Dynamic power switch control scheme
AssigneeQUALCOMM Incorporated
InventorsDipti Ranjan PAL, Jeffrey GEMAR, Abinash ROY
Life of this patent
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Abstract
In certain aspects, an apparatus includes a first power chain, a second power chain, and an enable circuit having an output coupled to an input of the first power chain. The apparatus also includes a multiplexer having a first input coupled to an output of the first power chain, a second input coupled to the output of the enable circuit, and an output coupled to an input of the second power chain, wherein the multiplexer is configured to receive a select signal, and couple the first input or the second input to the output of the multiplexer based on the select signal.
Claims24
An apparatus, comprising:
- a first power chain;
- a second power chain;
- an enable circuit having an output coupled to an input of the first power chain;
- and
- a multiplexer having a first input coupled to an output of the first power chain, a second input coupled to the output of the enable circuit, and an output coupled to an input of the second power chain, wherein the multiplexer is configured to receive a select signal, and couple the first input or the second input to the output of the multiplexer based on the select signal.
An apparatus, comprising:
- a first set of power chains;
- and
- a power switch controller configured to receive a select signal, sequentially enable the power chains in the first set of power chains if the select signal has a first value, and enable the power chains in the first set of power chains in parallel if the select signal has a second value.
A method for power switch control, comprising:
- receiving a select signal;
- sequentially enabling power chains in a first set of power chains if the select signal has a first value;
- and
- enabling the power chains in the first set of power chains in parallel if the select signal has a second value.
Dependencies are inferred from the claim text.