Level shifter
US7002371B2 · kind B2 · utility
16Cited by
6References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2003 |
| Grant date | Feb 21, 2006 |
| Priority date | — |
| Expiry date | Jan 29, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/356113
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A level shifter with cross coupled inverters having different threshold voltages. The output of the level shifter is pulled to a known voltage state during power up. In some examples, one of the inverters includes an additional N-channel transistor wherein the threshold voltage is greater the threshold voltage of the other inverter due to the additional transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.