Power voltage generator and display device having the same
US11632046B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2022 |
| Grant date | Apr 18, 2023 |
| Priority date | — |
| Expiry date | May 30, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power voltage generator includes a booster, a voltage sensor, a constant voltage controller and a constant current controller. The booster is configured to boost an input voltage to an output voltage based on an on-off operation of a switch. The voltage sensor is configured to generate a sensing voltage by sensing the output voltage. The constant voltage controller is configured to generate a first switching signal to control the switch by comparing the sensing voltage with a reference voltage. The constant current controller is configured to generate a gain based on a ratio of an electrode signal of the switch and a target signal by comparing the electrode signal of the switch with the target signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.