Level shifter circuit
US7436219B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2006 |
| Grant date | Oct 14, 2008 |
| Priority date | — |
| Expiry date | Dec 30, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/76
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A level shifter circuit includes: K level shifter units for receiving K input signals having a first voltage level range and outputting K output signals having a second voltage level range, wherein the second voltage level range is greater than the first voltage level range. Each level shifter unit is utilized to output an output signal at an output end and includes: a first switch, coupled between the output end and a first voltage source for controlling the electrical connection between the first voltage source and the output end according to an input signal; and (K−1) second switches, connected in parallel between the output end and a second voltage source, for respectively controlling its ON/OFF status according to (K−1) output signals except for the output signal. K is an integer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.