Controller and method for operating an inverter using multiple switching patterns
AssigneeRenesas Design (UK) Limited
InventorLouis De Marco
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Abstract
A controller for an inverter, the inverter comprising a plurality of switches, the controller configured to generate a control signal wherein the control signal operates the plurality of switches in a first switching pattern or a second switching pattern.
Claims18
A controller for an inverter, the inverter comprising a plurality of switches, the controller configured to generate a control signal wherein the control signal operates the plurality of switches in a first switching pattern or a second switching pattern, each switching pattern corresponding to a distinct arrangement of the plurality of switches, with certain switches being in an on state and others being in an off state, to establish different current paths through the inverter wherein the inverter is configured to operate in a first phase and a second phase, wherein when the plurality of switches are operated in the first switching pattern, a current flowing through the inverter switches between a first current path and a second current path, wherein during the first phase the current flowing through the inverter flows from a battery to an output and during the second phase the current flowing through the inverter flows from the output to the battery.
An apparatus comprising:
- an inverter comprising a plurality of switches;
- and a controller for the inverter, the controller configured to generate a control signal wherein the control signal operates the plurality of switches in a first switching pattern or a second switching pattern, each switching pattern corresponding to a distinct arrangement of the plurality of switches, with certain switches being in an on state and others being in an off state, to establish different current paths through the inverter, wherein the inverter is configured to operate in a first phase and a second phase, wherein when the plurality of switches are operated in the first switching pattern, a current flowing through the inverter switches between a first current path and a second current path, wherein during the first phase the current flowing through the inverter flows from a battery to an output and during the second phase the current flowing through the inverter flows from the output to the battery.
A method of controlling an inverter comprising a plurality of switches, the method comprising:
- generating, using a controller, a control signal to operate the plurality of switches in a first switching pattern or a second switching pattern, each switching pattern corresponding to a distinct arrangement of the plurality of switches, with certain switches being in an on state and others being in an off state, to establish different current paths through the inverter, wherein the inverter is configured to operate in a first phase and a second phase, wherein when the plurality of switches are operated in the first switching pattern, a current flowing through the inverter switches between a first current path and a second current path, wherein during the first phase the current flowing through the inverter flows from a battery to an output and during the second phase the current flowing through the inverter flows from the output to the battery.
Dependencies are inferred from the claim text.