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US 2011/0215893 A1Published application
Planar audio amplifier output inductor with current sense
AssigneeBose Corporation
InventorMichael Nussbaum
Life of this patent
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Abstract
An audio amplifier, that includes a planar inductor structure that includes a first plurality of windings, formed on layers of a first circuit board and a second plurality of windings, formed on layers of a second circuit board. The planar inductor structure may further include a sense winding.
Claims11
An audio amplifier, comprising:
- a planar inductor structure comprising:
- a first plurality of windings, formed on layers of a first circuit board;
- a second plurality of windings, formed on layers of a second circuit board.
An audio amplifier, comprising:
- a planar inductor structure comprising a first plurality windings formed on layers of a first circuit board;
- and
- a sense coil, sensing the current in the first plurality of windings, adjacent the one of the first plurality of windings.
Dependencies are inferred from the claim text.