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公开(公告)号：US11557983B2
公开(公告)日：2023-01-17
申请号：US17148322
申请日：2021-01-13
发明人： Daniel Zmood , Ohad Fried , Omer Szlafsztein
摘要： A multi-level inverter topology is disclosed. A power converter circuit converts a DC source at its input to provide an alternating current (AC) at its output. The power converter circuit may have a controller operably attached to multiple series connections of switches. The controller may control one or more of the multiple series connections of switches to convert a DC input to provide multi-level AC voltages with DC offset across two terminals of the power converter circuit. The multi-level AC voltages with DC offset may then be converted by use of a plurality of series connections of switches to provide a single-phase AC voltage at a first output terminal with respect to at least one of a neutral potential, an earth potential, or a terminal of the power converter circuit.
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2.发明公开公开(公告)号：US20240204683A1
公开(公告)日：2024-06-20
申请号：US18536491
申请日：2023-12-12
发明人： Omer Szlafsztein , Amir Peri , Tom Di Cori , Ohad Fried
CPC分类号： H02M7/483 , H02M1/0009 , H02M7/537
摘要： In case the operational power production level of a multi-phase DC-AC power converter decreases, a controller may be configured to determine that a switching leg or switching legs of DC-AC power converter are to be disabled based on a power criterion to reduce losses incurred by the DC-AC power converter. The controller may be configured to select one of more of the switching legs, based on a selection criterion, and disable the selected switching leg or switching legs so as to reduce phase imbalance or degradation of the switching legs.
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公开(公告)号：US20230223868A1
公开(公告)日：2023-07-13
申请号：US18151651
申请日：2023-01-09
发明人： Alfred Rahmilov , Ohad Fried , Tzachi Glovinsky , lIan Yoscovich , Lior Sarig
IPC分类号： H02M7/5387 , H02M1/08 , H02M1/00
CPC分类号： H02M7/53871 , H02M1/082 , H02M1/0019
摘要： A single-phase power converter is disclosed for converting a direct current power source to an alternating current power across first and second output terminals, which may be connected to a split-phase system having a first-phase load connected between one phase and a second-phase load connected between the other phase. When the loads are not balanced, the single-phase power converter provides a differential current to compensate for the imbalance.
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公开(公告)号：US20230163696A1
公开(公告)日：2023-05-25
申请号：US17993039
申请日：2022-11-23
发明人： Daniel Zmood , Ohad Fried , Omer Szlafsztein
摘要： A multi-level inverter topology is disclosed. A power converter circuit converts a DC source at its input to provide an alternating current (AC) at its output. The power converter circuit may have a controller operably attached to multiple series connections of switches. The controller may control one or more of the multiple series connections of switches to convert a DC input to provide multi-level AC voltages with DC offset across two terminals of the power converter circuit. The multi-level AC voltages with DC offset may then be converted by use of a plurality of series connections of switches to provide a single-phase AC voltage at a first output terminal with respect to at least one of a neutral potential, an earth potential, or a terminal of the power converter circuit.
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公开(公告)号：US20240291397A1
公开(公告)日：2024-08-29
申请号：US18655783
申请日：2024-05-06
发明人： Daniel Zmood , Ohad Fried , Omer Szlafsztein
摘要： A multi-level inverter topology is disclosed. A power converter circuit converts a DC source at its input to provide an alternating current (AC) at its output. The power converter circuit may have a controller operably attached to multiple series connections of switches. The controller may control one or more of the multiple series connections of switches to convert a DC input to provide multi-level AC voltages with DC offset across two terminals of the power converter circuit. The multi-level AC voltages with DC offset may then be converted by use of a plurality of series connections of switches to provide a single-phase AC voltage at a first output terminal with respect to at least one of a neutral potential, an earth potential, or a terminal of the power converter circuit.
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公开(公告)号：US12003193B2
公开(公告)日：2024-06-04
申请号：US17993039
申请日：2022-11-23
发明人： Daniel Zmood , Ohad Fried , Omer Szlafsztein
摘要： A multi-level inverter topology is disclosed. A power converter circuit converts a DC source at its input to provide an alternating current (AC) at its output. The power converter circuit may have a controller operably attached to multiple series connections of switches. The controller may control one or more of the multiple series connections of switches to convert a DC input to provide multi-level AC voltages with DC offset across two terminals of the power converter circuit. The multi-level AC voltages with DC offset may then be converted by use of a plurality of series connections of switches to provide a single-phase AC voltage at a first output terminal with respect to at least one of a neutral potential, an earth potential, or a terminal of the power converter circuit.
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公开(公告)号：US20210218342A1
公开(公告)日：2021-07-15
申请号：US17148322
申请日：2021-01-13
发明人： Daniel Zmood , Ohad Fried , Omer Szlafsztein
摘要： A multi-level inverter topology is disclosed. A power converter circuit converts a DC source at its input to provide an alternating current (AC) at its output. The power converter circuit may have a controller operably attached to multiple series connections of switches. The controller may control one or more of the multiple series connections of switches to convert a DC input to provide multi-level AC voltages with DC offset across two terminals of the power converter circuit. The multi-level AC voltages with DC offset may then be converted by use of a plurality of series connections of switches to provide a single-phase AC voltage at a first output terminal with respect to at least one of a neutral potential, an earth potential, or a terminal of the power converter circuit.
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