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11. 发明申请

US20120235653A1 Zero Current Detecting Circuit and Related Synchronous Switching Power Converter 有权
标题翻译：零电流检测电路和相关同步开关电源转换器
公开(公告)号：US20120235653A1
公开(公告)日：2012-09-20
申请号：US13204722
申请日：2011-08-08
申请人： Ke-Horng Chen , Tzu-Yang Yen
发明人： Ke-Horng Chen , Tzu-Yang Yen
IPC分类号： G05F1/10
CPC分类号： H02M3/1588 , H02M2001/0058 , Y02B70/1466 , Y02B70/1491
摘要： A zero current detecting circuit is disclosed. The zero current detecting circuit includes a first zero current comparator for determining current variation on an inductor of a synchronous switching power converter so as to accordingly turn off a down-bridge transistor of the synchronous power converter; a second zero current comparator for determining whether the first zero current comparator turns off the down-bridge transistor too early or too late and outputting a comparison result, and a counter coupled to the second zero current comparator for ascending or descending a control bit according to the comparison result.
摘要翻译：公开了零电流检测电路。零电流检测电路包括：第一零电流比较器，用于确定同步开关功率转换器的电感器上的电流变化，从而相应地关断同步功率转换器的下桥晶体管; 第二零电流比较器，用于确定第一零电流比较器是否过早关断下桥式晶体管，并输出比较结果，以及耦合到第二零电流比较器的计数器，用于根据控制位的上升或下降比较结果。

12. 发明授权

US08232743B2 Voltage converter and driving method for use in a backlight module 有权
标题翻译：用于背光模块的电压转换器和驱动方法
公开(公告)号：US08232743B2
公开(公告)日：2012-07-31
申请号：US12831231
申请日：2010-07-06
申请人： Ke-Horng Chen , Chi-Lin Chen , Yao-Yi Yang , Ling Li , Chia-Lin Liu , Chi-Neng Mo
发明人： Ke-Horng Chen , Chi-Lin Chen , Yao-Yi Yang , Ling Li , Chia-Lin Liu , Chi-Neng Mo
IPC分类号： H05B37/02
CPC分类号： H05B33/0818 , H05B33/0815
摘要： A voltage converter for use in a backlight module stores energy of an input voltage using an inductor and outputs a plurality of output voltages accordingly. The charging path of the inductor is controlled according to the first output voltage so that the first output voltage can be stabilized. The discharging paths from the inductor to other output voltages are controlled according to the differences between other output voltages and the first output voltage so that other output voltages can also be stabilized.
摘要翻译：用于背光模块的电压转换器使用电感器存储输入电压的能量并相应地输出多个输出电压。根据第一输出电压来控制电感器的充电路径，使得第一输出电压可以稳定。根据其他输出电压和第一输出电压之间的差异，从电感器到其他输出电压的放电路径进行控制，以便其他输出电压也可以稳定。

13. 发明申请

US20120105506A1 METHOD FOR DRIVING A DISPLAY 有权
标题翻译：驱动显示器的方法
公开(公告)号：US20120105506A1
公开(公告)日：2012-05-03
申请号：US13347714
申请日：2012-01-11
申请人： Ke-Horng Chen , Chun-Ho Chen , Shian-Jun Chiou , Han-Ping Shieh , Ti-Ti Liu
发明人： Ke-Horng Chen , Chun-Ho Chen , Shian-Jun Chiou , Han-Ping Shieh , Ti-Ti Liu
IPC分类号： G09G5/10 , G09G3/36
CPC分类号： G09G3/3413 , G09G3/3426 , G09G2310/0235 , G09G2310/024 , G09G2310/061 , G09G2320/0242
摘要： A method for driving a display is provided. According to the driving method, a display panel is divided into a plurality of bright regions and a plurality of dark regions, wherein the dark regions and the bright regions are alternately arranged so that the bright regions within the display panel are not adjacent to each other. Next, a full-color frame is divided into four sub-frames, wherein the sub-frames are matched with the four color-orders one by one. In this way, the display randomly displays the sub-frames in a frame period.
摘要翻译：提供了一种用于驱动显示器的方法。根据驱动方法，显示面板被分成多个亮区域和多个暗区域，其中暗区域和亮区域交替布置，使得显示面板内的亮区域彼此不相邻。接下来，将全色帧分成四个子帧，其中子帧与四个颜色顺序一个一个地匹配。以这种方式，显示器在帧周期中随机地显示子帧。

