Step-up battery charging management system and control method thereof
US9391467B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2014 |
| Grant date | Jul 12, 2016 |
| Priority date | — |
| Expiry date | Oct 19, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2207/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a battery charger can include: (i) a step-up converter configured to generate an output signal by boosting a DC input voltage, where a threshold voltage is greater than the DC input voltage; (ii) a charging control circuit configured to receive the output signal from the step-up converter, and to control charging of a battery; (iii) the charging control circuit being configured to regulate the output signal to maintain a charging current for the battery charging as a trickle current when a battery voltage is less than the threshold voltage; and (iv) the charging control circuit being configured to charge the battery directly by the output signal when the battery voltage is greater than the threshold voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.