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1. 发明授权

US11496056B2 Parallel branched resonant converter 有权
公开(公告)号：US11496056B2
公开(公告)日：2022-11-08
申请号：US17197850
申请日：2021-03-10
申请人： EXCELSYS TECHNOLOGIES LTD
发明人： Richard Morrison
IPC分类号： H02M3/335 , H02M3/28
摘要： This disclosure describes systems, methods, and apparatus for driving a plurality of output circuits from a DC input signal using a resonant converter, the resonant converter comprising a switch network, a resonant tank, and a rectifier network, the resonant tank comprising: a resonant capacitor bridge coupled across the switch network; a plurality of branches, each branch comprising at least one series inductor coupled at a first end to the resonant capacitor bridge and at a second end to the rectifier network; and at least one parallel inductor; the rectifier network comprising one or more groups of transformers, each group coupled to one branch of the plurality of branches, and wherein the primary windings of the transformers of each group are coupled in parallel, and wherein the secondary windings are configured for coupling to an output load.

2. 发明授权

US11594948B2 Reduced power consumption for LLC resonant converter under light load 有权
公开(公告)号：US11594948B2
公开(公告)日：2023-02-28
申请号：US17171527
申请日：2021-02-09
申请人： EXCELSYS TECHNOLOGIES LTD
发明人： Richard Morrison , Andrejs Gasilovs , Phelim Seamus Bradley
IPC分类号： H02M3/335 , H02M1/00 , H02M3/00 , H02M7/48
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.

3. 发明授权

US11482934B2 Resonant converter having multiple transformers and a parallel inductor 有权
公开(公告)号：US11482934B2
公开(公告)日：2022-10-25
申请号：US17163465
申请日：2021-01-31
申请人： EXCELSYS TECHNOLOGIES LTD
发明人： Jonathan James Wilkinson , Diarmuid Hogan
IPC分类号： H02M3/335 , H02M3/337 , H02M3/28 , H02M1/00
摘要： The invention provides a series resonant LLC power converter unit to provide a plurality of power outputs. The power converter unit comprises a plurality of transformers arranged such that at least one primary winding of each transformer is connected in parallel and configured to provide a power output. An inductive element is positioned in parallel with at least one primary winding selected from said plurality of transformers, wherein the inductive element restricts variation in inductance for said plurality of transformers and power outputs in operation.

4. 发明授权

US10972011B2 LLC resonant converter having multiple transformers and a parallel inductor 有权
公开(公告)号：US10972011B2
公开(公告)日：2021-04-06
申请号：US15344419
申请日：2016-11-04
申请人： Excelsys Technologies Ltd
发明人： Jonathan James Wilkinson , Diarmuid Hogan
IPC分类号： H02M3/335 , H02M3/337 , H02M3/28 , H02M1/00
摘要： The invention provides a series resonant LLC power converter unit to provide a plurality of power outputs. The power converter unit comprises a plurality of transformers arranged such that at least one primary winding of each transformer is connected in parallel and configured to provide a power output. An inductive element is positioned in parallel with a single primary winding selected from said plurality of transformers, wherein the inductive element and single primary winding restricts variation in inductance for said plurality of transformers and power outputs in operation.

5. 发明申请

US20220337171A1 RESONANT TANK 有权
公开(公告)号：US20220337171A1
公开(公告)日：2022-10-20
申请号：US17232004
申请日：2021-04-15
申请人： EXCELSYS TECHNOLOGIES LTD
发明人： Richard Morrison
IPC分类号： H02M7/48 , H02M1/44
摘要： This disclosure describes systems, methods, and apparatus for controlling a voltage provided to a plurality of configurable output modules using a resonant converter, the resonant converter comprising: an inverter circuit; a resonant capacitor bridge coupled across the inverter circuit; N groups of output modules, each of the N groups comprising terminals configured for coupling to up to M output modules, the output modules each comprising: a transformer having a primary and a secondary; and a rectified output coupled to the secondary and configured for coupling to a load; and a resonant inductor network configured to be coupled between the resonant capacitor bridge and the primaries of the transformers, the resonant inductor network comprising: at least one parallel inductor; and N parallel branches arranged in parallel and each branch comprising a series inductor, each of the series inductors configured for transformer-coupling to up to M output modules.