14. 发明授权

US08120628B2 Method for driving a display 有权
标题翻译：驱动显示器的方法
公开(公告)号：US08120628B2
公开(公告)日：2012-02-21
申请号：US12050961
申请日：2008-03-19
申请人： Ke-Horng Chen , Chun-Ho Chen , Shian-Jun Chiou , Han-Ping Shieh , Ti-Ti Liu
发明人： Ke-Horng Chen , Chun-Ho Chen , Shian-Jun Chiou , Han-Ping Shieh , Ti-Ti Liu
IPC分类号： G09G5/10
CPC分类号： G09G3/3413 , G09G3/3426 , G09G2310/0235 , G09G2310/024 , G09G2310/061 , G09G2320/0242
摘要： A method for driving a display is provided. According to the driving method, a display panel is divided into a plurality of bright regions and a plurality of dark regions, wherein the dark regions and the bright regions are alternately arranged so that the bright regions within the display panel are not adjacent to each other. Next, a full-color frame is divided into four sub-frames, wherein the sub-frames are matched with the four color-orders one by one. In this way, the display randomly displays the sub-frames in a frame period.
摘要翻译：提供了一种用于驱动显示器的方法。根据驱动方法，显示面板被分成多个亮区域和多个暗区域，其中暗区域和亮区域交替布置，使得显示面板内的亮区域彼此不相邻。接下来，将全色帧分成四个子帧，其中子帧与四个颜色顺序一个一个地匹配。以这种方式，显示器在帧周期中随机地显示子帧。

15. 发明授权

US07843177B2 Control circuit and method for maintaining high efficiency in switching regulator 有权
标题翻译：用于保持开关稳压器高效率的控制电路和方法
公开(公告)号：US07843177B2
公开(公告)日：2010-11-30
申请号：US11930177
申请日：2007-10-31
申请人： Hsin-Hsin Ho , Ke-Horng Chen , Tzong-Honge Shieh
发明人： Hsin-Hsin Ho , Ke-Horng Chen , Tzong-Honge Shieh
IPC分类号： G05F1/652
CPC分类号： H02M3/1582
摘要： A high efficiency control circuit for operating a switching regulator is provided. The switching regulator can regulate an output voltage no matter the input voltage is higher, lower, or close to the output voltage. The switching regulator has first, second, third and fourth switches. The control circuit can operate the switching regulator in buck mode, boost mode, or buck-boost mode. In a buck-boost mode, the control logic drives the four switches in an efficiency sequence for reducing energy consumption during the switch transition, on the other side, resistive loss owing to the energy transfer phase is also minimized. Furthermore, the invention is capable of control duty cycle limitation to fit the consideration of the linearity of the converter.
摘要翻译：提供了一种用于操作开关调节器的高效率控制电路。开关稳压器可以调节输出电压，无论输入电压是高，低还是接近输出电压。开关调节器具有第一，第二，第三和第四开关。控制电路可以在降压模式，升压模式或降压 - 升压模式下操作开关稳压器。在降压 - 升压模式下，控制逻辑以效率序列驱动四个开关，以减少开关转换期间的能量消耗，另一方面，由于能量转移相位的电阻损耗也被最小化。此外，本发明能够控制占空比限制以适应转换器线性度的考虑。

16. 发明申请

US20100231272A1 BUCK-BOOST POWER CONVERTER WITH FEED-FORWARD TECHNIQUE FOR ACHIEVING FAST LINE RESPONSE 有权
标题翻译： BUCK-BOOST功率转换器，具有用于实现快速响应的前馈技术
公开(公告)号：US20100231272A1
公开(公告)日：2010-09-16
申请号：US12720022
申请日：2010-03-09
申请人： KE-HORNG CHEN , PIN-CHIN HUANG , HSIN-HSIN HO
发明人： KE-HORNG CHEN , PIN-CHIN HUANG , HSIN-HSIN HO
IPC分类号： H03K4/50
CPC分类号： H03K4/50 , H02M3/1582
摘要： A buck-boost power converter includes a power stage to convert an input voltage to an output voltage, an error amplifier to generate an error signal according to a reference voltage and a feedback signal proportional to the output voltage, a ramp generator to provide two ramp signals, and two comparators to generate two control signals according to the error signal and the two ramp signals to drive the power stage. By using feed-forward technique, one of the two ramp signals has a peak varying with the input voltage and the other ramp signal has a valley varying with the input voltage, so that the power converter has fast line response.
摘要翻译：降压 - 升压功率转换器包括将输入电压转换为输出电压的功率级，误差放大器，以根据参考电压和与输出电压成正比的反馈信号产生误差信号;斜坡发生器，提供两个斜坡信号和两个比较器根据误差信号和两个斜坡信号产生两个控制信号来驱动功率级。通过使用前馈技术，两个斜坡信号之一具有随着输入电压而变化的峰值，另一个斜坡信号具有随输入电压变化的谷值，使得功率转换器具有快速的线路响应。

