Power converter with controller operable in selected modes of operation
First Claim
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1. 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 up to an upper current threshold level and thereafter control a level of current of said first switch to a remnant current level, said remnant current level being controlled in accordance with a current through a resistor;
enable conduction of said second switch when controlling said level of current of said first switch; and
disable conduction of said second switch when a current associated with said second switch reaches a lower current threshold level.
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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.
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Citations
20 Claims
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1. A controller for use with a circuit having first and second switches operable in a mode of operation, configured to:
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enable conduction of said first switch up to an upper current threshold level and thereafter control a level of current of said first switch to a remnant current level, said remnant current level being controlled in accordance with a current through a resistor; enable conduction of said second switch when controlling said level of current of said first switch; and disable conduction of said second switch when a current associated with said second switch reaches a lower current threshold level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for use with a circuit having first and second switches operable in a mode of operation, comprising:
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enabling conduction of said first switch up to an upper current threshold level and thereafter controlling a level of current of said first switch to a remnant current level, a current through in accordance with a resistor; enabling conduction of said second switch when controlling said level of current of said first switch; and disabling conduction of said second switch when a current associated with said second switch reaches a lower current threshold level. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification