datasheets.com EBN.com EDN.com EETimes.com Embedded.com PlanetAnalog.com TechOnline.com  
Events
UBM Tech
UBM Tech
Welcome Guest Log In | Register

Power detection and control for mobile handsets, (Part 3 of 3): Power control feedback

Authored on: Jun 8, 2009 by David Ripley

Technical Paper

0 0
More InfoLess Info
A key requirement within the modern mobile-handset power amplifier (PA) is a need to detect and control the transmitted power. This three-part article first explores the various methods of power control for amplifiers operating in both saturated and linear modes. The discussion continues with power detection techniques used in modern handsets. Topics include current, voltage, diode, power, logarithmic (log), and RMS detection, including performance characteristics such as RF bandwidth, video bandwidth, dynamic range, temperature compensation, and VSWR insensitivity.

This three-part series examines the subject as follows:

  • Part 1: Power amplifier biasing for power control
  • Part 2: Power detection methods
  • Part 3: Power control feedback


Please disable any pop-up blockers for proper viewing of this paper.

0 comments
write a comment

Please Login

You will be redirected to the login page

×

Please Login

You will be redirected to the login page

×

Please Login

You will be redirected to the login page