Reduced power consumption for LLC resonant converter under light load

    公开(公告)号:US11594948B2

    公开(公告)日:2023-02-28

    申请号:US17171527

    申请日:2021-02-09

    摘要: This disclosure provides a resonant LLC power converter unit to provide a plurality of power outputs. The power converter unit includes multiple transformers arranged such that at least one primary winding of each transformer is connected in parallel and configured to provide a power output to a secondary that powers one of the plurality of outputs. One of these transformers, or a parallel choke across an output bus, can be used to provide lower power to the output bus during a standby state (i.e., during a light- or no-load condition). The power converter unit includes a first switching section for providing a first power input during normal operation and a second switching section for providing a second power input during no- or light-load conditions.

    REDUCED POWER CONSUMPTION FOR LLC RESONANT CONVERTER UNDER LIGHT LOAD

    公开(公告)号:US20220255442A1

    公开(公告)日:2022-08-11

    申请号:US17171527

    申请日:2021-02-09

    IPC分类号: H02M3/335 H02M1/00 H02M1/08

    摘要: This disclosure provides a resonant LLC power converter unit to provide a plurality of power outputs. The power converter unit includes multiple transformers arranged such that at least one primary winding of each transformer is connected in parallel and configured to provide a power output to a secondary that powers one of the plurality of outputs. One of these transformers, or a parallel choke across an output bus, can be used to provide lower power to the output bus during a standby state (i.e., during a light- or no-load condition). The power converter unit includes a first switching section for providing a first power input during normal operation and a second switching section for providing a second power input during no- or light-load conditions.