Power delivery system with charging current limiting
US11556161B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2021 |
| Grant date | Jan 17, 2023 |
| Priority date | — |
| Expiry date | Sep 28, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2310/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power delivery system for a computing device includes a power connector, a power delivery switch, a charging circuit, and a hardware controller. The power connector is configured to selectively electrically connect with a power supply unit. The power delivery switch is electrically intermediate the power connector and the charging circuit. The hardware controller is configured to limit a charging current at the charging circuit to a sub-threshold level for a current-limiting duration based at least on initiation of a transition of the power delivery switch from an OFF state to an ON state that lasts for a switching duration that is less than the current-limiting duration. The charging circuit is configured to modulate the charging current to a regulated charging current and deliver the regulated charging current to a system load of the computing device after the current-limiting duration has elapsed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.