公开(公告)号：US08638168B1

公开(公告)日：2014-01-28

申请号：US13490901

申请日：2012-06-07

申请人： David M. Signoff ,  Li Lin ,  Renaldi Winoto ,  Wayne A. Loeb ,  Shu-Hsien Liao ,  Ming He

发明人： David M. Signoff ,  Li Lin ,  Renaldi Winoto ,  Wayne A. Loeb ,  Shu-Hsien Liao ,  Ming He

IPC分类号： H03F3/68

CPC分类号： H03F3/68 ,  H03F1/0244 ,  H03F3/2175 ,  H03F3/24

摘要： Systems and methods for power amplification using multiple digital amplifiers are provided. A power amplifier includes a first digital amplifier configured to process a digital input signal to generate a first analog output signal. The first analog output signal is configured to have a magnitude corresponding to amplitude information of the digital input signal. The power amplifier further includes a second digital amplifier configured to process an adjusted digital input signal to generate a second analog output signal. The second analog output signal is configured to have a magnitude corresponding to amplitude information of the adjusted digital input signal. An adjustment module configured to adjust amplitude information and phase information of the digital input signal generates the adjusted digital input signal. The digital input signal is adjusted to control a relationship between the first analog output signal and the second analog output signal.

摘要翻译： 提供了使用多个数字放大器进行功率放大的系统和方法。 功率放大器包括被配置为处理数字输入信号以产生第一模拟输出信号的第一数字放大器。 第一模拟输出信号被配置为具有对应于数字输入信号的振幅信息的幅度。 功率放大器还包括第二数字放大器，其被配置为处理经调整的数字输入信号以产生第二模拟输出信号。 第二模拟输出信号被配置为具有对应于经调整的数字输入信号的振幅信息的幅度。 被配置为调整数字输入信号的幅度信息和相位信息的调整模块生成调整后的数字输入信号。 调整数字输入信号以控制第一模拟输出信号和第二模拟输出信号之间的关系。

公开(公告)号：US20120146730A1

公开(公告)日：2012-06-14

申请号：US13306289

申请日：2011-11-29

申请人： David M. Signoff ,  Wayne A. Loeb ,  Ming He

发明人： David M. Signoff ,  Wayne A. Loeb ,  Ming He

IPC分类号： H03G3/30

CPC分类号： H03F1/30 ,  H03F2200/447 ,  H03F2200/468 ,  H03G3/3042

摘要： A system includes a power amplifier, a preamplifier, a first temperature sensor, and a bias generator. The power amplifier has a first gain, which is a function of a temperature of the power amplifier. The preamplifier has a second gain, amplifies an input signal, and outputs an amplified signal to the power amplifier. The first temperature sensor senses the temperature and generates a first signal. The bias generator generates a first biasing signal to bias the power amplifier, generates a second biasing signal to bias the preamplifier, and adjusts the second gain by adjusting the second biasing signal based on the first signal. The adjusted second gain compensates a change in the first gain due to the change in the temperature.

摘要翻译： 一种系统包括功率放大器，前置放大器，第一温度传感器和偏置发生器。 功率放大器具有第一增益，其是功率放大器的温度的函数。 前置放大器具有第二增益，放大输入信号，并将放大的信号输出到功率放大器。 第一温度传感器感测温度并产生第一信号。 偏置发生器产生第一偏置信号以偏置功率放大器，产生第二偏置信号以偏置前置放大器，并且通过基于第一信号调整第二偏置信号来调整第二增益。 调整后的第二增益补偿了由于温度变化引起的第一增益的变化。

公开(公告)号：US08441320B2

公开(公告)日：2013-05-14

申请号：US13306289

申请日：2011-11-29

申请人： David M. Signoff ,  Wayne A. Loeb ,  Ming He

发明人： David M. Signoff ,  Wayne A. Loeb ,  Ming He

IPC分类号： H03F3/04

CPC分类号： H03F1/30 ,  H03F2200/447 ,  H03F2200/468 ,  H03G3/3042

摘要： A system includes a power amplifier, a preamplifier, a first temperature sensor, and a bias generator. The power amplifier has a first gain, which is a function of a temperature of the power amplifier. The preamplifier has a second gain, amplifies an input signal, and outputs an amplified signal to the power amplifier. The first temperature sensor senses the temperature and generates a first signal. The bias generator generates a first biasing signal to bias the power amplifier, generates a second biasing signal to bias the preamplifier, and adjusts the second gain by adjusting the second biasing signal based on the first signal. The adjusted second gain compensates a change in the first gain due to the change in the temperature.

