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    ADAPTIVE FILTER CIRCUIT FOR SAMPLING A REFLECTED VOLTAGE OF TRANSFORMER IN A POWER CONVERTER AND METHOD THEREOF
    31.
    发明申请
    ADAPTIVE FILTER CIRCUIT FOR SAMPLING A REFLECTED VOLTAGE OF TRANSFORMER IN A POWER CONVERTER AND METHOD THEREOF 有权
    用于在功率转换器中采集变压器反射电压的自适应滤波电路及其方法

    公开(公告)号：US20120212287A1

    公开(公告)日：2012-08-23

    申请号：US13336141

    申请日：2011-12-23

    Applicant: Ta-Yung YANG ,  Li Lin ,  Jung-Sheng Chen ,  Chih-Hsien Hsieh ,  Yue-Hong Tang

    Inventor： Ta-Yung YANG ,  Li Lin ,  Jung-Sheng Chen ,  Chih-Hsien Hsieh ,  Yue-Hong Tang

    IPC: H03B1/00

    CPC classification number: H02M1/34 ,  H02M2001/344

    Abstract: An adaptive filter circuit for sampling a reflected voltage of a transformer of a power converter includes a first switch for receiving the reflected voltage, a resistor having a first terminal and a second terminal, the first terminal of the resistor being coupled to the first switch, a capacitor coupled to the second terminal of the resistor for holding the reflected voltage, and a second switch coupled to the resistor in parallel, wherein the resistor and the capacitor develop a filter for sampling the reflected voltage which is sampled without filtering by the filter in a first period during a disable period of a switching signal and also sampled with filtering by the filter in a second period during the disable period of the switching signal.

    Abstract translation: 用于对功率转换器的变压器的反射电压进行采样的自适应滤波器电路包括用于接收反射电压的第一开关，具有第一端子和第二端子的电阻器，电阻器的第一端子耦合到第一开关， 耦合到所述电阻器的所述第二端子以保持所述反射电压的电容器，以及并联耦合到所述电阻器的第二开关，其中所述电阻器和所述电容器形成滤波器，用于对所述滤波器进行采样而不被所述滤波器滤波 在开关信号的禁止期间内的第一期间，并且在开关信号的禁止期间内，在第二期间通过滤波器进行滤波而进行采样。

    SINGLE-STAGE PFC CONVERTER WITH CONSTANT VOLTAGE AND CONSTANT CURRENT
    32.
    发明申请
    SINGLE-STAGE PFC CONVERTER WITH CONSTANT VOLTAGE AND CONSTANT CURRENT 有权
    具有恒定电压和恒定电流的单级PFC转换器

    公开(公告)号：US20120170330A1

    公开(公告)日：2012-07-05

    申请号：US13182291

    申请日：2011-07-13

    Applicant: Ta-Yung Yang ,  Jhih-Da Hsu ,  Ying-Chieh Su ,  Li Lin

    Inventor： Ta-Yung Yang ,  Jhih-Da Hsu ,  Ying-Chieh Su ,  Li Lin

    IPC: H02M7/04

    CPC classification number: H02M1/4258 ,  H02M2001/0006 ,  Y02B70/126

    Abstract: An exemplary embodiment of a power converter is provided. The power converter includes a transformer, a power device, a switching controller, and a capacitor. The power device is coupled to the transformer for switching the transformer to product output of the power converter. The switching controller receives a feedback signal for generating a switching signal coupled to drive the power device. An input circuit of the switching controller is coupled to the transformer to sample an input signal for generating the feedback signal, and the input signal is correlated to the output of the power converter. The capacitor is coupled to the switching controller to provide frequency compensation for a feedback loop of the power converter. Input of the power converter is without an electrolytic capacitor, and a maximum output current of the power converter is a constant current.

