Digital data handling in a circuit powered in a high voltage domain and formed from devices designed for operation in a lower voltage domain
US8421501B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2011 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Dec 7, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/018521
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Circuitry, operating in a high voltage domain, including a high and low voltage inputs, and including a plurality of devices designed to operate optimally powered in a native voltage domain that is lower voltage than said high voltage domain and some devices arranged in two sets. The circuitry including a further input for receiving the high native voltage level. Each set having at least one device, a first set being arranged to receive an intermediate low reference voltage level as a low voltage level signal and the high voltage level as a high voltage level signal and the second set being arranged to receive the high native voltage level as a high voltage level signal and the low voltage level as a low voltage level signal. The intermediate low reference voltage level includes a voltage level generated by subtracting the high native voltage level from the high voltage level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.