公开(公告)号：US08358119B2

公开(公告)日：2013-01-22

申请号：US12859335

申请日：2010-08-19

申请人： Hyoung-Rae Kim

发明人： Hyoung-Rae Kim

IPC分类号： G05F3/16 ,  G05F3/20

CPC分类号： G05F3/242

摘要： A current reference circuit includes a proportional-to-absolute temperature (PTAT) current generator, a band-gap reference circuit and a current replication circuit. The PTAT generator generates a PTAT current. The band-gap reference circuit generates a reference voltage based on the PTAT current and generates a second current by cancelling a first current from the PTAT current. The first current has a zero temperature coefficient and the second current has a positive temperature coefficient. The current replication circuit replicates the first current based on the PTAT current and the second current.

摘要翻译： 电流参考电路包括比例绝对温度（PTAT）电流发生器，带隙基准电路和电流复制电路。 PTAT发生器产生PTAT电流。 带隙基准电路基于PTAT电流产生参考电压，并通过从PTAT电流消除第一电流而产生第二电流。 第一电流具有零温度系数，第二电流具有正温度系数。 当前复制电路基于PTAT电流和第二电流复制第一电流。

公开(公告)号：US07880501B2

公开(公告)日：2011-02-01

申请号：US12486176

申请日：2009-06-17

申请人： Hee-Seok Han ,  Hyoung-Rae Kim

发明人： Hee-Seok Han ,  Hyoung-Rae Kim

IPC分类号： H03K19/175

CPC分类号： G09G3/3696 ,  G09G3/3648 ,  G09G2310/0289 ,  G09G2330/02 ,  H03K3/356113 ,  H03K19/018571

摘要： Level shifting circuits generate multiple tracking signals that are in-phase with an input signal, but are also level-shifted with wider voltage swings relative to the input signal. These input tracking signals are provided as separate inputs to an inverter having at least one PMOS pull-up transistor and at least one NMOS pull-down transistor therein. A level shifting circuit may include a differential input circuit, which is responsive to true and complementary input signals. A first load circuit is electrically coupled to the differential input circuit. This first load circuit is configured to generate first and second tracking signals at respective first and second nodes therein. These first and second tracking signals are in-phase, level-shifted versions of each other, and have respective voltage swings that are greater than a voltage swing of the complementary input signals. The inverter includes a pull-up transistor responsive to the first tracking signal and a pull-down transistor responsive to the second tracking signal.

摘要翻译： 电平移位电路产生与输入信号同相的多个跟踪信号，但是也相对于输入信号具有更宽的电压摆幅而电平移位。 这些输入跟踪信号作为分离的输入提供给具有至少一个PMOS上拉晶体管和至少一个NMOS下拉晶体管的反相器。 电平移位电路可以包括差分输入电路，其响应于真实和互补的输入信号。 第一负载电路电耦合到差分输入电路。 该第一负载电路被配置为在其中的相应的第一和第二节点处产生第一和第二跟踪信号。 这些第一和第二跟踪信号是彼此的同相，电平移位版本，并且具有大于互补输入信号的电压摆幅的各自的电压摆幅。 反相器包括响应于第一跟踪信号的上拉晶体管和响应于第二跟踪信号的下拉晶体管。

公开(公告)号：US20100295522A1

公开(公告)日：2010-11-25

申请号：US12759942

申请日：2010-04-14

申请人： Chang-Ju Lee ,  Hyoung-Rae Kim ,  San-Ho Byun

发明人： Chang-Ju Lee ,  Hyoung-Rae Kim ,  San-Ho Byun

IPC分类号： G05F1/10

CPC分类号： G05F1/46 ,  H03F1/303 ,  H03F3/45475 ,  H03F2203/45528 ,  H03F2203/45534

摘要： A semiconductor device includes a voltage regulator. The device includes an operational amplifier configured to compare an input voltage with a feedback voltage and output an output voltage, an up-resistor connected between an output of the operational amplifier and a first node, a down-resistor connected between a second node and a ground voltage terminal, and a switching unit including a fuse box connected between a third node outputting the feedback voltage and a fourth node having a variable resistance value, and configured to connect the first node with the fourth node and the second node with the third node, or connect the first node with the third node and the second node with the fourth node.

