Battery charge and discharge management circuit and electronic device thereof
US9654005B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 19, 2015 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | Nov 26, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2207/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus can include: (i) a first switch coupled to an external interface and an inductor; (ii) a second switch coupled to ground and a common node between the first switch and the inductor; (ii) a third switch coupled to ground and a common node between the inductor and a fourth switch, where the inductor and first, second, third, and fourth switches form a power converter; (iii) a charge and discharge control circuit coupled to the power converter, and being configured to control the first, second, third, and fourth switches; (iv) an internal load coupled to said fourth switch; and (v) a chargeable battery coupled to the fourth switch, where the battery is configured to provide power to the internal load when the external interface is disconnected from the external power supply and the external load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.