公开(公告)号：US20090224830A1

公开(公告)日：2009-09-10

申请号：US12468124

申请日：2009-05-19

申请人： Chang Ho An ,  Si Wang Sung

发明人： Chang Ho An ,  Si Wang Sung

IPC分类号： H03F3/45

CPC分类号： H03F3/45183 ,  H03F3/3023 ,  H03F3/45192 ,  H03F3/45475 ,  H03F2203/30015 ,  H03F2203/45138 ,  H03F2203/45626 ,  H03F2203/45726

摘要： An operational amplifier includes a differential amplifier including an active load, a current mirror including a first branch and a second branch, a first switch connected between a first power source and an output node and switched in response to a voltage of a first output terminal of the differential amplifier, a first bias circuit to control an amount of a reference current flowing in the first branch in response to a voltage of a second output terminal of the differential amplifier, a second bias circuit to control a voltage of the second branch in which a mirror current flows, in response to a voltage of the first output terminal, a second switch connected between the output node and a second power source and switched in response to a voltage of the second branch, and a capacitor connected between the output node and the first output terminal.

摘要翻译： 运算放大器包括：差分放大器，包括有源负载，包括第一分支和第二分支的电流镜;连接在第一电源和输出节点之间的第一开关，并响应于第一输出端的电压而被切换 差分放大器，用于响应于差分放大器的第二输出端的电压来控制在第一分支中流动的参考电流的量的第一偏置电路，用于控制第二分支的电压的第二偏置电路，其中 反射镜电流响应于第一输出端子的电压而流动，第二开关连接在输出节点和第二电源之间，并且响应于第二分支的电压而被切换，以及连接在输出节点和 第一个输出端子。

公开(公告)号：US07551030B2

公开(公告)日：2009-06-23

申请号：US11972339

申请日：2008-01-10

申请人： Chang Ho An ,  Si Wang Sung

发明人： Chang Ho An ,  Si Wang Sung

IPC分类号： H03F3/45

CPC分类号： H03F3/45183 ,  H03F3/3023 ,  H03F3/45192 ,  H03F3/45475 ,  H03F2203/30015 ,  H03F2203/45138 ,  H03F2203/45626 ,  H03F2203/45726

摘要： An operational amplifier includes a differential amplifier including an active load, a current mirror including a first branch and a second branch, a first switch connected between a first power source and an output node and switched in response to a voltage of a first output terminal of the differential amplifier, a first bias circuit to control an amount of a reference current flowing in the first branch in response to a voltage of a second output terminal of the differential amplifier, a second bias circuit to control a voltage of the second branch in which a mirror current flows, in response to a voltage of the first output terminal, a second switch connected between the output node and a second power source and switched in response to a voltage of the second branch, and a capacitor connected between the output node and the first output terminal.

摘要翻译： 运算放大器包括：差分放大器，包括有源负载，包括第一分支和第二分支的电流镜;连接在第一电源和输出节点之间的第一开关，并响应于第一输出端的电压而被切换 差分放大器，用于响应于差分放大器的第二输出端的电压来控制在第一分支中流动的参考电流的量的第一偏置电路，用于控制第二分支的电压的第二偏置电路，其中 反射镜电流响应于第一输出端子的电压而流动，第二开关连接在输出节点和第二电源之间，并且响应于第二分支的电压而被切换，以及连接在输出节点和 第一个输出端子。

公开(公告)号：US07855600B2

公开(公告)日：2010-12-21

申请号：US12468124

申请日：2009-05-19

申请人： Chang Ho An ,  Si Wang Sung

发明人： Chang Ho An ,  Si Wang Sung

IPC分类号： H03F3/45

CPC分类号： H03F3/45183 ,  H03F3/3023 ,  H03F3/45192 ,  H03F3/45475 ,  H03F2203/30015 ,  H03F2203/45138 ,  H03F2203/45626 ,  H03F2203/45726

摘要： An operational amplifier includes a differential amplifier including an active load, a current mirror including a first branch and a second branch, a first switch connected between a first power source and an output node and switched in response to a voltage of a first output terminal of the differential amplifier, a first bias circuit to control an amount of a reference current flowing in the first branch in response to a voltage of a second output terminal of the differential amplifier, a second bias circuit to control a voltage of the second branch in which a mirror current flows, in response to a voltage of the first output terminal, a second switch connected between the output node and a second power source and switched in response to a voltage of the second branch, and a capacitor connected between the output node and the first output terminal.