    Abstract translation: 提供了功率转换器的示例性实施例。 功率转换器包括变压器，功率器件，开关控制器和电容器。 功率器件耦合到变压器，用于将变压器切换到功率转换器的产品输出。 开关控制器接收用于产生耦合以驱动功率器件的开关信号的反馈信号。 开关控制器的输入电路耦合到变压器以对输入信号进行采样以产生反馈信号，并且输入信号与功率转换器的输出相关。 电容器耦合到开关控制器以为功率转换器的反馈回路提供频率补偿。 功率转换器的输入没有电解电容器，功率转换器的最大输出电流为恒定电流。

    ANALOG BIAS CONTROL FOR PACKET COMMUNICATION SYSTEMS
    34.
    发明申请
    ANALOG BIAS CONTROL FOR PACKET COMMUNICATION SYSTEMS 有权
    分组通信系统的模拟偏差控制

    公开(公告)号：US20110116399A1

    公开(公告)日：2011-05-19

    申请号：US12944031

    申请日：2010-11-11

    Applicant: Thomas B. Cho ,  Li Lin ,  Mao Yu ,  Atul Salhotra

    Inventor： Thomas B. Cho ,  Li Lin ,  Mao Yu ,  Atul Salhotra

    IPC: H04L12/26 ,  H04W24/00

    CPC classification number: H04L27/0002 ,  H03F1/0272 ,  H03G3/3068

    Abstract: Apparatus having corresponding methods and non-transitory computer-readable media comprise an amplifier configured to amplify signals according to a bias current, wherein the signals represent packets of data; a packet module configured to recover the packets of data from the signals amplified by the amplifier; and a control module configured to control the bias current according to one or more characteristics of the packets of data.

    Abstract translation: 具有相应方法和非瞬时计算机可读介质的装置包括放大器，其经配置以根据偏置电流放大信号，其中所述信号表示数据分组; 分组模块，被配置为从放大器放大的信号中恢复数据分组; 以及控制模块，被配置为根据所述数据分组的一个或多个特性来控制所述偏置电流。

    METHOD FOR MEASURING SANDABILITY OF COATING AND THE USE THEREOF
    35.
    发明申请
    METHOD FOR MEASURING SANDABILITY OF COATING AND THE USE THEREOF 失效
    测量涂层耐磨性及其用途的方法

    公开(公告)号：US20100170328A1

    公开(公告)日：2010-07-08

    申请号：US12663918

    申请日：2008-06-30

    Applicant: Li Lin ,  James Lamonte Adams

    Inventor： Li Lin ,  James Lamonte Adams

    IPC: G01N3/46

    CPC classification number: G01B9/00 ,  G01N3/567 ,  G01N5/04 ,  G01N2033/0096

    Abstract: The present invention is directed to a method for measuring sandability of a coating or an article. This invention is particularly directed to a method for measuring sandability of a coating or an article quantitatively by measuring weight loss of said coating or article after being sanded. This invention is also directed to a system for measuring sandability of a coating or an article using said method.

    Abstract translation: 本发明涉及一种用于测量涂层或制品的耐磨性的方法。 本发明特别涉及通过测量所述涂层或制品在磨砂后的重量损失来定量测量涂层或制品的耐磨性的方法。 本发明还涉及一种使用所述方法测量涂层或制品的砂性的系统。

    Radio frequency variable gain amplifier with linearity insensitive to gain
    38.
    发明授权
    Radio frequency variable gain amplifier with linearity insensitive to gain 有权
    射频可变增益放大器，对增益不敏感

    公开(公告)号：US06888411B2

    公开(公告)日：2005-05-03

    申请号：US10456417

    申请日：2003-06-06

    Applicant: Arya Reza Behzad ,  Li Lin

    Inventor： Arya Reza Behzad ,  Li Lin

    IPC: H03G1/00 ,  H03G3/00 ,  H03F3/04 ,  H03F3/45 ,  H03G3/10

    CPC classification number: H03F1/223 ,  H03F1/3205 ,  H03F3/19 ,  H03F3/45188 ,  H03F2200/366 ,  H03F2200/451 ,  H03G1/0088 ,  H03G3/001

    Abstract: A multi-stage, variable gain amplifier whose linearity is relatively insensitive to variations in gain control is disclosed. The amplifier includes a primary cascoded pair of transistors for producing a primary output current from an input voltage as a function of a primary cascode control voltage. The amplifier further includes one or more secondary cascoded pairs of transistors coupled to the primary cascoded pair of transistors for producing one or more secondary output currents from the input voltage as a function of one or more secondary cascode control voltages. The output current of the RF circuit is a sum of the primary output current and the one or more secondary output currents

