Wide voltage range level shifter with symmetrical switching
US7855575B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2009 |
| Grant date | Dec 21, 2010 |
| Priority date | — |
| Expiry date | Sep 25, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/35613
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Described herein is the method and apparatus for generating symmetrical level shifted signals by a symmetrical level shifter. The symmetrical level shifter comprises an edge detector operable to generate transition edge based pulses from an input signal based on a first power supply level; a voltage level shifter, coupled with the edge detector, operable to convert the transition edge based pulses based on the first power supply level to edge based pulses based on a second power supply level; and a divider circuit, coupled with the voltage level shifter, operable to generate an output signal from the edge based pulses based on the second power supply level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.