Level shifter
US7466184B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2007 |
| Grant date | Dec 16, 2008 |
| Priority date | — |
| Expiry date | May 30, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/356113
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A device for shifting the level of a first signal of relatively low amplitude which is a function of a first supply voltage to a second signal of relatively high amplitude which is a function of a second supply voltage, comprising, between a first terminal of application of the second supply voltage and a first input terminal, a branch of two transistors of opposite types in series, having their junction point defining an output terminal, the respective control terminals of the transistors being connected to terminals of application of relatively high and low bias voltages by first resistive elements, a second input terminal, receiving the inverse of the signal applied on the first terminal, being connected to each of the control terminals of the transistors by first capacitive elements and the first input terminal being connected to each of the terminals of application of the bias voltages by second capacitive elements in series with second resistive elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.