    Abstract translation: 公开了一种多级可变增益放大器，其线性对增益控制的变化相对不敏感。 放大器包括用于从作为主级共源共栅控制电压的函数的输入电压产生初级输出电流的一级级联的晶体管对。 放大器还包括耦合到初级级联的晶体管对的一个或多个次级级联的晶体管对，用于从作为一个或多个次级共源共栅控制电压的函数的输入电压产生一个或多个次级输出电流。 RF电路的输出电流是初级输出电流和一个或多个次级输出电流之和

    Switching controller for flyback power converters without input capacitor
    39.
    发明授权
    Switching controller for flyback power converters without input capacitor 有权
    用于没有输入电容器的反激式电源转换器的开关控制器

    公开(公告)号：US09007786B2

    公开(公告)日：2015-04-14

    申请号：US13348963

    申请日：2012-01-12

    Applicant: Ta-Yung Yang ,  Li Lin ,  Chao-Chih Lin

    Inventor： Ta-Yung Yang ,  Li Lin ,  Chao-Chih Lin

    IPC: H02M3/335 ,  H02M1/00

    CPC classification number: H02M3/33507 ,  H02M2001/0022

    Abstract: The present invention proposes a switching controller of a flyback power converter. The switching controller includes a switching circuit, a sample-and-hold circuit, a voltage detection circuit, an oscillation circuit, and a comparator. The voltage detection circuit generates a holding signal when a level of an input voltage of the flyback power converter is lower than a low-threshold. The oscillation circuit limits the maximum frequency of switching signal. The maximum frequency is increased in response to a decrement of a modulation signal. The modulation signal correlated with a level of the input voltage is used to generate a control signal when the level of the input voltage is lower than an ultra-low-threshold. The control signal is enabled to operate the flyback power converter in continuous current mode operation. Therefore, an input capacitor can be eliminated and manufacturing cost is saved.

    Abstract translation: 本发明提出了一种反激式功率转换器的开关控制器。 开关控制器包括开关电路，采样保持电路，电压检测电路，振荡电路和比较器。 当反激式功率转换器的输入电压的电平低于低阈值时，电压检测电路产生保持信号。 振荡电路限制开关信号的最大频率。 响应于调制信号的减少，最大频率增加。 当输入电压的电平低于超低阈值时，与输入电压的电平相关的调制信号用于产生控制信号。 控制信号使能在连续电流模式下操作反激式功率转换器。 因此，可以消除输入电容器并节省制造成本。

    Adaptive slope compensation programmable by input voltage of power converter
    40.
    发明授权
    Adaptive slope compensation programmable by input voltage of power converter 有权
    功率转换器输入电压可编程的自适应斜率补偿

    公开(公告)号：US08934266B2

    公开(公告)日：2015-01-13

    申请号：US13591207

    申请日：2012-08-21

    Applicant: Ta-Yung Yang ,  Li Lin ,  Yue-Hong Tang

    Inventor： Ta-Yung Yang ,  Li Lin ,  Yue-Hong Tang

    IPC: H02M3/335

    CPC classification number: H02M3/335 ,  H02M2001/0022 ,  H02M2001/0025

    Abstract: A method for controlling a power converter is provided. The method includes the following steps. A switching signal coupled to switch a transformer for regulating the output of the power converter is generated in accordance with a feedback signal and a ramp signal. The ramp signal is generated in accordance with a switching current signal and a slope compensation signal. The slope compensation signal is generated in response to an input voltage signal. The input voltage signal is generated in response to the level of the input voltage of the power converter. The feedback signal is generated in accordance with the output of the power converter, and the switching current signal is correlated with a switching current of the transformer.

    Abstract translation: 提供一种用于控制功率转换器的方法。 该方法包括以下步骤。 根据反馈信号和斜坡信号产生耦合以切换用于调节功率转换器的输出的变压器的开关信号。 斜坡信号根据开关电流信号和斜率补偿信号产生。 斜坡补偿信号是根据输入电压信号产生的。 响应于功率转换器的输入电压的电平而产生输入电压信号。 反馈信号根据功率转换器的输出产生，开关电流信号与变压器的开关电流相关。

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