公开(公告)号：US09627982B2

公开(公告)日：2017-04-18

申请号：US14697438

申请日：2015-04-27

申请人： Kun-Yu Lin ,  Chien-Fu Tang ,  Hsin-Yi Wu ,  Kuang-Fu Chang

发明人： Kun-Yu Lin ,  Chien-Fu Tang ,  Hsin-Yi Wu ,  Kuang-Fu Chang

IPC分类号： H02M3/335 ,  H02M1/32

CPC分类号： H02M3/33507 ,  H02M2001/327

摘要： A flyback power converter includes a transformer which has a primary winding, a secondary winding, and an auxiliary winding; a power switch controlling the conduction of the primary winding; and a control circuit generating a control signal to control the power switch, wherein the control circuit is an integrated circuit having a current sensing pin for obtaining a current sensing signal of a current through the power switch. The flyback power converter further includes a temperature-sensitive resistor or a mode detection resistor coupled between the auxiliary winding and the current sensing pin. The temperature-sensitive resistor provides a temperature-related signal for the control circuit to perform an over-temperature protection, or the temperature-sensitive resistor provides a mode detection signal for the control circuit to determine an operation mode of the flyback power converter.

公开(公告)号：US08754617B2

公开(公告)日：2014-06-17

申请号：US13326904

申请日：2011-12-15

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

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

IPC分类号： G05F1/613 ,  H02M3/335

CPC分类号： H02M3/33523

摘要： A reverse shunt regulator includes a MOSFET connected between a cathode and an anode, a switch and a current source serially connected between the cathode and the anode, and an error amplifier having a positive input node to receive an internal reference voltage, a negative input node connected to the reference electrode, and an output node connected to a control electrode of the MOSFET. When the voltage of the reference electrode is within a range, the larger the voltage of the reference electrode is, the less the current of the MOSFET is. Application of this reverse shunt regulator to a flyback converter for output feedback will reduce the power loss in a green mode of the flyback converter.

摘要翻译： 反向并联调节器包括连接在阴极和阳极之间的MOSFET，串联连接在阴极和阳极之间的开关和电流源，以及具有用于接收内部参考电压的正输入节点的误差放大器，负输入节点 连接到参考电极，以及连接到MOSFET的控制电极的输出节点。 当参考电极的电压在一个范围内时，参考电极的电压越大，MOSFET的电流越小。 将反向分流调节器应用于反激式转换器以进行输出反馈将降低反激式转换器的绿色模式下的功率损耗。

公开(公告)号：US08674554B2

公开(公告)日：2014-03-18

申请号：US12818539

申请日：2010-06-18

申请人： Chi-Hua Lin ,  Chien-Fu Tang ,  Isaac Y Chen ,  An-Tung Chen

发明人： Chi-Hua Lin ,  Chien-Fu Tang ,  Isaac Y Chen ,  An-Tung Chen

IPC分类号： H02B1/24

CPC分类号： H02B1/24 ,  H04R3/007 ,  Y10T307/74 ,  Y10T307/766

摘要： A power off delay circuit includes a switch connected between an external power input terminal and an internal power supply terminal, a capacitor connected to the internal power supply terminal, and a hysteresis comparator to switch the switch according to the voltages of the external power input terminal and the internal power supply terminal. During on-time of the switch, the external power input terminal is connected to the internal power supply terminal and the capacitor can be charged by the external power source. When the switch is off, the capacitor provides electric power for an internal circuit. Application of the power off delay circuit to an audio system may eliminate the turn-off pops of the audio system.

摘要翻译： 断电延迟电路包括连接在外部电源输入端子和内部电源端子之间的开关，连接到内部电源端子的电容器和滞后比较器，用于根据外部电力输入端子的电压来切换开关 和内部电源端子。 在接通时，外部电源输入端子连接到内部电源端子，电容器可以通过外部电源充电。 当开关关闭时，电容为内部电路提供电力。 将断电延迟电路应用于音频系统可以消除音频系统的关闭声音。

公开(公告)号：US20130335038A1

公开(公告)日：2013-12-19

申请号：US13611416

申请日：2012-09-12

申请人： YEN-TE LEE ,  KUO-CHI LIU ,  FU-SHENG TSAI ,  KUANG-FENG LI ,  CHUNG-CHENG CHANG ,  JIUN-HUNG PAN ,  CHIEN-FU TANG ,  ISAAC Y. CHEN

发明人： YEN-TE LEE ,  KUO-CHI LIU ,  FU-SHENG TSAI ,  KUANG-FENG LI ,  CHUNG-CHENG CHANG ,  JIUN-HUNG PAN ,  CHIEN-FU TANG ,  ISAAC Y. CHEN

IPC分类号： H02M1/36

CPC分类号： H02M1/126 ,  H02M2001/0048 ,  H02M2001/322 ,  Y02B70/1491

摘要： A bleeding circuit and method for an electromagnetic interference filter detect whether or not an AC power source connected to the electromagnetic interference filter is removed, establish a discharge path for discharging a capacitor of the electromagnetic interference filter once the connected AC power source is removed, and cut off the discharge path during the AC power source is in connection to the electromagnetic interference filter for decreasing power consumption of the electromagnetic interference filter.

