Control circuit for suppressing electromagnetic interference signals
US10396656B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2018 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Nov 9, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2210/028
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A control circuit for suppressing electromagnetic interference signal has an input and an output and a variable gain filter circuit with a first gain factor that is variable. The variable gain filter circuit receives a signal indicative of an electromagnetic interference signal and outputs a signal to a controlled signal source, which a second gain factor. The control circuit also has a controller operably connected to the variable gain filter circuit. The controller receives a signal indicative of an output signal at the output of the control circuit and outputs a control signal to the variable gain filter circuit. The control signal is based on the signal indicative of the output signal at the output of the control circuit, and the control signal controls the first gain factor and reduces the electromagnetic interference signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.