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1.发明授权RF power detection circuit with insensitivity to process, temperature and load impedance variation 有权RF功率检测电路对过程不敏感，温度和负载阻抗变化公开(公告)号：US08994362B2
公开(公告)日：2015-03-31
申请号：US13713328
申请日：2012-12-13
Applicant: Marvell World Trade Ltd.
Inventor： Renaldi Winoto , David M. Signoff
CPC classification number: G06G7/163 , G01R17/16 , G01R21/00 , G06G7/16 , H03D7/1441 , H03D7/1458 , H03D7/1466 , H03D2200/0043
Abstract: A circuit includes a multiplier circuit including a mixer configured to multiply a first differential input signal and a second differential input signal. The mixer includes a plurality of transistors including control terminals. The control terminals of the plurality of transistors receive a bias signal and the first differential input signal. A bias circuit is configured to generate the bias signal. The bias signal generated by the bias circuit is based on a voltage threshold of one of the plurality of transistors and a product of constant reference current and a bias resistance.
Abstract translation: 电路包括乘法器电路，该乘法器电路包括被配置为将第一差分输入信号和第二差分输入信号相乘的混频器。 混频器包括多个包括控制端的晶体管。 多个晶体管的控制端子接收偏置信号和第一差分输入信号。 偏置电路被配置为产生偏置信号。 由偏置电路产生的偏置信号基于多个晶体管之一的电压阈值和恒定参考电流与偏置电阻的乘积。
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公开(公告)号：US08823456B2
公开(公告)日：2014-09-02
申请号：US13893867
申请日：2013-05-14
Applicant: Marvell World Trade Ltd.
Inventor： David M. Signoff , Wayne A. Loeb , Ming He
CPC classification number: H03F1/30 , H03F2200/447 , H03F2200/468 , H03G3/3042
Abstract: A system including a power amplifier having a first gain, a preamplifier having a second gain, a first temperature sensor configured to sense the temperature of the power amplifier, and a bias generator. The first gain is a function of a temperature of the power amplifier. The preamplifier receives an input signal, amplifies the input signal according to the second gain, and outputs an amplified signal to the power amplifier. The bias generator generates a biasing signal to bias the preamplifier and adjusts the second gain of the preamplifier by adjusting the biasing signal based on the temperature of the power amplifier and an ambient temperature. The adjusted second gain of the preamplifier compensates a change in the first gain of the power amplifier due to a change in the temperature of the power amplifier.
Abstract translation: 一种包括具有第一增益的功率放大器，具有第二增益的前置放大器，被配置为感测功率放大器的温度的第一温度传感器和偏置发生器的系统。 第一增益是功率放大器的温度的函数。 前置放大器接收输入信号，根据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。 偏置发生器产生偏置信号以偏置前置放大器并且通过基于功率放大器的温度和环境温度调整偏置信号来调节前置放大器的第二增益。 前置放大器的调整后的第二增益由于功率放大器的温度变化而补偿功率放大器的第一增益的变化。
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3.发明授权Transformer circuits having transformers with figure eight and double figure eight nested structures 有权具有变压器的变压器电路具有图8和双数字8嵌套结构公开(公告)号：US09312060B2
公开(公告)日：2016-04-12
申请号：US14028835
申请日：2013-09-17
Applicant: Marvell World Trade Ltd.
Inventor： Philip Godoy , David M. Signoff , Ming He , Li Lin
CPC classification number: H01F27/006 , H01F27/2804 , H01F30/08 , H01F2027/2809
Abstract: A transformer includes a first loops and second loops. The first loops include a first set of input terminals. The first loops include at least three loops that are conductively coupled to each other in series by first crossovers. The second loops include a first set of output terminals. The second loops include at least three loops that are conductively coupled to each other in series by second crossovers. Each of the second conductive loops is inductively coupled to and nested within a respective one of the first conductive loops.
Abstract translation: 变压器包括第一环和第二环。 第一环路包括第一组输入端子。 第一环包括至少三个环，其通过第一交叉串联地相互导电地耦合。 第二环路包括第一组输出端子。 第二环路包括至少三个环路，其通过第二交叉串联地彼此导电耦合。 每个第二导电回路感应耦合到并嵌套在相应的一个第一导电回路中。
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4.发明授权Method and apparatus for detecting an output power of a radio frequency transmitter using a multiplier circuit 有权用于使用乘法器电路检测射频发射机的输出功率的方法和装置公开(公告)号：US09292716B2
公开(公告)日：2016-03-22
申请号：US14669418
申请日：2015-03-26
Applicant: Marvell World Trade Ltd.
