Method and apparatus for transferring energy in a power converter circuit
AssigneePower Integrations, Inc.
InventorsWilliam M. Polivka, David Michael Hugh Matthews
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Abstract
A reduced cost energy transfer element for power converter circuits. In one embodiment, an energy transfer element according to an embodiment of the present invention includes a magnetic element having an external surface with at least a first winding and a second winding wound around the external surface of the magnetic element without a bobbin. As such, energy to be received from a power converter circuit input is to be transferred from the first winding to the second winding through a magnetic coupling provided by the magnetic element to a power converter circuit output.
Claims16
An energy transfer element, comprising:
- a magnetic element including an external surface;
- a first winding magnetically coupled to the magnetic element and wound around the magnetic element directly over the external surface of the magnetic element without a bobbin;
- and
- a second winding magnetically coupled to the magnetic element and wound around the magnetic element directly over the first winding, wherein energy is to be transferred from the first winding to the second winding through the magnetic couplings provided by the magnetic element.
Dependencies are inferred from the claim text.