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    SMOOTH TRANSITIONING BUCK-BOOST DC-DC CONVERTER
    3.
    发明申请
    SMOOTH TRANSITIONING BUCK-BOOST DC-DC CONVERTER 有权
    SMOOTH TRANSITIONING BUCK-BOOST DC-DC转换器

    公开(公告)号：US20160028305A1

    公开(公告)日：2016-01-28

    申请号：US14808119

    申请日：2015-07-24

    申请人： RF Micro Devices, Inc.

    发明人： Michael R. Kay ,  Manbir Singh Nag

    IPC分类号： H02M3/04

    CPC分类号： H02M3/1582 ,  H02M3/07 ,  H02M3/1584 ,  H02M2001/0003 ,  H02M2001/0045 ,  H02M2001/4291 ,  H02M2003/1586 ,  H03F3/38

    摘要： A buck-boost DC-DC converter, which includes converter control circuitry, converter switching circuitry, and a first inductive element, is disclosed. The converter control circuitry provides a buck mode timing signal and a boost mode timing signal. The converter switching circuitry provides a switching output signal. During a buck mode of the buck-boost DC-DC converter, when a buck pulse-width of the switching output signal is less than a buck pulse-width threshold, the buck pulse-width is limited based on both the buck mode timing signal and the boost mode timing signal. During a boost mode of the buck-boost DC-DC converter, when a boost pulse-width of the switching output signal is less than a boost pulse-width threshold, the boost pulse-width is limited based on both the buck mode timing signal and the boost mode timing signal. The first inductive element receives and filters the switching output signal to provide a converter output signal.

    摘要翻译： 公开了包括转换器控制电路，转换器开关电路和第一电感元件的降压 - 升压DC-DC转换器。 转换器控制电路提供降压模式定时信号和升压模式定时信号。 转换器切换电路提供开关输出信号。 在降压 - 升压DC-DC转换器的降压模式期间，当开关输出信号的降压脉冲宽度小于降压脉冲宽度阈值时，降压脉冲宽度基于降压模式定时信号 和升压模式定时信号。 在降压 - 升压DC-DC转换器的升压模式期间，当开关输出信号的升压脉冲宽度小于升压脉冲宽度阈值时，升压脉冲宽度基于两个降压模式定时信号 和升压模式定时信号。 第一电感元件接收和滤波开关输出信号以提供转换器输出信号。

    Power source multiplexer
    8.
    发明授权
    Power source multiplexer 有权
    电源多路复用器

    公开(公告)号：US08981839B2

    公开(公告)日：2015-03-17

    申请号：US13914888

    申请日：2013-06-11

    申请人： RF Micro Devices, Inc.

    发明人： Michael R. Kay ,  Manbir Singh Nag ,  Philippe Gorisse

    IPC分类号： G05F1/10 ,  H03K17/687

    CPC分类号： H03K17/687 ,  G06F1/263 ,  Y10T307/50

    摘要： Circuitry, which includes a first switching transistor element having a first gate, a second switching transistor element having a second gate, a third switching transistor element having a third gate, and a fourth switching transistor element having a fourth gate, is disclosed. The first switching transistor element and the third switching transistor element are coupled in series between a first power source and a first downstream circuit. The second switching transistor element and the fourth switching transistor element are coupled in series between a second power source and the first downstream circuit. A voltage swing at the first gate and a voltage swing at the second gate are both about equal to a first voltage magnitude. A voltage swing at the third gate and a voltage swing at the fourth gate are both about equal to a second voltage magnitude.

    摘要翻译： 公开了一种电路，其包括具有第一栅极的第一开关晶体管元件，具有第二栅极的第二开关晶体管元件，具有第三栅极的第三开关晶体管元件和具有第四栅极的第四开关晶体管元件。 第一开关晶体管元件和第三开关晶体管元件串联在第一电源和第一下游电路之间。 第二开关晶体管元件和第四开关晶体管元件串联耦合在第二电源和第一下游电路之间。 第一栅极处的电压摆动和第二栅极处的电压摆动都大致等于第一电压幅度。 第三栅极处的电压摆动和第四栅极处的电压摆动大约等于第二电压幅度。