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公开(公告)号：US11742764B2
公开(公告)日：2023-08-29
申请号：US17648052
申请日：2022-01-14
CPC分类号： H02M3/33569 , H02M1/0043 , H02M1/0054 , H02M1/0064 , H02M1/36 , H02M3/01 , H02M3/072 , H02M3/1586 , H02M3/33576 , H02M1/44
摘要： A resonant power converter includes a capacitive divider circuit, a coupled inductor, and N switching stages, where N is an integer greater than two. The coupled inductor includes N windings, and total leakage inductance of the coupled inductor and equivalent capacitance of the capacitive divider circuit collectively form a resonant tank circuit of the resonant power converter. Each switching stage is electrically coupled between a respective one of the N windings of the coupled inductor and the capacitive divider circuit. The capacitive divider circuit may include one or more resonant capacitors.
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公开(公告)号：US20220247321A1
公开(公告)日：2022-08-04
申请号：US17648052
申请日：2022-01-14
摘要： A resonant power converter includes a capacitive divider circuit, a coupled inductor, and N switching stages, where N is an integer greater than two. The coupled inductor includes N windings, and total leakage inductance of the coupled inductor and equivalent capacitance of the capacitive divider circuit collectively form a resonant tank circuit of the resonant power converter. Each switching stage is electrically coupled between a respective one of the N windings of the coupled inductor and the capacitive divider circuit. The capacitive divider circuit may include one or more resonant capacitors.
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公开(公告)号：US11742767B2
公开(公告)日：2023-08-29
申请号：US17360052
申请日：2021-06-28
发明人： Laszlo Lipcsei
CPC分类号： H02M3/33576 , H01F27/38 , H02M1/0064 , H02M3/33507 , H02M3/33592
摘要： A flux-corrected switching power converter includes a first transformer, a first switching stage, a controller, and a flux correction current source. The first transformer includes a first magnetic core, a first primary winding, and a first secondary winding, and the first switching stage is electrically coupled to the first secondary winding. The controller is configured to control switching of at least the first switching stage. The flux correction current source is electrically coupled to the first primary winding, and the flux correction current source is configured to inject current into the first primary winding to at least partially cancel magnetic flux in the first magnetic core that is generated by current flowing through the first secondary winding.
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公开(公告)号：US20220407466A1
公开(公告)日：2022-12-22
申请号：US17806540
申请日：2022-06-13
摘要： A tracking power supply includes a power conversion subsystem and one or more tracking subsystems. The power conversion subsystem is configured to generate N power rails, where N is an integer greater than one. Each tracking subsystem includes a switching network and a controller. The switching network is electrically coupled between each of the N power rails and a tracking power rail of the tracking power supply. The controller is configured to control operation of the switching network according to a tracking signal associated with a load powered by the tracking power supply, such that a voltage at the tracking power rail is one of two or more values, as determined at least partially based on the tracking signal. The controller is further configured to adjust voltage of at least one of the N power rails.
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公开(公告)号：US20210408925A1
公开(公告)日：2021-12-30
申请号：US17360052
申请日：2021-06-28
发明人： Laszlo Lipcsei
摘要： A flux-corrected switching power converter includes a first transformer, a first switching stage, a controller, and a flux correction current source. The first transformer includes a first magnetic core, a first primary winding, and a first secondary winding, and the first switching stage is electrically coupled to the first secondary winding. The controller is configured to control switching of at least the first switching stage. The flux correction current source is electrically coupled to the first primary winding, and the flux correction current source is configured to inject current into the first primary winding to at least partially cancel magnetic flux in the first magnetic core that is generated by current flowing through the first secondary winding.
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