17. 发明授权

US07795754B2 Slope control device capable of predicting uniform-current-sharing level and method thereof 有权
标题翻译：能够预测均匀电流共享电平的斜率控制装置及其方法
公开(公告)号：US07795754B2
公开(公告)日：2010-09-14
申请号：US12071956
申请日：2008-02-28
申请人： Hsin-Hsin Ho , Ke-Horng Chen , Chun-Yu Hsieh
发明人： Hsin-Hsin Ho , Ke-Horng Chen , Chun-Yu Hsieh
IPC分类号： H02J3/46
CPC分类号： H02M3/1584 , Y10T307/352 , Y10T307/549 , Y10T307/555
摘要： The present invention discloses a slope control device capable of predicting uniform-current-sharing level and method thereof which can be applied in a redundancy or distributed power system for providing better uniform-current-sharing ability. The device comprises a high linearity transconductor circuit, a slope adjusting circuit and an incremental output voltage circuit. The invention applies either a transconductor parameter or a feedback resistor to increase the droop gain and therefore the current deviation between two power supply modules is reduced. The invention further raises the output voltage step by step to ensure that the output voltage meet the requirement of allowable minimum output voltage according to increment of load current.
摘要翻译：本发明公开了一种能够预测均匀电流共享水平的斜率控制装置及其方法，其可以应用于冗余或分布式电力系统中，以提供更好的均匀电流共享能力。该器件包括高线性跨导电路，斜率调整电路和增量输出电压电路。本发明应用跨导参数或反馈电阻来增加下垂增益，因此减小了两个电源模块之间的电流偏差。本发明进一步提高输出电压，以确保输出电压满足容许最小输出电压的要求，根据负载电流的增加。

18. 发明申请

US20100214201A1 ADAPTIVE FEEDBACK CONTROL METHOD OF FSC DISPLAY 有权
标题翻译： FSC显示的自适应反馈控制方法
公开(公告)号：US20100214201A1
公开(公告)日：2010-08-26
申请号：US12391804
申请日：2009-02-24
申请人： CHUN-HO CHEN , YI-PAI HUANG , KE-HORNG CHEN , FANG-CHENG LIN , HAN-PING SHIEH , CHI-CHUNG TSAI
发明人： CHUN-HO CHEN , YI-PAI HUANG , KE-HORNG CHEN , FANG-CHENG LIN , HAN-PING SHIEH , CHI-CHUNG TSAI
IPC分类号： G09G3/36
CPC分类号： G09G3/3611 , G09G3/2003 , G09G3/2022 , G09G2310/0235 , G09G2320/0242
摘要： An adaptive feedback control method of a field sequential color display includes: a rearrangement step of converting gray-scale values of a three primary color field of an input image into gray-scale values of a new three primary color field and a dominated color field; a sampling step of performing a pixel sampling on a resolution of the input image in a sampling interval; a feedback control step of performing a pixel by pixel sum operation for each separated color on a color break-up value and a color value of the input image in a Lu′v′ color space to obtain a color difference sum, and performing a feedback control at a bit precision on the color difference sum; and a liquid crystal/backlight synchronization step of synchronizing a liquid crystal signal and a backlight grayscale value of the input image according to the minimum color difference sum.
摘要翻译：场顺序彩色显示器的自适应反馈控制方法包括：将输入图像的三原色灰度值转换为新的三原色场和主导色域的灰度值的重排步骤; 对采样间隔内的输入图像的分辨率进行像素采样的采样步骤; 反馈控制步骤，对于Lu'v'颜色空间中的颜色分解值和输入图像的颜色值，对于每个分离的颜色执行逐像素求和以获得色差和，并且执行反馈控制在一定精度上的色差和; 以及液晶/背光同步步骤，用于根据最小色差和来同步输入图像的液晶信号和背光灰度值。