摘要翻译： 运算放大器包括：差分放大器，包括有源负载，包括第一分支和第二分支的电流镜;连接在第一电源和输出节点之间的第一开关，并响应于第一输出端的电压而被切换 差分放大器，用于响应于差分放大器的第二输出端的电压来控制在第一分支中流动的参考电流的量的第一偏置电路，用于控制第二分支的电压的第二偏置电路，其中 反射镜电流响应于第一输出端子的电压而流动，第二开关连接在输出节点和第二电源之间，并且响应于第二分支的电压而被切换，以及连接在输出节点和 第一个输出端子。

公开(公告)号：US20080191804A1

公开(公告)日：2008-08-14

申请号：US11972339

申请日：2008-01-10

申请人： Chang Ho An ,  Si Wang Sung

发明人： Chang Ho An ,  Si Wang Sung

IPC分类号： H03F3/45

CPC分类号： H03F3/45183 ,  H03F3/3023 ,  H03F3/45192 ,  H03F3/45475 ,  H03F2203/30015 ,  H03F2203/45138 ,  H03F2203/45626 ,  H03F2203/45726

摘要： An operational amplifier includes a differential amplifier including an active load, a current mirror including a first branch and a second branch, a first switch connected between a first power source and an output node and switched in response to a voltage of a first output terminal of the differential amplifier, a first bias circuit to control an amount of a reference current flowing in the first branch in response to a voltage of a second output terminal of the differential amplifier, a second bias circuit to control a voltage of the second branch in which a mirror current flows, in response to a voltage of the first output terminal, a second switch connected between the output node and a second power source and switched in response to a voltage of the second branch, and a capacitor connected between the output node and the first output terminal.

摘要翻译： 运算放大器包括：差分放大器，包括有源负载，包括第一分支和第二分支的电流镜;连接在第一电源和输出节点之间的第一开关，并响应于第一输出端的电压而被切换 差分放大器，用于响应于差分放大器的第二输出端的电压来控制在第一分支中流动的参考电流的量的第一偏置电路，用于控制第二分支的电压的第二偏置电路，其中 反射镜电流响应于第一输出端子的电压而流动，第二开关连接在输出节点和第二电源之间，并且响应于第二分支的电压而被切换，以及连接在输出节点和 第一个输出端子。

公开(公告)号：US20090039959A1

公开(公告)日：2009-02-12

申请号：US12217933

申请日：2008-07-10

申请人： Chang Ho An ,  Kye Eon Chang

发明人： Chang Ho An ,  Kye Eon Chang

IPC分类号： H03F3/45

CPC分类号： H03F3/45219 ,  H03F3/3022 ,  H03F3/4521 ,  H03F2203/45091 ,  H03F2203/45301 ,  H03F2203/45302 ,  H03F2203/45726

摘要： A differential amplifier includes input, output, current summing, and switch circuits. The input circuit generates first and second differential currents in response to a voltage difference between differential input signals. The output circuit includes a first and second transistors connected between a first voltage rail and output port and the output port and second voltage rail, respectively. The current summing circuit includes a first control node outputting a first control voltage to control a current in the first transistor and a second control node outputting a second control voltage to control a current in the second transistor, in response to the first and second differential currents, respectively. The switch circuit connects the first transistor gate to one of the first control node and the first voltage rail and the second transistor gate to one of the second control node and the second voltage rail, in response to a control signal.

