Bridge driver for a switching voltage regulator which is operable to soft-switch and hard-switch

    公开(公告)号:US10651733B2

    公开(公告)日:2020-05-12

    申请号:US14810385

    申请日:2015-07-27

    申请人: Intel Corporation

    摘要: Described is an apparatus which comprises: a low-side switch coupled to an output node for providing regulated voltage supply; and a first driver operable to cause the low-side switch to turn off when the output node rises above a first transistor threshold voltage. Described is also a voltage regulator which comprises: a signal generator to generate a pulse-width modulated (PWM) signal; a bridge having a low-side switch coupled to an output node for providing regulated voltage supply according to the PWM signal; a first driver operable to cause the low-side switch to turn off when the output node rises above a first transistor threshold voltage; and a bridge controller to provide control signals to the first driver. The voltage regulator may operate without diode clamps and its operation is self-timed. The voltage regulator also provides tolerance against process variation.

    BRIDGE DRIVER FOR A SWITCHING VOLTAGE REGULATOR
    2.
    发明申请
    BRIDGE DRIVER FOR A SWITCHING VOLTAGE REGULATOR 审中-公开
    用于开关电压调节器的桥式驱动器

    公开(公告)号:US20150333628A1

    公开(公告)日:2015-11-19

    申请号:US14810385

    申请日:2015-07-27

    申请人: Intel Corporation

    IPC分类号: H02M3/158

    摘要: Described is an apparatus which comprises: a low-side switch coupled to an output node for providing regulated voltage supply; and a first driver operable to cause the low-side switch to turn off when the output node rises above a first transistor threshold voltage. Described is also a voltage regulator which comprises: a signal generator to generate a pulse-width modulated (PWM) signal; a bridge having a low-side switch coupled to an output node for providing regulated voltage supply according to the PWM signal; a first driver operable to cause the low-side switch to turn off when the output node rises above a first transistor threshold voltage; and a bridge controller to provide control signals to the first driver. The voltage regulator may operate without diode clamps and its operation is self-timed. The voltage regulator also provides tolerance against process variation.

    摘要翻译: 描述了一种装置,其包括:耦合到输出节点的低侧开关,用于提供稳压电压; 以及第一驱动器,其可操作以在所述输出节点上升到高于第一晶体管阈值电压时使所述低侧开关断开。 还描述了一种电压调节器,其包括:产生脉冲宽度调制(PWM)信号的信号发生器; 具有耦合到输出节点的低侧开关的桥,用于根据所述PWM信号提供稳压电源; 第一驱动器,其可操作以在所述输出节点上升到高于第一晶体管阈值电压时使所述低侧开关断开; 以及桥控制器,用于向第一驱动器提供控制信号。 电压调节器可以在没有二极管钳位的情况下工作,并且其操作是自定时的。 电压调节器还提供了过程变化的公差。