Method and apparatus for active load impedance monitoring
US10132852B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2014 |
| Grant date | Nov 20, 2018 |
| Priority date | — |
| Expiry date | Feb 25, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3852
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus that includes a power amplifier; a load that is operatively connected to be electrically driven from the power amplifier; and an impedance monitor that is configured to in real-time identify a favorable segment within an output waveform of the power amplifier, model the baseline power spectral density of a load driven by the power amplifier during the identified segment of the output waveform, sample an empirical power spectral density of the load during the identified segment of the output waveform, and indicate a load fault in the event that the empirical power spectral density deviates from the baseline power spectral density beyond at least one pre-determined error criteria.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.