19. 发明申请

US20100127670A1 BATTERY CHARGING SYSTEM HAVING HIGH CHARGE RATE 审中-公开
标题翻译：具有高充电率的电池充电系统
公开(公告)号：US20100127670A1
公开(公告)日：2010-05-27
申请号：US12275837
申请日：2008-11-21
申请人： Ke-Horng Chen , Hong-Wei Huang , Chia-Hsiang Lin , Hsing-Yi Chen
发明人： Ke-Horng Chen , Hong-Wei Huang , Chia-Hsiang Lin , Hsing-Yi Chen
IPC分类号： H02J7/06
CPC分类号： H02J7/0081 , G01R31/389
摘要： A charger including a regulator, a controller and a compensation-adjusting unit for accurately charging to a battery device is provided. The regulator provides a charging current to the battery device. The controller is coupled to the regulator for controlling the charging current. The compensation-adjusting unit is coupled to the regulator and the battery device for receiving a first reference voltage. In a first operation mode, the compensation-adjusting unit outputs the first reference voltage to the regulator. In a second operation mode, the controller instructs the regulator to transiently generate a first charging current and a second charging current. Responsive to the first and the second charging currents, the output voltage of the battery device presents a first output voltage and a second output voltage. The compensation-adjusting unit pre-estimates a parasitic resistance of the battery device by detecting the first and the second output voltage, thus compensating the first reference voltage.
摘要翻译：提供一种包括调节器，控制器和用于对电池装置进行精确充电的补偿调节单元的充电器。调节器向电池装置提供充电电流。控制器耦合到调节器以控制充电电流。补偿调节单元耦合到调节器和电池装置，用于接收第一参考电压。在第一操作模式中，补偿调整单元将第一参考电压输出到调节器。在第二操作模式中，控制器指示调节器暂时产生第一充电电流和第二充电电流。响应于第一和第二充电电流，电池装置的输出电压呈现第一输出电压和第二输出电压。补偿调整单元通过检测第一和第二输出电压来预测电池装置的寄生电阻，从而补偿第一参考电压。

20. 发明申请

US20080309302A1 DC-DC CONVERTER 审中-公开
标题翻译： DC-DC转换器
公开(公告)号：US20080309302A1
公开(公告)日：2008-12-18
申请号：US11965512
申请日：2007-12-27
申请人： Ke-Horng Chen , Hong-Wei Huang , Sy-Yen Kuo , Chi-Chen Chung
发明人： Ke-Horng Chen , Hong-Wei Huang , Sy-Yen Kuo , Chi-Chen Chung
IPC分类号： G05F1/00
CPC分类号： H02M1/38 , H02M3/1588 , Y02B70/1466
摘要： The invention discloses DC-DC converters comprising an inductance, a pulse width modulator generating a pulse signal according to the voltage level of a transformed voltage output terminal, a load sensor sensing a load current, an adaptive enable signal generator generating a PMOS transistor enable signal and an NMOS transistor enable signal based on the pulse signal and the load current, and a power transistor set comprising at least one PMOS transistor and an NMOS transistor. The power transistor set is used in coupling the transformed voltage output terminal to an original DC voltage source or ground via the inductance. The conductance of the PMOS and NMOS transistors are controlled by the PMOS and NMOS transistor enable signals, respectively. The adaptive enable signal generator makes a first dead-time between the PMOS and NMOS transistor enable signals decreasing with increasing load current.
摘要翻译：本发明公开了一种DC-DC转换器，包括电感，根据变换电压输出端的电压电平产生脉冲信号的脉冲宽度调制器，感测负载电流的负载传感器，产生PMOS晶体管使能信号的自适应使能信号发生器以及基于脉冲信号和负载电流的NMOS晶体管使能信号，以及包括至少一个PMOS晶体管和NMOS晶体管的功率晶体管组。功率晶体管组用于通过电感将变压电压输出端子耦合到原始的直流电压源或接地。 PMOS和NMOS晶体管的电导分别由PMOS和NMOS晶体管使能信号控制。自适应使能信号发生器使PMOS和NMOS晶体管使能信号之间的第一个死区时间随着负载电流的增加而减小。

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