Closed-loop digital control system for a DC/DC converter
    11.
    发明授权
    Closed-loop digital control system for a DC/DC converter 有权
    用于DC / DC转换器的闭环数字控制系统

    公开(公告)号:US07679347B2

    公开(公告)日:2010-03-16

    申请号:US11710384

    申请日:2007-02-23

    IPC分类号: G05F1/40

    摘要: A control system comprises a DC/DC converter that includes first and second inductances, that receives a first DC voltage and that generates a second DC voltage. A control module selectively charges or discharges the first inductance while discharging or charging the second inductance during a first mode and one of charges both of the first and second inductances or discharges both of the first and second inductances during a second mode.

    摘要翻译: 控制系统包括DC / DC转换器,其包括第一和第二电感,其接收第一DC电压并产生第二DC电压。 在第一模式期间,控制模块选择性地对第一电感充电或放电,同时在第二模式期间对第一和第二电感进行充电或者对第一和第二电感进行放电。

    Input/output data rate synchronization using first in first out data buffers
    12.
    发明授权
    Input/output data rate synchronization using first in first out data buffers 有权
    使用先进先出的数据缓冲器进行输入/输出数据速率同步

    公开(公告)号:US07599456B1

    公开(公告)日:2009-10-06

    申请号:US11109988

    申请日:2005-04-20

    IPC分类号: H04L7/00

    摘要: An input/output data rate synchronization system includes a first data buffer that receives input data at a first rate, that temporarily stores the input data, and that outputs the input data at a second rate. A data processing module receives the input data from the first data buffer and outputs processed data at a third rate. A second data buffer receives the processed data from the data processing module at the third rate, temporarily stores the processed data, and outputs the processed data at a fourth rate. The data processing module temporarily stops receiving the input data and generating the processed data when the second data buffer exceeds a first predetermined capacity. The data processing module increases the second rate when the first data buffer exceeds a second predetermined capacity and decreases the second rate when a difference between the second and first rates is greater than a predetermined rate.

    摘要翻译: 输入/输出数据速率同步系统包括第一数据缓冲器,其以第一速率接收输入数据,临时存储输入数据,并以第二速率输出输入数据。 数据处理模块从第一数据缓冲器接收输入数据,并以第三速率输出处理后的数据。 第二数据缓冲器以第三速率从数据处理模块接收处理的数据,临时存储处理的数据,并以第四速率输出处理后的数据。 当第二数据缓冲器超过第一预定容量时,数据处理模块临时停止接收输入数据并产生处理数据。 当第一数据缓冲器超过第二预定容量时,数据处理模块增加第二速率,并且当第二速率和第一速率之间的差大于预定速率时,数据处理模块降低第二速率。

    Closed-loop digital control system for a DC/DC converter
    13.
    发明授权
    Closed-loop digital control system for a DC/DC converter 有权
    用于DC / DC转换器的闭环数字控制系统

    公开(公告)号:US07190152B2

    公开(公告)日:2007-03-13

    申请号:US10890491

    申请日:2004-07-13

    IPC分类号: G05F1/40

    摘要: A closed-loop control system for a DC/DC converter includes a DC/DC converter that receives a first DC voltage and that generates a second DC voltage. The DC/DC converter includes first and second inductances. A control module receives the second DC voltage and generates at least one control signal to one of charge or discharge the first and second inductances. The control module has first and second modes. During the first mode the control module alternately charges one of the first and second inductances and discharges the other of the first and second inductances. During the second mode the control module one of charges or discharges both of the first and second inductances. The control module initiates the second mode when a transient condition occurs in the DC/DC converter. The transient condition is based on one of the second DC voltage and current through an output capacitance in the DC/DC converter.

