CMOS exponential function generating circuit with temperature compensation technique
US7180358B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2004 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | Feb 14, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45508
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Provided is a CMOS exponential function generating circuit capable of compensating for the exponential function characteristic according to temperature variations. The exponential function generating circuit includes an voltage scaler scaling the value of an external gain control voltage signal, an exponential function generating unit generating exponential function current and voltage in response to a signal output from the voltage scaler, a reference voltage generator providing a reference voltage to the exponential function generating unit, and a temperature compensator compensating for the exponential function characteristic according to temperature variations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.