Delivered power detection for power amplifiers and related systems and methods
US8471550B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 5, 2010 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Jun 27, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/3042
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Delivered power detection for power amplifiers (PAs) and related systems and methods are disclosed. The disclosed embodiments and techniques provide a delivered power indication for systems using PAs, including such systems for cellular telephone applications, allow power detection circuitry to be integrated on the same integrated circuit die as the PA, and provide power detection circuitry with output signals at baseband frequencies. In one embodiment, the delivered power detection circuitry includes output voltage level detection circuitry and output current level detection circuitry that provide current signals to multiplier circuitry, which in turn provides current output signals proportional to the actual delivered power to the load as represented by the incident power to the load reduced by the reflected power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.