    摘要翻译: 用于DC / DC转换器的闭环控制系统包括接收第一DC电压并产生第二DC电压的DC / DC转换器。 DC / DC转换器包括第一和第二电感。 控制模块接收第二直流电压,并产生至少一个控制信号,以充电或放电第一和第二电感。 控制模块具有第一和第二模式。 在第一模式期间,控制模块交替地对第一和第二电感中的一个进行充电,并且对第一和第二电感中的另一个进行放电。 在第二模式期间,控制模块对第一和第二电感进行充电或放电。 当DC / DC转换器发生瞬变状态时,控制模块启动第二模式。 瞬态条件基于DC / DC转换器中通过输出电容的第二直流电压和电流之一。

    RF band pass filter with feedback control
    14.
    发明授权
    RF band pass filter with feedback control 有权
    具有反馈控制的RF带通滤波器

    公开(公告)号:US08831552B1

    公开(公告)日:2014-09-09

    申请号:US11265074

    申请日:2005-11-01

    申请人: Runsheng He

    发明人: Runsheng He

    IPC分类号: H04B1/16

    CPC分类号: H04B1/1638

    摘要: A wireless receiver comprises a band-pass filter module that includes an input for receiving a first pilot signal, an output that generates a first signal based on the first pilot signal, and a control input for adjusting a center frequency of the band-pass filter module. A control module determines the energy of the first signal, generates a control signal based on the energy, and communicates the control signal to the control input of the band-pass filter module.

    摘要翻译: 无线接收机包括带通滤波器模块,其包括用于接收第一导频信号的输入,基于第一导频信号产生第一信号的输出,以及用于调整带通滤波器的中心频率的控制输入 模块。 控制模块确定第一信号的能量,基于能量产生控制信号,并将控制信号传送到带通滤波器模块的控制输入端。

    Adaptive analog echo/next cancellation
    15.
    发明授权
    Adaptive analog echo/next cancellation 有权
    自适应模拟回波/下一个取消

    公开(公告)号:US08184802B1

    公开(公告)日:2012-05-22

    申请号:US12215956

    申请日:2008-07-01

    IPC分类号: H04M9/08

    CPC分类号: H04B3/32 H04B3/23

    摘要: An adaptive analog echo/near-end crosstalk (NEXT) cancellation system includes a bit slicer that receives a first analog receive signal and that generates a first error control signal. A digital signal processor (DSP) receives a digital receive signal and a digital transmit signal and generates second and third error control signals. A first summing module generates a fourth error control signal by summing the second and third error control signals. A selector outputs the first error control signal during a first mode and the fourth error control signal during a second mode. An echo/NEXT cancellation module communicates with the selector and generates an estimated echo/NEXT signal based on the first error control signal and an analog transmit signal during the first mode and based on the fourth error control signal and the analog transmit signal during the second mode.

    摘要翻译: 自适应模拟回波/近端串扰(NEXT)消除系统包括接收第一模拟接收信号并产生第一误差控制信号的位限幅器。 数字信号处理器(DSP)接收数字接收信号和数字发射信号,并产生第二和第三误差控制信号。 第一求和模块通过对第二和第三误差控制信号求和来产生第四误差控制信号。 A选择器在第一模式期间输出第一误差控制信号,在第二模式期间输出第四误差控制信号。 回波/ NEXT消除模块与选择器通信,并且在第一模式期间基于第一误差控制信号和模拟发射信号,并且在第二模式期间基于第四误差控制信号和模拟发射信号,产生估计回波/ NEXT信号 模式。

    Cable tester
    16.
    发明授权
    Cable tester 有权
    电缆测试仪

    公开(公告)号:US08179144B1

    公开(公告)日:2012-05-15

    申请号:US13023410

    申请日:2011-02-08

    IPC分类号: G01R31/11

    CPC分类号: H04L43/50 G01R31/11 H04L12/10

    摘要: A network device including a physical layer (PHY) device and an autonegotiation module. The PHY device is configured to interface with N cable pairs, where N is greater than 1. The PHY device includes a cable test module configured to diagnose a short circuit in one of the N cable pairs. The autonegotiation module is configured to i) selectively perform autonegotiation to establish a link with a link partner at one of a first link speed and a second link speed that is lower than the first link speed, and ii) select between the first link speed and the second link speed in response to the cable test module diagnosing the short circuit.

