High accuracy zero crossing detector and method therefor
    1.
    发明授权
    High accuracy zero crossing detector and method therefor 有权
    高精度零交叉检测器及其方法

    公开(公告)号:US07535265B2

    公开(公告)日:2009-05-19

    申请号:US11573152

    申请日:2004-10-20

    IPC分类号: H03K5/153

    CPC分类号: G01R19/175 H02M3/156

    摘要: In one embodiment, a zero crossing detector couples a plurality of comparators in parallel and operates at least a portion of the comparators at different time periods.

    摘要翻译: 在一个实施例中,零交叉检测器并联耦合多个比较器并且在不同时间段操作至少一部分比较器。

    Method of forming a power system and structure therefor
    2.
    发明授权
    Method of forming a power system and structure therefor 有权
    形成电力系统及其结构的方法

    公开(公告)号:US06798178B1

    公开(公告)日:2004-09-28

    申请号:US10388252

    申请日:2003-03-12

    IPC分类号: G05F140

    CPC分类号: H02M3/156 H02M2001/0045

    摘要: A power controller (10) of a power system switches between operating in a linear operational mode and a non-linear operational mode. The power controller (10) disables an output transistor (40) and removes a linear drive signal from the output transistor (40) to terminate operation in the linear operational mode. Prior to enabling operation in the non-linear operational mode, the power controller (10) adjusts a value of an error voltage in order to minimize overshoot in the output voltage during the mode switch.

    摘要翻译: 电力系统的功率控制器(10)在线性操作模式和非线性操作模式之间切换。 功率控制器(10)禁用输出晶体管(40)并从输出晶体管(40)去除线性驱动信号以终止在线性操作模式下的操作。 在非线性操作模式下使能操作之前,功率控制器(10)调整误差电压的值,以便最小化模式切换期间输出电压的过冲。

    High Accuracy Zero Crossing Detector and Method Therefor
    3.
    发明申请
    High Accuracy Zero Crossing Detector and Method Therefor 有权
    高精度零交叉检测器及其方法

    公开(公告)号:US20080164914A1

    公开(公告)日:2008-07-10

    申请号:US11573152

    申请日:2004-10-20

    IPC分类号: H03K5/1536

    CPC分类号: G01R19/175 H02M3/156

    摘要: In one embodiment, a zero crossing detector couples a plurality of comparators in parallel and operates at least a portion of the comparators at different time periods.

    摘要翻译: 在一个实施例中,零交叉检测器并联耦合多个比较器并且在不同时间段操作至少一部分比较器。

    Power supply circuit and method
    4.
    发明授权
    Power supply circuit and method 有权
    电源电路及方法

    公开(公告)号:US06424203B1

    公开(公告)日:2002-07-23

    申请号:US09773469

    申请日:2001-02-02

    IPC分类号: G05F110

    CPC分类号: G06K7/0008 H03K2217/0018

    摘要: An integrated power supply (106) is formed on a semiconductor substrate (200). A first switch (150) is formed in a well region (155) of the semiconductor substrate to have a conduction path (211) for coupling a supply voltage (VBAT) to a node (116). A second switch (152) operates in response to a first control signal (COMP) for coupling the node to the well region when a potential of the node is greater than the supply voltage.

    摘要翻译: 集成电源(106)形成在半导体衬底(200)上。 第一开关(150)形成在半导体衬底的阱区(155)中,以具有用于将电源电压(VBAT)耦合到节点(116)的导通路径(211)。 响应于第一控制信号(COMP),当节点的电位大于电源电压时,第二开关(152)用于将节点耦合到阱区。

    LED current controller and method therefor
    5.
    发明授权
    LED current controller and method therefor 有权
    LED电流控制器及其方法

    公开(公告)号:US07688009B2

    公开(公告)日:2010-03-30

    申请号:US11813985

    申请日:2006-06-29

    IPC分类号: H05B37/02

    摘要: In one embodiment, an LED current control circuit is configured with a sample and hold circuit that samples an error signal of an error amplifier during one time and holds the sampled value during a second time.

    摘要翻译: 在一个实施例中,LED电流控制电路配置有采样和保持电路,其在一次期间对误差放大器的误差信号进行采样,并在第二时间保持采样值。

    LED CURRENT CONTROLLER AND METHOD THEREFOR
    6.
    发明申请
    LED CURRENT CONTROLLER AND METHOD THEREFOR 有权
    LED电流控制器及其方法

    公开(公告)号:US20090284171A1

    公开(公告)日:2009-11-19

    申请号:US11813985

    申请日:2006-06-29

    IPC分类号: H05B41/36

    摘要: In one embodiment, an LED current control circuit is configured with a sample and hold circuit that samples an error signal of an error amplifier during one time and holds the sampled value during a second time.

    摘要翻译: 在一个实施例中,LED电流控制电路配置有采样和保持电路,其在一次期间对误差放大器的误差信号进行采样,并在第二时间保持采样值。