摘要翻译： 一种系统包括功率放大器，前置放大器，第一温度传感器和偏置发生器。 功率放大器具有第一增益，其是功率放大器的温度的函数。 前置放大器具有第二增益，放大输入信号，并将放大的信号输出到功率放大器。 第一温度传感器感测温度并产生第一信号。 偏置发生器产生第一偏置信号以偏置功率放大器，产生第二偏置信号以偏置前置放大器，并且通过基于第一信号调整第二偏置信号来调整第二增益。 调整后的第二增益补偿了由于温度变化引起的第一增益的变化。

公开(公告)号：US20110116208A1

公开(公告)日：2011-05-19

申请号：US12943234

申请日：2010-11-10

申请人： David M. Signoff ,  Wayne A. Loeb

发明人： David M. Signoff ,  Wayne A. Loeb

IPC分类号： H01G4/002

CPC分类号： H01G4/228 ,  H01G4/002

摘要： In one embodiment, an apparatus includes a first reference voltage coupled to a first metal layer and a second reference voltage coupled to a second metal layer. A first finger type in the plurality of fingers is coupled to the first metal layer at a first area and coupled to the first metal layer and the second metal layer at a second area. A second finger type in the plurality of fingers is coupled to the second metal layer at the first area and coupled to the first metal layer and the second metal layer at the second area. Also, the first finger type and the second finger type alternately positioned next to each other.

摘要翻译： 在一个实施例中，装置包括耦合到第一金属层的第一参考电压和耦合到第二金属层的第二参考电压。 多个指状物中的第一手指类型在第一区域处耦合到第一金属层，并且在第二区域处耦合到第一金属层和第二金属层。 多个指状物中的第二手指类型在第一区域处耦合到第二金属层，并且在第二区域处耦合到第一金属层和第二金属层。 此外，第一手指型和第二手指型彼此交替地定位。

公开(公告)号：US08988852B2

公开(公告)日：2015-03-24

申请号：US12943234

申请日：2010-11-10

申请人： David M. Signoff ,  Wayne A. Loeb

发明人： David M. Signoff ,  Wayne A. Loeb

IPC分类号： H01G4/005 ,  H01G4/228 ,  H01G4/002

CPC分类号： H01G4/228 ,  H01G4/002

摘要： In one embodiment, an apparatus includes a first reference voltage coupled to a first metal layer and a second reference voltage coupled to a second metal layer. A first finger type in the plurality of fingers is coupled to the first metal layer at a first area and coupled to the first metal layer and the second metal layer at a second area. A second finger type in the plurality of fingers is coupled to the second metal layer at the first area and coupled to the first metal layer and the second metal layer at the second area. Also, the first finger type and the second finger type alternately positioned next to each other.

摘要翻译： 在一个实施例中，装置包括耦合到第一金属层的第一参考电压和耦合到第二金属层的第二参考电压。 多个指状物中的第一手指类型在第一区域处耦合到第一金属层，并且在第二区域处耦合到第一金属层和第二金属层。 多个指状物中的第二手指类型在第一区域处耦合到第二金属层，并且在第二区域处耦合到第一金属层和第二金属层。 此外，第一手指型和第二手指型彼此交替地定位。

公开(公告)号：US08599962B1

公开(公告)日：2013-12-03

申请号：US13170791

申请日：2011-06-28

申请人： Wayne A. Loeb ,  David M. Signoff

发明人： Wayne A. Loeb ,  David M. Signoff

IPC分类号： H04K1/02 ,  H04B1/04

CPC分类号： H03F1/3241 ,  H03F1/3247 ,  H04B1/40

摘要： Apparatus having corresponding methods and non-transitory computer-readable media comprise: a transmitter configured to transmit a signal according to a gain setting, wherein the signal represents a first digital signal; a receiver configured to receive the signal transmitted by the transmitter, and produce a second digital signal based on the signal received by the receiver; a measurement module configured to produce a digital indication of a linearity of the transmitter based on the second digital signal; and a gain setting module configured to control the gain setting in accordance with the digital indication of the linearity of the transmitter.

摘要翻译： 具有相应方法和非暂时性计算机可读介质的装置包括：发射机，被配置为根据增益设置传输信号，其中所述信号表示第一数字信号; 接收器，被配置为接收由发射机发送的信号，并且基于由接收机接收的信号产生第二数字信号; 测量模块，被配置为基于所述第二数字信号产生所述发射机的线性度的数字指示; 以及增益设定模块，被配置为根据所述发射机的线性度的数字指示来控制所述增益设置。

公开(公告)号：US08766723B1

公开(公告)日：2014-07-01

申请号：US13439130

申请日：2012-04-04

申请人： Wayne A. Loeb ,  David M. Signoff

发明人： Wayne A. Loeb ,  David M. Signoff

IPC分类号： H03F3/26

CPC分类号： H03F3/19 ,  H03F3/245 ,  H03F3/265 ,  H03F3/45475 ,  H03F3/68 ,  H03F2200/405 ,  H03F2200/537 ,  H03F2200/541 ,  H03F2203/45731

摘要： Methods and devices provide for power amplification in a push pull power amplifier. A circuit comprises an input stage, a power amplifier stage and an output stage. The input stage provides a plurality of control voltages based on a control current. The input stage may include a transformer with a primary side and two secondary sides. A power amplifier stage comprises an NMOS transistor and a PMOS transistor arranged in a push-pull configuration to generate a plurality of amplified signals. The transistors may be in a common gate arrangement. The output stage combines the amplified signals and generates an output voltage. The output stage may include a transformer with two primary sides and a secondary side.

