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    Controller and controlling method for power converter
    2.
    发明授权
    Controller and controlling method for power converter 失效
    电源转换器的控制器和控制方法

    公开(公告)号：US08634212B2

    公开(公告)日：2014-01-21

    申请号：US13040601

    申请日：2011-03-04

    申请人： Chien-Fu Tang ,  Isaac Y. Chen ,  Jiun-Hung Pan

    发明人： Chien-Fu Tang ,  Isaac Y. Chen ,  Jiun-Hung Pan

    IPC分类号： H02M3/335

    CPC分类号： H02M3/33507 ,  H02M2001/0009

    摘要： A controller for a power converter is provided. The controller includes a sense current integrating circuit, a reference current integrating circuit and a drive signal generation circuit. The sense current integrating circuit performs an integrating operation to a sense current representative of a conduction current flowing through a power switch of the power converter and thereby outputs a first integrating result. The reference current integrating circuit performs another integrating operation to a reference current and thereby outputs a second integrating result. The drive signal generation circuit determines a switching period of the power switch according to a status of an output voltage of the power converter cooperative with a relative magnitude relationship between the first integrating result and the second integrating circuit. Furthermore, a controlling method for such power converter also is provided.

    摘要翻译： 提供一种用于功率转换器的控制器。 控制器包括感测电流积分电路，参考电流积分电路和驱动信号发生电路。 感测电流积分电路对表示流过功率转换器的电源开关的导通电流的感测电流进行积分运算，从而输出第一积分结果。 参考电流积分电路对参考电流进行另一个积分运算，从而输出第二积分结果。 驱动信号生成电路根据第一积分结果与第二积分电路之间的相对大小关系，根据功率转换器的输出电压的状态来决定电源开关的开关周期。 此外，还提供了一种用于这种功率转换器的控制方法。

    POWER REGULATOR WITH OVER CURRENT PROTECTION AND CONTROL CIRCUIT THEREOF AND METHOD OF OVER CURRENT PROTECTION
    3.
    发明申请
    POWER REGULATOR WITH OVER CURRENT PROTECTION AND CONTROL CIRCUIT THEREOF AND METHOD OF OVER CURRENT PROTECTION 审中-公开
    具有电流保护的电力调节器及其控制电路及其电流保护方法

    公开(公告)号：US20130070379A1

    公开(公告)日：2013-03-21

    申请号：US13239362

    申请日：2011-09-21

    申请人： Jiun-Hung Pan ,  Chien-Fu Tang ,  Isaac Y. Chen

    发明人： Jiun-Hung Pan ,  Chien-Fu Tang ,  Isaac Y. Chen

    IPC分类号： H02H3/093

    CPC分类号： H02H3/093 ,  H02H3/006

    摘要： The present invention discloses a power regulator with over current protection (OCP), a control circuit thereof, and a method of over current protection. The power regulator with OCP includes: a primary circuit, a transformer, and a secondary circuit. The power regulator receives AC power, and generates secondary current which is supplied to a load circuit. The primary circuit includes a control circuit which includes: a switch control circuit, a first comparator circuit, a sample and hold circuit, and a compensation circuit which is coupled to the sample and hold circuit. The compensation circuit adaptively adjusts a threshold level of the OCP according to a current sense signal, or controls a delay time of an over current detection signal to compensate an error of the OCP threshold level, which is caused by the AC power, such that the primary current may have a peak corresponding to a predetermined setting.

    摘要翻译： 本发明公开了一种具有过电流保护功能的调节器（OCP）及其控制电路及过流保护方法。 带有OCP的电源调节器包括：初级电路，变压器和次级电路。 功率调节器接收交流电力，产生供给负载电路的二次电流。 主电路包括控制电路，其包括：开关控制电路，第一比较器电路，采样保持电路和耦合到采样和保持电路的补偿电路。 补偿电路根据电流检测信号自适应地调整OCP的阈值电平，或者控制过电流检测信号的延迟时间，以补偿由AC电源引起的OCP阈值电平的误差，使得 初级电流可以具有对应于预定设置的峰值。

    SWITCHING POWER CONVERTING APPARATUS, SWITCHING CONTROLLER FOR THE SAME, AND METHOD OF CONTROLLING A BIPOLAR JUNCTION TRANSISTOR OF THE SAME
    5.
    发明申请
    SWITCHING POWER CONVERTING APPARATUS, SWITCHING CONTROLLER FOR THE SAME, AND METHOD OF CONTROLLING A BIPOLAR JUNCTION TRANSISTOR OF THE SAME 有权
    开关电源转换装置，其相互切换控制器及其控制双极性连接晶体管的方法

    公开(公告)号：US20140286057A1

    公开(公告)日：2014-09-25

    申请号：US13847795

    申请日：2013-03-20

    申请人： JYUN-CHE HO ,  Jung-Pei Cheng ,  Yu-Chang Chen ,  Jiun-Hung Pan ,  Yung-Chih Lai ,  Isaac Y. Chen ,  Chien-Fu Tang

    发明人： JYUN-CHE HO ,  Jung-Pei Cheng ,  Yu-Chang Chen ,  Jiun-Hung Pan ,  Yung-Chih Lai ,  Isaac Y. Chen ,  Chien-Fu Tang

    IPC分类号： H02M3/335

    CPC分类号： H02M3/33523 ,  H02M1/08 ,  H02M2001/0006 ,  H02M2001/0048 ,  Y02B70/1491

    摘要： A switching power converting apparatus includes a coil unit, a bipolar junction transistor (BJT) controlling power transfer through the coil unit, and a current sensing resistor sensing a current flowing through the BJT so as to produce a sensed voltage thereacross. A switching controller includes a current source supplying a first current, a current generating module generating, based on an input voltage associated with the sensed voltage, a second current, which is proportional to the current flowing through the BJT, a multiplexing module selecting one of the first and second currents as an output current, and a driving module outputting, based on the output current, a driving current, which is proportional to the output current, to the BJT to thereby conduct the BJT.

