Reconfigurable bias and supply drivers for radio frequency power amplifiers
US9515622B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2014 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Dec 23, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/7236
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In some example embodiments, there is provided an apparatus. The apparatus may include a direct current voltage source and/or an alternating current voltage source to track a power envelope of a radio frequency signal. The apparatus may further include first and second power amplifiers with bias voltage inputs and a supply voltage inputs, and a switch matrix. The first input may be coupled to the direct current voltage source, the second input may be coupled to the alternating current voltage source. The outputs may be coupled to the bias and supply inputs to the power amplifiers. The switch matrix may enable activation of the first power amplifier, the second power amplifier, both the first and second power amplifiers, or neither power amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.