Voltage regulator with power stage sleep modes
US9570979B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2014 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Apr 23, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power stage of a voltage regulator includes a first switch for connecting a load to a supply voltage in a first switching state of the power stage, a second switch for connecting the load to ground in a second switching state of the power stage and driver circuitry for setting the power stage in the first switching state, the second switching state or a non-switching state in which both switches are off responsive to a switching control signal received by the power stage. A power management unit moves the power stage from a nominal power mode to a first low power mode if the power stage is in the non-switching state for a predetermined time period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.