公开(公告)号：US09379622B2

公开(公告)日：2016-06-28

申请号：US13934242

申请日：2013-07-03

Applicant: Chou-Sheng Wang ,  Chia-Yo Yeh ,  Rui-Hong Lu ,  Jhih-Da Hsu ,  Ying-Chieh Su

Inventor： Chou-Sheng Wang ,  Chia-Yo Yeh ,  Rui-Hong Lu ,  Jhih-Da Hsu ,  Ying-Chieh Su

IPC: H02M3/335

CPC classification number: H02M3/33515 ,  H02M3/33507 ,  H02M3/33592 ,  Y02B70/1475

Abstract: A control circuit and a method for controlling a power converter are provided. The method for controlling the power converter includes the following steps. A detection signal is received from the secondary side of the power transformer and a first switching signal is generated in accordance with the detection signal. A second switching signal is generated in accordance with the first switching signal. A voltage signal is generated in accordance with the second switching signal. A comparison signal is generated in accordance with the first switching signal and the second switching signal. The voltage signal and the comparison signal are compared for outputting a comparison result. A gate signal is generated in accordance with the detection signal and the comparison result to control on and off states of a synchronization switch.

Abstract translation: 提供了一种用于控制功率转换器的控制电路和方法。 用于控制功率转换器的方法包括以下步骤。 从电力变压器的次级侧接收检测信号，根据检测信号产生第一切换信号。 根据第一切换信号产生第二切换信号。 根据第二开关信号产生电压信号。 根据第一开关信号和第二开关信号产生比较信号。 比较电压信号和比较信号以输出比较结果。 根据检测信号和比较结果生成门信号，以控制同步开关的接通和断开状态。

公开(公告)号：US20140009976A1

公开(公告)日：2014-01-09

申请号：US13934242

申请日：2013-07-03

Applicant: Chou-Sheng Wang ,  Chia-Yo Yeh ,  Rui-Hong Lu ,  Jhih-Da Hsu ,  Ying-Chieh Su

Inventor： Chou-Sheng Wang ,  Chia-Yo Yeh ,  Rui-Hong Lu ,  Jhih-Da Hsu ,  Ying-Chieh Su

IPC: H02M3/335

CPC classification number: H02M3/33515 ,  H02M3/33507 ,  H02M3/33592 ,  Y02B70/1475

Abstract: A control circuit and a method for controlling a power converter are provided. The method for controlling the power converter includes the following steps. A detection signal is received from the secondary side of the power transformer and a first switching signal is generated in accordance with the detection signal. A second switching signal is generated in accordance with the first switching signal. A voltage signal is generated in accordance with the second switching signal. A comparison signal is generated in accordance with the first switching signal and the second switching signal. The voltage signal and the comparison signal are compared for outputting a comparison result. A gate signal is generated in accordance with the detection signal and the comparison result to control on and off states of a synchronization switch.

Abstract translation: 提供了一种用于控制功率转换器的控制电路和方法。 用于控制功率转换器的方法包括以下步骤。 从电力变压器的次级侧接收检测信号，根据检测信号产生第一切换信号。 根据第一切换信号产生第二切换信号。 根据第二开关信号产生电压信号。 根据第一开关信号和第二开关信号产生比较信号。 比较电压信号和比较信号以输出比较结果。 根据检测信号和比较结果生成门信号，以控制同步开关的接通和断开状态。

公开(公告)号：US20120001600A1

公开(公告)日：2012-01-05

申请号：US12915563

申请日：2010-10-29

Applicant: TA-YUNG YANG ,  CHENG-SUNG CHEN ,  RUI-HONG LU

Inventor： TA-YUNG YANG ,  CHENG-SUNG CHEN ,  RUI-HONG LU

IPC: G05F1/70

CPC classification number: H02M1/4225 ,  H02M2003/1586 ,  Y02B70/126 ,  Y02P80/112

