulated output signal from the power stage (18), and performs a discrete-time pulse edge correction on the digital pulse modulated input signal to provide a corrected digital pulse modulated signal. The corrected digital pulse modulated signal is used as an input for the power stage (18).

Abstract translation: 开关放大器（15）包括功率级（18）和数字校正电路（16）。 数字校正电路（16）用于校正在功率级放大期间引入数字信号的非线性和电源噪声。 数字校正电路（16）从处理器（14）接收数字脉冲调制输入信号和来自功率级（18）的经放大的脉冲调制输出信号，并对数字脉冲调制输入端执行离散时间脉冲边缘校正 信号以提供校正的数字脉冲调制信号。 校正的数字脉冲调制信号用作功率级（18）的输入。

公开(公告)号：EP1581994A2

公开(公告)日：2005-10-05

申请号：EP03796778.3

申请日：2003-12-05

Applicant: MOTOROLA, INC.

Inventor： MIDYA, Pallab ,  GROSSPIETSCH, John ,  WASHINGTON, Michael

IPC: H03F3/28

CPC classification number: H03F3/211 ,  H03F1/0222 ,  H03F1/0277 ,  H03G3/004

Abstract: A power amplifier circuit for receiving a variable envelope input signal and for producing an amplified output signal is provided. The power amplifier circuit includes an envelope approximation circuit, an envelope amplifier circuit, a phasor approximation circuit, a quadrature modulation circuit, and a power amplifier. The envelope approximation circuit receives the variable envelope input signal and produces a bandlimited estimated envelope signal, corresponding to the amplitude of the variable envelope input signal. The bandlimited estimated envelope signal is then amplified by an envelope amplifier circuit. The amplified envelope signal is then coupled to the supply input of the power amplifer. The phasor approximation circuit receives the variable envelope input signal and produces a bandlimited estimated phasor signal. The quadrature modulation circuit receives the estimated phase signal and produces a modulated phase signal. The modulated phase signal is then coupled to the signal input of the power amplifier. The power amplifier then produces an amplified output signal.

公开(公告)号：EP1423912A1

公开(公告)日：2004-06-02

申请号：EP02753467.6

申请日：2002-08-13

Applicant: MOTOROLA, INC.

Inventor： MIDYA, Pallab ,  ROECKNER, William

IPC: H03F3/217

CPC classification number: H03F3/2173 ,  H03F3/2171 ,  H03F2200/342 ,  H03F2200/345 ,  H03F2200/351

Abstract: A modulated signal is connected to a full bridge switching amplifier (16, 18, 28, 30) and is compensated to remove a predetermined frequency and its odd harmonics. The compensation inverts and delays (26) a signal that is connected to a first half of the full bridge and applies the delayed inverted signal to a second half of the full bridge. By delaying by an odd number of half cycles, the carrier and its odd harmonics are cancelled because the same signal exists on both sides of the full bridge output. When these two same signals are subtracted by the full bridge action, the carrier and odd harmonics are suppressed. Spectral nulls may be provided for various signal applications, not just audio, and when various types of modulation techniques are used, such as PWM and PDM.

公开(公告)号：WO2004030223A2

公开(公告)日：2004-04-08

申请号：PCT/US2003/027431

申请日：2003-08-22

Applicant: MOTOROLA, INC.

Inventor： MIDYA, Pallab ,  ROECKNER, William, C.

IPC: H03M7/00

CPC classification number: H03M1/0682 ,  H03F3/2173 ,  H03F2200/351 ,  H03M1/504

Abstract: Systems and methods are described for full bridge integral noise shaping for quantization of pulse width modulated signals. A method for full bridge integral noise shaping comprises: receiving a first and a second reference PWM signal (401, 402); summing the first and second reference PWM signals with a quantization error correction (504); quantizing the sum into a first and a second output PWM signal (404, 405); differentially integrating the first and second reference PWM signals and the first and second output PWM signals according to a full bridge integral noise shaping algorithm to obtain the quantization error correction. An apparatus for performing a full bridge integralnoise shaping quantization of a pulse modulated signal, includes: a single-ended to differential conversion circuit (203); and a full bridge INS quantizer circuit (403), coupled to the single-ended to differential conversion circuit.

Abstract translation: 描述了用于量化脉冲宽度调制信号的全桥积分噪声整形的系统和方法。 一种用于全桥积分噪声整形的方法，包括：接收第一和第二参考PWM信号（401,402）; 用量化误差校正（504）对第一和第二参考PWM信号求和; 将所述和量化为第一和第二输出PWM信号（404,405）; 根据全桥积分噪声整形算法对第一和第二参考PWM信号以及第一和第二输出PWM信号进行差分积分以获得量化误差校正。 一种用于执行全桥积分整形脉冲调制信号的量化的装置，包括：单端到差分转换电路（203）; 以及耦合到单端到差分转换电路的全桥INS量化器电路（403）。

公开(公告)号：WO2003061136A1

公开(公告)日：2003-07-24

申请号：PCT/US2002/039957

申请日：2002-12-13

Applicant: MOTOROLA, INC.

