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公开(公告)号：US06940338B2
公开(公告)日：2005-09-06
申请号：US10706664
申请日：2003-11-12
申请人： Yoshihiro Kizaki , Osamu Kudo , Shinya Udo , Toshihiko Kasai
发明人： Yoshihiro Kizaki , Osamu Kudo , Shinya Udo , Toshihiko Kasai
CPC分类号： G05F3/30
摘要： A bias circuit generates a first voltage at a first node. A second current source generates, according to the first voltage, a power supply current to be supplied to an internal circuit including transistors. A correcting transistor in a correcting circuit supplies the first node with a correcting current generated according to a constant voltage. Because of this, the first voltage is adjusted according to the correcting current. Therefore, the operating speed of the internal circuit is prevented from changing, being dependent on the variation of the threshold voltage and temperature variation of a transistor. As a result, the yield can be improved, independently of the variation of the threshold voltage among semiconductor integrated circuit chips, which occurs in a fabrication process. Further, temperature dependency of the operating speed of the internal circuit can be reduced, which can improve the yield of the semiconductor integrated circuit.
摘要翻译： 偏置电路在第一节点处产生第一电压。 第二电流源根据第一电压产生要提供给包括晶体管的内部电路的电源电流。 校正电路中的校正晶体管向第一节点提供根据恒定电压产生的校正电流。 因此，根据校正电流来调整第一电压。 因此，防止内部电路的工作速度发生变化，这取决于晶体管的阈值电压和温度变化的变化。 结果，与制造过程中发生的半导体集成电路芯片之间的阈值电压的变化无关，可以提高产量。 此外，可以降低内部电路的工作速度的温度依赖性，这可以提高半导体集成电路的产量。
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公开(公告)号：US07081792B2
公开(公告)日：2006-07-25
申请号：US10811431
申请日：2004-03-29
IPC分类号： H03F1/02
CPC分类号： H03F3/45753 , G09G3/3688
摘要： An operational amplifier capable of offset cancel in a shorter period, as well as a line driver capable of shortening one horizontal period and a liquid crystal display device are provided. In the operational amplifier of the invention, a time necessary for feed back control can be shortened than usual by a constitution that an output voltage VO in one horizontal period H1 which is one horizontal period before is defined as a reference voltage in an offset cancel preparatory period HC2, thereby changing the output voltage VO(2) only by the offset voltage VO(2) by the feed back control. In the line driver of the invention, the operational amplifier not used for the output of display data D1 to D6 conducts offset cancel operation and it is successively shifted on every one horizontal period. Since it is no more necessary to incorporate the offset cancel preparatory period in the output period, one horizontal period can be shortened further.
摘要翻译： 提供能够在较短时间内抵消抵消的运算放大器以及能够缩短一个水平周期的线路驱动器和液晶显示装置。 在本发明的运算放大器中，通过将一个水平周期的一个水平周期H 1的输出电压VO定义为偏移消除中的基准电压的结构，可以缩短反馈控制所需的时间 准备期间HC 2，从而仅通过反馈控制将偏置电压VO（2）改变输出电压VO（2）。 在本发明的线驱动器中，未用于显示数据D 1至D 6的输出的运算放大器进行偏移消除操作，并且在每一个水平周期上依次移位。 由于不需要在偏移消除准备期间中包含输出期间，所以可以进一步缩短一个水平周期。
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公开(公告)号：US07336124B2
公开(公告)日：2008-02-26
申请号：US11448669
申请日：2006-06-08
IPC分类号： H03F1/02
CPC分类号： H03F3/45753 , G09G3/3688
摘要： An operational amplifier capable of offset cancel in a shorter period, as well as a line driver capable of shortening one horizontal period and a liquid crystal display device are provided. In the operational amplifier of the invention, a time necessary for feed back control can be shortened than usual by a constitution that an output voltage VO in one horizontal period H1 which is one horizontal period before is defined as a reference voltage in an offset cancel preparatory period HC2, thereby changing the output voltage VO(2) only by the offset voltage VO(2) by the feed back control. In the line driver of the invention, the operational amplifier not used for the output of display data D1 to D6 conducts offset cancel operation and it is successively shifted on every one horizontal period. Since it is no more necessary to incorporate the offset cancel preparatory period in the output period, one horizontal period can be shortened further.
