公开(公告)号：US20050073358A1

公开(公告)日：2005-04-07

申请号：US10939369

申请日：2004-09-14

申请人： Yoshihiko Nakahira

发明人： Yoshihiko Nakahira

IPC分类号： G02F1/133 ,  G09G3/20 ,  G09G3/36 ,  H03F1/02 ,  H03F3/45

CPC分类号： H03F3/45775 ,  H03F3/4521 ,  H03F2203/45724

摘要： Even when an input is small in a current supply capacity, a differential amplifier circuit capable of outputting a high accurate voltage with an offset corrected can be obtained. In the differential amplifier having first and second input terminals and an output terminal, a control is made for switching between a first state wherein a first input terminal is taken as a non-inverting input terminal, and a second input terminal is taken as an inverting input terminal, and a second state wherein the first input terminal is taken as an inverting input terminal and the second input terminal is taken as a non-inverting input terminal, and further, a capacity element, one end of which is connected to a predetermine power source terminal, is provided, and moreover, a control is made such that the first input terminal is supplied with an input voltage, and the other end of the capacity is connected to the second input terminal and output terminal in the first state, and the first input terminal is connected to the output terminal, and the other end of the capacity is connected to the second input terminal in the second state. In this way, an offset detecting operation is performed in the first state, and an offset correcting operation is performed in the second state without the input voltage connected to the capacity.

摘要翻译： 即使当输入电流容量小时，也可以获得能够输出偏移校正的高精度电压的差分放大电路。 在具有第一和第二输入端子和输出端子的差分放大器中，进行控制以将第一输入端子作为非反相输入端子的第一状态和第二输入端子作为反相 输入端子和第二状态，其中将第一输入端子作为反相输入端子，将第二输入端子作为非反相输入端子，另外，电容元件的一端连接到预定值 电源端子，此外，进行控制，使得向第一输入端子提供输入电压，并且将容量的另一端连接到处于第一状态的第二输入端子和输出端子，以及 第一输入端子连接到输出端子，另一端在第二状态下连接到第二输入端子。 以这种方式，在第一状态下执行偏移检测操作，并且在第二状态下执行偏移校正操作，而没有连接到容量的输入电压。

公开(公告)号：US20090278868A1

公开(公告)日：2009-11-12

申请号：US12504981

申请日：2009-07-17

申请人： Yoshihiko NAKAHIRA ,  Hiroshi TSUCHI

发明人： Yoshihiko NAKAHIRA ,  Hiroshi TSUCHI

IPC分类号： G09G5/10

CPC分类号： G09G3/3696 ,  G09G3/3208 ,  G09G3/3225 ,  G09G3/3291 ,  G09G3/3648 ,  G09G2300/0842 ,  H03F3/45753 ,  H03F3/45977

摘要： To obtain an amplifier circuit capable of realizing low power consumption and high-precision output. A controlling unit controls each switch of an offset correction circuit to select one capacitor associated with a voltage level of an input signal selected by an input signal selection unit, have an offset voltage of an operational amplifier generated according to the voltage level of the input signal stored by the selected capacitor, and correct an output of the operational amplifier by using the offset voltage held by the selected capacitor.

摘要翻译： 获得能够实现低功耗和高精度输出的放大器电路。 控制单元控制偏移校正电路的每个开关以选择与由输入信号选择单元选择的输入信号的电压电平相关联的一个电容器，具有根据输入信号的电压电平产生的运算放大器的偏移电压 由所选择的电容器存储，并且通过使用由所选择的电容器保持的偏移电压来校正运算放大器的输出。

公开(公告)号：US20060098032A1

公开(公告)日：2006-05-11

申请号：US11294605

申请日：2005-12-06

申请人： Yoshihiko Nakahira ,  Hiroshi Tsuchi

发明人： Yoshihiko Nakahira ,  Hiroshi Tsuchi

IPC分类号： G09G5/10

CPC分类号： G09G3/3696 ,  G09G3/3208 ,  G09G3/3225 ,  G09G3/3291 ,  G09G3/3648 ,  G09G2300/0842 ,  H03F3/45753 ,  H03F3/45977

摘要： To obtain an amplifier circuit capable of realizing low power consumption and high-precision output. A controlling unit controls each switch of an offset correction circuit to select one capacitor associated with a voltage level of an input signal selected by an input signal selection unit, have an offset voltage of an operational amplifier generated according to the voltage level of the input signal stored by the selected capacitor, and correct an output of the operational amplifier by using the offset voltage held by the selected capacitor.

公开(公告)号：US08471794B2

公开(公告)日：2013-06-25

申请号：US12504981

申请日：2009-07-17

申请人： Yoshihiko Nakahira ,  Hiroshi Tsuchi

发明人： Yoshihiko Nakahira ,  Hiroshi Tsuchi

IPC分类号： G09G3/36

CPC分类号： G09G3/3696 ,  G09G3/3208 ,  G09G3/3225 ,  G09G3/3291 ,  G09G3/3648 ,  G09G2300/0842 ,  H03F3/45753 ,  H03F3/45977

摘要： To obtain an amplifier circuit capable of realizing low power consumption and high-precision output. A controlling unit controls each switch of an offset correction circuit to select one capacitor associated with a voltage level of an input signal selected by an input signal selection unit, have an offset voltage of an operational amplifier generated according to the voltage level of the input signal stored by the selected capacitor, and correct an output of the operational amplifier by using the offset voltage held by the selected capacitor.

