Charge pump timing control
AssigneePeregrine Semiconductor Corporation
InventorsDavid M. Giuliano, Gregory Szczeszynski, Jeffrey Summit, Raymond Barrett, JR.
Life of this patent
Estimating the term…
Abstract
Cycle timing of a charge pump is adapted according to monitoring of operating characteristics of a charge pump and/or peripheral elements coupled to the charge pump. In some examples, this adaptation provides maximum or near maximum cycle times while avoiding violation of predefine constraints (e.g., operating limits) in the charge pump and/or peripheral elements.
Claims20
1-14. (canceled)
An apparatus comprising a charge pump having switch elements that are arranged to operate in a cycle from a plurality of cycles, each of which is associated with a different configuration of said switch elements, said switch elements being configured to switch according to a timing pattern and to provide charge-transfer paths between capacitive elements, and a controller, coupled to said charge pump, said controller comprising an output that provides a signal that selects a cycle from said plurality of cycles and a first sensor-input that accepts a sensor signal that characterizes operation of at least one of said charge pump and a peripheral circuit coupled to said charge pump, said controller being configured to adjust said timing pattern based at least in part on variation of said first sensor-input during operation of said charge pump.
A method comprising operating a charge pump having switch elements that are arranged to operate in a cycle from a plurality of cycles, each of which is associated with a different configuration of said switch elements, said switch elements being configured to switch according to a timing pattern and to provide charge-transfer paths between capacitive elements, said method comprising selecting a cycle from said plurality of cycles based at least in part on a sensor signal that characterizes operation of at least one of said charge pump and a peripheral circuit coupled to said charge pump and adjusting said timing pattern based at least in part on variation of said first sensor-input during operation of said charge pump.
Dependencies are inferred from the claim text.