公开(公告)号：US09236806B2

公开(公告)日：2016-01-12

申请号：US14154333

申请日：2014-01-14

申请人： SYSTEM GENERAL CORP.

发明人： Ta-Yung Yang ,  Chou-Sheng Wang ,  Pei-Sheng Tsu ,  Yi-Min Hsu

IPC分类号： H02M3/335 ,  H02M1/00

CPC分类号： H02M3/33523 ,  H02M3/33515 ,  H02M2001/0032 ,  Y02B70/16

摘要： Method and apparatus for controlling a programmable power converter are provided. The method and apparatus generate a first power source and a second power source. The voltage level of the second power source is lower than the voltage level of the first power source. The first power source and the second power source provide a power supply for a control circuit. The control circuit will use the first power source as its power supply when the first power source is low. The control circuit will use the second power source as its power supply for saving the power when the first power source is high.

摘要翻译： 提供了用于控制可编程功率转换器的方法和装置。 该方法和装置产生第一电源和第二电源。 第二电源的电压电平低于第一电源的电压电平。 第一电源和第二电源为控制电路提供电源。 当第一电源为低电平时，控制电路将使用第一电源作为电源。 控制电路将使用第二电源作为其电源，以在第一电源高时节省功率。

公开(公告)号：US09184665B2

公开(公告)日：2015-11-10

申请号：US14069380

申请日：2013-11-01

申请人： Chien-Tung Lan ,  Ta-Yung Yang

发明人： Chien-Tung Lan ,  Ta-Yung Yang

IPC分类号： H02M11/00 ,  H02M3/335 ,  H02M1/32

CPC分类号： H02M3/33507 ,  H02M2001/327

摘要： A control circuit of a power converter and a method for controlling the power converter are provided. The control circuit of the power converter comprises a switching circuit and a temperature-sensing device. The switching circuit generates a switching signal in response to a feedback signal, and the switching circuit generates a current-sensing signal for regulating an output of the power converter. The temperature-sensing device generates a temperature signal in response to temperature of the temperature-sensing device.

摘要翻译： 提供了功率转换器的控制电路和用于控制功率转换器的方法。 功率转换器的控制电路包括开关电路和温度感测装置。 开关电路响应于反馈信号产生开关信号，并且开关电路产生用于调节功率转换器的输出的电流感测信号。 温度感测装置响应于温度感测装置的温度产生温度信号。

公开(公告)号：US09159450B2

公开(公告)日：2015-10-13

申请号：US13847567

申请日：2013-03-20

申请人： SYSTEM GENERAL CORP.

发明人： Li Lin ,  Yue-Hong Tang ,  Chin-Yen Lin ,  Jung-Sheng Chen ,  Ta-Yung Yang

IPC分类号： G11C27/02 ,  H03K5/00 ,  H02M3/335

CPC分类号： G11C27/02 ,  G11C27/026 ,  H02M3/33523

摘要： A sampling circuit of the power converter according to the present invention comprises an amplifier circuit receiving a reflected voltage for generating a first signal. A first switch and a first capacitor are utilized to generate a second signal in response to the reflected voltage. A sample-signal circuit generates a sample signal in response to the disable of a switching signal. The switching signal is generated in accordance with a feedback signal for regulating an output of the power converter. The feedback signal is generated in accordance with the second signal. The sample signal is utilized to control the first switch for sampling the reflected voltage. The sample signal is disabled once the first signal is lower than the second signal. The sampling circuit precisely samples the reflected voltage of the transformer of the power converter for regulating the output of the power converter.

摘要翻译： 根据本发明的功率转换器的采样电路包括接收用于产生第一信号的反射电压的放大器电路。 利用第一开关和第一电容器来响应于反射电压产生第二信号。 采样信号电路响应于开关信号的禁用而产生采样信号。 根据用于调节功率转换器的输出的反馈信号产生开关信号。 反馈信号根据第二信号产生。 采样信号用于控制第一开关以对反射电压进行采样。 第一个信号低于第二个信号时，采样信号被禁止。 采样电路对功率转换器的变压器的反射电压进行精确采样，以调节功率转换器的输出。

公开(公告)号：US09049764B2

公开(公告)日：2015-06-02

申请号：US14261613

申请日：2014-04-25

申请人： SYSTEM GENERAL CORP.

发明人： Ta-Yung Yang ,  Chuh-Ching Li ,  Ming-Chieh Lee ,  Kuo-Hsien Huang

IPC分类号： H05B33/08

CPC分类号： H05B33/0815 ,  H05B33/0818 ,  Y02B20/347

摘要： A LED drive circuit according to the present invention comprises a controller and a programmable signal. The controller generates a switching signal coupled to switch a magnetic device for generating an output current to drive a plurality of LEDs. The programmable signal is coupled to regulate a current-control signal of the controller. The switching signal is modulated in response to the current-control signal for regulating the output current, and the level of the output current is correlated to the current-control signal.

