Primary unit comprising a plurality of coil sections for inductive charging
First Claim
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1. A primary unit for generating an electromagnetic charging field for inductive coupling to a secondary coil, the primary unit comprising:
- a multipartite primary coil, which comprises N coil elements, where N>
2, which are coupled to one another in star at a respective first end;
N half-bridges, which in each case are coupled to a respective second end of the N coil elements; and
a control unit, which is configured to drive the N half-bridges depending on at least one of a position, a type and a shape of the secondary coil,wherein current only flows through the N coil elements in the same phase.
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Abstract
A primary unit is provided for producing an electromagnetic charging field for inductive coupling to a secondary coil. The primary unit has a multi-part primary coil, which includes N coil sections, with N>2, which are coupled to each other on a first end in the shape of a star. Moreover, the primary unit has N half-bridges, which are each coupled to a second end of the N coil sections. In addition, the primary unit has a control unit, which is configured to control the N half-bridges in relation to the secondary coil.
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Citations
17 Claims
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1. A primary unit for generating an electromagnetic charging field for inductive coupling to a secondary coil, the primary unit comprising:
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a multipartite primary coil, which comprises N coil elements, where N>
2, which are coupled to one another in star at a respective first end;N half-bridges, which in each case are coupled to a respective second end of the N coil elements; and a control unit, which is configured to drive the N half-bridges depending on at least one of a position, a type and a shape of the secondary coil, wherein current only flows through the N coil elements in the same phase. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification