公开(公告)号：JP2010273360A

公开(公告)日：2010-12-02

申请号：JP2010152232

申请日：2010-07-02

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： BARNETT KENNETH ,  WALKER BRETT C ,  GARD KEVIN

IPC: H03G3/10 ,  H03F1/30 ,  H03G1/04 ,  H03G3/30 ,  H03G7/00 ,  H03G7/06 ,  H04B5/00

CPC classification number: H04B5/00 ,  H03F1/301 ,  H03G1/04 ,  H03G3/3036 ,  H03G3/3042 ,  H03G7/001

Abstract: PROBLEM TO BE SOLVED: To provide a radio frequency (RF) driver amplifier system and method that provides linear in decibel gain control.
SOLUTION: An RF driver amplifier system includes a linear transconductor receiving an input voltage and providing a controlled current on the basis of input voltage received, temperature compensation circuitry for varying power from the linear transconductor according to absolute temperature, an exponential current controller receiving power varied according to temperature and providing an exponential current in response, and an inductive degeneration compensator receiving exponential current and providing a control current to driver amplifier circuitry, thereby compensating for inductive degeneration due to at least one inductor in the driver amplifier circuitry. Control current passes from the inductive degeneration compensator to the driver amplifier circuitry.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供提供线性分贝增益控制的射频（RF）驱动放大器系统和方法。 解决方案：RF驱动放大器系统包括接收输入电压并基于接收的输入电压提供受控电流的线性跨导器，用于根据绝对温度从线性跨导器改变功率的温度补偿电路，指数电流控制器 接收功率根据温度变化并提供响应的指数电流，以及感应退化补偿器，其接收指数电流并向驱动器放大器电路提供控制电流，从而补偿由于驱动器放大器电路中的至少一个电感器引起的电感变性。 控制电流从感应退化补偿器传递到驱动器放大器电路。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：BR0316211A

公开(公告)日：2005-09-27

申请号：BR0316211

申请日：2003-11-12

Applicant: QUALCOMM INC

Inventor： BARNETT KENNETH ,  WALKER BRETT C ,  GARD KEVIN

IPC: H03F1/30 ,  H03G1/04 ,  H03G3/30 ,  H03G7/00 ,  H03G7/06 ,  H04B5/00

Abstract: A radio frequency (RF) driver amplifier system and method that provides linear in decibel gain control is provided. The RF driver amplifier system comprises a linear transconductor receiving an input voltage and providing a controlled current based on input voltage received, temperature compensation circuitry for varying current from the linear transconductor according to absolute temperature, an exponential current controller receiving current varied according to temperature and providing an exponential current in response, and an inductive degeneration compensator receiving exponential current and providing a control current to driver amplifier circuitry, thereby compensating for inductive degeneration due to at least one inductor in the driver amplifier circuitry. Control current passes from the inductive degeneration compensator to the driver amplifier circuitry. Output gain from the driver amplifier circuitry varies linearly in decibels with respect to the input voltage.

公开(公告)号：AU2003290822A1

公开(公告)日：2004-06-03

申请号：AU2003290822

申请日：2003-11-12

Applicant: QUALCOMM INC

Inventor： WALKER BRETT C ,  GARD KEVIN ,  BARNETT KENNETH

IPC: H03F1/30 ,  H03G1/04 ,  H03G3/30 ,  H03G7/00 ,  H03G7/06 ,  H04B5/00 ,  H04Q7/00

Abstract: A radio frequency (RF) driver amplifier system and method that provides linear in decibel gain control is provided. The RF driver amplifier system comprises a linear transconductor receiving an input voltage and providing a controlled current based on input voltage received, temperature compensation circuitry for varying current from the linear transconductor according to absolute temperature, an exponential current controller receiving current varied according to temperature and providing an exponential current in response, and an inductive degeneration compensator receiving exponential current and providing a control current to driver amplifier circuitry, thereby compensating for inductive degeneration due to at least one inductor in the driver amplifier circuitry. Control current passes from the inductive degeneration compensator to the driver amplifier circuitry. Output gain from the driver amplifier circuitry varies linearly in decibels with respect to the input voltage.

