Average current controller
    1.
    发明授权
    Average current controller 有权
    平均电流控制器

    公开(公告)号:US08698422B2

    公开(公告)日:2014-04-15

    申请号:US13206195

    申请日:2011-08-09

    CPC分类号: H05B33/0818 Y02B20/347

    摘要: An average current controller configured for connection to display-components through a power switch. The average current controller includes first, second, and third comparators, an integrator, and a reference current generator. The first comparator compares a peak current level of reference current with a load current level of load current and outputs a first comparison result. The load current denotes current flowing through the display-components. The second comparator compares the peak current level of reference current with an average current level of the load current and outputs a second comparison result. The integrator integrates the second comparison result. The third comparator compares the integral value of the integrator with a predetermined value and outputs a third comparison result. The reference current generator sets the peak current level based on the first comparison result and the third comparison result and generates the reference current with the set peak current level.

    摘要翻译: 一个平均电流控制器,配置为通过电源开关连接到显示器组件。 平均电流控制器包括第一,第二和第三比较器,积分器和参考电流发生器。 第一个比较器将参考电流的峰值电流电平与负载电流的负载电流水平进行比较,并输出第一个比较结果。 负载电流表示流过显示器组件的电流。 第二个比较器将参考电流的峰值电流电平与负载电流的平均电流电平进行比较,并输出第二个比较结果。 积分器集成了第二个比较结果。 第三比较器将积分器的积分值与预定值进行比较,并输出第三比较结果。 参考电流发生器基于第一比较结果和第三比较结果设置峰值电流电平,并以设定的峰值电流电平生成参考电流。

    Driver circuit for driving light-emitting elements including a power switching element
    2.
    发明授权
    Driver circuit for driving light-emitting elements including a power switching element 有权
    用于驱动包括功率开关元件的发光元件的驱动电路

    公开(公告)号:US08492998B2

    公开(公告)日:2013-07-23

    申请号:US13206239

    申请日:2011-08-09

    CPC分类号: H05B33/0815

    摘要: A driver circuit is configured to drive light-emitting elements. The driver circuit includes a light-emitting element, a power switching element, a control circuit, and a charge pump circuit. The power switching element includes a first terminal connected to the light-emitting element and turns on and off the light-emitting element. The control circuit is connected to a second terminal of the power switching element and controls a switching operation of the power switching element. The charge pump circuit is connected between the control circuit and a power source for the light-emitting element and supplies current to the control circuit for driving the control circuit.

    摘要翻译: 驱动电路被配置为驱动发光元件。 驱动电路包括发光元件,功率开关元件,控制电路和电荷泵电路。 功率开关元件包括连接到发光元件的第一端子并且使发光元件接通和断开。 控制电路连接到电力开关元件的第二端子,并且控制电力开关元件的开关操作。 电荷泵电路连接在控制电路和发光元件的电源之间,并向控制电路提供电流以驱动控制电路。

    AVERAGE CURRENT CONTROLLER
    3.
    发明申请
    AVERAGE CURRENT CONTROLLER 有权
    平均电流控制器

    公开(公告)号:US20120049753A1

    公开(公告)日:2012-03-01

    申请号:US13206195

    申请日:2011-08-09

    IPC分类号: H05B37/02

    CPC分类号: H05B33/0818 Y02B20/347

    摘要: An average current controller configured for connection to display-components through a power switch. The average current controller includes first, second, and third comparators, an integrator, and a reference current generator. The first comparator compares a peak current level of reference current with a load current level of load current and outputs a first comparison result. The load current denotes current flowing through the display-components. The second comparator compares the peak current level of reference current with an average current level of the load current and outputs a second comparison result. The integrator integrates the second comparison result. The third comparator compares the integral value of the integrator with a predetermined value and outputs a third comparison result. The reference current generator sets the peak current level based on the first comparison result and the third comparison result and generates the reference current with the set peak current level.

    摘要翻译: 一个平均电流控制器,配置为通过电源开关连接到显示器组件。 平均电流控制器包括第一,第二和第三比较器,积分器和参考电流发生器。 第一个比较器将参考电流的峰值电流电平与负载电流的负载电流水平进行比较,并输出第一个比较结果。 负载电流表示流过显示器组件的电流。 第二个比较器将参考电流的峰值电流电平与负载电流的平均电流电平进行比较,并输出第二个比较结果。 积分器集成了第二个比较结果。 第三比较器将积分器的积分值与预定值进行比较,并输出第三比较结果。 参考电流发生器基于第一比较结果和第三比较结果设置峰值电流电平,并以设定的峰值电流电平生成参考电流。