6. 发明申请

US20210152091A1 Resonant Converter Having Multiple Transformers and a Parallel Inductor 有权
公开(公告)号：US20210152091A1
公开(公告)日：2021-05-20
申请号：US17163465
申请日：2021-01-31
申请人： EXCELSYS TECHNOLOGIES LTD
发明人： Jonathan James Wilkinson , Diarmuid Hogan
IPC分类号： H02M3/335 , H02M3/337
摘要： The invention provides a series resonant LLC power converter unit to provide a plurality of power outputs. The power converter unit comprises a plurality of transformers arranged such that at least one primary winding of each transformer is connected in parallel and configured to provide a power output. An inductive element is positioned in parallel with at least one primary winding selected from said plurality of transformers, wherein the inductive element restricts variation in inductance for said plurality of transformers and power outputs in operation.

7. 发明申请

US20170133940A1 LLC RESONANT CONVERTER HAVING MULTIPLE TRANSFORMERS AND A PARALLEL INDUCTOR 审中-公开
公开(公告)号：US20170133940A1
公开(公告)日：2017-05-11
申请号：US15344419
申请日：2016-11-04
申请人： Excelsys Technologies Ltd
发明人： Jonathan James Wilkinson , Diarmuid Hogan
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M3/285 , H02M3/337 , H02M2001/0058 , H02M2001/0096 , Y02B70/1433 , Y02B70/1491
摘要： The invention provides a series resonant LLC power converter unit to provide a plurality of power outputs. The power converter unit comprises a plurality of transformers arranged such that at least one primary winding of each transformer is connected in parallel and configured to provide a power output. An inductive element is positioned in parallel with a single primary winding selected from said plurality of transformers, wherein the inductive element and single primary winding restricts variation in inductance for said plurality of transformers and power outputs in operation.

8. 发明授权

US11750091B2 Resonant converter 有权
公开(公告)号：US11750091B2
公开(公告)日：2023-09-05
申请号：US17232004
申请日：2021-04-15
申请人： EXCELSYS TECHNOLOGIES LTD
发明人： Richard Morrison
IPC分类号： H02M3/00 , H02M7/48 , H02M1/44 , H02M1/00 , H02M3/335
CPC分类号： H02M3/01 , H02M1/008 , H02M1/44 , H02M3/33571 , H02M7/4818
摘要： This disclosure describes systems, methods, and apparatus for controlling a voltage provided to a plurality of configurable output modules using a resonant converter, the resonant converter comprising: an inverter circuit; a resonant capacitor bridge coupled across the inverter circuit; N groups of output modules, each of the N groups comprising terminals configured for coupling to up to M output modules, the output modules each comprising: a transformer having a primary and a secondary; and a rectified output coupled to the secondary and configured for coupling to a load; and a resonant inductor network configured to be coupled between the resonant capacitor bridge and the primaries of the transformers, the resonant inductor network comprising: at least one parallel inductor; and N parallel branches arranged in parallel and each branch comprising a series inductor, each of the series inductors configured for transformer-coupling to up to M output modules.

9. 发明申请

US20220294353A1 PARALLEL BRANCHED RESONANT CONVERTER 有权
公开(公告)号：US20220294353A1
公开(公告)日：2022-09-15
申请号：US17197850
申请日：2021-03-10
申请人： EXCELSYS TECHNOLOGIES LTD
发明人： Richard Morrison
IPC分类号： H02M3/335 , H02M3/28
摘要： This disclosure describes systems, methods, and apparatus for driving a plurality of output circuits from a DC input signal using a resonant converter, the resonant converter comprising a switch network, a resonant tank, and a rectifier network, the resonant tank comprising: a resonant capacitor bridge coupled across the switch network; a plurality of branches, each branch comprising at least one series inductor coupled at a first end to the resonant capacitor bridge and at a second end to the rectifier network; and at least one parallel inductor; the rectifier network comprising one or more groups of transformers, each group coupled to one branch of the plurality of branches, and wherein the primary windings of the transformers of each group are coupled in parallel, and wherein the secondary windings are configured for coupling to an output load.

10. 发明申请

US20220255442A1 REDUCED POWER CONSUMPTION FOR LLC RESONANT CONVERTER UNDER LIGHT LOAD 有权
公开(公告)号：US20220255442A1
公开(公告)日：2022-08-11
申请号：US17171527
申请日：2021-02-09
申请人： EXCELSYS TECHNOLOGIES LTD
发明人： Richard Morrison , Andrejs Gasilovs , Phelim Seamus Bradley
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.

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