System and method for reducing transfer function ripple in a logarithmic RMS-to-DC converter
US7106604B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 9, 2004 |
| Grant date | Sep 12, 2006 |
| Priority date | — |
| Expiry date | Sep 10, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/3042
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An RMS-to-DC converter system is disclosed. The system includes a variable gain amplifier having transfer function ripple that receives an input signal and provides an amplifier output signal, a detector that receives the amplifier output signal and provides a detector output signal, an error amplifier that receives the detector output signal and provides an error amplifier output signal having an AC component, and a feedback circuit coupled to the error amplifier output signal and to the variable gain amplifier for providing a feedback signal to the variable gain amplifier that includes an AC component for reducing transfer function ripple of the RMS-to-DC converter system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.