公开(公告)号：US20110254468A1

公开(公告)日：2011-10-20

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。

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。

公开(公告)号：US20100265271A1

公开(公告)日：2010-10-21

申请号：US12497542

申请日：2009-07-02

申请人： Shih-Meng Chang ,  Chia-Lin Liu ,  Chi-Neng Mo ,  Ke-Horng Chen ,  Chi-Lin Chen

发明人： Shih-Meng Chang ,  Chia-Lin Liu ,  Chi-Neng Mo ,  Ke-Horng Chen ,  Chi-Lin Chen

IPC分类号： G09G5/10

CPC分类号： H05B33/0818

摘要： A driving circuit of a backlight module is provided. The driving circuit has a dimming unit used for transmitting signals, wherein the dimming unit can adjust a current flowing through a light-emitting diode (LED) according a pulse width modulation signal and an enable signal, so as to adjust a light-emitting intensity of the LED. In the present invention, fewer devices are used to implement the dimming unit, and a transmission gate is replaced by a N-type transistor and a P-type transistor, such that a chip area and a circuit cost of the driving circuit are reduced.

摘要翻译： 提供背光模块的驱动电路。 驱动电路具有用于发送信号的调光单元，其中调光单元可以根据脉宽调制信号和使能信号来调节流过发光二极管（LED）的电流，以便调节发光强度 的LED。 在本发明中，使用较少的器件来实现调光单元，并且传输门被N型晶体管和P型晶体管代替，使得驱动电路的芯片面积和电路成本降低。

公开(公告)号：US08259087B2

公开(公告)日：2012-09-04

申请号：US12755422

申请日：2010-04-07

申请人： Ke-Horng Chen ,  Chi-Lin Chen ,  Yi-Chun Chen ,  Chih-Chung Chen ,  Chia-Lin Liu ,  Huai-An Li ,  Chi-Neng Mo

发明人： Ke-Horng Chen ,  Chi-Lin Chen ,  Yi-Chun Chen ,  Chih-Chung Chen ,  Chia-Lin Liu ,  Huai-An Li ,  Chi-Neng Mo

IPC分类号： G06F3/045

CPC分类号： G06F3/044

摘要： In a capacitance sensing analog circuit of a touch panel sensing circuit, by raising a magnitude of a current flowing through a sensing capacitor to form an amplified sensing capacitance, while sensing the amplified sensing capacitance with the aid of pulse width modulation signals, higher resolution of the original sensing capacitance may thus be achieved. Besides, by using a self-calibrating capacitance sensing circuit on the touch panel sensing circuit, linear errors and DC errors of an output signal of the capacitance sensing analog circuit may be filtered off, and thereby resolution of a capacitance amplifying ratio may be effectively raised so as to relieve errors within the capacitance amplifying ratio caused by noises.

摘要翻译： 在触摸面板感测电路的电容感测模拟电路中，通过提高流经感测电容器的电流的大小以形成放大的感测电容，同时借助脉冲宽度调制信号感测放大的感测电容，更高的分辨率 因此可以实现原始感测电容。 此外，通过在触摸面板感测电路上使用自校准电容感测电路，可以滤除电容感测模拟电路的输出信号的线性误差和DC误差，从而可以有效地提高电容放大比的分辨率 以减轻由噪声引起的电容放大比例中的误差。

公开(公告)号：US08363033B2

公开(公告)日：2013-01-29

申请号：US12814497

申请日：2010-06-14

申请人： Ke-Horng Chen ,  Shih-Wei Wang ,  Chi-Lin Chen ,  Chih-Chung Chen ,  Chia-Lin Liu ,  Huai-An Li ,  Chi-Neng Mo

发明人： Ke-Horng Chen ,  Shih-Wei Wang ,  Chi-Lin Chen ,  Chih-Chung Chen ,  Chia-Lin Liu ,  Huai-An Li ,  Chi-Neng Mo

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。

公开(公告)号：US08077139B2

公开(公告)日：2011-12-13

申请号：US12497542

申请日：2009-07-02

申请人： Shih-Meng Chang ,  Chia-Lin Liu ,  Chi-Neng Mo ,  Ke-Horng Chen ,  Chi-Lin Chen

发明人： Shih-Meng Chang ,  Chia-Lin Liu ,  Chi-Neng Mo ,  Ke-Horng Chen ,  Chi-Lin Chen

IPC分类号： G09G3/36

CPC分类号： H05B33/0818

摘要： A driving circuit of a backlight module is provided. The driving circuit has a dimming unit used for transmitting signals, wherein the dimming unit can adjust a current flowing through a light-emitting diode (LED) according a pulse width modulation signal and an enable signal, so as to adjust a light-emitting intensity of the LED. In the present invention, fewer devices are used to implement the dimming unit, and a transmission gate is replaced by a N-type transistor and a P-type transistor, such that a chip area and a circuit cost of the driving circuit are reduced.

