Patent · US Active

Envelope tracking system and method for calibrating a supply voltage of an envelope tracking power amplifier

US8737940B1 · kind B1 · utility

9Cited by

0References

20Claims

0Family size

Assignee

Intel Mobile Communications GmbH · DE

Inventors

Andreas Langer · Munich, DE
Gunther Kraut · Egmating, DE
Berndt Pilgram · Munich, DE

Key dates

Filing date	Feb 28, 2013
Grant date	May 27, 2014
Priority date	—
Expiry date	Feb 28, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH03G3/3042
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A method for calibrating a supply voltage of an envelope tracking PA (power amplifier) is provided. The method includes obtaining a plurality of calibrated PA supply voltage values using a PA output power sequence having a plurality of different PA output power values. Thereby, an order of the PA output power values of the PA output power sequence is chosen such that a junction temperature of the PA is maintained during calibration within a temperature range that occurs during non-calibration envelope tracking operation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.