公开(公告)号：US07400204B2

公开(公告)日：2008-07-15

申请号：US11168012

申请日：2005-06-28

申请人： Axel Thomsen ,  Ronald G. Spencer

发明人： Axel Thomsen ,  Ronald G. Spencer

IPC分类号： H03L7/00

CPC分类号： H03L7/0895 ,  H03D13/004 ,  H03L7/1976

摘要： A phase detector detects a phase difference between a first and second signal received by a phase detector. A charge is supplied by a charge pump circuit that corresponds to the phase difference using a phase difference to charge conversion that is substantially linear and nonzero in a phase error region that includes a phase error transition region around a phase error of zero having both negative and positive phase error values. Dual determinations, q1 and q2, offset from each other are made of an appropriate charge for a given phase error between the first and second signals. The charge pump supplies as the total charge pump output a charge value representing a combination of q1 and q2, thereby providing a phase error to charge conversion that is substantially linear in the phase error transition region around zero. A first and second output of the phase detector circuit respectively supplying UP and DOWN signals to the charge pump circuit are delayed and supplied as additional outputs of the phase detector circuit and used in generating the dual charge determinations q1 and q2.

摘要翻译： 相位检测器检测由相位检测器接收的第一和第二信号之间的相位差。 由相位差对应的电荷泵电路提供电荷，所述电荷泵电路使用在相位误差区域中基本为线性且非零的相位差的电荷转换，所述相位误差区域包括零​​相位误差为零的相位误差跃迁区域， 正相误差值。 对于第一和第二信号之间给定的相位误差，双重确定q1和q2彼此偏移由适当的电荷构成。 电荷泵作为总电荷泵输出表示q1和q2的组合的电荷值，从而在零相位误差过渡区域内提供基本为线性的电荷转换的相位误差。 分别向电荷泵电路提供UP和DOWN信号的相位检测器电路的第一和第二输出被延迟并作为相位检测器电路的附加输出提供，并用于产生双电荷确定q1和q2。

公开(公告)号：US08983416B1

公开(公告)日：2015-03-17

申请号：US12946625

申请日：2010-11-15

申请人： Ronald G. Spencer

发明人： Ronald G. Spencer

IPC分类号： H04B1/06 ,  H04B1/16

CPC分类号： H04B1/16 ,  H03G3/3052 ,  H03G3/3084

摘要： A system and method employ an arbiter-based automatic gain control (AGC) for managing a series of power adjustment circuits, such as amplifiers and/or attenuators. A central arbiter is employed for managing each stage of a series of power adjustment circuits, rather than each stage solely managing itself via a localized control loop. In one embodiment, a system comprises a series of gain stages each having at least one power adjustment circuit, such as at least one attenuator or amplifier. A power detector may be implemented to detect the power level of the output signal of each gain stage, and communicate information about the detected power levels for each stage to a central arbiter. Based at least in part on the received information, the arbiter controls each of the gain stages in a coordinated fashion.

摘要翻译： 系统和方法采用基于仲裁的自动增益控制（AGC）来管理诸如放大器和/或衰减器之类的一系列功率调节电路。 中央仲裁器用于管理一系列功率调节电路的每个阶段，而不是每个阶段通过局部控制回路独自管理自身。 在一个实施例中，系统包括一系列增益级，每个增益级具有至少一个功率调节电路，例如至少一个衰减器或放大器。 可以实现功率检测器以检测每个增益级的输出信号的功率电平，并且将关于每个级的检测到的功率电平的信息传送到中央仲裁器。 至少部分地基于接收到的信息，仲裁者以协调的方式控制每个增益阶段。