Single-stage isolated DC-DC converters

    公开(公告)号:US11411502B2

    公开(公告)日:2022-08-09

    申请号:US17081071

    申请日:2020-10-27

    Abstract: According to one aspect of the present disclosure, a single-stage converter includes a rectifying circuit and a buck-boost circuit. The buck-boost circuit includes an inductor with a center tap configured to supply an output of the buck-boost circuit to the rectifying circuit. The buck-boost circuit also includes first and second interleaved arms arranged in parallel with a voltage input of the single-stage converter. The first and second interleaved arms are each coupled to the inductor and include a plurality of switches operable to control the output of the buck-boost circuit.

    METHOD FOR CONTROLLING CONVERTER AND CONVERTER SYSTEM

    公开(公告)号:US20240106355A1

    公开(公告)日:2024-03-28

    申请号:US18468157

    申请日:2023-09-15

    CPC classification number: H02M7/5395 H02M1/081 H02M1/123 H02M1/126

    Abstract: Embodiments of the present disclosure provide a method for controlling a converter and a converter system. The method includes obtaining voltage signals indicating phase voltages of three phases at AC side of a converter, determining, based on the voltage signals, carrier signals of a three-phase switching branches of the converter, wherein carrier signals of two of three phases have the same phase with each other and have a different phase from a carrier signal of the rest phase of the three phases, and magnitude of a phase voltage of the rest phase is between the phase voltages of the two phases, and generating, based on the determined carrier signals and modulation wave signals of the three-phase switching branches, control signals of the three-phase switching branch.

    SYSTEMS AND METHODS FOR THERMAL MANAGEMENT USING MATRIX COLDPLATES

    公开(公告)号:US20220099389A1

    公开(公告)日:2022-03-31

    申请号:US17031963

    申请日:2020-09-25

    Abstract: Systems and methods for thermal management using matrix coldplates are disclosed. One illustrative method may comprise directing a flow of coolant through a coldplate comprising a plurality of parallel passages by selectively connecting portions of the parallel passages to one another to create one or more regions of parallel flow, serial flow, or blocked flow in the coldplate. Selectively connecting portions of the parallel passages may comprise machining a plurality of transverse passages into the cold plate such that each of the transverse passages intersects at least some of the parallel passages. Valves may be installed to interact between the parallel and transverse passages to create and modify the different flow regions.

    TECHNOLOGIES FOR CONTROLLING AC-TO-DC CONVERTERS

    公开(公告)号:US20210175795A1

    公开(公告)日:2021-06-10

    申请号:US16705209

    申请日:2019-12-05

    Inventor: Sanbao Zheng

    Abstract: Technologies for controlling AC-to-DC converters are disclosed. In one illustrative embodiment, a controller of an AC-to-DC converter measures two voltage levels of a split voltage bus of a power factor correction (PFC) circuit. The controller controls current drawn from the positive and negative terminals of the PFC circuit by a DC-to-DC converter. By controlling the current drawn from the two terminals, the controller can control the voltages on the terminals to be equal (but opposite).

    WIDE-RANGE GAIN CONVERTERS
    8.
    发明申请

    公开(公告)号:US20210050793A1

    公开(公告)日:2021-02-18

    申请号:US17087795

    申请日:2020-11-03

    Abstract: According to an aspect of this disclosure, a circuit includes a voltage source and an output load, first and second resonant modules disposed between the voltage source and the output load, and first and second transformers. The circuit is further arranged such that the first transformer is disposed between the first resonant module and the output load, and the second transformer is disposed between the second resonant module and the output load. The circuit also includes a plurality of half-bridges coupled between the first and second resonant modules and the voltage source. The circuit further includes a voltage divider disposed between the voltage source and the plurality of half-bridges.

    Printed circuit boards for power supplies

    公开(公告)号:US10827602B1

    公开(公告)日:2020-11-03

    申请号:US16806058

    申请日:2020-03-02

    Abstract: At least one embodiment of a power supply includes a printed circuit board formed from a plurality of double-sided laminates and a plurality of thermally conductive, electrically insulating pre-preg sheets interleaved with the plurality of double-sided laminates. Each double-sided laminate illustratively includes an electrically insulating core, a first patterned layer of electrically conductive material arranged on a first side of the electrically insulating core, and a second patterned layer of electrically conductive material arranged on a second side of the electrically insulating core opposite the first side. The printed circuit board illustratively further includes a thermally conductive, electrically insulating additive resin filling spaces between the electrically conductive material in both the first and second patterned layers of each of the plurality of double-sided laminates, such that the electrically conductive material and the additive resin together form planar surfaces that contact the plurality of pre-preg sheets.

    Single-stage isolated DC-DC converters with interleaved arms

    公开(公告)号:US10819244B1

    公开(公告)日:2020-10-27

    申请号:US16447456

    申请日:2019-06-20

    Abstract: According to one aspect of the present disclosure, a single-stage converter includes a rectifying circuit and a buck-boost circuit. The buck-boost circuit includes an inductor with a center tap configured to supply an output of the buck-boost circuit to the rectifying circuit. The buck-boost circuit also includes first and second interleaved arms arranged in parallel with a voltage input of the single-stage converter. The first and second interleaved arms are each coupled to the inductor and include a plurality of switches operable to control the output of the buck-boost circuit.

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