Voltage regulator with gate resistor for improved efficiency
    71.
    发明授权
    Voltage regulator with gate resistor for improved efficiency 有权
    具有栅极电阻的电压调节器,可提高效率

    公开(公告)号:US08324878B2

    公开(公告)日:2012-12-04

    申请号:US12610959

    申请日:2009-11-02

    申请人: Dong Ho Lee

    发明人: Dong Ho Lee

    IPC分类号: G05F1/40

    CPC分类号: H02M3/1588 Y02B70/1466

    摘要: A voltage regulator includes an active control switch, an active sync switch, a driver circuit, and a gate resistor. The active control switch is coupled between an input voltage line and an input of an energy storage device. The active sync switch is coupled to the input of the energy storage device. The driver circuit is coupled to the control and sync switches to alternately drive each of the control and sync switches into a conducting state to produce a regulated voltage at an output of the energy storage device. The gate resistor is coupled in series within a control path of the sync switch. The gate resistor has a resistance value that is tuned to reduce an anticipated dead time between a turn-off time of the sync switch and a turn-on time of the control switch.

    摘要翻译: 电压调节器包括有源控制开关,有源同步开关,驱动电路和栅极电阻。 有源控制开关耦合在输入电压线和能量存储装置的输入端之间。 主动同步开关耦合到能量存储装置的输入端。 驱动器电路耦合到控制和同步开关以交替地将每个控制和同步开关驱动到导通状态,以在能量存储装置的输出处产生调节电压。 栅极电阻器在同步开关的控制路径内串联耦合。 栅极电阻器具有被调节的电阻值,以减少同步开关的关断时间和控制开关的导通时间之间的预期死区时间。

    Differential amplifier and method for generating computer simulation model thereof
    73.
    发明授权
    Differential amplifier and method for generating computer simulation model thereof 有权
    差分放大器及其计算机仿真模型的生成方法

    公开(公告)号:US07636654B2

    公开(公告)日:2009-12-22

    申请号:US11260159

    申请日:2005-10-28

    IPC分类号: G06F17/50

    CPC分类号: H03F3/45 H03F2203/45361

    摘要: A differential amplifier and a method for generating a computer simulation model thereof are disclosed. The device is thermally stable through adoption of a ballast resistor to a differential structure of a unit transistor pair, such that the differential amplifier prevents heat effect phenomena, such as performance deterioration and device destruction by heating, and, at the same time, improves or maintains other performances, thereby achieving high gain, high efficiency, high linearity, and wide bandwidth characteristics. Therefore, the differential amplifier can be easily designed as undesired effects of parasitic resistor of emitter or via or bonding wire, etc. for the differential amplifier are reduced in a differential mode.

    摘要翻译: 公开了一种差分放大器及其计算机仿真模型的生成方法。 该器件通过对单位晶体管对的差分结构采用镇流电阻器而具有热稳定性,使得差分放大器防止诸如性能恶化和器件通过加热破坏的热效应现象,并且同时改善或 保持其他性能,从而实现高增益,高效率,高线性度和宽带宽特性。 因此,差分放大器可以很容易地设计为差分放大器的寄生电阻器的不期望的效应,差分放大器在差分模式下减小。

    Differential amplifier using body-source cross coupling
    75.
    发明授权
    Differential amplifier using body-source cross coupling 有权
    差分放大器采用体源交叉耦合

    公开(公告)号:US07479830B2

    公开(公告)日:2009-01-20

    申请号:US11648692

    申请日:2007-01-03

    IPC分类号: H03F3/45 H03F1/22

    摘要: Disclosed herein is a differential amplifier using body-source cross coupling. In a common gate differential amplifier in which common gate amplifiers are implemented in a differential structure, since the bodies of the common gate amplifiers are cross coupled to the sources of the opposite common gate amplifiers, it is possible to increase transconductance due to body effect to improve a gain. Since the potential of the body is equal to that of the source in a DC mode, a breakdown voltage reduction problem is alleviated.

    摘要翻译: 这里公开了使用主体 - 交叉耦合的差分放大器。 在公共栅极放大器以差分结构实现的公共栅极差分放大器中,由于公共栅极放大器的主体与相对的公共栅极放大器的源极交叉耦合,所以可以增加由于体效应导致的跨导 改善收益。 由于身体的电位与直流模式的电位相等,所以降低了击穿电压的问题。

    MOBILE TERMINAL HAVING AN IMPROVED INTERNAL ANTENNA
    77.
    发明申请
    MOBILE TERMINAL HAVING AN IMPROVED INTERNAL ANTENNA 审中-公开
    具有改进的内部天线的移动终端

    公开(公告)号:US20080261667A1

    公开(公告)日:2008-10-23

    申请号:US12104821

    申请日:2008-04-17

    IPC分类号: H04M1/03

    CPC分类号: H01Q1/243 H01Q9/285

    摘要: A mobile terminal is provided that includes a first area having a first conductive surface, a second area having a second conductive surface, the second area separated from the first area, and a feeding point formed between the first conductive surface and the second conductive surface to supply electrical signals to or from the first and the second conductive surfaces. The first and the second conductive surfaces together from an internal antenna

    摘要翻译: 提供了一种移动终端,其包括具有第一导电表面的第一区域,具有第二导电表面的第二区域,与第一区域分离的第二区域,以及形成在第一导电表面和第二导电表面之间的馈电点, 向第一和第二导电表面提供电信号。 第一和第二导电表面一起从内部天线