Inventor： Renaldi Winoto , David M. Signoff
CPC classification number: G06G7/163 , G01R17/16 , G01R21/00 , G06G7/16 , H03D7/1441 , H03D7/1458 , H03D7/1466 , H03D2200/0043
Abstract: A power detection circuit configured to detect an output power of a radio frequency transmitter. The power detection circuit includes a multiplier circuit configured to multiply a first differential input signal and a second differential input signal. The first differential input signal corresponds to a radio frequency signal to be amplified by the radio frequency transmitter. The second differential signal corresponds to an output signal as amplified by an amplifier of the radio frequency transmitter. A bias circuit is configured to generate a bias signal. A differential amplifier is configured to generate, based on the bias signal and the first differential signal and the second differential signal as multiplied by the multiplier circuit, an indication of the output power of the amplifier of the radio frequency transmitter.
Abstract translation: 一种功率检测电路，被配置为检测射频发射机的输出功率。 功率检测电路包括乘法器电路，其被配置为将第一差分输入信号和第二差分输入信号相乘。 第一差分输入信号对应于由射频发射机放大的射频信号。 第二差分信号对应于由射频发射机的放大器放大的输出信号。 偏置电路被配置为产生偏置信号。 差分放大器被配置为基于偏置信号和乘以乘法器电路的第一差分信号和第二差分信号来产生射频发射器的放大器的输出功率的指示。
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公开(公告)号：US08957733B2
公开(公告)日：2015-02-17
申请号：US13660755
申请日：2012-10-25
Applicant: Marvell World Trade Ltd.
Inventor： David M. Signoff , Shu-Hsien Liao , Ming He , Wayne A. Loeb
CPC classification number: H03F1/56 , H03F1/0277 , H03F1/22 , H03F3/72
Abstract: In accordance with an embodiment of the disclosure, systems and methods are provided for multi-modal power amplification. In certain implementations, an adjustable power amplifier amplifies an input signal, and the amount of amplification is varied based on the input signal. A variable impedance unit receives an amplified input signal, and the amount of load impedance at the variable impedance unit is varied based on the input signal.
Abstract translation: 根据本公开的实施例，提供了用于多模式功率放大的系统和方法。 在某些实施方案中，可调功率放大器放大输入信号，并且放大量基于输入信号而变化。 可变阻抗单元接收放大的输入信号，并且可变阻抗单元处的负载阻抗量基于输入信号而变化。
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Patent Agency Ranking
6.发明申请RF POWER DETECTION CIRCUIT WITH INSENSITIVITY TO PROCESS, TEMPERATURE AND LOAD IMPEDANCE VARIATION 有权具有对过程，温度和负载阻抗变化的敏感性的RF功率检测电路公开(公告)号：US20130154615A1
公开(公告)日：2013-06-20
申请号：US13713328
申请日：2012-12-13
Applicant: Marvell World Trade Ltd.
Inventor： Renaldi Winoto , David M. Signoff
CPC classification number: G06G7/163 , G01R17/16 , G01R21/00 , G06G7/16 , H03D7/1441 , H03D7/1458 , H03D7/1466 , H03D2200/0043
Abstract: A circuit includes a multiplier circuit including a mixer configured to multiply a first differential input signal and a second differential input signal. The mixer includes a plurality of transistors including control terminals. The control terminals of the plurality of transistors receive a bias signal and the first differential input signal. A bias circuit is configured to generate the bias signal. The bias signal generated by the bias circuit is based on a voltage threshold of one of the plurality of transistors and a product of constant reference current and a bias resistance.
Abstract translation: 电路包括乘法器电路，该乘法器电路包括被配置为将第一差分输入信号和第二差分输入信号相乘的混频器。 混频器包括多个包括控制端的晶体管。 多个晶体管的控制端子接收偏置信号和第一差分输入信号。 偏置电路被配置为产生偏置信号。 由偏置电路产生的偏置信号基于多个晶体管之一的电压阈值和恒定参考电流与偏置电阻的乘积。
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公开(公告)号：US09417641B2
公开(公告)日：2016-08-16
申请号：US14532816
申请日：2014-11-04
Applicant: Marvell World Trade, Ltd.
Inventor： David M. Signoff , Ming He , Wayne A. Loeb
CPC classification number: H03F3/245 , G05F1/46 , H03F1/301 , H03F1/308 , H03F3/195 , H03F3/265 , H03F3/505 , H03F2200/24 , H03F2200/451 , H03F2200/453 , H03F2200/534 , H03F2200/555 , H03F2200/69 , H03H7/0107
Abstract: A circuit includes a bias circuit for a biased transistor. The bias circuit includes a master-slave source follower circuit, a reference transistor, and a bias circuit voltage output coupled to the biased transistor and configured to provide a bias voltage. The reference transistor has a transconductance substantially identical to a transconductance of the biased transistor. A signal ground circuit may be coupled between the biased transistor and one or more components of the bias circuit that do not generate significant return currents to a power supply ground. A method includes generating a current in a reference transistor according to a first voltage generated using a master source follower circuit, generating a second voltage substantially identical to the first voltage using a slave source follower circuit, and providing the second voltage to a biased transistor. The reference transistor has a transconductance substantially identical to a transconductance of the biased transistor.
