Control circuit, battery power supply device and control method
US9479060B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 22, 2015 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | May 22, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control circuit can include: (i) a boost mode controller configured to control a switch type converter to operate in a boost mode such that an input current is less than a first input current threshold, where the switch type converter comprises a first terminal coupled to a power supply line from an external power supply to a load, and a second terminal coupled to a battery; (ii) a buck mode controller configured to control the switch type converter to operate in a buck mode; and (iii) a select circuit configured to select either the boost mode controller or the buck mode controller to control the switch type converter based on a detected value of the input current of the external power supply and a detected value of a battery charging/discharging current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.