摘要翻译： 一种用于电磁干扰滤波器的泄放电路和方法，检测连接到电磁干扰滤波器的AC电源是否被去除，一旦连接的AC电源被去除，建立用于放电电磁干扰滤波器的电容器的放电路径，以及 在交流电源期间切断放电路径与电磁干扰滤波器相连，以降低电磁干扰滤波器的功耗。

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。

公开(公告)号：US20130063216A1

公开(公告)日：2013-03-14

申请号：US13644434

申请日：2012-10-04

申请人： CHI-HUA LIN ,  CHIEN-FU TANG ,  ISAAC Y. CHEN ,  AN-TUNG CHEN

发明人： CHI-HUA LIN ,  CHIEN-FU TANG ,  ISAAC Y. CHEN ,  AN-TUNG CHEN

IPC分类号： H03F1/30

CPC分类号： H02B1/24 ,  H04R3/007 ,  Y10T307/74 ,  Y10T307/766

摘要： A power off delay circuit includes a switch connected between an external power input terminal and an internal power supply terminal, a capacitor connected to the internal power supply terminal, and a hysteresis comparator to switch the switch according to the voltages of the external power input terminal and the internal power supply terminal. During on-time of the switch, the external power input terminal is connected to the internal power supply terminal and the capacitor can be charged by the external power source. When the switch is off, the capacitor provides electric power for an internal circuit. Application of the power off delay circuit to an audio system may eliminate the turn-off pops of the audio system.

摘要翻译： 断电延迟电路包括连接在外部电源输入端子和内部电源端子之间的开关，连接到内部电源端子的电容器和滞后比较器，用于根据外部电力输入端子的电压来切换开关 和内部电源端子。 在接通时，外部电源输入端子连接到内部电源端子，电容器可以通过外部电源充电。 当开关关闭时，电容为内部电路提供电力。 将断电延迟电路应用于音频系统可以消除音频系统的关闭声音。

公开(公告)号：US20120306459A1

公开(公告)日：2012-12-06

申请号：US13478015

申请日：2012-05-22

申请人： Jyun-Che Ho ,  Chien-Fu Tang ,  Isaac Y. Chen ,  Shao-Hung Lu ,  Tzu-Chen Lin

发明人： Jyun-Che Ho ,  Chien-Fu Tang ,  Isaac Y. Chen ,  Shao-Hung Lu ,  Tzu-Chen Lin

IPC分类号： G05F1/70

CPC分类号： H05B33/0818

摘要： The present invention discloses a power factor correction circuit, a control circuit therefor and a method for driving a power factor correction circuit. The power factor correction circuit receives rectified power obtained by rectifying AC power, and corrects the power factor thereof. The power factor correction circuit includes an inductor, and it generates a reference signal as a limit for the inductor current. The reference signal is proportional to Comp/Vin, wherein Comp is a signal relating to a feedback signal, and Vin is a voltage signal relating to the AC power or the rectified power.

摘要翻译： 本发明公开了一种功率因数校正电路及其控制电路及驱动功率因数校正电路的方法。 功率因数校正电路接收通过整流交流电源而得到的整流功率，校正其功率因数。 功率因数校正电路包括电感器，并产生参考信号作为电感电流的限制。 参考信号与Comp / Vin成比例，其中Comp是与反馈信号相关的信号，Vin是与AC电力或整流功率有关的电压信号。

公开(公告)号：US20120056683A1

公开(公告)日：2012-03-08

申请号：US13221011

申请日：2011-08-30

申请人： CHIEN-FU TANG ,  ISAAC Y. CHEN

发明人： CHIEN-FU TANG ,  ISAAC Y. CHEN

IPC分类号： H03B29/00

CPC分类号： H03K3/84 ,  G06F1/04 ,  H02M1/44 ,  H03B29/00 ,  H03K17/16

摘要： An oscillator generates a clock signal according to a voltage, a current and a capacitance, and a frequency jitter circuit and method use a random number to modulate the voltage, the current or the capacitance, or a count value to modulate the capacitance, to jitter the frequency of the clock signal.

摘要翻译： 振荡器根据电压，电流和电容产生时钟信号，并且频率抖动电路和方法使用随机数来调制电压，电流或电容或计数值以调制电容到抖动 时钟信号的频率。

公开(公告)号：US20120008345A1

公开(公告)日：2012-01-12

申请号：US13173417

申请日：2011-06-30

申请人： CHIEN-FU TANG ,  ISAAC Y. CHEN ,  LIANG-PIN TAI

发明人： CHIEN-FU TANG ,  ISAAC Y. CHEN ,  LIANG-PIN TAI

IPC分类号： H02M3/335

CPC分类号： H02M3/33515

摘要： An apparatus and method for output voltage calibration of a primary feedback flyback power module extract the difference between the output voltage of the power module and a target value, and according thereto, calibrate a reference voltage which is used in regulation of the output voltage, to thereby calibrate the output voltage to be the target value.

摘要翻译： 用于主反馈反激功率模块的输出电压校准的装置和方法提取功率模块的输出电压与目标值之间的差异，并且根据该装置和方法校准用于调节输出电压的参考电压， 从而将输出电压校准为目标值。

公开(公告)号：US20110233716A1

公开(公告)日：2011-09-29

申请号：US13048057

申请日：2011-03-15

申请人： CHIEN-FU TANG ,  ISAAC Y. CHEN

发明人： CHIEN-FU TANG ,  ISAAC Y. CHEN

IPC分类号： H01L29/06

CPC分类号： G11C16/30 ,  H01L23/3192 ,  H01L23/525 ,  H01L2924/0002 ,  H01L2924/00

摘要： A circuit structure of an ultra high voltage level shifter includes a low voltage substrate having the electronic elements of the ultra high voltage level shifter thereon, an ultra high voltage redistribution layer, and a passivation layer between the substrate and the redistribution layer to prevent dielectric breakdown between the redistribution layer and the substrate.

摘要翻译： 超高电压电平移位器的电路结构包括其上具有超高电平电平移位器的电子元件的低电压基板，超高电压再分布层以及衬底和再分配层之间的钝化层，以防止电介质击穿 在再分布层和衬底之间。