摘要翻译： 根据本发明的LED驱动电路包括控制器和可编程信号。 控制器产生耦合以切换磁性装置以产生输出电流以驱动多个LED的切换信号。 可编程信号被耦合以调节控制器的电流控制信号。 响应于用于调节输出电流的电流控制信号来调制开关信号，并且输出电流的电平与电流控制信号相关。

公开(公告)号：US08902999B2

公开(公告)日：2014-12-02

申请号：US13682741

申请日：2012-11-21

申请人： Ta-Yung Yang

发明人： Ta-Yung Yang

IPC分类号： H04L25/00 ,  H04L7/027 ,  H03K3/00 ,  H04L12/10 ,  H04L25/02

CPC分类号： H03K3/00 ,  H04L12/10 ,  H04L25/0266 ,  H04L25/0272

摘要： An isolation interface circuit is disclosed. The isolation interface circuit comprising a transmitting circuit and a receiving circuit. The transmitting circuit configured to receive a first serial interface signal and a second serial interface signal for generating a differential polarity pulse signal. The receiving circuit configured to receive the differential polarity pulse signal for generating the first serial interface signal and the second serial interface signal. The differential polarity pulse signal are generated in response to the first serial interface signal and the second serial interface signal. The first serial interface signal and the second serial interface signal are generated in accordance with the differential polarity pulse signal. In a period, only one of the transmitting circuit and the receiving circuit can be enabled.

摘要翻译： 公开了一种隔离接口电路。 隔离接口电路包括发送电路和接收电路。 发送电路被配置为接收第一串行接口信号和第二串行接口信号，用于产生差分极性脉冲信号。 接收电路被配置为接收用于产生第一串行接口信号和第二串行接口信号的差分极性脉冲信号。 响应于第一串行接口信号和第二串行接口信号产生差分极性脉冲信号。 第一串行接口信号和第二串行接口信号根据差分极性脉冲信号产生。 在一段时间内，只能使能发送电路和接收电路之一。

公开(公告)号：US20140146579A1

公开(公告)日：2014-05-29

申请号：US14088628

申请日：2013-11-25

申请人： SYSTEM GENERAL CORP.

发明人： TA-YUNG YANG ,  CHIN-YEN LIN ,  JUNG-SHENG CHEN ,  LI LIN

IPC分类号： H02M3/335

CPC分类号： H02M3/33523 ,  H03K17/063

摘要： A controller of the power converter according to the present invention comprises a gate driver. The gate driver generates a gate-drive signal. The gate-drive signal is coupled to drive a power transistor to switch a transformer of the power converter for regulating an output of the power converter. The gate driver has a charge-pump circuit for charging pump a voltage level of the gate-drive signal. Therefore, the gate-drive signal can fully turn on the power transistor.

摘要翻译： 根据本发明的功率转换器的控制器包括栅极驱动器。 栅极驱动器产生栅极驱动信号。 栅极驱动信号被耦合以驱动功率晶体管以切换功率转换器的变压器，以调节功率转换器的输出。 栅极驱动器具有电荷泵电路，用于对栅极驱动信号的电压电平进行充电。 因此，栅极驱动信号可以完全打开功率晶体管。

公开(公告)号：US20140146576A1

公开(公告)日：2014-05-29

申请号：US14088633

申请日：2013-11-25

申请人： SYSTEM GENERAL CORP.

发明人： TA-YUNG YANG

IPC分类号： H02M3/335

CPC分类号： H02M3/33569 ,  H02M1/088 ,  H02M1/44

摘要： A dual gate drive circuit for a power converter and a control method are provided for reducing EMI of the power converter. The dual gate drive circuit comprises a switch and a switching control circuit. The switch is coupled to a transformer of the power converter to switch the transformer for regulating an output of the power converter. The switching control circuit generates a first switching signal and a second switching signal in response to a feedback signal to switch the switch for switching the transformer. The feedback signal is correlated to the output of the power converter. The second switching signal is enabled after a time delay once the first switching signal is enabled.

