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    Flyback power supply circuit with programmable function and control method thereof
    1.
    发明授权
    Flyback power supply circuit with programmable function and control method thereof 有权
    具有可编程功能的反激式电源电路及其控制方法

    公开(公告)号：US09362834B2

    公开(公告)日：2016-06-07

    申请号：US14739894

    申请日：2015-06-15

    申请人： Chien-Fu Tang ,  Isaac Y. Chen ,  Kuang-Fu Chang ,  Hsin-Yi Wu ,  An-Tung Chen

    发明人： Chien-Fu Tang ,  Isaac Y. Chen ,  Kuang-Fu Chang ,  Hsin-Yi Wu ,  An-Tung Chen

    IPC分类号： H02M1/32 ,  H02M3/335 ,  H02H7/122 ,  H02M1/00

    CPC分类号： H02M3/33523 ,  H02M1/32 ,  H02M3/33515 ,  H02M2001/0025

    摘要： The present invention discloses a flyback power supply circuit with a programmable function and a control method thereof. The flyback power supply circuit includes: a transformer circuit, a power switch circuit, a primary side control circuit, an opto-coupler circuit, and a secondary side control circuit. The primary side control circuit determines whether an over voltage condition occurs, and further determines whether to generate an over voltage protection signal to turn OFF a power switch of the power switch circuit according to a rate of increase of a feedback signal and a control level, or according to the rate of increase of the feedback signal and a rate of change of a target control signal.

    摘要翻译： 本发明公开了一种具有可编程功能的反激式电源电路及其控制方法。 回扫电源电路包括：变压器电路，电源开关电路，初级侧控制电路，光耦合器电路和次级侧控制电路。 初级侧控制电路确定是否发生过电压状态，并且还根据反馈信号的增加率和控制电平来确定是否产生过电压保护信号以关断功率开关电路的电源开关， 或根据反馈信号的增加速率和目标控制信号的变化率。

    AVERAGE CURRENT REGULATOR AND DRIVER CIRCUIT THEREOF AND METHOD FOR REGULATING AVERAGE CURRENT
    2.
    发明申请
    AVERAGE CURRENT REGULATOR AND DRIVER CIRCUIT THEREOF AND METHOD FOR REGULATING AVERAGE CURRENT 有权
    平均电流调节器及其驱动电路及调节平均电流的方法

    公开(公告)号：US20110068761A1

    公开(公告)日：2011-03-24

    申请号：US12878185

    申请日：2010-09-09

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

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

    IPC分类号： G05F1/00

    CPC分类号： H02M3/156 ,  H02M2001/0009 ,  H05B33/0815 ,  Y02B20/347

    摘要： The present invention discloses an average current regulator, a driver circuit of an average current regulator, and a method for regulating an average current. The average current regulator includes: a power stage including at least one power transistor which switches according to a pulse width modulation (PWM) signal to convert an input voltage to an output current; a feedback circuit coupled to the power stage, for generating a feedback signal; an ON-time controller coupled to the feedback circuit, for receiving the feedback signal and generating an ON-time signal according to the feedback signal and an average reference signal relating to a target average current; and a PWM controller, for generating the PWM signal according to the ON-time signal to regulate the average of the output current to the target average current.

    摘要翻译： 本发明公开了一种平均电流调节器，平均电流调节器的驱动电路和用于调节平均电流的方法。 平均电流调节器包括：功率级，包括至少一个功率晶体管，其根据脉冲宽度调制（PWM）信号切换以将输入电压转换为输出电流; 耦合到功率级的反馈电路，用于产生反馈信号; 耦合到反馈电路的接通时间控制器，用于接收反馈信号并根据反馈信号和与目标平均电流相关的平均参考信号产生接通时间信号; 以及PWM控制器，用于根据接通时间信号产生PWM信号，以将输出电流的平均值调节到目标平均电流。

    Average current regulator and driver circuit thereof and method for regulating average current
    3.
    发明授权
    Average current regulator and driver circuit thereof and method for regulating average current 有权
    平均电流调节器及其驱动电路及调节平均电流的方法

    公开(公告)号：US08400127B2

    公开(公告)日：2013-03-19

    申请号：US12878185

    申请日：2010-09-09

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

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

    IPC分类号： G05F1/40

    CPC分类号： H02M3/156 ,  H02M2001/0009 ,  H05B33/0815 ,  Y02B20/347

    摘要： The present invention discloses an average current regulator, a driver circuit of an average current regulator, and a method for regulating an average current. The average current regulator includes: a power stage including at least one power transistor which switches according to a pulse width modulation (PWM) signal to convert an input voltage to an output current; a feedback circuit coupled to the power stage, for generating a feedback signal; an ON-time controller coupled to the feedback circuit, for receiving the feedback signal and generating an ON-time signal according to the feedback signal and an average reference signal relating to a target average current; and a PWM controller, for generating the PWM signal according to the ON-time signal to regulate the average of the output current to the target average current.

    摘要翻译： 本发明公开了一种平均电流调节器，平均电流调节器的驱动电路和用于调节平均电流的方法。 平均电流调节器包括：功率级，包括至少一个功率晶体管，其根据脉冲宽度调制（PWM）信号切换以将输入电压转换为输出电流; 耦合到功率级的反馈电路，用于产生反馈信号; 耦合到反馈电路的接通时间控制器，用于接收反馈信号并根据反馈信号和与目标平均电流相关的平均参考信号产生接通时间信号; 以及PWM控制器，用于根据接通时间信号产生PWM信号，以将输出电流的平均值调节到目标平均电流。

    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。

    On-chip mode-setting circuit and method for a chip
    7.
    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
    8.
    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。

    MIXED MODE COMPENSATION CIRCUIT
    10.
    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。