Cart (Loading....) | Create Account
Close category search window

A Simple Digital Autotuning For Analog Controller in SMPS

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Saggini, S. ; Dept. of Electr., Mech., & Manage. Eng., Univ. of Udine, Udine, Italy ; Costabeber, Alessandro ; Mattavelli, P.

This paper discusses the self-tuning capabilities of an analog current-mode controller for switch-mode power supplies. The proposed tuning techniques are based on the insertion of nonlinear (NL) blocks in the analog control loop and the generation of a controlled oscillation on the output voltage, in order to measure the closed-loop properties like gain margin, phase margin, and crossover frequency and to tune the analog controller according to the desired specifications. The NL blocks are based either on the NL gain or NL phase. The most relevant properties are as follows: 1) the oscillation amplitude is controlled by the NL action during the tuning procedure; 2) A/D converters are not required; 3) the parameter variations can be obtained with ancillary analog blocks (variable gain operational transconductance amplifier, switched capacitors, etc.); and 4) the tuning digital control algorithm is simple. Experimental results on a 10 A, 1.5 V point-of-load converter, where the controller tuning has been implemented using components off-the-shelf and a field-programmable gate array are provided to show the properties of the proposed system.

Published in:

Power Electronics, IEEE Transactions on  (Volume:25 ,  Issue: 8 )

Date of Publication:

Aug. 2010

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.