公开(公告)号：AU2003290822A8

公开(公告)日：2004-06-03

申请号：AU2003290822

申请日：2003-11-12

Applicant: QUALCOMM INC

Inventor： BARNETT KENNETH ,  WALKER BRETT C ,  GARD KEVIN

IPC: H03F1/30 ,  H03G1/04 ,  H03G3/30 ,  H03G7/00 ,  H03G7/06 ,  H04B5/00

Abstract: A radio frequency (RF) driver amplifier system and method that provides linear in decibel gain control is provided. The RF driver amplifier system comprises a linear transconductor receiving an input voltage and providing a controlled current based on input voltage received, temperature compensation circuitry for varying current from the linear transconductor according to absolute temperature, an exponential current controller receiving current varied according to temperature and providing an exponential current in response, and an inductive degeneration compensator receiving exponential current and providing a control current to driver amplifier circuitry, thereby compensating for inductive degeneration due to at least one inductor in the driver amplifier circuitry. Control current passes from the inductive degeneration compensator to the driver amplifier circuitry. Output gain from the driver amplifier circuitry varies linearly in decibels with respect to the input voltage.

公开(公告)号：AT554526T

公开(公告)日：2012-05-15

申请号：AT08743993

申请日：2008-03-18

Applicant: QUALCOMM INC

Inventor： MUTHALI HARISH ,  BARNETT KENNETH

IPC: H03F1/32 ,  H03F3/45

Abstract: The present patent application comprises a linear transconductor having at least one input and at least one output, comprising a differential amplifier having a plurality of transistors and a plurality of inputs, wherein a difference of input signals is amplified, a cascode circuit having a plurality of transistors, wherein the transistors are operably connected to the differential amplifier, wherein reverse isolation between an input and an output of the linear transconductor is improved by decoupling the input and the output of the linear transconductor by mounting at least one transistor of the plurality of transistors of the cascode circuit as a common-gate stacked on the at least one transistor of the differential amplifier, an active load having a plurality of transistors operably connected between the cascode circuit and supply voltage, and an auxiliary device operably connected to the connection between the active load, the cascode device and ground.

公开(公告)号：DE60330707D1

公开(公告)日：2010-02-04

申请号：DE60330707

申请日：2003-11-12

Applicant: QUALCOMM INC

Inventor： BARNETT KENNETH ,  WALKER BRETT C ,  GARD KEVIN

IPC: H03F1/30 ,  H03G1/04 ,  H03G3/30 ,  H03G7/00 ,  H03G7/06 ,  H04B5/00

Abstract: A radio frequency (RF) driver amplifier system and method that provides linear in decibel gain control is provided. The RF driver amplifier system comprises a linear transconductor receiving an input voltage and providing a controlled current based on input voltage received, temperature compensation circuitry for varying current from the linear transconductor according to absolute temperature, an exponential current controller receiving current varied according to temperature and providing an exponential current in response, and an inductive degeneration compensator receiving exponential current and providing a control current to driver amplifier circuitry, thereby compensating for inductive degeneration due to at least one inductor in the driver amplifier circuitry. Control current passes from the inductive degeneration compensator to the driver amplifier circuitry. Output gain from the driver amplifier circuitry varies linearly in decibels with respect to the input voltage.

公开(公告)号：AT453244T

公开(公告)日：2010-01-15

申请号：AT03783406

申请日：2003-11-12

Applicant: QUALCOMM INC

Inventor： BARNETT KENNETH ,  WALKER BRETT C ,  GARD KEVIN

IPC: H03G3/30 ,  H03F1/30 ,  H03G1/04 ,  H03G7/00 ,  H03G7/06 ,  H04B5/00

Abstract: A radio frequency (RF) driver amplifier system and method that provides linear in decibel gain control is provided. The RF driver amplifier system comprises a linear transconductor receiving an input voltage and providing a controlled current based on input voltage received, temperature compensation circuitry for varying current from the linear transconductor according to absolute temperature, an exponential current controller receiving current varied according to temperature and providing an exponential current in response, and an inductive degeneration compensator receiving exponential current and providing a control current to driver amplifier circuitry, thereby compensating for inductive degeneration due to at least one inductor in the driver amplifier circuitry. Control current passes from the inductive degeneration compensator to the driver amplifier circuitry. Output gain from the driver amplifier circuitry varies linearly in decibels with respect to the input voltage.

