CHARGE PUMP REGULATOR AND METHOD OF PRODUCING A REGULATED VOLTAGE
    1.
    发明申请
    CHARGE PUMP REGULATOR AND METHOD OF PRODUCING A REGULATED VOLTAGE 失效
    充电泵调节器和制造调节电压的方法

    公开(公告)号:US20100156514A1

    公开(公告)日:2010-06-24

    申请号:US12719230

    申请日:2010-03-08

    CPC classification number: H02M3/07 H02M2001/0045

    Abstract: A charge pump regulator has a charge pump to establish a charge path and a discharge path alternately, so as to produce a regulated voltage on an output terminal. The charge pump has at least a current control element on the charge path or the discharge path to control the current flowing therethrough according to an output-dependent feedback signal.

    Abstract translation: 电荷泵调节器具有电荷泵,以交替地建立充电路径和放电路径,以便在输出端子上产生调节电压。 电荷泵在充电路径或放电路径上至少具有电流控制元件,以根据输出相关的反馈信号来控制流过其中的电流。

    CONTROL CIRCUIT AND METHOD FOR A BUCK-BOOST POWER CONVERTER
    2.
    发明申请
    CONTROL CIRCUIT AND METHOD FOR A BUCK-BOOST POWER CONVERTER 有权
    BUCK升压电源转换器的控制电路和方法

    公开(公告)号:US20110074373A1

    公开(公告)日:2011-03-31

    申请号:US12890940

    申请日:2010-09-27

    Applicant: SHUI-MU LIN

    Inventor: SHUI-MU LIN

    CPC classification number: H02M3/156 H02M3/1582

    Abstract: Control signals are generated for a buck-boost power stage of a buck-boost power converter to convert an input voltage to an output voltage. The buck-boost power stage includes an inductor and at least two power switches connected thereto. The output voltage is monitored to generate an error signal having clamped level according to a first detecting signal related to at least one of the input voltage, output voltage and inductor current. In a buck-boost mode, a compensation signal and a duty insertion signal are generated according to a second detecting signal related to at least one of the input voltage, output voltage, inductor current and variation of the output voltage, the error signal is compensated with the compensation signal to generate a compensated error signal, and the control signals are determined upon the combination of the compensated error signal, the duty insertion signal and a ramp signal.

    Abstract translation: 为降压 - 升压功率转换器的降压 - 升压功率级产生控制信号,以将输入电压转换为输出电压。 降压 - 升压功率级包括电感器和至少两个连接到其上的功率开关。 监视输出电压以根据与输入电压,输出电压和电感器电流中的至少一个相关的第一检测信号产生具有钳位电平的误差信号。 在降压 - 升压模式中,根据与输入电压,输出电压,电感器电流和输出电压的变化中的至少一个相关的第二检测信号产生补偿信号和占空比插入信号,误差信号被补偿 利用补偿信号产生经补偿的误差信号,并且在补偿的误差信号,占空比插入信号和斜坡信号的组合上确定控制信号。

    LED DRIVER AND DRIVING METHOD
    3.
    发明申请
    LED DRIVER AND DRIVING METHOD 有权
    LED驱动和驱动方法

    公开(公告)号:US20110127923A1

    公开(公告)日:2011-06-02

    申请号:US12955094

    申请日:2010-11-29

    CPC classification number: H05B33/0815 H05B33/0818 H05B33/0824 Y02B20/347

    Abstract: An LED driver includes a power converter to convert an input voltage to a regulated voltage, a current source to be connected with an LED string in series between the power converter and a bias node, and a switching circuit to apply a bias voltage to the bias node to set the total voltage drop of the LED string and the current source. By controlling the total voltage drop of the LED string and the current source, the LED driver will automatically select a boost mode or a buck mode for operation, thereby improving the efficiency thereof.

    Abstract translation: LED驱动器包括将输入电压转换为调节电压的电力转换器,与功率转换器和偏置节点之间串联的LED串连接的电流源以及向偏置施加偏置电压的开关电路 节点设置LED串和电流源的总压降。 通过控制LED串和电流源的总电压降,LED驱动器将自动选择升压模式或降压模式进行操作,从而提高其效率。

    LOW PIN COUNT LED DRIVER INTEGRATED CIRCUIT
    5.
    发明申请
    LOW PIN COUNT LED DRIVER INTEGRATED CIRCUIT 有权
    低引脚数LED驱动器集成电路

    公开(公告)号:US20110006697A1

    公开(公告)日:2011-01-13

    申请号:US12831528

    申请日:2010-07-07

    CPC classification number: H05B33/0815 H05B33/0845 Y02B20/346

    Abstract: A LED driver integrated circuit has a voltage input pin, a voltage output pin, a capacitor pin, and a switching circuit connected to the capacitor pin and the voltage output pin. The capacitor pin and the voltage output pin are for a flying capacitor to be connected therebetween, and thus the switching circuit and the flying capacitor establish a charge pump to convert an input voltage received by the voltage input pin into an output voltage at the voltage output pin.

    Abstract translation: LED驱动器集成电路具有电压输入引脚,电压输出引脚,电容引脚和连接到电容引脚和电压输出引脚的开关电路。 电容器引脚和电压输出引脚用于连接在其间的飞电容器,因此开关电路和飞跨电容器建立电荷泵,以将由电压输入引脚接收的输入电压转换为电压输出端的输出电压 销。

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