Abstract: A control circuit of an interleaved PFC power converter according to the present invention comprises a master switching control circuit, a slave switching control circuit, and a slave reference signal generator. The master switching control circuit generates a control signal and a first switching signal in response to an input voltage and a feedback signal. The first switching signal is utilized to control a first switch of the PFC power converter. The slave reference signal generator generates a slave control signal in response to a load condition of the PFC power converter and the control signal. The slave switching control circuit generates a second switching signal in response to the slave control signal. The slave control signal is utilized to control a second switch of the PFC power converter. The slave reference signal generator adjusts the control signal in response to the load condition for generating the slave control signal correspondingly. The slave control signal drives the slave switching control circuit to adjust the switching frequency of the second switch for reducing the switching loss.

Abstract translation: 根据本发明的交错PFC功率转换器的控制电路包括主开关控制电路，从开关控制电路和从参考信号发生器。 主开关控制电路响应于输入电压和反馈信号产生控制信号和第一开关信号。 第一开关信号用于控制PFC功率转换器的第一开关。 从参考信号发生器响应PFC功率转换器的负载状态和控制信号产生从控制信号。 从切换控制电路响应于从控制信号产生第二切换信号。 从控制信号用于控制PFC功率转换器的第二开关。 从参考信号发生器响应于相应地产生从控制信号的负载条件来调节控制信号。 从控制信号驱动从切换控制电路来调节第二开关的开关频率以减少开关损耗。

公开(公告)号：US08030992B2

公开(公告)日：2011-10-04

申请号：US12328202

申请日：2008-12-04

Applicant: Rui-Hong Lu ,  Sheng-Fu Hsu

Inventor： Rui-Hong Lu ,  Sheng-Fu Hsu

IPC: H03K5/00

CPC classification number: H03H11/1291 ,  H02M3/156

Abstract: A low-pass filter of the present invention comprises a plurality of filter units and a regulation unit. The filter units are coupled in series with each other and receive an input signal to filter the input signal for generating an output signal. The regulation unit is coupled to the filter units to regulate voltage levels of the filter units. The low-pass filter of the present invention can be integrated within the integrated circuit and reduce the prime cost.

Abstract translation: 本发明的低通滤波器包括多个滤波器单元和调节单元。 滤波器单元彼此串联耦合并且接收输入信号以对输入信号进行滤波以产生输出信号。 调节单元耦合到滤波器单元以调节滤波器单元的电压电平。 本发明的低通滤波器可以集成在集成电路内并降低主要成本。

公开(公告)号：US07936087B2

公开(公告)日：2011-05-03

申请号：US11684642

申请日：2007-03-12

Applicant: Ta-yung Yang ,  Rui-Hong Lu ,  Jenn-Yu G. Lin

Inventor： Ta-yung Yang ,  Rui-Hong Lu ,  Jenn-Yu G. Lin

IPC: H01H7/00

CPC classification number: H02J1/102 ,  H02M3/1584 ,  Y10T307/25 ,  Y10T307/406 ,  Y10T307/461 ,  Y10T307/74 ,  Y10T307/747 ,  Y10T307/766 ,  Y10T307/826 ,  Y10T307/865 ,  Y10T307/937

Abstract: A switching controller for parallel power converters is disclosed. The switching controller includes an input circuit coupled to an input terminal of the switching controller to receive an input signal. An integration circuit is coupled to the input circuit to generate an integration signal in response to the pulse width of the input signal. A control circuit generates a switching signal for switching the power converters. The switching signal is enabled in response to the enabling of the input signal. A programmable delay time is generated between the input signal and the switching signal. The pulse width of the switching signal is determined in response to the integration signal.