摘要翻译： 获得能够实现低功耗和高精度输出的放大器电路。 控制单元控制偏移校正电路的每个开关以选择与由输入信号选择单元选择的输入信号的电压电平相关联的一个电容器，具有根据输入信号的电压电平产生的运算放大器的偏移电压 由所选择的电容器存储，并且通过使用由所选择的电容器保持的偏移电压来校正运算放大器的输出。

公开(公告)号：US07005916B2

公开(公告)日：2006-02-28

申请号：US10358245

申请日：2003-02-05

申请人： Yoshihiko Nakahira ,  Hiroshi Tsuchi

发明人： Yoshihiko Nakahira ,  Hiroshi Tsuchi

IPC分类号： H03F1/02

CPC分类号： G09G3/3696 ,  G09G3/3208 ,  G09G3/3225 ,  G09G3/3291 ,  G09G3/3648 ,  G09G2300/0842 ,  H03F3/45753 ,  H03F3/45977

摘要： To obtain an amplifier circuit capable of realizing low power consumption and high-precision output. A controlling unit controls each switch of an offset correction circuit to select one capacitor associated with a voltage level of an input signal selected by an input signal selection unit, have an offset voltage of an operational amplifier generated according to the voltage level of the input signal stored by the selected capacitor, and correct an output of the operational amplifier by using the offset voltage held by the selected capacitor.

公开(公告)号：US07586504B2

公开(公告)日：2009-09-08

申请号：US11294605

申请日：2005-12-06

申请人： Yoshihiko Nakahira ,  Hiroshi Tsuchi

发明人： Yoshihiko Nakahira ,  Hiroshi Tsuchi

IPC分类号： G09G3/36 ,  G09G5/10

CPC分类号： G09G3/3696 ,  G09G3/3208 ,  G09G3/3225 ,  G09G3/3291 ,  G09G3/3648 ,  G09G2300/0842 ,  H03F3/45753 ,  H03F3/45977

摘要： To obtain an amplifier circuit capable of realizing low power consumption and high-precision output. A controlling unit controls each switch of an offset correction circuit to select one capacitor associated with a voltage level of an input signal selected by an input signal selection unit, have an offset voltage of an operational amplifier generated according to the voltage level of the input signal stored by the selected capacitor, and correct an output of the operational amplifier by using the offset voltage held by the selected capacitor.

摘要翻译： 获得能够实现低功耗和高精度输出的放大器电路。 控制单元控制偏移校正电路的每个开关以选择与由输入信号选择单元选择的输入信号的电压电平相关联的一个电容器，具有根据输入信号的电压电平产生的运算放大器的偏移电压 由所选择的电容器存储，并且通过使用由所选择的电容器保持的偏移电压来校正运算放大器的输出。

公开(公告)号：US07116161B2

公开(公告)日：2006-10-03

申请号：US10939369

申请日：2004-09-14

申请人： Yoshihiko Nakahira

发明人： Yoshihiko Nakahira

IPC分类号： H03F1/02

CPC分类号： H03F3/45775 ,  H03F3/4521 ,  H03F2203/45724

摘要： Even when an input is small in a current supply capacity, a differential amplifier circuit capable of outputting a high accurate voltage with an offset corrected can be obtained. In the differential amplifier having first and second input terminals and an output terminal, a control is made for switching between a first state wherein a first input terminal is taken as a non-inverting input terminal, and a second input terminal is taken as an inverting input terminal, and a second state wherein the first input terminal is taken as an inverting input terminal and the second input terminal is taken as a non-inverting input terminal, and further, a capacity element, one end of which is connected to a predetermine power source terminal, is provided, and moreover, a control is made such that the first input terminal is supplied with an input voltage, and the other end of the capacity is connected to the second input terminal and output terminal in the first state, and the first input terminal is connected to the output terminal, and the other end of the capacity is connected to the second input terminal in the second state. In this way, an offset detecting operation is performed in the first state, and an offset correcting operation is performed in the second state without the input voltage connected to the capacity.

摘要翻译： 即使当输入电流容量小时，也可以获得能够输出偏移校正的高精度电压的差分放大电路。 在具有第一和第二输入端子和输出端子的差分放大器中，进行控制以将第一输入端子作为非反相输入端子的第一状态和第二输入端子作为反相 输入端子和第二状态，其中将第一输入端子作为反相输入端子，将第二输入端子作为非反相输入端子，另外，电容元件的一端连接到预定值 电源端子，此外，进行控制，使得向第一输入端子提供输入电压，并且将容量的另一端连接到处于第一状态的第二输入端子和输出端子，以及 第一输入端子连接到输出端子，另一端在第二状态下连接到第二输入端子。 以这种方式，在第一状态下执行偏移检测操作，并且在第二状态下执行偏移校正操作，而没有连接到容量的输入电压。