Direct current voltage conversion circuit and liquid crystal display device
US10181790B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 2016 |
| Grant date | Jan 15, 2019 |
| Priority date | — |
| Expiry date | Jan 2, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0012
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A direct-current voltage conversion circuit and a liquid crystal display device are disclosed. The direct-current voltage conversion circuit includes a control chip, a conversion circuit and a protection circuit, wherein, the control chip is electrically connected to the conversion circuit, the control chip generates a control signal and an original voltage signal; the conversion circuit receives the control signal and the original voltage signal, and under a controlling of the control signal, obtaining a direct-current voltage signal according to the original voltage signal; the protection circuit detects if the conversion circuit generates an abnormality according to the direct-current voltage signal, and turning off the conversion circuit when the conversion circuit generates the abnormality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.