Abstract translation: 公开了并联电力转换器的开关控制器。 开关控制器包括耦合到开关控制器的输入端以接收输入信号的输入电路。 积分电路耦合到输入电路以响应于输入信号的脉冲宽度产生积分信号。 控制电路产生用于切换功率转换器的开关信号。 响应于输入信号的使能，使能开关信号。 在输入信号和开关信号之间产生可编程延迟时间。 响应于积分信号确定开关信号的脉冲宽度。

公开(公告)号：US07466569B2

公开(公告)日：2008-12-16

申请号：US11274125

申请日：2005-11-16

Applicant: Ta-Yung Yang ,  Rui-Hong Lu ,  Chuh-Ching Li ,  Feng-Cheng Tsao ,  Tso-Min Chen

Inventor： Ta-Yung Yang ,  Rui-Hong Lu ,  Chuh-Ching Li ,  Feng-Cheng Tsao ,  Tso-Min Chen

IPC: H02M3/335 ,  G05F1/40

CPC classification number: H02M3/33507 ,  Y02B70/1433

Abstract: The present invention provides a power converter having a phase lock circuit for quasi-resonant soft switching. The power converter includes a first circuit coupled to the feedback signal to generate a switching signal for switching a switching device and regulating the output of the power converter. A second circuit is coupled to an auxiliary winding of the transformer for generating a voltage signal in response to the voltage of the transformer. A phase lock circuit generates a control signal to enable the switching signal in accordance with the voltage signal. The switching signal further turns on the switching device in response to a valley voltage across the switching device.

Abstract translation: 本发明提供一种具有用于准谐振软开关的锁相电路的功率转换器。 功率转换器包括耦合到反馈信号的第一电路以产生用于切换开关装置并调节功率转换器的输出的开关信号。 第二电路耦合到变压器的辅助绕组，以响应于变压器的电压产生电压信号。 锁相电路根据电压信号产生控制信号以使能切换信号。 开关信号进一步响应于开关器件上的谷值电压而导通开关器件。

公开(公告)号：US06812769B1

公开(公告)日：2004-11-02

申请号：US10640424

申请日：2003-08-12

Applicant: Ta-yung Yang ,  Jenn-yu G. Lin ,  Rui-Hong Lu

Inventor： Ta-yung Yang ,  Jenn-yu G. Lin ,  Rui-Hong Lu

IPC: G06G712

CPC classification number: G06G7/16 ,  Y02P80/112

Abstract: The switched charge multiplier-divider according to the present invention is constructed of CMOS devices. Capacitor charge theory is employed to implement the circuit of the switched charge multiplier-divider. The switched charge multiplier-divider includes an output capacitor and controls the voltage across the output capacitor, so that it is proportional to the product of the charge current and the charge-time interval. The switched charge multiplier-divider is ideal for use in the power factor correction (PFC) of switching mode power supplies. Potentially, it can also be applied to automatic gain control (AGC) circuits.

Abstract translation: 根据本发明的开关电荷倍增器分频器由CMOS器件构成。 采用电容充电理论来实现开关电荷分频器的电路。 开关电荷倍增器分压器包括输出电容器并控制输出电容器两端的电压，使其与充电电流和充电时间间隔的乘积成比例。 开关电荷乘法器分频器是开关电源功率因数校正（PFC）的理想选择。 潜在地，它也可以应用于自动增益控制（AGC）电路。

公开(公告)号：US08854841B2

公开(公告)日：2014-10-07

申请号：US12840919

申请日：2010-07-21

Applicant: Ta-Yung Yang ,  Li Lin ,  Chuh-Ching Li ,  Sheng-Fu Hsu ,  Rui-Hong Lu

Inventor： Ta-Yung Yang ,  Li Lin ,  Chuh-Ching Li ,  Sheng-Fu Hsu ,  Rui-Hong Lu

IPC: H02M3/335

CPC classification number: H02M3/33523

Abstract: A controller for a power converter includes a clamping circuit, a switching circuit and a pulse generator. The clamping circuit is coupled to an input terminal of the controller for detecting a detection signal from a transformer. The switching circuit generates a switching signal to switch the transformer in response to the detection signal for regulating the power converter. A maximum level of the detection signal is clamped to be under a level of a threshold voltage during an off-period of the switching signal. Since the maximum level of the detection signal is clamped and the oscillating energy of the reflected signal is discharged, the speed of detecting the detection signal is increased. Therefore, the regulation of the primary-side controlled power converter can be improved accordingly.