摘要翻译： 半导体器件包括电压调节器。 该装置包括：运算放大器，被配置为将输入电压与反馈电压进行比较并输出输出电压;连接在运算放大器的输出端与第一节点之间的上拉电阻，连接在第二节点和第二节点之间的下拉电阻; 接地电压端子和包括连接在输出反馈电压的第三节点和具有可变电阻值的第四节点之间的保险丝盒的开关单元，并且被配置为将第一节点与第四节点和第二节点与第三节点 ，或者将第一节点与第三节点和第二节点连接到第四节点。

公开(公告)号：US07786801B2

公开(公告)日：2010-08-31

申请号：US12205364

申请日：2008-09-05

申请人： Hyoung Rae Kim

发明人： Hyoung Rae Kim

IPC分类号： H03F3/45

CPC分类号： H03F3/45192 ,  H03F1/0205 ,  H03F1/083 ,  H03F3/3022 ,  H03F3/45219 ,  H03F3/45475 ,  H03F2200/153 ,  H03F2203/30015 ,  H03F2203/45236 ,  H03F2203/45244 ,  H03F2203/45248 ,  H03F2203/45318 ,  H03F2203/45352 ,  H03F2203/45512 ,  H03F2203/45626 ,  H03F2203/45726

摘要： An operational amplifier includes a differential amplifier, an output stage, and a control unit. The differential amplifier generates a first current through a first output node and a second current through a second output node in response to a voltage difference between a first input signal input through a first input terminal and a second input signal input through a second input terminal. The output stage generates an output signal through an output node. The control unit receives a voltage of the first output node and a voltage of the second output node, as bias voltages, and controls an output current of the output stage to determine the output signal of the output stage in response to the received voltages of the first and second output nodes.

摘要翻译： 运算放大器包括差分放大器，输出级和控制单元。 响应于通过第一输入端子输入的第一输入信号和通过第二输入端子输入的第二输入信号之间的电压差，差分放大器产生通过第一输出节点的第一电流和通过第二输出节点的第二电流。 输出级通过输出节点产生输出信号。 控制单元接收第一输出节点的电压和第二输出节点的电压作为偏置电压，并且控制输出级的输出电流，以响应于所接收到的电压来确定输出级的输出信号 第一和第二输出节点。

公开(公告)号：US20090322737A1

公开(公告)日：2009-12-31

申请号：US12488803

申请日：2009-06-22

申请人： Hyoung-Rae Kim ,  Hyo-Sun Kim ,  Yoon-Kyung Choi ,  Jae-Youl Lee

发明人： Hyoung-Rae Kim ,  Hyo-Sun Kim ,  Yoon-Kyung Choi ,  Jae-Youl Lee

IPC分类号： G09G5/00

CPC分类号： G09G3/3677 ,  G09G2300/0426 ,  G09G2310/0248 ,  G09G2310/0291

摘要： A display panel driving apparatus and a method of driving the same are provided, and, in particular, a gate driver and a method of driving the gate driver. The gate driver includes a decoder that decodes gate line selection data and that generates a gate line selection signal. A gate driving circuit generates a gate driving signal in a pre-charging phase and a driving phase in response to the gate line selection signal and a pre-charging control signal that controls an off-state of non-selected gate lines. In a time period of the driving phase in which a gate line is not selected, a node that has been in a floating state is held to a target voltage level in response to a hold control signal. The hold control signal is generated based upon a timing relationship between the gate line selection signal and the pre-charging control signal.

摘要翻译： 提供了显示面板驱动装置及其驱动方法，特别是栅极驱动器和驱动栅极驱动器的方法。 栅极驱动器包括解码栅极线选择数据并产生栅极线选择信号的解码器。 栅极驱动电路响应于栅极线选择信号而产生预充电阶段和驱动相位中的栅极驱动信号，以及控制非选择栅极线的截止状态的预充电控制信号。 在没有选择栅极线的驱动阶段的时间段中，响应于保持控制信号将处于浮置状态的节点保持到目标电压电平。 保持控制信号基于栅极线选择信号和预充电控制信号之间的定时关系而产生。

公开(公告)号：US07586373B2

公开(公告)日：2009-09-08

申请号：US11924647

申请日：2007-10-26

申请人： Hyoung Rae Kim

发明人： Hyoung Rae Kim

IPC分类号： H03F3/45

CPC分类号： H03F3/45183 ,  H03F3/3022 ,  H03F3/45475 ,  H03F2203/45134 ,  H03F2203/45318 ,  H03F2203/45364

摘要： A fully differential amplifier includes a first single-ended current mirror type fully differential amplifier outputting a first output signal by two stage amplifying a difference between a first input signal and a second input signal and a second single-ended current mirror type fully differential amplifier outputting a second output signal by two stage amplifying a difference between the first input signal and the second input signal. A first tail of the first single-ended current mirror type fully differential amplifier and a second tail of the second single-ended current mirror type fully differential amplifier are connected to each other and the first output signal and the second output signal are differential signals.