摘要翻译： 提供了用于功率转换器的双栅极驱动电路和控制方法，用于降低功率转换器的EMI。 双栅极驱动电路包括开关和开关控制电路。 开关耦合到功率转换器的变压器，以切换变压器以调节功率转换器的输出。 切换控制电路响应于反馈信号产生第一切换信号和第二切换信号，以切换开关以切换变压器。 反馈信号与功率转换器的输出相关。 一旦第一个切换信号被使能，第二个切换信号在一段时间延迟之后使能。

公开(公告)号：US20140103909A1

公开(公告)日：2014-04-17

申请号：US14048037

申请日：2013-10-08

申请人： Yi-Chi Lin ,  Yung-Sheng Wu

发明人： Yi-Chi Lin ,  Yung-Sheng Wu

IPC分类号： G01B7/00

CPC分类号： G01B7/00 ,  G01D5/20 ,  H02P6/182 ,  H02P6/20

摘要： A method and a circuit for detecting positions for a motor are provided. The circuit includes a control circuit for generating PWM signals, high-side transistors and low-side transistors, resistors and a microcontroller. The high-side transistors and the low-side transistors generate voltage signals configured to drive the motor. The resistors coupled to the low-side transistors generate sensing signals in response to motor currents and back-EMF signals. The microcontroller controls the control circuit. the PWM signals are utilized to control the high-side transistors and the low-side transistor for generating the voltage signals. The high-side transistors are coupled to the input power source. The low-side transistors are coupled to the ground via the resistors. The control circuit determines the motor position in accordance with the sensing signals.

摘要翻译： 提供了一种用于检测电动机位置的方法和电路。 该电路包括用于产生PWM信号的控制电路，高侧晶体管和低侧晶体管，电阻器和微控制器。 高侧晶体管和低侧晶体管产生构造成驱动电动机的电压信号。 耦合到低侧晶体管的电阻器响应于电机电流和反电动势信号产生感测信号。 微控制器控制控制电路。 PWM信号用于控制用于产生电压信号的高侧晶体管和低侧晶体管。 高侧晶体管耦合到输入电源。 低端晶体管通过电阻耦合到地。 控制电路根据感测信号确定电机位置。

公开(公告)号：US08698474B2

公开(公告)日：2014-04-15

申请号：US13095074

申请日：2011-04-27

申请人： Ta-Yung Yang ,  Wei-Hsuan Huang ,  Rui-Hong Lu

发明人： Ta-Yung Yang ,  Wei-Hsuan Huang ,  Rui-Hong Lu

IPC分类号： G05F1/00 ,  H02M1/00

CPC分类号： H02M1/36

摘要： A start-up circuit with low standby power loss for power converters according to present invention comprises a first diode and a second diode coupled to an input voltage of the power converter. A start-up resistor is coupled to the join of the first diode and the second diode. A high-voltage switch is coupled to the start-up resistor to generate a power source. A control circuit generates a switching signal for switching a transformer. A detection circuit generates a disable signal in response to the input voltage to disable the switching signal. A winding of the transformer is coupled to the power source to generate the power for the power source. The high-voltage switch is turned off to cut off the start-up resistor for saving the power loss once the voltage of the power source is higher than a threshold.

摘要翻译： 根据本发明的用于功率转换器的具有低备用功率损耗的启动电路包括耦合到功率转换器的输入电压的第一二极管和第二二极管。 启动电阻耦合到第一二极管和第二二极管的连接。 高压开关耦合到启动电阻器以产生电源。 控制电路产生用于切换变压器的开关信号。 检测电路响应于输入电压产生禁止信号以禁用开关信号。 变压器的绕组耦合到电源以产生用于电源的电力。 一旦电源电压高于阈值，高电压开关就关闭，以切断启动电阻，以节省功率损耗。

公开(公告)号：US20140092645A1

公开(公告)日：2014-04-03

申请号：US14040907

申请日：2013-09-30

申请人： SYSTEM GENERAL CORP.

发明人： TA-YUNG YANG

IPC分类号： H02M3/335

CPC分类号： H02M3/33515 ,  H02M3/33507 ,  H02M2001/0032 ,  Y02B70/16

摘要： A control circuit of a power converter is provided. It comprises a signal generation circuit generating an oscillation signal in accordance with an output load. A PWM circuit generates a switching signal according to a voltage-loop signal, a current-loop signal and the oscillation signal for regulating an output of the power converter. A regulation circuit receives a compensation signal for an output cable compensation and a wake-up. The compensation signal is coupled to increase a switching frequency of the switching signal once the output of the power converter is lower than a low-voltage threshold. The control circuit reduces the voltage drop of the output when the output load is changed.

摘要翻译： 提供电力转换器的控制电路。 它包括根据输出负载产生振荡信号的信号产生电路。 PWM电路根据电压环路信号，电流环路信号和用于调节功率转换器的输出的振荡信号产生开关信号。 调节电路接收输出电缆补偿和唤醒的补偿信号。 一旦功率转换器的输出低于低电压阈值，则补偿信号被耦合以增加开关信号的开关频率。 当输出负载变化时，控制电路可以降低输出的电压降。