Patent ID: 11908528
Assignee: STMICROELECTRONICS INTERNATIONAL N.V.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 14:
15. A method, comprising:
selecting an operational mode of a charge pump from a plurality of operational modes by outputting a charge pump selection code from a mode selector, the charge pump including a plurality of charge pump stages;
generating with a logic circuit, switch control signals based on the charge pump selection code;
activating the selected operational mode of the charge pump by selectively coupling the charge pump stages in parallel or series connections by applying the switch control signals to a plurality of switches coupled to the charge pump stages;
receiving an input voltage with the charge pump; and
generating an output voltage from the input voltage with the charge pump based on the selected operational mode, wherein the logic circuit includes a plurality of level shifters each coupled to an output of a respective charge pump stage and configured to receive at least a portion of the selection code and to shift the at least a portion of the selection code to a level of the respective charge pump stage.