摘要翻译： 提供背光模块的驱动电路。 驱动电路具有用于发送信号的调光单元，其中调光单元可以根据脉宽调制信号和使能信号来调节流过发光二极管（LED）的电流，以便调节发光强度 的LED。 在本发明中，使用较少的器件来实现调光单元，并且传输门被N型晶体管和P型晶体管代替，使得驱动电路的芯片面积和电路成本降低。

公开(公告)号：US20110216031A1

公开(公告)日：2011-09-08

申请号：US12814497

申请日：2010-06-14

申请人： Ke-Horng Chen ,  Shih-Wei Wang ,  Chi-Lin Chen ,  Chih-Chung Chen ,  Chia-Lin Liu ,  Huai-An Li ,  Chi-Neng Mo

发明人： Ke-Horng Chen ,  Shih-Wei Wang ,  Chi-Lin Chen ,  Chih-Chung Chen ,  Chia-Lin Liu ,  Huai-An Li ,  Chi-Neng Mo

IPC分类号： G06F3/044

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。

公开(公告)号：US20110186359A1

公开(公告)日：2011-08-04

申请号：US12755422

申请日：2010-04-07

申请人： Ke-Horng Chen ,  Chi-Lin Chen ,  Yi-Chun Chen ,  Chih-Chung Chen ,  Chia-Lin Liu ,  Huai-An Li ,  Chi-Neng Mo

发明人： Ke-Horng Chen ,  Chi-Lin Chen ,  Yi-Chun Chen ,  Chih-Chung Chen ,  Chia-Lin Liu ,  Huai-An Li ,  Chi-Neng Mo

IPC分类号： G06F3/044

CPC分类号： G06F3/044

摘要： In a capacitance sensing analog circuit of a touch panel sensing circuit, by raising a magnitude of a current flowing through a sensing capacitor to form an amplified sensing capacitance, while sensing the amplified sensing capacitance with the aid of pulse width modulation signals, higher resolution of the original sensing capacitance may thus be achieved. Besides, by using a self-calibrating capacitance sensing circuit on the touch panel sensing circuit, linear errors and DC errors of an output signal of the capacitance sensing analog circuit may be filtered off, and thereby resolution of a capacitance amplifying ratio may be effectively raised so as to relieve errors within the capacitance amplifying ratio caused by noises.

摘要翻译： 在触摸面板感测电路的电容感测模拟电路中，通过提高流经感测电容器的电流的大小以形成放大的感测电容，同时借助脉冲宽度调制信号感测放大的感测电容，更高的分辨率 因此可以实现原始感测电容。 此外，通过在触摸面板感测电路上使用自校准电容感测电路，可以滤除电容感测模拟电路的输出信号的线性误差和DC误差，从而可以有效地提高电容放大比的分辨率 以减轻由噪声引起的电容放大比例中的误差。

公开(公告)号：US08148911B2

公开(公告)日：2012-04-03

申请号：US12432054

申请日：2009-04-29

申请人： Ke-Horng Chen ,  Chia-Lin Chiu ,  Ling Li ,  Chia-Lin Liu ,  Chi-Neng Mo

发明人： Ke-Horng Chen ,  Chia-Lin Chiu ,  Ling Li ,  Chia-Lin Liu ,  Chi-Neng Mo

IPC分类号： H05B41/16

CPC分类号： H05B33/0827

摘要： The present invention relates to a current-balance circuit and a backlight module having the same. The current balance circuit includes a current balance unit, a control unit, and a detection unit. The current balance unit is connected to a plurality of light units to regulate the current of the plurality of light units, independent from the effects of input voltage. The detection unit is connected to the plurality of light units and the current balance unit to detect the minimum operating voltage for the plurality of light units. The control unit, connected to the current balance unit, controls the operation of the plurality of light units.

摘要翻译： 本发明涉及一种电流平衡电路和具有该电流平衡电路的背光模块。 电流平衡电路包括电流平衡单元，控制单元和检测单元。 电流平衡单元连接到多个光单元，以独立于输入电压的影响来调节多个光单元的电流。 检测单元连接到多个光单元和电流平衡单元，以检测多个光单元的最小工作电压。 连接到当前平衡单元的控制单元控制多个光单元的操作。

公开(公告)号：US07888920B2

公开(公告)日：2011-02-15

申请号：US12357399

申请日：2009-01-22

申请人： Ke-Horng Chen ,  Chun-Yu Hsieh ,  Shih-Meng Chang ,  Chia-Lin Liu ,  Chi-Neng Mo

发明人： Ke-Horng Chen ,  Chun-Yu Hsieh ,  Shih-Meng Chang ,  Chia-Lin Liu ,  Chi-Neng Mo

IPC分类号： G05F1/00

CPC分类号： H02M3/158 ,  G09G3/3406 ,  H02M2001/007 ,  H05B33/0815 ,  H05B33/0827

摘要： A power supply device is disclosed in the present invention, which includes a DC-DC boost converter and a charge recycling circuit. The DC-DC boost converter is utilized for boosting an input voltage to generate an output voltage, and adjusting a voltage level of the output voltage according to a level switching signal. The charge recycling circuit is electrically connected to the DC-DC boost converter, and is utilized for generating a current path according to the level switching signal to recycle redundant charges from the DC-DC boost converter when the output voltage is switched from high to low and to return stored charges back to the DC-DC boost converter when the output voltage is switched from low to high, so as to accelerate voltage switching of the output voltage and to reduce power consumption of the DC-DC boost converter.

摘要翻译： 在本发明中公开了一种电源装置，其包括DC-DC升压转换器和充电回收电路。 DC-DC升压转换器用于升压输入电压以产生输出电压，并根据电平切换信号调整输出电压的电压电平。 电荷回收电路与DC-DC升压转换器电连接，并用于根据电平切换信号产生电流路径，以便在输出电压从高电平切换到低电平时从DC-DC升压转换器循环冗余电荷 并且当输出电压从低电平切换到高电平时，将存储的电荷返回到DC-DC升压转换器，以便加速输出电压的电压切换并降低DC-DC升压转换器的功耗。