Overcurrent protection circuit and display device
US12334721B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2022 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Dec 21, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0036
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided are an overcurrent protection circuit and a display device, where the overcurrent protection circuit includes a drive transistor, an operational amplifier, a buffer, a peak current detector, and a peak current controller; the output terminal of the operational amplifier is connected with the buffer, and the operational amplifier controls the drive transistor through the buffer; the output terminal of the peak current controller is electrically connected with the gate control terminal of the buffer; when the peak current detector does not detect an overload current, the peak current detector controls the operational amplifier to control the gate of the drive transistor; when the peak current detector detects an overload current, the peak current detector controls the peak current controller to control the gate of the drive transistor to maintain the overcurrent protection circuit to work.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.