Battery powered circuit and method
US9559542B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 3, 2015 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Jul 27, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2207/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In one embodiment, an apparatus can include: (i) a power converter having an output terminal configured to supply power for a load; (ii) a first switch coupled between the power converter and an input voltage; (iii) a second switch coupled between a battery and the output terminal of the power converter; (iv) a PWM controller configured to control a switching state of a power transistor in the power converter; (v) a mode-switching circuit configured to select a charging mode or a discharging mode based on a voltage of the battery and a charging current; and (vi) a charging-discharging circuit configured to control the second switch based on the mode selection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.