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

A Multimode Digitally Controlled Boost Converter With PID Autotuning and Constant Frequency/Constant Off-Time Hybrid PWM Control

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)
Zhonghan Shen ; Fudan Univ., Shanghai, China ; Na Yan ; Hao Min

This paper proposes a multimode digitally controlled boost converter with PID autotuning and constant frequency/constant off-time hybrid pulsewidth modulation (PWM) control. Constant off-time PWM control is introduced in this converter for avoiding the limit cycle oscillation and maintaining a constant dc gain of the control-output transfer function for a high conversion ratio. Discrete-time modeling of constant off-time PWM is given and verified. An autotuning PID compensator based on frequency-response measurement is adopted to compensate the output stage with variable gain and variable corner frequency. PFM is also included in this controller to improve light load efficiency. A new method of automatic PWM/PFM mode switching without current sensing is proposed. Sufficient loop stability margin and optimal efficiency are obtained by using these techniques for a boost converter operating over wide ranges of output voltages, load currents, and external components. Experimental results are shown for an asynchronous boost converter with 2.5-V input voltage, 3-12 V, and 1-400 mA output.

Published in:

Power Electronics, IEEE Transactions on  (Volume:26 ,  Issue: 9 )

Date of Publication:

Sept. 2011

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.