Capacitance sensing circuit
    41.
    发明授权
    Capacitance sensing circuit 有权
    电容感应电路

    公开(公告)号:US08363033B2

    公开(公告)日:2013-01-29

    申请号:US12814497

    申请日:2010-06-14

    IPC分类号: G06F3/045

    CPC分类号: G06F3/044

    摘要: A capacitance sensing circuit for a touch panel includes an analog capacitance-detecting circuit, a PWM-to-digital circuit and a self-calibration circuit. The analog capacitance-detecting circuit detects the capacitance of the touch panel based on a charging current, and converts the detected capacitance into a PWM control signal. The PWM-to-digital circuit converts the PWM control signal into a sensing count value based on a clock signal. The self-calibration circuit adjusts the value of the charging current or the frequency of the clock signal according to the difference between the range of the sensing count value and a predetermined detecting range. The predetermined detecting range can thus be adjusted for matching the range of the sensing count value.

    摘要翻译: 用于触摸屏的电容感测电路包括模拟电容检测电路,PWM到数字电路和自校准电路。 模拟电容检测电路基于充电电流检测触摸面板的电容,并将检测到的电容转换为PWM控制信号。 PWM到数字电路基于时钟信号将PWM控制信号转换成感测计数值。 自校准电路根据感测计数值的范围与规定的检测范围的差来调整充电电流的值或时钟信号的频率。 因此可以调整预定的检测范围,以匹配感测计数值的范围。

    Method for driving a display
    42.
    发明授权
    Method for driving a display 有权
    驱动显示器的方法

    公开(公告)号:US08289351B2

    公开(公告)日:2012-10-16

    申请号:US13347714

    申请日:2012-01-11

    IPC分类号: G09G5/10

    摘要: A method for driving a display includes following steps. 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: 用于驱动显示器的方法包括以下步骤。 显示面板被分为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。

    Zero Current Detecting Circuit and Related Synchronous Switching Power Converter
    43.
    发明申请
    Zero Current Detecting Circuit and Related Synchronous Switching Power Converter 有权
    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

    IPC分类号: G05F1/10

    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。

    Voltage converter and driving method for use in a backlight module
    44.
    发明授权
    Voltage converter and driving method for use in a backlight module 有权
    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

    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。

    METHOD FOR DRIVING A DISPLAY
    45.
    发明申请
    METHOD FOR DRIVING A DISPLAY 有权
    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

    IPC分类号: G09G5/10 G09G3/36

    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。

    Method for driving a display
    46.
    发明授权
    Method for driving a display 有权
    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

    IPC分类号: G09G5/10

    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。

    BATTERY CHARGING SYSTEM HAVING HIGH CHARGE RATE
    47.
    发明申请
    BATTERY CHARGING SYSTEM HAVING HIGH CHARGE RATE 审中-公开
    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

    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。

    DC-DC CONVERTER
    48.
    发明申请
    DC-DC CONVERTER 审中-公开
    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

    IPC分类号: G05F1/00

    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。

    Power supply apparatus
    50.
    发明申请
    Power supply apparatus 有权
    电源设备

    公开(公告)号:US20070257647A1

    公开(公告)日:2007-11-08

    申请号:US11444570

    申请日:2006-05-31

    IPC分类号: G05F1/00

    摘要: A power supply apparatus for supplying an output voltage to a load is provided, which comprises a power output unit, a feedback unit and a control unit. The power output unit adjusts and supplies the output voltage to the load in accordance with at least one driving signal. The feedback unit dynamically detects output condition of the power output unit and outputs the corresponding detection result. The control unit determines a skipping ratio for an internal clock in accordance with the detection result output from the feedback unit, and outputs the internal clock with a part of the pulses being skipped to act as the driving signal.

    摘要翻译: 提供一种用于向负载提供输出电压的电源装置,其包括功率输出单元,反馈单元和控制单元。 功率输出单元根据至少一个驱动信号调整并提供输出电压到负载。 反馈单元动态地检测功率输出单元的输出状态,并输出相应的检测结果。 控制单元根据从反馈单元输出的检测结果来确定内部时钟的跳跃比,并且输出具有被跳过的一部分脉冲的内部时钟作为驱动信号。