Driving circuit having a level shifter receiving an input signal from previous-stage
US11620940B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2022 |
| Grant date | Apr 4, 2023 |
| Priority date | — |
| Expiry date | Feb 18, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D62/371
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a driving circuit, including a transistor and a level shifter. The first terminal of the transistor is electrically connected to a light emitting diode and is configured to receive a supply voltage. The second terminal of the transistor is configured to receive a first reference voltage. The level shifter is configured to receive an input signal from a previous-stage driving circuit and adjust the voltage level of the input signal according to a voltage operating range formed by the supply voltage and the first reference voltage to generate a level-shifted signal corresponding to the voltage operating range and configured to control the transistor. The input signal varies between a second reference voltage and the supply voltage. The second reference voltage and the first reference voltage are different from each other and both lower than the supply voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.