Inverter
First Claim
1. An electronic circuit, comprising:
- a direct current interface at which a direct current is providable;
an alternating current interface at which an alternating current is providable;
a set of switchable half-bridges coupled to the direct current interface, each half-bridge comprising two blocks each having a switch and a diode;
a control entity configured for switching the switches of the half-bridges with a predefined relative phase shift between different half-bridges;
a filter entity arranged between the alternating current interface and a plurality of parallel paths relating to the plurality of half-bridges, wherein the filter entity comprises a coupled inductor inductively coupling the plurality of parallel paths,wherein the control entity is configured so that, intermittently, both switches of each half-bridge are off and, at all other times, one of the switches of each half-bridge is on and the other one of the switches of the corresponding half-bridge is off.
1 Assignment
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Accused Products
Abstract
An electronic circuit comprising a direct current interface at which a direct current is providable, an alternating current interface at which an alternating current is providable, a set of switchable half-bridges coupled to the direct current interface, each half-bridge comprising two blocks each having a switch and a diode, a control entity configured for switching the switches of the half-bridges with a predefined relative phase shift between different half-bridges, and a filter entity arranged between the alternating current interface and a plurality of parallel paths relating to the plurality of half-bridges wherein the filter entity comprises a coupled inductor inductively coupling the plurality of parallel paths.
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Citations
19 Claims
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1. An electronic circuit, comprising:
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a direct current interface at which a direct current is providable; an alternating current interface at which an alternating current is providable; a set of switchable half-bridges coupled to the direct current interface, each half-bridge comprising two blocks each having a switch and a diode; a control entity configured for switching the switches of the half-bridges with a predefined relative phase shift between different half-bridges; a filter entity arranged between the alternating current interface and a plurality of parallel paths relating to the plurality of half-bridges, wherein the filter entity comprises a coupled inductor inductively coupling the plurality of parallel paths, wherein the control entity is configured so that, intermittently, both switches of each half-bridge are off and, at all other times, one of the switches of each half-bridge is on and the other one of the switches of the corresponding half-bridge is off. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A drive system for an electric- or a hybrid vehicle, the drive system comprising
a battery configured for providing a direct current; - and
an electronic circuit including; a direct current interface at which a direct current is providable; an alternating current interface at which an alternating current is providable; a set of switchable half-bridges coupled to the direct current interface, each half-bridge comprising two blocks each having a switch and a diode; a control entity configured for switching the switches of the half-bridges with a predefined relative phase shift between different half-bridges; and a filter entity arranged between the alternating current interface and a plurality of parallel paths relating to the plurality of half-bridges, wherein the filter entity comprises a coupled inductor inductively coupling the plurality of parallel paths, wherein the direct current interface is coupled to the battery, wherein the control entity is configured so that, intermittently, both switches of each half-bridge are off and, at all other times, one of the switches of each half-bridge is on and the other one of the switches of the corresponding half-bridge is off.
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14. A frequency converter, the frequency converter comprising:
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a first electronic circuit including; a direct current interface at which a direct current is providable; an alternating current interface at which an alternating current is providable; a set of switchable half-bridges coupled to the direct current interface, each half-bridge comprising two blocks each having a switch and a diode; a control entity configured for switching the switches of the half-bridges with a predefined relative phase shift between different half-bridges; and a filter entity arranged between the alternating current interface and a plurality of parallel paths relating to the plurality of half-bridges, wherein the filter entity comprises a coupled inductor inductively coupling the plurality of parallel paths, the first electronic circuit operating at a first frequency; a second electronic circuit arranged as the first electronic circuit operating at a second frequency; wherein the direct current interface of the first electronic circuit is coupled to the direct current interface of the second electronic circuit; wherein an alternating current is supplyable or supplied to the alternating current interface of the first electronic circuit at the first frequency; and wherein an alternating current is generated at the alternating current interface of the second electronic circuit at the second frequency; wherein the control entity is configured so that, intermittently, both switches of each half-bridge are off and, at all other times, one of the switches of each half-bridge is on and the other one of the switches of the corresponding half-bridge is off. - View Dependent Claims (15, 16)
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17. A method of generating an output alternating current from a supplied direct current, the method comprising:
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supplying the direct current to a set of switchable half-bridges, each half-bridge comprising two blocks each having a switch and a diode; switching the switches of the half-bridges with a predefined relative phase shift between different half-bridges for dividing the direct current into a plurality of parallel paths relating to the plurality of half-bridges; extracting a fundamental mode from each of the plurality of parallel paths in a filter entity; superposing the extracted fundamental modes in the filter entity to thereby generate the output alternating current; wherein the filter entity comprises a coupled inductor inductively coupling the plurality of parallel paths; wherein the method is configured so that, intermittently, both switches of each half-bridge are off and, at all other times, one of the switches of each half-bridge is on and the other one of the switches of the corresponding half-bridge is off.
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18. A computer-readable medium, in which a computer program of generating an output alternating current from a supplied direct current is stored, which computer program, when being executed by a processor, is adapted to carry out or control the steps of:
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supplying the direct current to a set of switchable half-bridges, each half-bridge comprising two blocks each having a switch and a diode; switching the switches of the half-bridges with a predefined relative phase shift between different half-bridges for dividing the direct current into a plurality of parallel paths relating to the plurality of half-bridges; extracting a fundamental mode from each of the plurality of parallel paths in a filter entity; and superposing the extracted fundamental modes in the filter entity to thereby generate the output alternating current; wherein the filter entity comprises a coupled inductor inductively coupling the plurality of parallel paths; wherein the steps include so that, intermittently, both switches of each half-bridge are off and, at all other times, one of the switches of each half-bridge is on and the other one of the switches of the corresponding half-bridge is off.
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19. A program element of generating an output alternating current from a supplied direct current, which program element, when being executed by a processor, is adapted to carry out or control the steps of:
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supplying the direct current to a set of switchable half-bridges, each half-bridge comprising two blocks each having a switch and a diode; switching the switches of the half-bridges with a predefined relative phase shift between different half-bridges for dividing the direct current into a plurality of parallel paths relating to the plurality of half-bridges; extracting a fundamental mode from each of the plurality of parallel paths in a filter entity; and superposing the extracted fundamental modes in the filter entity to thereby generate the output alternating current; wherein the filter entity comprises a coupled inductor inductively coupling the plurality of parallel paths; wherein the steps include so that, intermittently, both switches of each half-bridge are off and, at all other times, one of the switches of each half-bridge is on and the other one of the switches of the corresponding half-bridge is off.
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Specification