摘要翻译： 差分放大器包括输入，输出，电流求和和开关电路。 输入电路响应于差分输入信号之间的电压差产生第一和第二差分电流。 输出电路包括分别连接在第一电压轨和输出口与输出端口和第二电压轨之间的第一和第二晶体管。 电流求和电路包括：第一控制节点，输出第一控制电压以控制第一晶体管中的电流;以及第二控制节点，响应于第一和第二差分电流，输出第二控制电压以控制第二晶体管中的电流 ， 分别。 响应于控制信号，开关电路将第一晶体管栅极连接到第一控制节点和第一电压轨之一以及第二晶体管栅极连接到第二控制节点和第二电压轨之一。

公开(公告)号：US07764121B2

公开(公告)日：2010-07-27

申请号：US12217933

申请日：2008-07-10

申请人： Chang Ho An ,  Kye Eon Chang

发明人： Chang Ho An ,  Kye Eon Chang

IPC分类号： H03F3/45

CPC分类号： H03F3/45219 ,  H03F3/3022 ,  H03F3/4521 ,  H03F2203/45091 ,  H03F2203/45301 ,  H03F2203/45302 ,  H03F2203/45726

摘要： A differential amplifier includes input, output, current summing, and switch circuits. The input circuit generates first and second differential currents in response to a voltage difference between differential input signals. The output circuit includes a first and second transistors connected between a first voltage rail and output port and the output port and second voltage rail, respectively. The current summing circuit includes a first control node outputting a first control voltage to control a current in the first transistor and a second control node outputting a second control voltage to control a current in the second transistor, in response to the first and second differential currents, respectively. The switch circuit connects the first transistor gate to one of the first control node and the first voltage rail and the second transistor gate to one of the second control node and the second voltage rail, in response to a control signal.

摘要翻译： 差分放大器包括输入，输出，电流求和和开关电路。 输入电路响应于差分输入信号之间的电压差产生第一和第二差分电流。 输出电路包括分别连接在第一电压轨和输出口与输出端口和第二电压轨之间的第一和第二晶体管。 电流求和电路包括：第一控制节点，输出第一控制电压以控制第一晶体管中的电流;以及第二控制节点，响应于第一和第二差分电流，输出第二控制电压以控制第二晶体管中的电流 ， 分别。 响应于控制信号，开关电路将第一晶体管栅极连接到第一控制节点和第一电压轨之一以及第二晶体管栅极连接到第二控制节点和第二电压轨之一。

公开(公告)号：US20080278473A1

公开(公告)日：2008-11-13

申请号：US12151756

申请日：2008-05-08

申请人： Chang Ho An

发明人： Chang Ho An

IPC分类号： G09G5/10 ,  H03K3/00

CPC分类号： H04L25/0264 ,  G09G2310/0248 ,  G09G2310/027 ,  G09G2310/066 ,  G09G2320/041 ,  G09G2330/028 ,  H03K19/00361 ,  H03K19/018571 ,  H03K19/018578 ,  H03K19/018585 ,  H04L25/028

摘要： A source line driver and method for controlling a slew rate according to temperature and a display device including the source line driver are provided. The source line driver includes a temperature sensing unit configured to sense a temperature, compare the sensed temperature with a reference temperature, and generate a comparison result as a control signal; and a bias voltage generator configured to output a plurality of bias voltages whose voltage levels are controlled in response to the control signal. Accordingly, the slew rate of an output buffer is controlled based on the sensed temperature, so that false operation caused by heat generated in the source line driver and display panel can be prevented when the temperature is increased.

摘要翻译： 提供了根据温度控制压摆率的源极线驱动器和方法以及包括源极线驱动器的显示装置。 源极线驱动器包括：温度检测单元，被配置为感测温度，将感测到的温度与参考温度进行比较，并产生比较结果作为控制信号; 以及偏置电压发生器，被配置为输出响应于所述控制信号来控制其电压电平的多个偏置电压。 因此，基于检测到的温度来控制输出缓冲器的转换速度，从而当温度升高时可以防止在源极线驱动器和显示面板中产生的热引起的误操作。