Control circuit for constant-current drive circuit and constant-current drive circuit
US11839002B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2022 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Jul 28, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control circuit for a constant-current drive circuit, as well as a constant-current drive circuit are disclosed. The control circuit can obtain output information of the constant-current drive circuit and use it in combination with reference information to determine, according to an output condition corresponding to the current load of the constant-current drive circuit, a time point for the system to enter or exit a rapid drive mode. Therefore, it can be suitably used in various application scenarios to determine a time point for the system to entry into or exit from the rapid start mode. Compared with fast charging for a fixed period of time as used in the prior art, embodiments of the present invention can effectively overcome the problem of easy overshooting or inadequate acceleration during start as found in various applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.