Power supply circuit providing control over adaptive charging and charging capability, power supply unit thereof, and charging control method thereof
US11894713B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 14, 2021 |
| Grant date | Feb 6, 2024 |
| Priority date | — |
| Expiry date | Aug 27, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/217
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A voltage supply circuit includes a charging circuit, a window adjustment circuit, a driving voltage adjustment circuit, a sampling and feedback circuit and a storage circuit. The charging circuit includes a modulation input terminal for receiving a control voltage; and an energy supply terminal for selectively outputting a charging energy according to the control voltage. The window adjustment circuit is used to adjust the control voltage according to a sampling output voltage corresponding to an output voltage signal, and output the control voltage. The driving voltage adjustment circuit is used to keep the control voltage within a clamping voltage according to the output voltage signal. The sampling and feedback circuit is used to generate the output voltage signal according to a voltage at the energy supply terminal. The storage circuit is used to store the charging energy to pull up the voltage at the energy supply terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.