Temperature stable integrated circuit full wave level detector incorporating a single operational amplifier stage design
US6456058B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 21, 2000 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Oct 3, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A temperature stable, integrated circuit full wave level detector incorporating a single stage operational amplifier design which does not require, as in prior art implementations, two operational amplifiers to perform a full wave rectification function on an input alternating current (“AC”) signal followed by a comparator to detect the resultant signal level. The full wave level detector of the present invention utilizes but a single amplifier and some additional peripheral components resulting in a saving in on-chip die area in an integrated circuit (“IC”) implementation while also exhibiting excellent temperature stability characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.