Charger detection with proprietary charger support
US9148026B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2012 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | Nov 1, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00045
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Method and apparatus, among other things, are provided for detecting a charger type. In an example, a method to classify a potential charger coupled to a port of an electronic device can include detecting the potential charger coupled to a USB-compatible port of the electronic device, applying a pull-down current to first and second data lines of the USB-compatible port to provide a first test voltage on each of the first and second data lines, and executing a primary detection process of a USB Battery Charging 1.2 Compliance Plan if the first test voltage on each of the first and second data lines is not between a first threshold and a second threshold using the pull-down current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.