Digital multi-level envelope tracking for wide-bandwidth signals
US9438172B2 · kind B2 · utility
28Cited by
5References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 29, 2014 |
| Grant date | Sep 6, 2016 |
| Priority date | — |
| Expiry date | Sep 29, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/102
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Digital envelope tracking with multilevel supply voltages is performed for wide-bandwidth signals. A digital control component generates a digital control code that facilitates switching of resistor values of one or more resistors coupled between a power amplifier and a supply voltage of plurality of supply voltages. A driver component supplies an envelope voltage of the plurality of supply voltages for the power amplifier as a function of the digital control code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.