摘要翻译： 方法和装置在推挽功率放大器中提供功率放大。 电路包括输入级，功率放大级和输出级。 输入级基于控制电流提供多个控制电压。 输入级可以包括具有初级侧和两个次级侧的变压器。 功率放大器级包括以推挽配置布置的NMOS晶体管和PMOS晶体管，以产生多个放大信号。 晶体管可以是共同的栅极布置。 输出级组合放大的信号并产生输出电压。 输出级可以包括具有两个初级侧和次级侧的变压器。

公开(公告)号：US08362826B1

公开(公告)日：2013-01-29

申请号：US13462968

申请日：2012-05-03

申请人： David M. Signoff ,  Wayne A. Loeb

发明人： David M. Signoff ,  Wayne A. Loeb

IPC分类号： G05F1/10

CPC分类号： H03F1/30 ,  H03F3/195 ,  H03F3/24 ,  H03F3/3001 ,  H03F3/45475 ,  H03F2200/294 ,  H03F2200/411 ,  H03F2200/447 ,  H03F2200/555

摘要： An amplifier biasing circuit that reduces gain variation in short channel amplifiers, an amplifier biasing circuit that produces a constant Gm biasing signal for short channel amplifiers, and a multistage amplifier that advantageously incorporates embodiment of both types of amplifier biasing circuits are described. Both amplifier biasing circuit approaches use an operational amplifier to equalize internal bias circuit voltages. The constant Gm biasing circuit produces a Gm of 1/R, where R is the value of a trim resistor value. The biasing circuit that reduces gain variation produces a Gm of approximately 1/R, where R is the value of a trim resistor value, however, the biasing circuit is configurable to adjust the bias circuit Gm to mitigate the impact of a wide range of circuit specific characteristics and a wide range of changes in the operational environment in which the circuit can used, such as changes in temperature.

摘要翻译： 描述了减少短通道放大器的增益变化的放大器偏置电路，为短通道放大器产生恒定的Gm偏置信号的放大器偏置电路以及有利地结合两种类型的放大器偏置电路的实施例的多级放大器。 两个放大器偏置电路方法都使用运算放大器来均衡内部偏置电路电压。 恒定Gm偏置电路产生1 / R的Gm，其中R是微调电阻值的值。 降低增益变化的偏置电路产生大约1 / R的Gm，其中R是调整电阻值的值，然而，偏置电路可配置为调整偏置电路Gm以减轻宽范围电路的影响 特定的特性和电路可以使用的操作环境的变化范围，例如温度变化。

公开(公告)号：US08174307B1

公开(公告)日：2012-05-08

申请号：US13193998

申请日：2011-07-29

申请人： David M. Signoff ,  Wayne A. Loeb

发明人： David M. Signoff ,  Wayne A. Loeb

IPC分类号： G05F1/10

CPC分类号： H03F1/30 ,  H03F3/195 ,  H03F3/24 ,  H03F3/3001 ,  H03F3/45475 ,  H03F2200/294 ,  H03F2200/411 ,  H03F2200/447 ,  H03F2200/555

摘要： An amplifier biasing circuit that reduces gain variation in short channel amplifiers, an amplifier biasing circuit that produces a constant Gm biasing signal for short channel amplifiers, and a multistage amplifier that advantageously incorporates embodiment of both types of amplifier biasing circuits are described. Both amplifier biasing circuit approaches use an operational amplifier to equalize internal bias circuit voltages. The constant Gm biasing circuit produces a Gm of 1/R, where R is the value of a trim resistor value. The biasing circuit that reduces gain variation produces a Gm of approximately 1/R, where R is the value of a trim resistor value, however, the biasing circuit is configurable to adjust the bias circuit Gm to mitigate the impact of a wide range of circuit specific characteristics and a wide range of changes in the operational environment in which the circuit can used, such as changes in temperature.

摘要翻译： 描述了减少短通道放大器的增益变化的放大器偏置电路，为短通道放大器产生恒定的Gm偏置信号的放大器偏置电路以及有利地结合两种类型的放大器偏置电路的实施例的多级放大器。 两个放大器偏置电路方法都使用运算放大器来均衡内部偏置电路电压。 恒定Gm偏置电路产生1 / R的Gm，其中R是微调电阻值的值。 降低增益变化的偏置电路产生大约1 / R的Gm，其中R是调整电阻值的值，然而，偏置电路可配置为调整偏置电路Gm以减轻宽范围电路的影响 特定的特性和电路可以使用的操作环境的变化范围，例如温度变化。

公开(公告)号：US20110273261A1

公开(公告)日：2011-11-10

申请号：US13099622

申请日：2011-05-03

申请人： David M. Signoff ,  Wayne A. Loeb

发明人： David M. Signoff ,  Wayne A. Loeb

IPC分类号： H01F27/36

CPC分类号： H01F27/367

摘要： In one embodiment, an apparatus includes an inductor and an electrically conductive structure surrounding the inductor. The electrically conductive structure conducts a current when a first magnetic field passes through the electrically conductive structure. The current creates a second magnetic field opposing the first magnetic field.

摘要翻译： 在一个实施例中，装置包括电感器和围绕电感器的导电结构。 当第一磁场通过导电结构时，导电结构传导电流。 电流产生与第一磁场相反的第二磁场。