Passgate strength calibration techniques for voltage regulators
US8981829B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2014 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Aug 13, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/625
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Systems and methods are provided to regulate a supply voltage of a load circuit. For example, a system includes a voltage regulator circuit that includes a passgate device. The system includes a passgate strength calibration control module which is configured to (i) obtain information which specifies operating conditions of the voltage regulator circuit, (ii) access entries of one or more look-up tables using the obtained information, (iii) use information within the accessed entries to determine a maximum load current that could be demanded by the load circuit under the operating conditions specified by the obtained information, and to predict a passgate device width which is sufficient to supply the determined maximum load current, and (iv) set an active width of the passgate device according to the predicted passgate device width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.