Phase doubling for switching power supply
AssigneeAnalog Devices, Inc.
InventorsTod F. Schiff, Jerry Z. Zhai, Kean Pan
Life of this patent
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Abstract
A switching power supply control system may include logic to generate a greater number of second switching control signals in response to a first number of original switching control signals. For example, the logic may increase the number of phases that may be controlled by an existing switching power supply controller. The logic may be configured to steer feedback signals from the increased number of phases back to original feedback inputs on the controller.
Claims28
A switching power supply control system comprising:
- an existing switching power supply controller to generate a number of first switching control signals;
- and
- logic to generate a greater number of second switching control signals in response to the first switching control signals.
A method comprising:
- generating a number of first switching control signals with an existing switching power supply controller;
- and
- generating a greater number of second switching control signals in response to the first switching control signals.
A switching power supply system comprising:
- an integrated circuit including a switching power supply controller to generate a number of first switching control signals;
- and
- logic separate from the integrated circuit to generate a greater number of second switching control signals in response to the first switching control signals.
A method for increasing the number of phases available from an existing switching power supply controller comprising multiplexing one or more switching control signals from the controller.
A switching power supply control system comprising:
- An existing means for generating a first series of switching control signals;
- and
- means for generating a second series of switching control signals.
Dependencies are inferred from the claim text.