公开(公告)号：US08816753B2

公开(公告)日：2014-08-26

申请号：US13073862

申请日：2011-03-28

申请人： Rui-Hong Lu ,  Han-Chung Tai ,  Hsin-Chih Chiang

发明人： Rui-Hong Lu ,  Han-Chung Tai ,  Hsin-Chih Chiang

IPC分类号： H01H37/76 ,  G11C17/18

CPC分类号： G11C17/18 ,  G11C17/16

摘要： A trim circuit for a power supply controller includes: a control circuit; at least a capacitance type programmable circuit connection; and a switching circuit, under control of the control circuit, the switching circuit selectively coupling the capacitance type programmable circuit connection to anyone of an operation voltage and a programming voltage, for determining a programming state of the capacitance type programmable circuit connection.

摘要翻译： 电源控制器的微调电路包括：控制电路; 至少电容式可编程电路连接; 以及开关电路，在所述控制电路的控制下，所述开关电路将所述电容式可编程电路连接选择性地耦合到任何操作电压和编程电压，以确定所述电容型可编程电路连接的编程状态。

公开(公告)号：US20120249220A1

公开(公告)日：2012-10-04

申请号：US13073862

申请日：2011-03-28

申请人： Rui-Hong Lu ,  Han-Chung Tai ,  Hsin-Chih Chiang

发明人： Rui-Hong Lu ,  Han-Chung Tai ,  Hsin-Chih Chiang

IPC分类号： H01H37/74

CPC分类号： G11C17/18 ,  G11C17/16

摘要： A trim circuit for a power supply controller includes: a control circuit; at least a capacitance type programmable circuit connection; and a switching circuit, under control of the control circuit, the switching circuit selectively coupling the capacitance type programmable circuit connection to anyone of an operation voltage and a programming voltage, for determining a programming state of the capacitance type programmable circuit connection.

摘要翻译： 电源控制器的微调电路包括：控制电路; 至少电容式可编程电路连接; 以及开关电路，在所述控制电路的控制下，所述开关电路将所述电容式可编程电路连接选择性地耦合到任何操作电压和编程电压，以确定所述电容型可编程电路连接的编程状态。

公开(公告)号：US08854841B2

公开(公告)日：2014-10-07

申请号：US12840919

申请日：2010-07-21

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

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

IPC分类号： H02M3/335

CPC分类号： H02M3/33523

摘要： 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.

摘要翻译： 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

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

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

IPC分类号： G05F1/00

CPC分类号： H02M1/4225 ,  H02M2003/1586 ,  Y02B70/126 ,  Y02P80/112

摘要： 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.

摘要翻译： 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：US07426120B2

公开(公告)日：2008-09-16

申请号：US11287268

申请日：2005-11-28

申请人： Ta-Yung Yang ,  Rui-Hong Lu ,  Chuh-Ching Li ,  Feng-Cheng Tsao ,  Pei-Sheng Tsu

发明人： Ta-Yung Yang ,  Rui-Hong Lu ,  Chuh-Ching Li ,  Feng-Cheng Tsao ,  Pei-Sheng Tsu

IPC分类号： H02M3/335

CPC分类号： H02M3/33523 ,  Y02B70/1433

摘要： The present invention provides a switching control circuit having a valley voltage detector to achieve the soft switching and improve the efficiency of a power converter. The switching control circuit includes a control circuit coupled to the feedback signal to generate a switching signal. Through an output circuit, the switching signal drives a switching device for switching a transformer and regulating the output of the power converter. The valley voltage detector is coupled to an auxiliary winding of the transformer for generating a control signal in response to the voltage of the transformer. The control signal is used for enabling the switching signal. The switching signal further turns on the switching device in response to a valley voltage across the switching device.

摘要翻译： 本发明提供一种具有谷值电压检测器的开关控制电路，以实现软开关并提高功率转换器的效率。 开关控制电路包括耦合到反馈信号的控制电路以产生开关信号。 通过输出电路，开关信号驱动用于切换变压器并调节功率转换器的输出的开关装置。 谷值电压检测器耦合到变压器的辅助绕组，以响应于变压器的电压产生控制信号。 控制信号用于启用切换信号。 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：US08503144B2

公开(公告)日：2013-08-06

申请号：US12338112

申请日：2008-12-18

申请人： Meng-Jen Tsai ,  Chao-Chih Lin ,  Rui-Hong Lu ,  Chiu-Chih Chiang

发明人： Meng-Jen Tsai ,  Chao-Chih Lin ,  Rui-Hong Lu ,  Chiu-Chih Chiang

IPC分类号： H02H3/20

CPC分类号： H02H7/1213 ,  H02M1/32 ,  H02M3/33507

摘要： 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 generates a reset signal to reduce the output of the power supply in response to the peak-detection signal. The present invention can protect the power supply in response to the AC input voltage effectively through the peak-detection circuit.

摘要翻译： 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。 保护电路产生复位信号，以响应峰值检测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。

公开(公告)号：US20100090758A1

公开(公告)日：2010-04-15

申请号：US12328202

申请日：2008-12-04

申请人： Rui-Hong Lu ,  Sheng-Fu Hsu

发明人： Rui-Hong Lu ,  Sheng-Fu Hsu

IPC分类号： H03H11/04

CPC分类号： H03H11/1291 ,  H02M3/156

摘要： 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.

摘要翻译： 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：US20080225560A1

公开(公告)日：2008-09-18

申请号：US11684642

申请日：2007-03-12

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

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

IPC分类号： H02M7/48

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

摘要： 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.

摘要翻译： 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：US07365997B2

公开(公告)日：2008-04-29

申请号：US11357044

申请日：2006-02-21

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

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

IPC分类号： H02M3/335

CPC分类号： H03L7/00 ,  H02M3/156 ,  H02M3/1563

摘要： The present invention provides a synchronous switching control circuit for variable switching frequency power converters. It comprises a first circuit to generate a first signal in response to an input synchronous signal of a power converter. A second circuit is coupled to the first circuit to generate a second signal in accordance with the frequency of the first signal. Only when the first signal is operated in a specific frequency range, the synchronous operation is allowed. An oscillation circuit is connected to the first circuit and the second circuit to receive the first signal and the second signal to generate an oscillation signal. The oscillation signal is utilized to enable the switching signal of the power converter. The switching signal is thus synchronized with the input synchronous signal in response to the enable of the second signal. Otherwise, the switching signal will be free running.

摘要翻译： 本发明提供一种用于可变开关频率功率转换器的同步开关控制电路。 它包括响应于功率转换器的输入同步信号产生第一信号的第一电路。 第二电路耦合到第一电路，以根据第一信号的频率产生第二信号。 只有当第一个信号在特定频率范围内工作时，允许同步操作。 振荡电路连接到第一电路和第二电路以接收第一信号和第二信号以产生振荡信号。 振荡信号用于使能功率转换器的开关信号。 因此，响应于第二信号的使能，切换信号与输入同步信号同步。 否则，切换信号将自由运行。

公开(公告)号：US20070121352A1

公开(公告)日：2007-05-31

申请号：US11287268

申请日：2005-11-28

申请人： Ta-Yung Yang ,  Rui-Hong Lu ,  Chuh-Ching Li ,  Feng-Cheng Tsao ,  Pei-Sheng Tsu

发明人： Ta-Yung Yang ,  Rui-Hong Lu ,  Chuh-Ching Li ,  Feng-Cheng Tsao ,  Pei-Sheng Tsu

IPC分类号： H02M3/335

CPC分类号： H02M3/33523 ,  Y02B70/1433

摘要： The present invention provides a switching control circuit having a valley voltage detector to achieve the soft switching and improve the efficiency of a power converter. The switching control circuit includes a control circuit coupled to the feedback signal to generate a switching signal. Through an output circuit, the switching signal drives a switching device for switching a transformer and regulating the output of the power converter. The valley voltage detector is coupled to an auxiliary winding of the transformer for generating a control signal in response to the voltage of the transformer. The control signal is used for enabling the switching signal. The switching signal further turns on the switching device in response to a valley voltage across the switching device.

摘要翻译： 本发明提供一种具有谷值电压检测器的开关控制电路，以实现软开关并提高功率转换器的效率。 开关控制电路包括耦合到反馈信号的控制电路以产生开关信号。 通过输出电路，开关信号驱动用于切换变压器并调节功率转换器的输出的开关装置。 谷值电压检测器耦合到变压器的辅助绕组，以响应于变压器的电压产生控制信号。 控制信号用于启用切换信号。 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。