-
1.发明公开公开(公告)号：US20240322694A1
公开(公告)日：2024-09-26
申请号：US18598849
申请日：2024-03-07
发明人： Alexandr Ikriannikov
CPC分类号： H02M3/33507 , H02M1/0064 , H02M1/0095 , H02M1/14 , H02M1/40
摘要： A two-stage switching power converter includes a first power stage, a second power stage electrically coupled in series with the first power stage, and a controller. The first power stage includes a first power transfer winding, and the second power stage includes a second power transfer winding that is magnetically coupled to the first power transfer winding. The controller is configured to (a) control switching of the second power stage to regulate at least one parameter of the two-stage switching power converter and (b) control switching of the first power stage such that the first power stage switches in a complementary manner with respect to the second power stage.
-
公开(公告)号：US11756725B2
公开(公告)日：2023-09-12
申请号：US17321476
申请日：2021-05-16
CPC分类号： H01F27/346 , H01F27/24 , H01F27/28 , H02M3/04
摘要： A switching power converter includes a first switching stage, a second switching stage, a coupled inductor, and a boost winding. The coupled inductor includes a first phase winding, a second phase winding, and a magnetic core. The first phase winding is wound at least partially around a first portion of the magnetic core, and the first phase winding is electrically coupled to the first switching stage. The second phase winding is wound at least partially around a second portion of the magnetic core, and the second phase winding is electrically coupled to the second switching stage. The boost winding forms at least one turn such that mutual magnetic flux associated with each of the first and second phase windings flows through the at least one turn.
-
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.
-
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.
-
公开(公告)号：US20170263369A1
公开(公告)日：2017-09-14
申请号：US15456011
申请日：2017-03-10
CPC分类号： H01F27/24 , H01F3/12 , H01F27/2823 , H01F27/324 , H01F38/08 , H02M1/40 , H02M3/33576 , H02M2001/0064
摘要： A switching power converter includes an integrated transformer and coupled inductor, first and second primary switching circuits, and a master controller. The integrated transformer and coupled inductor includes (a) first and second primary windings electrically coupled in series and (b) first and second secondary windings. The first and second primary switching circuits are electrically coupled to an end of the first primary winding and an end of the second primary winding, respectively. The master controller is configured to determine a magnitude of magnetizing current of the integrated transformer and coupled inductor from a difference between magnitude of current flowing through the first secondary winding and magnitude of current flowing through the second secondary winding, when the first and second primary switching circuits are in their respective off-states.
-
6.发明公开公开(公告)号：US20230378874A1
公开(公告)日：2023-11-23
申请号：US18305575
申请日：2023-04-24
CPC分类号： H02M3/1584 , H02M1/14
摘要： A method for operating a switching power converter to reduce ripple current magnitude includes (a) controlling duty cycle of a plurality power stages of the switching power converter to regulate at least one parameter of the switching power converter, each power stage including a respective power transformer, and (b) controlling an injection stage of the switching power converter to reduce voltage across leakage inductance of each power transformer, the injection stage including an injection transformer that is electrically coupled to a respective secondary winding of each power transformer.
-
公开(公告)号：US11615915B2
公开(公告)日：2023-03-28
申请号：US16593108
申请日：2019-10-04
发明人： Ilija Jergovic , Alexandr Ikriannikov , Di Yao
摘要： A coupled inductor includes a ladder magnetic core including (a) a first rail and a second rail separated from each other in a first direction and (b) a plurality of rungs separated from each other in a second direction. The second direction is orthogonal to the first direction, and each rung of the plurality of rungs is disposed between the first rail and the second rail in the first direction. The coupled inductor further includes a plurality of windings, where each winding of the plurality of windings is partially wound around a respective one of the plurality of rungs such that each winding of the plurality of windings does not overlap with itself when the coupled inductor is viewed cross-sectionally in a third direction. The third direction is orthogonal to each of the first direction and the second direction.
-
公开(公告)号：US20220181067A1
公开(公告)日：2022-06-09
申请号：US17454457
申请日：2021-11-10
发明人： Alexandr Ikriannikov
摘要： A switching power converter includes an integrated inductor assembly, a first switching stage, and a second switching stage. The integrated inductor assembly includes a magnetic core and first and second windings disposed at least partially in the magnetic core. The second winding is separated from the first winding by a separation portion of the magnetic core. The first switching stage is configured such that a first current flowing from the first switching stage to the first winding induces first magnetic flux flowing through the separation portion of the magnetic core. The second switching stage is configured such that a second current flowing from the second switching stage to the second winding induces second magnetic flux flowing through the separation portion of the magnetic core that opposes the first magnetic flux in the separation portion of the magnetic core.
-
公开(公告)号：US20220158558A1
公开(公告)日：2022-05-19
申请号：US17451632
申请日：2021-10-20
发明人： Alexandr Ikriannikov , Di Yao
摘要： A coupled inductor includes first and second magnetic rails, a plurality of connecting magnetic elements, and a plurality of windings. The first and second magnetic rails are separated from each other in a first direction, and the first magnetic rail has a first cross-sectional area A1 as seen when viewed in the first direction. Each connecting magnetic element is disposed between the first and second magnetic rails in the first direction. The plurality of connecting magnetic elements collectively have a second cross-sectional area A2 as seen when viewed in the first direction, and a ratio of A2/(A1−A2) is at least 1.5. A respective winding is wound at least partially around each connecting magnetic element.
-
公开(公告)号：US20210392745A1
公开(公告)日：2021-12-16
申请号：US17225875
申请日：2021-04-08
发明人： Alexandr Ikriannikov
IPC分类号： H05K1/02 , H01L23/498 , H05K1/18
摘要： A circuit assembly includes a first substrate including a first outer surface, a first capacitor disposed on the first outer surface, and a first metallic bar. The first capacitor has a first capacitor thickness in a first direction orthogonal to the first outer surface. The first metallic bar has a first bar thickness in the first direction, the first bar thickness being greater than the first capacitor thickness. An electrical load is optionally disposed on a second outer surface of the first substrate over the first metallic bar, in the first direction. The electrical load may be electrically coupled to the first metallic bar.
-
-
-
-
-
-
-
-
-
搜索结果
24 条记录 (耗时 0.018 秒)
