公开(公告)号：US09344002B2

公开(公告)日：2016-05-17

申请号：US13742529

申请日：2013-01-16

申请人： SYSTEM GENERAL CORP.

发明人： Ta-Yung Yang ,  Li Lin ,  Jung-Sheng Chen ,  Chih-Hsien Hsieh

IPC分类号： H02M7/48 ,  H02M3/335 ,  G01R31/42

CPC分类号： H02M7/48 ,  G01R31/42 ,  H02M3/33523

摘要： An adaptive sampling circuit of the power converter according to the present invention comprises a sample-and-hold unit and a signal-generation circuit. The sample-and-hold unit is coupled to a transformer to generate a feedback signal by sampling a demagnetized voltage of the transformer in response to a sample signal. The signal-generation circuit generates the sample signal in response to a magnetized voltage of the transformer, the demagnetized voltage of the transformer, a switching signal and a code. The sample signal is used for sampling the demagnetized voltage. The feedback signal is correlated to an output voltage of the power converter. The switching signal is generated in response to the feedback signal for switching the transformer and regulating the output of the power converter. The adaptive sampling circuit is used to precisely measure the demagnetized voltage of the transformer without the limitation of the transformer design.

摘要翻译： 根据本发明的功率转换器的自适应采样电路包括采样保持单元和信号发生电路。 采样和保持单元耦合到变压器以通过响应于采样信号对变压器的退磁电压进行采样来产生反馈信号。 信号发生电路响应于变压器的磁化电压，变压器的退磁电压，开关信号和代码产生采样信号。 采样信号用于对退磁电压进行采样。 反馈信号与功率转换器的输出电压相关。 响应于用于切换变压器的反馈信号和调节功率转换器的输出而产生开关信号。 自适应采样电路用于精确测量变压器的退磁电压，而不受变压器设计的限制。

公开(公告)号：US09270184B2

公开(公告)日：2016-02-23

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 ,  H02M1/00

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。

公开(公告)号：US20150049523A1

公开(公告)日：2015-02-19

申请号：US14460373

申请日：2014-08-15

申请人： SYSTEM GENERAL CORP.

发明人： Ta-Yung Yang ,  Chou-Sheng Wang ,  Tse-Jen Tseng

IPC分类号： H02M3/335 ,  H02M1/00

CPC分类号： H02M3/33592 ,  H02M2001/0048 ,  Y02B70/1475 ,  Y02B70/1491

摘要： The invention discloses a method for controlling a synchronous rectifier of a power converter and a control circuit using the same. The method includes the following steps. A control signal is generated to control a synchronous rectification transistor in response to an on-time of a switching signal, a level of a transformer voltage and an output voltage of the power converter. The switching signal is used for switching a transformer. The control signal is generated once the switching signal is turned off. A transformer signal is related to an input voltage of the power converter. The control signal is generated when the on-time of the switching signal is longer than a first time threshold.

摘要翻译： 本发明公开了一种用于控制功率转换器的同步整流器和使用该同步整流器的控制电路的方法。 该方法包括以下步骤。 产生控制信号以响应于开关信号的接通时间，变压器电压的电平和功率转换器的输出电压来控制同步整流晶体管。 开关信号用于开关变压器。 一旦切换信号被关闭，就产生控制信号。 变压器信号与功率转换器的输入电压有关。 当开关信号的接通时间长于第一时间阈值时，产生控制信号。

公开(公告)号：US09509224B2

公开(公告)日：2016-11-29

申请号：US14460373

申请日：2014-08-15

申请人： SYSTEM GENERAL CORP.

发明人： Ta-Yung Yang ,  Chou-Sheng Wang ,  Tse-Jen Tseng

IPC分类号： H02M3/335 ,  H02M1/00

CPC分类号： H02M3/33592 ,  H02M2001/0048 ,  Y02B70/1475 ,  Y02B70/1491

摘要： The invention discloses a method for controlling a synchronous rectifier of a power converter and a control circuit using the same. The method includes the following steps. A control signal is generated to control a synchronous rectification transistor in response to an on-time of a switching signal, a level of a transformer voltage and an output voltage of the power converter. The switching signal is used for switching a transformer. The control signal is generated once the switching signal is turned off. A transformer signal is related to an input voltage of the power converter. The control signal is generated when the on-time of the switching signal is longer than a first time threshold.

摘要翻译： 本发明公开了一种用于控制功率转换器的同步整流器和使用该同步整流器的控制电路的方法。 该方法包括以下步骤。 产生控制信号以响应于开关信号的接通时间，变压器电压的电平和功率转换器的输出电压来控制同步整流晶体管。 开关信号用于开关变压器。 一旦切换信号被关闭，就产生控制信号。 变压器信号与功率转换器的输入电压有关。 当开关信号的接通时间长于第一时间阈值时，产生控制信号。

公开(公告)号：US09252674B2

公开(公告)日：2016-02-02

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 ,  H03K17/06

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：US20140362608A1

公开(公告)日：2014-12-11

申请号：US14295329

申请日：2014-06-03

申请人： SYSTEM GENERAL CORP.

发明人： Ta-Yung Yang

IPC分类号： H02M3/335

CPC分类号： H02M3/33576 ,  H02M2001/0032 ,  Y02B70/16

摘要： The invention discloses a method for controlling a programmable primary-side-regulated power converter. The method includes the following steps. A light load situation is enabled for a first time period at a secondary side of a transformer. A transmit-code is generated at the secondary side of the transformer. A current pulse signal is generated at the secondary side of the transformer according to the transmit-code after the first time period. The light load situation is detected at a primary side of the transformer for the first time period. A current signal is detected by detecting a primary side switching current of the transformer. A receive-code is generated according to the current signal. An output current and/or an output voltage of the power converter is generated in accordance with the receive-code. The transmit-code and the receive-code are correlated. The current pulse signal and the current signal are correlated.