    摘要翻译: 一种包括物理层(PHY)设备和自动协商模块的网络设备。 PHY设备被配置为与N个大于1的N个电缆对接口。PHY设备包括被配置为诊断N个电缆对之一中的短路的电缆测试模块。 自动协商模块被配置为:i)选择性地执行自动协商以便以低于第一链路速度的第一链路速度和第二链路速度中的一个建立与链路伙伴的链路,以及ii)在第一链路速度和 响应于电缆测试模块诊断短路的第二链路速度。

    Channel equalization in receivers
    17.
    发明授权
    Channel equalization in receivers 有权
    接收机中的信道均衡

    公开(公告)号:US08059773B1

    公开(公告)日:2011-11-15

    申请号:US12916167

    申请日:2010-10-29

    申请人: Runsheng He Jing Fang

    发明人: Runsheng He Jing Fang

    IPC分类号: H04B1/10

    摘要: Apparatus and methods relating to channel equalization include a method including: generating a first output signal in a frequency domain based on a communications signal of a channel; determining a first channel response based on the first output signal and one or more pilot signals of the communications signal; generating a first equalized signal based on the first output signal and the first determined channel response; generating a first decision signal based on the first equalized signal; generating an output signal in a time domain based on the first decision signal; determining a second channel response based on the time domain output signal; generating a second output signal in the frequency domain based on the second channel response; generating a second equalized signal based on the first and second output signals and the time domain output signal; and generating a second decision signal based on the second equalized signal.

    摘要翻译: 与信道均衡相关的装置和方法包括:一种方法,包括:基于信道的通信信号产生频域中的第一输出信号; 基于所述第一输出信号和所述通信信号的一个或多个导频信号确定第一信道响应; 基于所述第一输出信号和所述第一确定的信道响应产生第一均衡信号; 基于所述第一均衡信号产生第一判定信号; 基于所述第一判定信号在时域中产生输出信号; 基于时域输出信号确定第二信道响应; 基于第二信道响应在频域中产生第二输出信号; 基于第一和第二输出信号和时域输出信号产生第二均衡信号; 以及基于所述第二均衡信号产生第二判定信号。

    Mixed mode digital control for switching regulator
    18.
    发明授权
    Mixed mode digital control for switching regulator 有权
    混合模式数字控制开关稳压器

    公开(公告)号:US07973524B1

    公开(公告)日:2011-07-05

    申请号:US12858549

    申请日:2010-08-18

    申请人: Runsheng He

    发明人: Runsheng He

    IPC分类号: G05F1/40

    摘要: A regulated power supply includes an inverter comprising an upper switch and a lower switch that are connected in series. A control module selectively controls the upper switch and the lower switch in one of a pulse width modulation (PWM) mode and a discrete control mode (DCM), receives a feedback signal from an output of the regulated power supply, and switches between the PWM mode and the DCM based on the feedback signal.

    摘要翻译: 稳压电源包括串联连接的上部开关和下部开关的逆变器。 控制模块以脉冲宽度调制(PWM)模式和离散控制模式(DCM)中的一种选择性地控制上部开关和下部开关,从稳压电源的输出接收反馈信号,并且在PWM 模式和DCM基于反馈信号。

    Adaptive control loop
    19.
    发明授权
    Adaptive control loop 有权
    自适应控制回路

    公开(公告)号:US07906949B1

    公开(公告)日:2011-03-15

    申请号:US12148078

    申请日:2008-04-16

    IPC分类号: G05F1/40 H02M7/10

    摘要: A duty cycle estimator comprises an error generator that compares an output of a switching regulator to a reference to generate an output error, wherein the switching regulator operates in accordance with a switching period. An accumulator determines an accumulated error of the output error over a time period of at least N times the switching period of the switching regulator, where N is an integer. An adjustment determiner adjusts a duty cycle for the switching regulator based on the accumulated error of the output error over the time period.

    摘要翻译: 占空比估计器包括误差发生器,其将开关稳压器的输出与参考值进行比较以产生输出误差,其中开关稳压器根据开关周期进行工作。 累加器在开关调节器的开关周期的至少N倍的时间周期内确定输出误差的累积误差,其中N是整数。 调整确定器根据在该时间段内的输出误差的累计误差来调节开关调节器的占空比。