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1. 发明申请

WO2008024704A3 HYSTERESIS COMPARATOR WITH PROGRAMMABLE HYSTERESIS WIDTH 审中-公开
公开(公告)号：WO2008024704A3
公开(公告)日：2008-02-28
申请号：PCT/US2007/076297
申请日：2007-08-20
申请人： MICROCHIP TECHNOLOGY INCORPORATED , RAMAN, Murugesan
发明人： RAMAN, Murugesan
IPC分类号： H03K19/003
摘要： A digitally programmable hysteresis comparator a includes digitally programmable variable resistor. One or more control bits are operable to modify the resistance of the variable resistor, and such modification is operable to modify the hysteresis width of the comparator.

2. 发明申请

WO2008005984A2 LIQUID CRYSTAL DISPLAY BIAS GENERATOR 审中-公开
标题翻译：液晶显示偏置发生器
公开(公告)号：WO2008005984A2
公开(公告)日：2008-01-10
申请号：PCT/US2007/072750
申请日：2007-07-03
申请人： MICROCHIP TECHNOLOGY INCORPORATED , BARTLING, James, E. , ASIF, Iqbal , RAMAN, Murugesan
发明人： BARTLING, James, E. , ASIF, Iqbal , RAMAN, Murugesan
CPC分类号： G09G3/3696 , G09G2330/02 , H02M3/07 , H02M2001/009
摘要： A liquid crystal display (LCD) bias generator generates a plurality of bias voltages, e.g., four bias voltages, needed to drive a segmented LCD. The LCD bias generator has a voltage generator, e.g., charge pump, that may generate a most positive voltage, e.g., substantially equal to or more positive than VDD, on the integrated circuit that may also be used for maintaining proper reverse bias operation of well ties and analog switches of the integrated circuit. Other necessary LCD bias voltages, e.g., three voltages, may also be derived from the LCD bias generator to provide bias and contrast control voltages required by the LCD. Having a more positive bias voltage than the power supply voltage, VDD, allows VDD to cover a wider range of voltages, e.g., powered from a battery, by eliminating the need for complex analog switch and pad designs for the integrated circuit.
摘要翻译：液晶显示器（LCD）偏压发生器产生驱动分段LCD所需的多个偏压电压，例如四个偏压电压。 LCD偏压发生器具有电压发生器，例如电荷泵，其可以在集成电路上产生最大正电压，例如基本上等于或多于VDD的正电压，该电压还可以用于维持井的适当反向偏压操作集成电路的连接线和模拟开关。其他必要的LCD偏置电压，例如三个电压，也可以从LCD偏置发生器导出，以提供LCD所需的偏置和对比度控制电压。具有比电源电压VDD更高的正偏置电压，通过消除对集成电路的复杂模拟开关和焊盘设计的需要，VDD允许VDD覆盖更宽范围的电压，例如由电池供电。

3. 发明申请

WO2008024704A2 HYSTERESIS COMPARATOR WITH PROGRAMMABLE HYSTERESIS WIDTH 审中-公开
标题翻译：具有可编程迟滞宽度的迟滞比较器
公开(公告)号：WO2008024704A2
公开(公告)日：2008-02-28
申请号：PCT/US2007076297
申请日：2007-08-20
申请人： MICROCHIP TECH INC , RAMAN MURUGESAN
发明人： RAMAN MURUGESAN
CPC分类号： H03K3/0377
摘要： A digitally programmable hysteresis comparator a includes digitally programmable variable resistor. One or more control bits are operable to modify the resistance of the variable resistor, and such modification is operable to modify the hysteresis width of the comparator.
摘要翻译：数字可编程磁滞比较器a包括数字可编程可变电阻器。一个或多个控制位可操作以修改可变电阻器的电阻，并且这种修改可操作以修改比较器的滞后宽度。

4. 发明申请

WO2008005984A3 LIQUID CRYSTAL DISPLAY BIAS GENERATOR 审中-公开
标题翻译：液晶显示偏差发生器
公开(公告)号：WO2008005984A3
公开(公告)日：2008-03-13
申请号：PCT/US2007072750
申请日：2007-07-03
申请人： MICROCHIP TECH INC , BARTLING JAMES E , ASIF IQBAL , RAMAN MURUGESAN
发明人： BARTLING JAMES E , ASIF IQBAL , RAMAN MURUGESAN
IPC分类号： G09G3/36 , H02M3/07
CPC分类号： G09G3/3696 , G09G2330/02 , H02M3/07 , H02M2001/009
摘要： A liquid crystal display (LCD) bias generator generates a plurality of bias voltages, e.g., four bias voltages, needed to drive a segmented LCD. The LCD bias generator has a voltage generator, e.g., charge pump, that may generate a most positive voltage, e.g., substantially equal to or more positive than VDD, on the integrated circuit that may also be used for maintaining proper reverse bias operation of well ties and analog switches of the integrated circuit. Other necessary LCD bias voltages, e.g., three voltages, may also be derived from the LCD bias generator to provide bias and contrast control voltages required by the LCD. Having a more positive bias voltage than the power supply voltage, VDD, allows VDD to cover a wider range of voltages, e.g., powered from a battery, by eliminating the need for complex analog switch and pad designs for the integrated circuit.
摘要翻译：液晶显示器（LCD）偏压发生器产生驱动分段LCD所需的多个偏置电压，例如四个偏置电压。 LCD偏置发生器具有电压发生器，例如电荷泵，其可以在集成电路上产生最大正电压，例如基本上等于或大于VDD的正电压，其也可用于保持阱的适当的反向偏压操作系列和模拟开关的集成电路。也可以从LCD偏置发生器导出其它必需的LCD偏置电压，例如三个电压，以提供LCD所需的偏置和对比度控制电压。具有比电源电压VDD更正的偏置电压，VDD可以通过消除对集成电路的复杂模拟开关和焊盘设计的需要来覆盖更宽范围的电压，例如由电池供电。

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