Dual role port automatic role reversal prevention
US11495984B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2019 |
| Grant date | Nov 8, 2022 |
| Priority date | — |
| Expiry date | May 14, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Aspects of the present disclosure provide for a circuit. In at least some examples, the circuit includes a dual-role port for transferring power to the circuit and from the circuit. The circuit also includes a micro-processing unit. The micro-processing unit is configured to control the circuit to operate as a sink device to receive power from a source device via the dual-role port when the power supply includes a first amount of stored energy, detect, at the dual-role port, a change in a termination resistance of the source device, and control the circuit to limit power transfer from the circuit to the power supply via the dual-role port when the power supply changes in status from a sourcing state to a sinking state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.