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US 9,866,139 B2Granted
Inductive power transfer converter
AssigneeEnphase Energy, Inc.
InventorMichael J. Harrison
Life of this patent
Estimating the term…
Abstract
A bidirectional inductive power transfer (IPT) power converter comprising a cycloconverter, coupled to an AC port, and a resonant circuit, coupled to the cycloconverter, for storing energy and coupling energy to an IPT port.
Claims20
An inductive power transfer (IPT) power converter comprising:
- a cycloconverter, coupled to an AC port;
- a resonant circuit, comprising an IPT coil and coupled to the cycloconverter, for coupling energy from the cycloconverter to an IPT port;
- and
- a controller for dynamically adjusting switch timing of the cycloconverter in accordance with at least one change in a point of resonance of the resonant circuit, the at least one change resulting from a change in a characteristic of a load electrically coupled to the IPT port.
1 more element
A method of power conversion by an inductive power transfer (IPT) power converter comprising:
- operating a cycloconverter of the IPT power converter, the cycloconverter coupled to an AC port and to a resonant circuit comprising an IPT coil for coupling energy from the cycloconverter to an IPT port, by dynamically adjusting switch timing of the cycloconverter in accordance with at least one change in a point of resonance of the resonant circuit, the at least one change resulting from a change in a characteristic of a load electrically coupled to the IPT port;
- and
- coupling energy from the cycloconverter to the IPT coil via the resonant circuit.
Dependencies are inferred from the claim text.