Switching regulator and control method thereof
    1.
    发明申请
    Switching regulator and control method thereof 审中-公开
    开关调节器及其控制方法

    公开(公告)号:US20100026256A1

    公开(公告)日:2010-02-04

    申请号:US12292185

    申请日:2008-11-13

    IPC分类号: G05F1/10

    摘要: A switching regulator may operate in a synchronous mode or an asynchronous mode. When the load current is higher than a threshold, the switching regulator switches a pair of serially connected high side and low side switches with a pulse width modulation signal. When the load current is lower than the threshold, the pulse width modulation signal is blocked not to switch the low side switch, the switching regulator switches only the high side switch with the pulse width modulation signal, the low side switch remains off, and a diode serially connected to the high side switch acts as a rectifier.

    摘要翻译: 开关调节器可以以同步模式或异步模式工作。 当负载电流高于阈值时,开关稳压器用脉冲宽度调制信号切换一对串联的高侧和低压开关。 当负载电流低于阈值时,脉冲宽度调制信号被阻止而不切换低压侧开关,开关稳压器仅利用脉宽调制信号切换高侧开关,低侧开关保持关断, 串联连接到高侧开关的二极管充当整流器。

    Mutual blanking for a multi-channel converter
    2.
    发明授权
    Mutual blanking for a multi-channel converter 有权
    多通道转换器的相互消隐

    公开(公告)号:US07956585B2

    公开(公告)日:2011-06-07

    申请号:US12216727

    申请日:2008-07-10

    IPC分类号: G05F1/10

    摘要: A shutter circuit is provided for a multi-channel converter to blank the switching noise produced by the switching of the converter. The shutter circuit monitors the switching of the switches in the output stages of the converter, and when one channel performs switching, the shutter circuit will send a signal to other channels to block the current sensors thereof. The current sensors are so blocked for a period not to sense the switching noise. The mutual interference between the channels due to the switching noise of the converter is eliminated.

    摘要翻译: 为多通道转换器提供快门电路,以消除由转换器的切换产生的开关噪声。 快门电路监视转换器的输出级中的开关的切换,并且当一个通道执行切换时,快门电路将向其他通道发送信号以阻止其电流传感器。 电流传感器被阻塞一段时间,无法感测开关噪声。 消除了由转换器的开关噪声引起的通道之间的相互干扰。

    Mutual blanking for a multi-channel converter
    3.
    发明申请
    Mutual blanking for a multi-channel converter 有权
    多通道转换器的相互消隐

    公开(公告)号:US20090015069A1

    公开(公告)日:2009-01-15

    申请号:US12216727

    申请日:2008-07-10

    IPC分类号: H02J1/00

    摘要: A shutter circuit is provided for a multi-channel converter to blank the switching noise produced by the switching of the converter. The shutter circuit monitors the switching of the switches in the output stages of the converter, and when one channel performs switching, the shutter circuit will send a signal to other channels to block the current sensors thereof. The current sensors are so blocked for a period not to sense the switching noise. The mutual interference between the channels due to the switching noise of the converter is eliminated.

    摘要翻译: 为多通道转换器提供快门电路,以消除由转换器的切换产生的开关噪声。 快门电路监视转换器的输出级中的开关的切换,并且当一个通道执行切换时,快门电路将向其他通道发送信号以阻止其电流传感器。 电流传感器被阻塞一段时间,无法感测开关噪声。 消除了由转换器的开关噪声引起的通道之间的相互干扰。

    Level shift circuit and method for the same
    4.
    发明授权
    Level shift circuit and method for the same 有权
    电平移位电路及方法相同

    公开(公告)号:US07382172B2

    公开(公告)日:2008-06-03

    申请号:US11497587

    申请日:2006-08-02

    IPC分类号: H03L5/00

    CPC分类号: H03K3/35613 H03K3/012

    摘要: The present invention discloses a level shift circuit which comprises: level shift means for receiving an input of a first operational voltage and generating an output of a second operational voltage; and a current path connecting with a source of the second operational voltage and providing current to the output of the level shift means to speed up output level switching. The circuit preferably further comprises a power consumption control circuit for stopping excess power consumption when the output of the level shift means has substantially accomplished level switching.

    摘要翻译: 本发明公开了一种电平移位电路,包括:电平移位装置,用于接收第一工作电压的输入并产生第二工作电压的输出; 以及与第二工作电压源连接并将电流提供给电平移位装置的输出的电流路径,以加速输出电平切换。 电路优选地还包括功率消耗控制电路,用于在电平移位装置的输出基本上实现电平切换时停止多余的功率消耗。

    Protection to avoid abnormal operation caused by a shorted parameter setting pin of an integrated circuit
    5.
    发明授权
    Protection to avoid abnormal operation caused by a shorted parameter setting pin of an integrated circuit 有权
    避免由集成电路的参数设置短路引起的异常操作

    公开(公告)号:US08687331B2

    公开(公告)日:2014-04-01

    申请号:US13092282

    申请日:2011-04-22

    IPC分类号: H02H3/00

    CPC分类号: H02M1/32

    摘要: For a system to avoid abnormal operation caused by a shorted parameter setting pin of an integrated circuit, a protection apparatus and method apply a buffered reference voltage to the parameter setting pin to define an internal parameter of the integrated circuit by the buffered reference voltage and an external element connected to the parameter setting pin, and detect the rapid variation of the internal parameter to trigger a shutdown signal or slow down the speed of the variation of the internal parameter reflected to an adjustable signal of the integrated circuit.

