Battery charging systems and methods
US10263449B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2017 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Jun 30, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/028
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A loudspeaker battery charging device comprises a three-position selector that establishes one of a first, second, or third charging mode for charging a battery of a loudspeaker. The first charging mode pertains to an off state of the loudspeaker. The second charging mode pertains to an on state of the loudspeaker. The third charging mode pertains to a fast charge state of the loudspeaker. A controller receives a signal from the three-position power switch indicating a selected charging mode of the first, second, or third charging mode. A switch circuit outputs a first power-supplying level in response to the first or second charging mode and outputs a second power-supplying level higher than the first power-supplying level in response to the third charging mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.