Inventor： ROECKNER, William, J. ,  MIDYA, Pallab ,  WAGH, Poojan, A. ,  RINDERKNECHT, William, J.

IPC: H03M5/08

CPC classification number: H03F3/2175 ,  H03F2200/331 ,  H03M1/822 ,  H03M5/08

Abstract: A method and apparatus for a pulse width modulated (PWM) signal (30, 130) is provided. The input is a digital signal which is a modulated signal (24, 124). In the illustrated form, the modulated input signal is either a PDM signal or a PCM signal. In one embodiment of the present invention a PCM to PWM converter (16, 116) includes correction of duty ratio circuitry (48). The methodology used may include recursion on the values obtained after prediction, interpolation, and correction. The digital to analog conversion system (10) uses a PDM to PWM converter (20) which operates in an all digital domain and includes no analog circuitry.

Abstract translation: 提供了一种用于脉宽调制（PWM）信号（30,130）的方法和装置。 输入是作为调制信号（24,124）的数字信号。 在所示的形式中，调制输入信号是PDM信号或PCM信号。 在本发明的一个实施例中，PCM至PWM转换器（16,116）包括占空比电路（48）的校正。 所使用的方法可以包括在预测，插值和校正之后获得的值的递归。 数模转换系统（10）使用PDM到PWM转换器（20），其在全数字域中工作，并且不包括模拟电路。

公开(公告)号：WO1998005048A1

公开(公告)日：1998-02-05

申请号：PCT/US1997011900

申请日：1997-07-10

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  MIDYA, Pallab ,  SCHAMBERGER, Mark, Allen

IPC: H01F27/28

CPC classification number: H01F27/2804 ,  H01F2017/0086

Abstract: The present invention provides a planar magnetic field inductor/transformer (100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1700, 1800) and method (1900, 2000) that has a plurality of at least three planar loops/spiral conductor coils (106, 108, 110, 112) which are arranged one after another in a simple/compound loop fashion. The loops (106, 108, 110, 112) carry a current produced by a signal source, and the plurality of planar adjacent loops/spiral conductor coils (106, 108, 110, 112) are arranged to maximize cancellation of a moment of the plurality of loops/spiral conductor coils (106, 108, 110, 112) over a predetermined range.

Abstract translation: 本发明提供一种平面磁场电感器/变压器（100,200,300,400,500,600,700,800,900,1000,1700,1800）和方法（1900,2000），其至少具有多个 三个平面回路/螺旋导体线圈（106,108,110,112），其以简单/复合回路方式一个接一个地布置。 环（106,108,110,112）承载由信号源产生的电流，并且多个平面相邻的环/螺旋导体线圈（106,108,110,112）被布置成最大限度地消除了 在预定范围内的多个环/螺旋导体线圈（106,108,110,112）。

公开(公告)号：WO2004062088A2

公开(公告)日：2004-07-22

申请号：PCT/US2003/038892

申请日：2003-12-05

Applicant: MOTOROLA INC.

Inventor： MIDYA, Pallab ,  GROSSPIETSCH, John ,  WASHINGTON, Michael

IPC: H03F

CPC classification number: H03F3/211 ,  H03F1/0222 ,  H03F1/0277 ,  H03G3/004

Abstract: A power amplifier circuit for receiving a variable envelope input signal and for producing an amplified output signal is provided. The power amplifier circuit includes an envelope approximation circuit, an envelope amplifier circuit, a phasor approximation circuit, a quadrature modulation circuit, and a power amplifier. The envelope approximation circuit receives the variable envelope input signal and produces a bandlimited estimated envelope signal, corresponding to the amplitude of the variable envelope input signal. The bandlimited estimated envelope signal is then amplified by an envelope amplifier circuit. The amplified envelope signal is then coupled to the supply input of the power amplifer. The phasor approximation circuit receives the variable envelope input signal and produces a bandlimited estimated phasor signal. The quadrature modulation circuit receives the estimated phase signal and produces a modulated phase signal. The modulated phase signal is then coupled to the signal input of the power amplifier. The power amplifier then produces an amplified output signal.

Abstract translation: 提供了用于接收可变包络输入信号并用于产生放大的输出信号的功率放大器电路。 功率放大器电路包括包络近似电路，包络放大器电路，相量近似电路，正交调制电路和功率放大器。 包络近似电路接收可变包络输入信号并产生对应于可变包络输入信号的振幅的带限估计包络信号。 带限估计包络信号然后由包络放大器电路放大。 然后放大的包络信号被耦合到功率放大器的电源输入端。 相量近似电路接收可变包络输入信号并产生带限估计相量信号。 正交调制电路接收估计的相位信号并产生调制的相位信号。 然后调制后的相位信号被耦合到功率放大器的信号输入端。 功率放大器然后产生放大的输出信号。