Multi-level power converter with software control of switches and deadtime

    公开(公告)号:US11831235B1

    公开(公告)日:2023-11-28

    申请号:US18315259

    申请日:2023-05-10

    Applicant: dcbel Inc.

    CPC classification number: H02M1/385

    Abstract: A system for optimizing dead time of switches, for example in power converters, using software. The system is first calibrated. The system determines the state that switches should be in. If the switch state needs to be changed, the system determines an optimized dead time which needs to be waited between turning one switch off and a complimentary switch on. The system controls the switches to turn on or off switches and waiting only the duration of the optimized dead time.

    ELECTRIC VEHICLE BATTERY CHARGER
    4.
    发明申请

    公开(公告)号:US20250010731A1

    公开(公告)日:2025-01-09

    申请号:US18897482

    申请日:2024-09-26

    Applicant: DCBEL INC.

    Abstract: A battery charger capable of receiving AC power and delivering both AC and DC power to an electric power storage battery in accordance to different embodiments disclosed herein using a rectifier circuit supplying the DC load and absorbing power as a five-level active rectifier with low harmonics on the AC input. In one aspect, the battery charger may have a bidirectional rectifier/inverter converter providing power conversion between a DC source and AC enabling the user to not only charge an electrical vehicle (“EV”) but also convert the energy charged in the EV/battery or solar panel to AC for use.

    Cooling system for use in power converters

    公开(公告)号:US12301136B2

    公开(公告)日:2025-05-13

    申请号:US18660748

    申请日:2024-05-10

    Applicant: DCBEL INC.

    Abstract: A power conversion apparatus with modified cooling properties has been disclosed. The apparatus comprises an AC port, at least one DC port, a chassis, at least one power conversion module mounted in the chassis connectable to off-board conductors and the AC and the at least one DC ports, a module heat sink attached to each one of the at least one power conversion module for cooling the module, wherein the off-board inductors are mounted in the chassis together and separate from modules with one or more of an inductor heat sink and cooling fluid circulator for cooling the inductors.

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