Timing alignment for power amplifier
US9184704B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 7, 2014 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Apr 7, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2201/3227
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
There is described a method of controlling signal alignment in a power amplifier, comprising: receiving an input signal to be amplified; receiving a supply voltage for the power amplifier, the supply voltage being derived in dependence on the signal to be amplified; amplifying the input signal to produce an output signal; comparing the output signal with a plurality of distorted versions of the input signal, each distorted version of the input signal being associated with a different time delay value; and adjusting the timing of either the input signal or the supply voltage by an amount in dependence on a time delay value determined to be associated with a distorted version of the input signal which most closely matches the output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.