摘要翻译： 全差分放大器包括：第一单端电流镜式全差分放大器，通过两级放大第一输入信号和第二输入信号之间的差异输出第一输出信号;以及第二单端电流镜型全差分放大器输出 第二输出信号通过两级放大第一输入信号和第二输入信号之间的差。 第一单端电流镜式全差分放大器的第一尾和第二单端电流镜式全差分放大器的第二尾相互连接，第一输出信号和第二输出信号为差分信号。

公开(公告)号：US20080316154A1

公开(公告)日：2008-12-25

申请号：US11973473

申请日：2007-10-09

申请人： Hyoung-Rae Kim

发明人： Hyoung-Rae Kim

IPC分类号： G09G3/36

CPC分类号： G09G3/3655 ,  G09G2320/0247

摘要： An apparatus for generating a VCOM voltage in a display device includes first and second buffer amplifiers and a charge pump. The first buffer amplifier is biased with high and low rail voltages for generating the VCOM voltage. The second buffer amplifier generates the high rail voltage at an output node not connected to an external capacitor. The charge pump generates the low rail voltage by charge pumping directly from an external power supply voltage. Alternatively, a charge pump and a comparator are used for generating the VCOM voltage at an output of the charge pump. The comparator generates a charge pump control signal from comparing the VCOM voltage with a reference voltage.

摘要翻译： 用于在显示装置中产生VCOM电压的装置包括第一和第二缓冲放大器和电荷泵。 第一缓冲放大器被偏置用于产生VCOM电压的高和低轨电压。 第二缓冲放大器在不连接到外部电容器的输出节点处产生高电压电压。 电荷泵通过从外部电源电压直接进行充电来产生低轨电压。 或者，电荷泵和比较器用于在电荷泵的输出处产生VCOM电压。 比较器通过将VCOM电压与参考电压进行比较来产生电荷泵控制信号。

公开(公告)号：US20070211014A1

公开(公告)日：2007-09-13

申请号：US11684335

申请日：2007-03-09

申请人： Hyoung-Rae Kim ,  Dong-Yul Lee

发明人： Hyoung-Rae Kim ,  Dong-Yul Lee

IPC分类号： G09G3/36

CPC分类号： G09G3/3406 ,  G09G2310/08 ,  G09G2320/064

摘要： A method of controlling backlighting of a Liquid Crystal Display (LCD) can include generating an on-time signal to activate a backlight for an LCD in synchronization with providing a frame of data to the LCD.

摘要翻译： 一种控制液晶显示器（LCD）的背光的方法可以包括：向LCD提供数据帧同步产生用于LCD的背光源的导通时间信号。

公开(公告)号：US20050190613A1

公开(公告)日：2005-09-01

申请号：US11118141

申请日：2005-04-29

申请人： Hyoung-Rae Kim

发明人： Hyoung-Rae Kim

IPC分类号： H02M3/07 ,  G11C5/00

CPC分类号： H02M3/07

摘要： A voltage boosting circuit, boosting power supply unit and methods thereof are provided. A boosting power supply unit includes a boosting circuit having a small number of externally-mounted capacitors, which generates stepped-up and stepped-down boosted voltages through charging and pumping under two-phase control, so that the simultaneous output of the stepped-up voltage and the stepped-down voltage, the output of only the stepped-up voltage, the output of only the stepped-down voltage, and the cut-off of the output of the stepped-up voltage and the stepped-down voltage can be controlled on the basis of the phase control signal generated from the enable signals of which the logic states are changed in accordance with an amount of load.

公开(公告)号：US20050062520A1

公开(公告)日：2005-03-24

申请号：US10947504

申请日：2004-09-22

申请人： Hyoung-Rae Kim ,  Jae-Ho Park

发明人： Hyoung-Rae Kim ,  Jae-Ho Park

IPC分类号： G09G3/36 ,  H02M3/07 ,  G05F3/02

CPC分类号： H02M3/07 ,  H02M2001/009 ,  H02M2003/071

摘要： Provided are a power consumption controlled boosting apparatus, a power-boosting system that determines boosting according to an amount of power consumption using a small number of capacitors, and a power-boosting method. The power-boosting system generates a boosting voltage without using a voltage regulating circuit and determines boosting according to the amount of power consumption.

摘要翻译： 提供了一种功率消耗控制的升压装置，功率增强系统，其根据使用少量电容器的功率消耗量来确定升压，以及功率增强方法。 增压系统在不使用电压调节电路的情况下产生升压，并根据功耗量确定升压。