Inverting buck-boost power converter

    公开(公告)号:US10447161B2

    公开(公告)日:2019-10-15

    申请号:US15837914

    申请日:2017-12-11

    Abstract: In an example, a dual-phase inverting buck-boost power converter for use with at least first and second energy storage elements includes an inverting buck-boost power converter and an inverting boost converter. In an example, the inverting buck-boost power converter is coupled between an input node and an output node of the dual-phase inverting buck-boost power converter and includes a first plurality of switches operable to couple to the first energy storage element, wherein the inverting buck-boost power converter is operable to supply a first load current. In an example, the inverting boost converter is coupled in parallel with the inverting buck-boost power converter between the input node and the output node of the dual-phase inverting buck-boost power converter and includes a second plurality of switches operable to couple to the first and the second energy storage elements, wherein the inverting boost converter is operable to supply a second load current.

    MULTILEVEL BOOST DC TO DC CONVERTER CIRCUIT
    3.
    发明申请
    MULTILEVEL BOOST DC TO DC CONVERTER CIRCUIT 有权
    多电平升压DC-DC转换器电路

    公开(公告)号:US20160329809A1

    公开(公告)日:2016-11-10

    申请号:US14840183

    申请日:2015-08-31

    CPC classification number: H02M3/158 H02M2001/0003

    Abstract: Described examples include DC to DC converters and systems with switching circuitry formed by four series-connected switches, inductors connected between the ends of the switching circuitry and corresponding output nodes, and with a flying capacitor coupled across interior switches of the switching circuitry and a second capacitor coupled across the ends of the switching circuitry. A control circuit operates the switching circuit to control a voltage signal across the output nodes using a first clock signal and a phase shifted second clock signal to reduce output ripple current and enhance converter efficiency using valley current control. The output inductors are wound on a common core in certain examples.

    Abstract translation: 所描述的示例包括DC-DC转换器和具有由四个串联连接的开关构成的开关电路的系统,连接在开关电路的端部和对应的输出节点之间的电感器,以及耦合在开关电路的内部开关和第二 电容器耦合在开关电路的两端。 控制电路操作开关电路以使用第一时钟信号和相移的第二时钟信号跨输出节点控制电压信号,以减少输出纹波电流并且使用谷值电流控制来提高转换器效率。 在某些实例中,输出电感器缠绕在公共芯上。

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