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公开(公告)号：EP4354716A1
公开(公告)日：2024-04-17
申请号：EP23203058.5
申请日：2023-10-11
CPC分类号： H02M1/0096 , H02M3/07 , H02M3/325
摘要： A power converter system includes a first transformer winding, L1, A switch is operatively connected between the first transformer winding, L1, and ground for controlling the first transformer winding, L1. A holdup charging circuit (104) includes a clamp circuit (106) connected between a first node on a first side of the first transformer winding, L1, and a second node on a second side of the first transformer winding, L1. The clamp circuit (106) includes a clamp diode oriented to let current flow through the clamp circuit (106) in a direction from the first node to the second node. The clamp circuit (106) includes a clamp capacitor in series between the clamp diode and the second node. A holdup circuit, including a holdup capacitor, is connected to a third node in the clamp circuit (106) between the clamp diode and the clamp capacitor.
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公开(公告)号：EP4214828B1
公开(公告)日：2024-08-28
申请号：EP21766680.9
申请日：2021-08-30
CPC分类号： H02M7/44 , H02M1/0096
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公开(公告)号：EP4376284A3
公开(公告)日：2024-08-07
申请号：EP24168439.8
申请日：2016-11-04
CPC分类号： H02M3/285 , Y02B70/10 , H02M1/0096 , H02M1/0058 , H02M3/33571 , H02M3/01
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.
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公开(公告)号：EP4376284A2
公开(公告)日：2024-05-29
申请号：EP24168439.8
申请日：2016-11-04
IPC分类号： H02M3/28
CPC分类号： H02M3/285 , Y02B70/10 , H02M1/0096 , H02M1/0058 , H02M3/33571 , H02M3/01
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.
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公开(公告)号：EP3849068B1
公开(公告)日：2024-07-10
申请号：EP20215998.4
申请日：2020-12-21
CPC分类号： H02M1/0096 , H02M3/156
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公开(公告)号：EP4354715A1
公开(公告)日：2024-04-17
申请号：EP23202834.0
申请日：2023-10-10
CPC分类号： H02M1/0006 , H02M1/0096 , H02M3/07 , H02M3/33569
摘要： A power converter system (100) includes a first transformer winding (L1). Two switches (S1, S2) are operatively connected to the first power winding (L1) and ground (102) for controlling the first transformer winding (L1). A holdup charging circuit (104) includes a clamp circuit (106) connected between a first node (110) on a first side of the first transformer winding (L1) and a second node (112) on a second side of the first transformer winding (L1). The clamp circuit (106) includes a clamp diode (D1) oriented to let current flow through the clamp circuit (106) in a direction from the first node (110) to the second node (112). The clamp circuit (106) includes a clamp capacitor (C1) in series between the clamp diode (D1) and the second node (112). A holdup circuit (108), including a holdup capacitor (C3), is connected to a third node (114) in the clamp circuit (106) between the clamp diode (D1) and the clamp capacitor (C1).
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