    摘要翻译: 为了避免由集成电路的短路参数设置引脚引起的异常操作的系统,保护装置和方法将缓冲的参考电压施加到参数设置引脚,以通过缓冲的参考电压定义集成电路的内部参数,并且 外部元件连接到参数设置引脚,并检测内部参数的快速变化以触发关断信号或将内部参数变化的速度降低到集成电路的可调信号。

    Level shift circuit and method for the same
    8.
    发明申请
    Level shift circuit and method for the same 有权
    电平移位电路及方法相同

    公开(公告)号:US20070290736A1

    公开(公告)日:2007-12-20

    申请号:US11497587

    申请日:2006-08-02

    IPC分类号: H03L5/00

    CPC分类号: H03K3/35613 H03K3/012

    摘要: The present invention discloses a level shift circuit which comprises: level shift means for receiving an input of a first operational voltage and generating an output of a second operational voltage; and a current path connecting with a source of the second operational voltage and providing current to the output of the level shift means to speed up output level switching. The circuit preferably further comprises a power consumption control circuit for stopping excess power consumption when the output of the level shift means has substantially accomplished level switching.

    摘要翻译: 本发明公开了一种电平移位电路,包括:电平移位装置,用于接收第一工作电压的输入并产生第二工作电压的输出; 以及与第二工作电压源连接并将电流提供给电平移位装置的输出的电流路径,以加速输出电平切换。 电路优选地还包括功率消耗控制电路,用于在电平移位装置的输出基本上实现电平切换时停止多余的功率消耗。

    Phase interleaving control method for a multi-channel regulator system
    9.
    发明授权
    Phase interleaving control method for a multi-channel regulator system 有权
    多通道调节器系统的相位交错控制方法

    公开(公告)号:US08451887B2

    公开(公告)日:2013-05-28

    申请号:US13087466

    申请日:2011-04-15

    IPC分类号: H03K7/08

    摘要: A multi-channel regulator system includes serially connected PWM integrated circuits, each of which determines a PWM signal for a respective channel to operate therewith, and individually controls its operation mode according to whether or not an external clock is detected. Therefore, each channel will not be limited to operate under a constant mode and could become a master channel or a slave channel. Additionally, each of the PWM integrated circuits generates a phase shifted synchronous clock for its next channel during it is enabled, and thus all the channels operate in a synchronous but phase interleaving manner.

    摘要翻译: 多通道稳压器系统包括串联连接的PWM集成电路,每个PWM集成电路确定用于相应通道的PWM信号以进行操作,并且根据是否检测到外部时钟单独地控制其操作模式。 因此,每个通道不限于在恒定模式下工作,并且可以成为主通道或从通道。 此外,每个PWM集成电路在其使能期间产生用于其下一个通道的相移同步时钟,因此所有通道以同步但相位交错的方式工作。

    Circuit and method for controlling light emitting device, and integrated circuit therefor
    10.
    发明授权
    Circuit and method for controlling light emitting device, and integrated circuit therefor 有权
    用于控制发光器件的电路和方法及其集成电路

    公开(公告)号:US08179059B2

    公开(公告)日:2012-05-15

    申请号:US12579802

    申请日:2009-10-15

    摘要: The present invention discloses a circuit and a method for controlling a light emitting device, and an integrated circuit therefore. The circuit for controlling a light emitting device comprises: a power stage controller circuit controlling a power stage circuit to convert an input voltage to an output voltage, which is supplied to at least one light emitting device channel including at least one light emitting device; a transistor switch in the light emitting device channel; and a current source circuit controlling a current through the light emitting device channel, wherein the power stage controller circuit and the current source circuit are integrated in an integrated circuit which provides a control voltage to control a gate of the transistor switch.

    摘要翻译: 本发明公开了一种用于控制发光器件的电路和方法,以及集成电路。 用于控制发光器件的电路包括:功率级控制器电路,其控制功率级电路以将输入电压转换为输出电压,所述输出电压被提供给包括至少一个发光器件的至少一个发光器件通道; 发光器件通道中的晶体管开关; 以及电流源电路,其控制通过所述发光器件沟道的电流,其中所述功率级控制器电路和所述电流源电路集成在提供控制电压以控制所述晶体管开关的栅极的集成电路中。