    摘要翻译： 开关电源转换装置包括线圈单元，控制通过线圈单元的功率传输的双极结型晶体管（BJT），以及检测流过BJT的电流的电流感测电阻器，以便产生感测到的电压。 开关控制器包括提供第一电流的电流源，电流产生模块，基于与检测到的电压相关联的输入电压，产生与流过BJT的电流成比例的第二电流;多路复用模块选择 作为输出电流的第一和第二电流，以及基于输出电流将与输出电流成比例的驱动电流输出到BJT从而进行BJT的驱动模块。

    MIXED MODE COMPENSATION CIRCUIT
    8.
    发明申请
    MIXED MODE COMPENSATION CIRCUIT 有权
    混合模式补偿电路

    公开(公告)号：US20140176102A1

    公开(公告)日：2014-06-26

    申请号：US14192431

    申请日：2014-02-27

    申请人： Chien-Fu Tang ,  Jiun-Hung Pan ,  Isaac Y. Chen

    发明人： Chien-Fu Tang ,  Jiun-Hung Pan ,  Isaac Y. Chen

    IPC分类号： G05F1/10

    CPC分类号： G05F1/10 ,  H02M3/157 ,  H02M2001/0025 ,  H03M1/38

    摘要： A mixed mode compensation circuit for a power converter generate a digital signal according to a reference signal and a feedback signal which is related to the output voltage of the power converter, convert the digital signal into a first analog signal, offset the first analog signal with a variable offset value to generate a second analog signal, and filter out high-frequency components of the second analog signal to generate a third analog signal for stable output voltage of the power converter. The mixed mode compensation does not require large capacitors, and thus the circuit can be integrated into an integrated circuit.

    摘要翻译： 用于功率转换器的混合模式补偿电路根据参考信号和与功率转换器的输出电压相关的反馈信号产生数字信号，将数字信号转换为第一模拟信号，将第一模拟信号与 可变偏移值，用于产生第二模拟信号，并且滤除第二模拟信号的高频分量以产生用于稳定的功率转换器的输出电压的第三模拟信号。 混合模式补偿不需要大电容器，因此电路可以集成到集成电路中。

    On-chip mode-setting circuit and method for a chip
    9.
    发明授权
    On-chip mode-setting circuit and method for a chip 有权
    芯片上的片上模式设置电路和方法

    公开(公告)号：US07800425B2

    公开(公告)日：2010-09-21

    申请号：US11984560

    申请日：2007-11-20

    申请人： Chien-Fu Tang ,  Isaac Y. Chen

    发明人： Chien-Fu Tang ,  Isaac Y. Chen

    IPC分类号： H03K5/08

    CPC分类号： H03K19/1732

    摘要： An on-chip mode-setting circuit and method are provided for a chip having an output driver with an output terminal connected to a pin of the chip. The pin may be defined between two states from exterior of the chip. The on-chip mode-setting circuit includes an electronic element connected to a bias input of the output driver for producing a voltage when the pin is defined at one of the two states, and a voltage detector for monitoring the voltage to determine which one of the two states the pin is at, and producing a mode-setting signal accordingly.

    摘要翻译： 提供了具有输出驱动器的芯片的片上模式设置电路和方法，输出端连接到芯片的引脚。 引脚可以在芯片外部的两种状态之间定义。 片上模式设置电路包括连接到输出驱动器的偏置输入端的电子元件，用于当引脚被限定在两种状态中的一种状态时产生电压;以及电压检测器，用于监视电压以确定哪一个 引脚所在的两个状态，并相应地产生模式设置信号。

    Circuit and method for soft start of a switching regulator from a residual voltage
    10.
    发明授权
    Circuit and method for soft start of a switching regulator from a residual voltage 有权
    开关稳压器从残余电压软启动的电路和方法

    公开(公告)号：US07576522B2

    公开(公告)日：2009-08-18

    申请号：US12076798

    申请日：2008-03-24

    申请人： Isaac Y. Chen ,  Chien-Fu Tang

    发明人： Isaac Y. Chen ,  Chien-Fu Tang

    IPC分类号： G05F1/59

    CPC分类号： H02M3/1588 ,  H02M1/36 ,  Y02B70/1466 ,  Y10S323/901

    摘要： For soft start of a switching regulator, the output voltage of the switching regulator is fed back to be compared with a ramp signal, in order to trigger a comparison signal when the ramp signal rises up to reach the feedback signal, to enable the switching regulator such that the output voltage changes from a residual voltage toward a target value. The low side switch of the switching regulator is kept off for a period of time after the switching regulator is enabled, so as to prevent a reverse current during the soft start period.

    摘要翻译： 对于开关稳压器的软启动，开关稳压器的输出电压被反馈以与斜坡信号进行比较，以便在斜坡信号上升以触发反馈信号时触发比较信号，以使开关稳压器 使得输出电压从残余电压向目标值变化。 在开关稳压器使能之后，开关稳压器的低侧开关保持关闭一段时间，以便在软启动期间防止反向电流。