Transformer construction
First Claim
1. A power conditioning unit for providing ac power from a photovoltaic (PV) panel comprising:
- a plurality of single phase transformers; and
a plurality of drive circuits arranged to operate the plurality of transformers out of phase from each other;
wherein the transformers are configured to share magnetic flux paths.
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Accused Products
Abstract
The invention relates to a transformer construction comprising a plurality of transformer cores configured to share magnetic flux paths and, as a result, at least one of the cores comprises a post and an associated sidewall having an effective cross-sectional area which is less than that of the post. Such a construction may be employed in a power conditioning unit, for example, for a photovoltaic module, which is configured to operate the cores out of phase from each other. Also described is a transformer winding comprising a longitudinal spine having a first turn emanating from a first portion of the spine in a first transverse direction and a second turn emanating from a second portion of the spine in a second transverse direction, wherein the second transverse direction is opposite to the first transverse direction.
100 Citations
19 Claims
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1. A power conditioning unit for providing ac power from a photovoltaic (PV) panel comprising:
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a plurality of single phase transformers; and a plurality of drive circuits arranged to operate the plurality of transformers out of phase from each other; wherein the transformers are configured to share magnetic flux paths. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of operating a power conditioning unit for providing ac power from a photovoltaic (PV) panel comprising:
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providing a plurality of single phase transformers configured to share magnetic flux paths; and providing a plurality of drive circuits for operating the plurality of transformers out of phase from each other. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for providing ac power from a photovoltaic (PV) panel, the method comprising:
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converting dc power from the PV panel in a plurality of single phase transformers having conjoined cores that share magnetic flux paths; configuring a plurality of drive circuits for operating the plurality of single phase transformers to be at different phases to allow the cores of the transformers to share the magnetic flux paths without interference. - View Dependent Claims (18, 19)
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Specification