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1.发明申请公开(公告)号：US20200007030A1
公开(公告)日：2020-01-02
申请号：US16456219
申请日：2019-06-28
发明人： Rik W. De Doncker
摘要： An electrical circuit comprising an n-port m-phase active bridge converter with n≥2 and m≥3, where each port can be operated as an input or an output port, wherein each of the n ports has m phase legs with multiple active switches with parallel connected snubber or resonant capacitors, whereby the ports can convert a DC-voltage into an AC voltage and vice versa, whereby the ports are connected via a m-phase transformer or over m separate transformers each connected to each of the m phase legs of each of the m ports to transfer power between the ports, wherein an auxiliary circuit is connected to a star point of the transformers to feedback a fraction of a transformer input voltage and energy into a DC mid-point capacitor of a DC-link of at least one of the n-port m-phase active bridge converters to charge the DC mid-point capacitor.
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2.发明申请公开(公告)号：US20180244171A1
公开(公告)日：2018-08-30
申请号：US15756743
申请日：2016-08-31
申请人： RWTH Aachen
发明人： Murat Senol , Rik W. De Doncker
CPC分类号： B60L15/007 , B60L58/20 , B60L2210/10 , B60L2210/40 , B60L2210/42 , B60L2220/12 , B60L2220/54 , B60Y2200/91 , B60Y2200/92 , H02M7/5387 , H02P27/06 , H02P2209/01 , Y02T10/641 , Y02T10/645 , Y02T10/7005 , Y02T10/7066 , Y02T10/7216 , Y02T10/7241
摘要： A circuit assembly for linking different electrical voltage levels in a motor vehicle, comprising: an electric machine containing induction coils in a star circuit connection with a star point; a first switch unit containing switch elements for generating an AC voltage for the electric machine from a DC voltage of a first voltage level; a DC voltage of a second voltage level; and a second switch unit for a bidirectional electrical energy flow between the DC voltage of the first voltage level and the DC voltage of the second voltage level, wherein the second switch unit has two switch elements arranged in series in an auxiliary switch branch, wherein the auxiliary switch branch is connected in parallel to the DC voltage of the first voltage level, and each connection of the switch elements is connected to the star point.
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公开(公告)号：US10998800B2
公开(公告)日：2021-05-04
申请号：US15523258
申请日：2015-10-29
摘要： The invention relates to a method of manufacturing a rotor for an electric machine, wherein the rotor is composed of at least one electric sheet wherein at least one electric sheet is thermally treated regionally to directly modify its magnetic permeability in the treated region.
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公开(公告)号：US10608522B2
公开(公告)日：2020-03-31
申请号：US16456254
申请日：2019-06-28
发明人： Rik W. De Doncker , Johannes Voss
摘要： An electrical circuit comprising an n-port m-phase active bridge converter with n≥2 and m≥1, where each port can be operated as an input or an output port, wherein each of the n ports has m phase legs with multiple active switches with parallel connected snubber or resonant capacitors, whereby the n ports can convert a DC-voltage into an AC voltage, the n ports connected via an m-phase transformer or over m separate transformers each connected to each of the m phase legs of each of the n ports to transfer power between the ports, wherein an auxiliary circuit is connected to the transformers to convert a part of a transformer input voltage and energy via an auxiliary voltage source into a DC mid-point capacitor of a DC-link of at least one of the n-port m-phase active bridge converters to recharge the DC mid-point capacitor.
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5.发明申请公开(公告)号：US20200007022A1
公开(公告)日：2020-01-02
申请号：US16456254
申请日：2019-06-28
发明人： Rik W. De Doncker , Johannes Voss
摘要： An electrical circuit comprising an n-port m-phase active bridge converter with n≥2 and m≥1, where each port can be operated as an input or an output port, wherein each of the n ports has m phase legs with multiple active switches with parallel connected snubber or resonant capacitors, whereby the n ports can convert a DC-voltage into an AC voltage, the n ports connected via an m-phase transformer or over m separate transformers each connected to each of the m phase legs of each of the n ports to transfer power between the ports, wherein an auxiliary circuit is connected to the transformers to convert a part of a transformer input voltage and energy via an auxiliary voltage source into a DC mid-point capacitor of a DC-link of at least one of the n-port m-phase active bridge converters to recharge the DC mid-point capacitor.
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