公开(公告)号：AU2003208912A1

公开(公告)日：2003-09-02

申请号：AU2003208912

申请日：2003-01-31

Applicant: QUALCOMM INC

Inventor： BARNETT KENNETH

IPC: H03G3/30 ,  H03H11/30 ,  H03F1/56

公开(公告)号：WO2010033855A2

公开(公告)日：2010-03-25

申请号：PCT/US2009057555

申请日：2009-09-18

Applicant: QUALCOMM INC ,  ZHANG KUN ,  BARNETT KENNETH

Inventor： ZHANG KUN ,  BARNETT KENNETH

IPC: H03K23/54

CPC classification number: H03K3/356121 ,  H03K5/1565 ,  H03K23/544

Abstract: A latch includes three circuits. The first circuit drives a first output (QB) to a first level when a first input (D) and a first clock phase (CK) are both low, to a second level when D and CK are both high, and provides high impedance (HI-Z) when different logic levels are applied to D and CK. The second circuit drives a second output (Q) to the first level when a third input (DB) and a complimentary clock phase (CKB) are both low, to the second level when DB and CKB are both high, and provides HI-Z when different logic levels are applied to DB and CKB. The third circuit maintains voltages of Q and QB when the first and second circuits provide HI-Z at Q and QB. Odd-number dividers constructed with such latches produce 50% duty cycle operation without restricting output pulse widths to integer multiples of input periods.

Abstract translation: 闩锁包括三个电路。 当D和CK都为高电平时，当第一输入（D）和第一时钟相位（CK）均为低电平时，第一电路将第一输出（QB）驱动到第一电平，并提供高阻抗（ 当对D和CK应用不同的逻辑电平时，HI-Z）。 当DB和CKB均为高电平时，第三输入（DB）和互补时钟相位（CKB）均为低电平时，第二电路将第二输出（Q）驱动到第一电平，并提供HI-Z 当DB和CKB应用不同的逻辑电平时。 当第一和第二电路在Q和QB提供HI-Z时，第三电路维持Q和QB的电压。 使用这种锁存器构造的奇数分频器可以产生50％的占空比运算，而不会将输出脉冲宽度限制为输入周期的整数倍。

公开(公告)号：WO2004045226A3

公开(公告)日：2004-10-07

申请号：PCT/US0336231

申请日：2003-11-12

Applicant: QUALCOMM INC

Inventor： BARNETT KENNETH ,  WALKER BRETT C ,  GARD KEVIN

IPC: H03F1/30 ,  H03G1/04 ,  H03G3/30 ,  H03G7/00 ,  H03G7/06 ,  H04B5/00

CPC classification number: H04B5/00 ,  H03F1/301 ,  H03G1/04 ,  H03G3/3036 ,  H03G3/3042 ,  H03G7/001

Abstract: A radio frequency (RF) driver amplifier system and method that provides linear in decibel gain control is provided. The RF driver amplifier system comprises a linear transconductor receiving an input voltage and providing a controlled current based on input voltage received, temperature compensation circuitry for varying current from the linear transconductor according to absolute temperature, an exponential current controller receiving current varied according to temperature and providing an exponential current in response, and an inductive degeneration compensator receiving exponential current and providing a control current to driver amplifier circuitry , thereby compensating for inductive degeneration due to at least one inductor in the driver amplifier circuitry . Control current passes from the inductive degeneration compensator to the driver amplifier circuitry . Output gain from the driver amplifier circuitry varies linearly in decibels with respect to the input voltage.

Abstract translation: 提供了提供线性分贝增益控制的射频（RF）驱动放大器系统和方法。 RF驱动放大器系统包括接收输入电压并基于接收的输入电压提供受控电流的线性跨导器，根据绝对温度从线性跨导器改变电流的温度补偿电路，接收根据温度变化的电流的指数电流控制器，以及 提供响应的指数电流，以及感应退化补偿器，其接收指数电流并向驱动器放大器电路提供控制电流，从而补偿由于驱动器放大器电路中的至少一个电感器导致的电感退化。 控制电流从感应退化补偿器传递到驱动器放大器电路。 驱动放大器电路的输出增益相对于输入电压以分贝线性变化。