Fast charging driver
US12155256B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2022 |
| Grant date | Nov 26, 2024 |
| Priority date | — |
| Expiry date | Jul 19, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2310/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a fast charging driver. The fast charging driver is configured to charge a battery of an electronic device. The fast charging driver includes a fast charging circuit and a charging controller. The fast charging circuit includes a first depletion-type GaN transistor, a first enhancement-type field effect transistor, a second depletion-type GaN transistor and a second enhancement-type field effect transistor. The charging controller is configured to control the fast charging circuit to operate in a constant current mode or a constant voltage mode according to a battery level of the battery. By utilizing the first depletion-type GaN transistor and the second depletion-type GaN transistor with a characteristic of a relatively low switching loss, the power consumption during charging the battery by the fast charging driver is decreased to improve the charge speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.