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公开(公告)号：US20220399803A1
公开(公告)日：2022-12-15
申请号：US17806085
申请日：2022-06-09
摘要： In order to balance the thermal stress of the switches (S1-S4) of the two legs of an inverter full bridge (4), the driving signals are generated using an up-down counter having a modulation period Tmod of twice the period T of the input voltage (Vin). The up-down counter has a first compare value (41) of D/4 and a second compare value (42) of (2+D)/4, where D is the duty cycle and where the second half bridge is phase shifted by the period T.
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公开(公告)号：US20220399804A1
公开(公告)日：2022-12-15
申请号：US17806261
申请日：2022-06-09
摘要： A power converter-circuit (100) having a transformer (T), comprising a snubber-circuit (Csn, DSn,S3, S3, DSn,S4) for suppressing voltage peaks on a secondary side of the transformer (T) that comprises a snubber capacitor (Csn); and an auxiliary DC-DC converter (101) having a first input connected with the snubber capacitor (Csn) and a first output connected with a first output (VOut) of the power converter-circuit (100). This circuit increases efficiency of electrical conversion and reduces thermal losses.
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公开(公告)号：US11664725B2
公开(公告)日：2023-05-30
申请号：US17464229
申请日：2021-09-01
CPC分类号： H02M3/015 , H02M3/285 , H02M3/3376 , H02M3/33546 , H02M7/4818
摘要： An interleaved LLC converter arrangement includes two or more LLC converters for transferring power from an input side to an output side, wherein the two or more LLC converters include a first LLC converter and a second LLC converter connected in parallel on the input side and on the output side and wherein each LLC converter includes a bridge inverter at the input side. For balancing the power transfer among the LLC converters if for example the second LLC converter transfers more power from the input side to the output side than the first LLC converter, each leg of the bridge of the bridge inverter of the first LLC converter is operated with a duty cycle of 0.5 and at least one leg of the bridge of the bridge inverter of the second LLC converter is operated with a duty cycle different from 0.5.
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公开(公告)号：US12119752B2
公开(公告)日：2024-10-15
申请号：US17806085
申请日：2022-06-09
CPC分类号： H02M3/33573 , H02M1/0054 , H02M3/01
摘要： In order to balance the thermal stress of the switches (S1-S4) of the two legs of an inverter full bridge (4), the driving signals are generated using an up-down counter having a modulation period Tmod of twice the period T of the input voltage (Vin). The up-down counter has a first compare value (41) of D/4 and a second compare value (42) of (2+D)/4, where D is the duty cycle and where the second half bridge is phase shifted by the period T.
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公开(公告)号：US12113435B2
公开(公告)日：2024-10-08
申请号：US17806261
申请日：2022-06-09
CPC分类号： H02M1/342 , H02M3/01 , H02M3/33571 , H02M3/33592
摘要： A power converter-circuit (100) having a transformer (T), comprising a snubber-circuit (Csn, DSn,S3, S3, DSn,S4) for suppressing voltage peaks on a secondary side of the transformer (T) that comprises a snubber capacitor (Csn); and an auxiliary DC-DC converter (101) having a first input connected with the snubber capacitor (Csn) and a first output connected with a first output (VOut) of the power converter-circuit (100). This circuit increases efficiency of electrical conversion and reduces thermal losses.
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