VBUS power switch
US10389169B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2015 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | Feb 23, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/56
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This document discusses, among other things, an electronic circuit and method for defaulting to a valid battery supply to power an electronic device. In an example, an electronic circuit can be configured to receive information about the battery supply (e.g., an internal battery), such as the battery supply voltage (VBAT), and to determine if the battery supply is valid or invalid using the received information (e.g., comparing the VBAT to a threshold). If VBAT is valid, the electronic device can default to receiving power from the battery supply. If VBAT is invalid, the electronic device can receive power from another power supply, such as an external supply.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.