摘要翻译： 提供能够在较短时间内抵消抵消的运算放大器以及能够缩短一个水平周期的线路驱动器和液晶显示装置。 在本发明的运算放大器中，通过将一个水平周期的一个水平周期H 1的输出电压VO定义为偏移消除中的基准电压的结构，可以缩短反馈控制所需的时间 准备期间HC 2，从而仅通过反馈控制将偏置电压VO（2）改变输出电压VO（2）。 在本发明的线驱动器中，未用于显示数据D 1至D 6的输出的运算放大器进行偏移消除操作，并且在每一个水平周期上依次移位。 由于不需要在偏移消除准备期间中包含输出期间，所以可以进一步缩短一个水平周期。
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公开(公告)号：US07880537B2
公开(公告)日：2011-02-01
申请号：US12000995
申请日：2007-12-19
IPC分类号： H03F1/02
CPC分类号： H03F3/45753 , G09G3/3688
摘要： An operational amplifier capable of offset cancel in a shorter period, as well as a line driver capable of shortening one horizontal period and a liquid crystal display device are provided. In the operational amplifier of the invention, a time necessary for feed back control can be shortened than usual by a constitution that an output voltage VO in one horizontal period H1 which is one horizontal period before is defined as a reference voltage in an offset cancel preparatory period HC2, thereby changing the output voltage VO(2) only by the offset voltage VO(2) by the feed back control. In the line driver of the invention, the operational amplifier not used for the output of display data D1 to D6 conducts offset cancel operation and it is successively shifted on every one horizontal period. Since it is no more necessary to incorporate the offset cancel preparatory period in the output period, one horizontal period can be shortened further.
摘要翻译： 提供能够在较短时间内抵消抵消的运算放大器以及能够缩短一个水平周期的线路驱动器和液晶显示装置。 在本发明的运算放大器中，通过将一个水平周期的一个水平周期H1的输出电压VO定义为偏移消除准备中的基准电压的结构，可以缩短反馈控制所需的时间 从而通过反馈控制仅偏移电压VO（2）来改变输出电压VO（2）。 在本发明的线路驱动器中，未用于显示数据D1至D6的输出的运算放大器进行偏移消除操作，并且每隔一个水平周期依次移位。 由于不需要在偏移消除准备期间中包含输出期间，所以可以进一步缩短一个水平周期。
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公开(公告)号：US20060226899A1
公开(公告)日：2006-10-12
申请号：US11448669
申请日：2006-06-08
IPC分类号： H03F1/02
CPC分类号： H03F3/45753 , G09G3/3688
摘要： An operational amplifier capable of offset cancel in a shorter period, as well as a line driver capable of shortening one horizontal period and a liquid crystal display device are provided. In the operational amplifier of the invention, a time necessary for feed back control can be shortened than usual by a constitution that an output voltage VO in one horizontal period H1 which is one horizontal period before is defined as a reference voltage in an offset cancel preparatory period HC2, thereby changing the output voltage VO(2) only by the offset voltage VO(2) by the feed back control. In the line driver of the invention, the operational amplifier not used for the output of display data D1 to D6 conducts offset cancel operation and it is successively shifted on every one horizontal period. Since it is no more necessary to incorporate the offset cancel preparatory period in the output period, one horizontal period can be shortened further.
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公开(公告)号：US20080252369A1
公开(公告)日：2008-10-16
申请号：US12000995
申请日：2007-12-19
IPC分类号： H03F1/30
CPC分类号： H03F3/45753 , G09G3/3688
摘要： An operational amplifier capable of offset cancel in a shorter period, as well as a line driver capable of shortening one horizontal period and a liquid crystal display device are provided. In the operational amplifier of the invention, a time necessary for feed back control can be shortened than usual by a constitution that an output voltage VO in one horizontal period H1 which is one horizontal period before is defined as a reference voltage in an offset cancel preparatory period HC2, thereby changing the output voltage VO(2) only by the offset voltage VO(2) by the feed back control. In the line driver of the invention, the operational amplifier not used for the output of display data D1 to D6 conducts offset cancel operation and it is successively shifted on every one horizontal period. Since it is no more necessary to incorporate the offset cancel preparatory period in the output period, one horizontal period can be shortened further.
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公开(公告)号：US20050077957A1
公开(公告)日：2005-04-14
申请号：US10811431
申请日：2004-03-29
CPC分类号： H03F3/45753 , G09G3/3688
摘要： An operational amplifier capable of offset cancel in a shorter period, as well as a line driver capable of shortening one horizontal period and a liquid crystal display device are provided. In the operational amplifier of the invention, a time necessary for feed back control can be shortened than usual by a constitution that an output voltage VO in one horizontal period H1 which is one horizontal period before is defined as a reference voltage in an offset cancel preparatory period HC2, thereby changing the output voltage VO(2) only by the offset voltage VO(2) by the feed back control. In the line driver of the invention, the operational amplifier not used for the output of display data D1 to D6 conducts offset cancel operation and it is successively shifted on every one horizontal period. Since it is no more necessary to incorporate the offset cancel preparatory period in the output period, one horizontal period can be shortened further.
