Charger circuit and intelligent charging control method thereof
US10965139B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jan 28, 2019 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | May 30, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00302
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charger circuit and an intelligent charging control method thereof are disclosed. The charger circuit comprises a power circuit used to generate a charging voltage, a charging output switch, an MCU and an electrical appliance plug-in detection circuit, wherein the MCU is connected to a positive output terminal or a negative output terminal of the power circuit through a current sampling element to detect a charging current in a charging loop and is connected to a positive connecting terminal of a charging interface to detect a charging voltage in the charging loop. In this way, a charger is able to intelligently judge whether or not a to-be-charged electrical appliance is plugged into the charging interface, automatically charges the electrical appliance in a corresponding charging mode and effectively prevents overcharging of batteries of consumer electrical appliances, thus, prolonging the battery life and avoiding disasters caused by overcharging of the batteries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.