Power management in an electronic system through reducing energy usage of a battery and/or controlling an output power of an amplifier thereof
US9384789B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jan 27, 2016 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Jan 27, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C5/148
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method includes configuring a battery and a voltage regulator configured to regulate an output voltage of the battery to supply power to a memory of an electronic circuit also comprising non-memory circuitry. The method also includes switching the supply of power between the battery and the voltage regulator such that: the memory is powered from the battery when the non-memory circuitry is inactive, the memory is powered from a combination of voltage from the battery and the voltage regulator when the memory is about to communicate with the non-memory circuitry during a transition of the non-memory circuitry into an active state thereof, and the memory and the non-memory circuitry are powered from the voltage regulator during the active state of the non-memory circuitry. Thus, minimal current is drawn from the battery while a state of the memory of the electronic circuit is preserved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.