Power converter with controller operable in selected modes of operation
AssigneeEnpirion, Inc.
InventorsDouglas Dean Lopata, Ashraf W. Lotfi
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Abstract
A power converter and method of controlling the same for selected modes of operation. In one embodiment, the power converter includes a first power switch coupled to a source of electrical power and a second power switch coupled to the first power switch and to an output terminal of the power converter. The power converter also includes a controller configured to control an operation of the first and second power switches during selected modes of operation.
Claims20
A controller for use with a circuit having first and second switches operable in a mode of operation, configured to:
- enable conduction of said first switch until an output characteristic of said circuit exceeds an upper output characteristic threshold level and thereafter control a level of current of said first switch;
- enable conduction of said second switch;
- and
- disable conduction of said second switch when said output characteristic crosses a lower output characteristic threshold level.
A method for use with a circuit having first and second switches operable in a mode of operation, comprising:
- enabling conduction of said first switch until an output characteristic of said circuit exceeds an upper output characteristic threshold level and thereafter controlling a level of current of said first switch;
- enabling conduction of said second switch;
- and
- disabling conduction of said second switch when said output characteristic crosses a lower output characteristic threshold level.
Dependencies are inferred from the claim text.