Abstract translation: 电路包括用于偏置晶体管的偏置电路。 偏置电路包括主从源极跟随器电路，参考晶体管和耦合到偏置晶体管并被配置为提供偏置电压的偏置电路电压输出。 参考晶体管具有与偏置晶体管的跨导基本相同的跨导。 信号接地电路可以耦合在偏置晶体管和偏置电路的一个或多个组件之间，其不产生对电源接地的大的返回电流。 一种方法包括根据使用主源跟随器电路产生的第一电压在参考晶体管中产生电流，使用从源跟随器电路产生与第一电压基本相同的第二电压，以及将第二电压提供给偏置晶体管。 参考晶体管具有与偏置晶体管的跨导基本相同的跨导。
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公开(公告)号：US20130249636A1
公开(公告)日：2013-09-26
申请号：US13893867
申请日：2013-05-14
Applicant: Marvell World Trade Ltd.
Inventor： David M. Signoff , Wayne A. Loeb , Ming He
IPC: H03F1/30
CPC classification number: H03F1/30 , H03F2200/447 , H03F2200/468 , H03G3/3042
Abstract: A system including a power amplifier having a first gain, a preamplifier having a second gain, a first temperature sensor configured to sense the temperature of the power amplifier, and a bias generator. The first gain is a function of a temperature of the power amplifier. The preamplifier receives an input signal, amplifies the input signal according to the second gain, and outputs an amplified signal to the power amplifier. The bias generator generates a biasing signal to bias the preamplifier and adjusts the second gain of the preamplifier by adjusting the biasing signal based on the temperature of the power amplifier and an ambient temperature. The adjusted second gain of the preamplifier compensates a change in the first gain of the power amplifier due to a change in the temperature of the power amplifier.
Abstract translation: 一种包括具有第一增益的功率放大器，具有第二增益的前置放大器，被配置为感测功率放大器的温度的第一温度传感器和偏置发生器的系统。 第一增益是功率放大器的温度的函数。 前置放大器接收输入信号，根据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。 偏置发生器产生偏置信号以偏置前置放大器并且通过基于功率放大器的温度和环境温度调整偏置信号来调节前置放大器的第二增益。 前置放大器的调整后的第二增益由于功率放大器的温度变化而补偿功率放大器的第一增益的变化。
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公开(公告)号：US09590566B2
公开(公告)日：2017-03-07
申请号：US14523402
申请日：2014-10-24
Applicant: Marvell World Trade Ltd.
Inventor： David M. Signoff , Renaldi Winoto
CPC classification number: H03F1/3241 , H03F1/0233 , H03F1/3282 , H03F3/245 , H03F2201/3215 , H03F2201/3224
Abstract: An apparatus comprises an amplifier and a pre-distortion circuit coupled to an input of the amplifier. A saturation value of an input signal corresponds to a maximum output power of an output signal of the amplifier. An input target value of the input signal is determined according to the saturation value. The input target value is determined by subtracting an offset from the saturation value or by multiplying a ratio by the saturation value. An average value or an RMS value of the input signal is controlled to be substantially equal to the input target value. A method comprises determining an input target value according to a saturation value, and controlling an input signal according to the input target value.
Abstract translation: 一种装置包括放大器和耦合到放大器的输入的预失真电路。 输入信号的饱和值对应于放大器的输出信号的最大输出功率。 根据饱和值确定输入信号的输入目标值。 输入目标值通过从饱和值中减去偏移量或将比值乘以饱和值来确定。 输入信号的平均值或RMS值被控制为基本上等于输入目标值。 一种方法包括根据饱和度值确定输入目标值，并根据输入的目标值来控制输入信号。
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公开(公告)号：US09705454B2
公开(公告)日：2017-07-11
申请号：US15207362
申请日：2016-07-11
Applicant: Marvell World Trade, Ltd.
Inventor： David M. Signoff , Ming He , Wayne A. Loeb
CPC classification number: H03F3/245 , G05F1/46 , H03F1/301 , H03F1/308 , H03F3/195 , H03F3/265 , H03F3/505 , H03F2200/24 , H03F2200/451 , H03F2200/453 , H03F2200/534 , H03F2200/555 , H03F2200/69 , H03H7/0107
Abstract: A circuit includes a bias circuit for a biased transistor. The bias circuit includes a master-slave source follower circuit, a reference transistor, and a bias circuit voltage output coupled to the biased transistor and configured to provide a bias voltage. The reference transistor has a transconductance substantially identical to a transconductance of the biased transistor. A signal ground circuit may be coupled between the biased transistor and one or more components of the bias circuit that do not generate significant return currents to a power supply ground. A method includes generating a current in a reference transistor according to a first voltage generated using a master source follower circuit, generating a second voltage substantially identical to the first voltage using a slave source follower circuit, and providing the second voltage to a biased transistor. The reference transistor has a transconductance substantially identical to a transconductance of the biased transistor.
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