Charging method and portable electronic device using the same
US10312701B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2016 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | Oct 13, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0071
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charging method of a portable electronic device, adapted to charge a battery module of a portable electronic device, the charging method comprising detecting a battery voltage and a charging current of the battery module; determining whether the portable electronic device operates at a constant current mode according to the battery voltage; entering an over voltage protection charging loop while the portable electronic device operates at the constant current mode and allows the battery module to be charged up at a maximum charging voltage, and leaving the over voltage protection charging loop while the charging current is smaller than a predetermined current, wherein the maximum charging voltage is gradually decreased according to a comparison result between the battery voltage and an overcharging protection voltage; and setting the maximum charging voltage as a full charge voltage while leaving the over voltage protection charging loop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.