摘要翻译： 提供能够在较短时间内抵消抵消的运算放大器以及能够缩短一个水平周期的线路驱动器和液晶显示装置。 在本发明的运算放大器中，通过将一个水平周期的一个水平周期H1的输出电压VO定义为偏移消除准备中的基准电压的结构，可以缩短反馈控制所需的时间 从而通过反馈控制仅偏移电压VO（2）来改变输出电压VO（2）。 在本发明的线路驱动器中，未用于显示数据D1至D6的输出的运算放大器进行偏移消除操作，并且每隔一个水平周期依次移位。 由于不需要在偏移消除准备期间中包含输出期间，所以可以进一步缩短一个水平周期。
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8.发明授权DC-DC converter with step-up and step-down control capable of varying the offset voltage of the PWM triangle 有权具有升压和降压控制的DC-DC转换器，能够改变PWM三角形的偏移电压公开(公告)号：US07443147B2
公开(公告)日：2008-10-28
申请号：US11131245
申请日：2005-05-18
申请人： Toshihiko Kasai , Yoshihiro Kizaki , Hidenobu Ito
发明人： Toshihiko Kasai , Yoshihiro Kizaki , Hidenobu Ito
CPC分类号： H02M3/1582 , H02M2001/0025
摘要： When both step-up PWM control and step-down PWM controls are executed, the offset of the ON/OFF switching timing for step-up PWM control and/or the offset of ON/OFF switching timing for step-down PWM control are changed to become identical. By synchronizing ON/OFF switching timing for step-up PWM control and ON/OFF switching timing for step-down PWM control, the loss on switching can be reduced.
摘要翻译： 当执行升压PWM控制和降压PWM控制时，升压PWM控制的ON / OFF开关定时偏移量和/或降压PWM控制的ON / OFF开关时序偏移量都会发生变化 变得相同。 通过同步升压PWM控制的ON / OFF开关定时和降压PWM控制的ON / OFF切换定时，可以减少开关损耗。
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9.发明申请DC-DC converter, DC-DC converter control apparatus, power supply apparatus, electronic equipment and control method for DC-DC converter 有权DC-DC转换器，DC-DC转换器控制装置，电源装置，DC-DC转换器的电子设备及控制方法公开(公告)号：US20060198170A1
公开(公告)日：2006-09-07
申请号：US11131245
申请日：2005-05-18
申请人： Toshihiko Kasai , Yoshihiro Kizaki , Hidenobu Ito
发明人： Toshihiko Kasai , Yoshihiro Kizaki , Hidenobu Ito
IPC分类号： H02M1/12
CPC分类号： H02M3/1582 , H02M2001/0025
摘要： When both of step-up PWM control and step-down PWM control are executed, offset of ON/OFF switching timing for step-up PWM control and/or offset of ON/OFF switching timing for step-down PWM control is changed so that the offset of ON/OFF switching timing for step-up PWM control and the offset of ON/OFF switching timing for step-down PWM control become identical. By synchronizing ON/OFF switching timing for step-up PWM control and ON/OFF switching timing for step-down PWM control, the loss on switching can be reduced.
摘要翻译： 当执行升压PWM控制和降压PWM控制时，升压PWM控制的升压PWM控制的ON / OFF开关定时偏移和/或降压PWM控制的ON / OFF开关定时偏移改变，使得 升压PWM控制的ON / OFF切换定时的偏移和降压PWM控制的ON / OFF切换时序的偏移变得相同。 通过同步升压PWM控制的ON / OFF开关定时和降压PWM控制的ON / OFF切换定时，可以减少开关损耗。
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公开(公告)号：US06608525B2
公开(公告)日：2003-08-19
申请号：US10096862
申请日：2002-03-14
申请人： Yoshihiro Kizaki
发明人： Yoshihiro Kizaki
IPC分类号： H03F345
CPC分类号： H03F3/45757 , H03H11/0444
摘要： The operational transconductance amplifier comprises a MOS field-effective transistor that controls the mutual conductance. The central voltage measurement circuit and the voltage addition circuit shift a gate voltage of the MOS field-effective transistor by an amount equal to the deviation of a source voltage of the MOS field-effective transistor caused by an input offset voltage Voff.
摘要翻译： 运算跨导放大器包括控制互导的MOS场效应晶体管。 中心电压测量电路和电压相加电路将MOS场效应晶体管的栅极电压移动量等于由输入偏移电压Voff引起的MOS场效应晶体管的源极电压的偏差。
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