Level shifter circuit with intermediate power domain
US11128300B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2020 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Mar 16, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/215
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A level shifter circuit with an intermediate power domain and method for operating the same is disclosed. The level shifter circuit includes an input circuit, an output circuit, and an intermediate circuit. The input circuit is coupled to receive an input signal from a first voltage domain operating according to a first supply voltage, and generates a first intermediate signal. The intermediate circuit receives the first intermediate signal and generates a second intermediate signal. The output circuit receives the intermediate signal and provides an output signal into a second voltage domain operating at a second supply voltage different from the first. A voltage multiplexer is configured to provide one of the first or second supply voltages to the intermediate circuit depending on a state of the input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.