Abstract translation: 一种用于功率转换器的控制器包括钳位电路，开关电路和脉冲发生器。 钳位电路耦合到控制器的输入端，用于检测来自变压器的检测信号。 开关电路响应于用于调节功率转换器的检测信号产生开关信号以切换变压器。 检测信号的最大电平在切换信号的截止周期期间被钳位在阈值电压的电平以下。 由于检测信号的最大电平被钳位并且反射信号的振荡能量被放电，所以检测信号的速度增加。 因此，可以相应地改善初级侧受控功率转换器的调节。

公开(公告)号：US08373399B2

公开(公告)日：2013-02-12

申请号：US12915563

申请日：2010-10-29

Applicant: Ta-Yung Yang ,  Cheng-Sung Chen ,  Rui-Hong Lu

Inventor： Ta-Yung Yang ,  Cheng-Sung Chen ,  Rui-Hong Lu

IPC: G05F1/00

CPC classification number: H02M1/4225 ,  H02M2003/1586 ,  Y02B70/126 ,  Y02P80/112

Abstract: A control circuit of an interleaved PFC power converter according to the present invention comprises a master switching control circuit, a slave switching control circuit, and a slave reference signal generator. The master switching control circuit generates a control signal and a first switching signal in response to an input voltage and a feedback signal. The first switching signal is utilized to control a first switch of the PFC power converter. The slave reference signal generator generates a slave control signal in response to a load condition of the PFC power converter and the control signal. The slave switching control circuit generates a second switching signal in response to the slave control signal. The slave control signal is utilized to control a second switch of the PFC power converter. The slave reference signal generator adjusts the control signal in response to the load condition for generating the slave control signal correspondingly. The slave control signal drives the slave switching control circuit to adjust the switching frequency of the second switch for reducing the switching loss.

Abstract translation: 根据本发明的交错PFC功率转换器的控制电路包括主开关控制电路，从开关控制电路和从参考信号发生器。 主开关控制电路响应于输入电压和反馈信号产生控制信号和第一开关信号。 第一开关信号用于控制PFC功率转换器的第一开关。 从参考信号发生器响应PFC功率转换器的负载状态和控制信号产生从控制信号。 从切换控制电路响应于从控制信号产生第二切换信号。 从控制信号用于控制PFC功率转换器的第二开关。 从参考信号发生器响应于相应地产生从控制信号的负载条件来调节控制信号。 从控制信号驱动从切换控制电路来调节第二开关的开关频率以减少开关损耗。

公开(公告)号：US20110317322A1

公开(公告)日：2011-12-29

申请号：US13218650

申请日：2011-08-26

Applicant: CHIA-LIANG CHIEN ,  RUI-HONG LU

Inventor： CHIA-LIANG CHIEN ,  RUI-HONG LU

IPC: H02H3/20

CPC classification number: H02H7/12 ,  H02M1/32 ,  H02M3/33507

Abstract: A control circuit with protection circuit for power supply according to the present invention comprises a peak-detection circuit and a protection circuit. The peak-detection circuit detects an AC input voltage and generates a peak-detection signal. The protection circuit comprises an over-voltage protection circuit. The over-voltage protection circuit generates an over-voltage protection signal in response to the peak-detection signal. The protection circuit generates a reset signal to reduce the output of the power supply in response to the over-voltage protection signal. The present invention can protect the power supply in response to the AC input voltage effectively through the peak-detection circuit.

Abstract translation: 根据本发明的具有电源保护电路的控制电路包括峰值检测电路和保护电路。 峰值检测电路检测交流输入电压并产生峰值检测信号。 保护电路包括过电压保护电路。 过电压保护电路响应峰值检测信号产生过电压保护信号。 保护电路产生复位信号，以响应过电压保护信号减小电源的输出。 本发明可以通过峰值检测电路有效地响应于AC输入电压来保护电源。