Sink current adaptation based on power supply detection
US8729867B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2010 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Oct 29, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00304
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Techniques are provided for selecting a charge current to be sunk by a mobile electronic device. A charging device is received at a connector of the mobile electronic device. The charging device is configured to supply a charge current to a rechargeable battery of the mobile electronic device. One or more data signals is/are received from the charging device at an interface circuit of the mobile electronic device on one or more data signal lines through the connector. One or more control signals are applied to the interface circuit to enable data signal values to be generated for the data signal(s) based on the control signal(s) and a type of the charging device. The data signal values are mapped to a maximum charge current for the rechargeable battery. The charge current supplied by the charging device to the rechargeable battery is limited to the selected maximum charge current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.