Brownout avoidance
US9647489B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2015 |
| Grant date | May 9, 2017 |
| Priority date | — |
| Expiry date | Jul 29, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00306
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Examples of the disclosure are directed to methods of managing power of various modules of an electronic device to prevent the voltage of the battery from falling to an undervoltage lockout (UVLO) threshold. In some examples, software operating on the electronic device or an associated electronic device (e.g., a paired electronic device) may assign power budgets to one or more modules, thereby preventing each module from drawing its maximum current capacity and causing the battery's voltage level to fall to the UVLO threshold. In some examples, a pre-UVLO threshold (i.e., a threshold higher than the UVLO threshold) may be used to modify the states of one or more modules to save power as the voltage of the battery approaches the UVLO threshold, but before the device must be fully powered off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.