EFFICIENT USE OF ENERGY IN A SWITCHING POWER CONVERTER

    公开(公告)号:US20230208303A1

    公开(公告)日:2023-06-29

    申请号:US18174106

    申请日:2023-02-24

    CPC classification number: H02M3/158 H02M1/08 H02M3/1584 H02M1/008

    Abstract: A system may include a power converter having a maximum allowable input power drawn from a power source, an energy storage element coupled to an output of the power converter at a top plate of the energy storage element, wherein the energy storage element is configured to store excess energy, and control circuitry configured to, when an input power of the power converter exceeds the maximum allowable input power, cause excess energy stored in the energy storage element to be consumed by circuitry coupled to the output of the power converter, and in order to maintain positive voltage headroom for the circuitry coupled to the output of the power converter, selectively couple a bottom plate of the energy storage element to the power source such that excess energy stored by the circuitry coupled to the output of the power converter is consumed from the energy storage device when the input power of the power converter exceeds the maximum allowable input power.

    SENSE RESISTOR AND METHOD FOR FORMING SAME

    公开(公告)号:US20210364560A1

    公开(公告)日:2021-11-25

    申请号:US17118330

    申请日:2020-12-10

    Abstract: An apparatus may include a sense resistor comprising a plurality of parallel-coupled resistor elements, a plurality of positive voltage sense points, and a plurality of negative voltage sense points. A first passive combination network may be configured to combine the plurality of positive voltage sense points into a single positive sense terminal and a second passive combination network may be configured to combine the plurality of negative voltage sense points into a single negative sense terminal. The first passive combination network and the second passive combination network may be arranged such that a sense voltage is measurable between the single positive sense terminal and the single negative sense terminal and a dependence of the sense voltage on a variation in current density in the parallel-coupled resistor elements is minimized.

    EFFICIENT USE OF ENERGY IN A SWITCHING POWER CONVERTER

    公开(公告)号:US20210083578A1

    公开(公告)日:2021-03-18

    申请号:US16916395

    申请日:2020-06-30

    Abstract: A system may include a power converter having a maximum allowable input power drawn from a power source, an energy storage element coupled to an output of the power converter at a top plate of the energy storage element, wherein the energy storage element is configured to store excess energy, and control circuity configured to, when an input power of the power converter exceeds the maximum allowable input power, cause excess energy stored in the energy storage element to be consumed by circuitry coupled to the output of the power converter, and in order to maintain positive voltage headroom for the circuitry coupled to the output of the power converter, selectively couple a bottom plate of the energy storage element to the power source such that excess energy stored by the circuitry coupled to the output of the power converter is consumed from the energy storage device when the input power of the power converter exceeds the maximum allowable input power.

    HIGH EFFICIENCY TRANSDUCER DRIVER
    17.
    发明申请

    公开(公告)号:US20180376252A1

    公开(公告)日:2018-12-27

    申请号:US16001596

    申请日:2018-06-06

    Abstract: A system may include a charge pump configured to transfer electrical energy from a source of electrical energy coupled to an input of the charge pump to an energy storage device coupled to an output of the charge pump and configured to store the electrical energy transferred from the source of electrical energy, a power converter configured to transfer electrical energy from the energy storage device to an output of the power converter, wherein the power converter comprises a first plurality of switches and a power inductor arranged such that one switch of the first plurality of switches is coupled between the power inductor and the output of the charge pump, an output stage configured to transfer electrical energy between the output of the power converter to a load coupled to an output of the output stage, the output stage comprising a second plurality of switches, and a controller configured to generate an output voltage at the output of the output stage as an amplified version of an input signal.

Patent Agency Ranking