Method and apparatus for temperature compensation of filter circuits
US8482339B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 14, 2010 |
| Grant date | Jul 9, 2013 |
| Priority date | — |
| Expiry date | Dec 3, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H11/1252
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A voltage integrator circuit and a filter circuit are configurable to adjust their outputs in order to compensate for various circuit elements' variations with temperature. The voltage integrator circuit performs temperature compensation through the adjustment in resistance value of a single resistive element in response to a received control signal. The control signal correlates with a detected temperature value and causes the resistive element to adjust its resistance value in a manner that maintains the transfer function of the voltage integrator circuit under varying temperatures. The filter circuit comprises one or more of the voltage integrator circuits and maintains its transfer function under varying temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.