摘要翻译： 本发明公开了一种用于控制可编程一次侧调节功率转换器的方法。 该方法包括以下步骤。 在变压器的次级侧，第一时间段使能轻负载情况。 在变压器的次级侧产生发送代码。 根据第一时间段之后的发送代码，在变压器的次级侧产生电流脉冲信号。 第一次在变压器的初级侧检测到轻负载情况。 通过检测变压器的初级侧开关电流来检测电流信号。 根据当前信号生成接收码。 根据接收码产生功率转换器的输出电流和/或输出电压。 发送代码和接收代码是相关的。 当前脉冲信号和电流信号相关。

公开(公告)号：US08729930B2

公开(公告)日：2014-05-20

申请号：US13666080

申请日：2012-11-01

申请人： System General Corp.

发明人： Ta-Yung Yang

IPC分类号： H03K25/00 ,  H03K23/00 ,  H03K21/00

CPC分类号： H03M1/66

摘要： A multiplier-divider circuit for signal process according to the present invention comprises a digital-to-analog converter, a first counter, a second counter, an oscillation circuit, and a control-logic apparatus. The digital-to-analog converter generates an output signal of the multiplier-divider circuit in accordance with the value of an input signal and a first signal. The first counter generates the first signal in response to a clock signal and the duty cycle of the input signal. The second counter generates a second signal in response to the clock signal and the period of the input signal. The oscillation circuit generates the clock signal in accordance with a third signal. The control-logic apparatus generates the third signal in response to the second signal and a constant. The first signal is correlated to the duty cycle of the input signal. The second signal is correlated to the period of the input signal.

摘要翻译： 根据本发明的用于信号处理的乘法器分频器电路包括数模转换器，第一计数器，第二计数器，振荡电路和控制逻辑器件。 数模转换器根据输入信号和第一信号的值产生乘法器 - 分频器电路的输出信号。 第一计数器响应于时钟信号和输入信号的占空比产生第一信号。 第二计数器响应于时钟信号和输入信号的周期产生第二信号。 振荡电路根据第三信号产生时钟信号。 控制逻辑装置响应于第二信号产生第三信号和常数。 第一个信号与输入信号的占空比相关。 第二信号与输入信号的周期相关。

公开(公告)号：US20150372629A1

公开(公告)日：2015-12-24

申请号：US14309858

申请日：2014-06-19

申请人： SYSTEM GENERAL CORP.

发明人： Chih-Kai Huang ,  Ta-Yung Yang ,  Shih-Jen Yang

IPC分类号： H02P21/14 ,  H02P6/18 ,  H02P6/14 ,  H02P21/13

CPC分类号： H02P6/18 ,  H02P21/13 ,  H02P21/18

摘要： A sensor-less control system, a method and an apparatus of sensor-less field oriented control for permanent magnet motors are provided. The sensor-less control system includes a Clarke transform module, a Park transform module and an angle estimation module. The Clarke transform module generates orthogonal current signals in accordance with motor phase currents. The Park transform module generates a current signal in response to the orthogonal current signals and an angle signal. The angle estimation module generates the angle signal in response to the current signal. The angle signal is related to a commutation angle of the permanent magnet motor. The current signal is controlled approximate to zero. The angle signal associated with an angle-shift signal is configured to generate three phase motor voltages.

摘要翻译： 提供了无永磁电机的无传感器控制系统，无传感器磁场定向控制的方法和装置。 无传感器控制系统包括Clarke变换模块，Park变换模块和角度估计模块。 Clarke变换模块根据电机相电流产生正交电流信号。 Park变换模块响应于正交电流信号和角度信号产生电流信号。 角度估计模块响应于当前信号产生角度信号。 角度信号与永磁电动机的换向角有关。 电流信号接近零。 与角位移信号相关联的角度信号被配置为产生三相电动机电压。

公开(公告)号：US20150042303A1

公开(公告)日：2015-02-12

申请号：US14453618

申请日：2014-08-07

申请人： SYSTEM GENERAL CORP.

发明人： Ta-Yung Yang ,  Hung-Chun Chen

IPC分类号： H02M3/156

CPC分类号： H02M3/156 ,  H02M3/33523 ,  H02M2001/0032 ,  Y02B70/16

摘要： A control circuit of a power converter and a method therefore are provided. The control circuit comprises an input circuit, an amplifier, a PWM circuit, and a power management circuit. The input circuit is coupled to a transformer to generate a sensing signal related to an output voltage of the power converter. The amplifier generates a feedback signal according to the sensing signal and a reference signal. The PWM circuit generates a switching signal according to the feedback signal for switching the transformer and regulating the output voltage of the power converter. The power management circuit controls the reference signal according to the feedback signal. The power management circuit includes a timer for determining a period, and the output voltage of the power converter decreases while an output power of the power converter is lower than a light-load threshold. A method for controlling the control circuit is also disclosed.

摘要翻译： 因此，提供了功率转换器的控制电路及其方法。 控制电路包括输入电路，放大器，PWM电路和电源管理电路。 输入电路耦合到变压器以产生与功率转换器的输出电压相关的感测信号。 放大器根据感测信号和参考信号产生反馈信号。 PWM电路根据反馈信号产生开关信号，用于切换变压器并调节功率转换器的输出电压。 电源管理电路根据反馈信号控制参考信号。 功率管理电路包括用于确定周期的定时器，并且功率转换器的输出功率低于轻负载阈值时功率转换器的输出电压降低。 还公开了一种用于控制控制电路的方法。

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。