Title :
A dual-band switching digital controller for a buck converter
Author :
Martin Yeung-Kei Chui ; Wing-Hung Ki ; Chi-Ying Tsui
Author_Institution :
The Hong Kong University of Science and Technology
Abstract :
0.6μm CMOS integrated digital PID controllerf or a buck converfer is fabricated and tested. It conrisfs of: (1) a VCO driving a counter to serve as an ADC; (2) a PID compensator that employs a programmable intwotion time for enhancing accuracy and stability; and (3) a dual-band switching PWM generator with a modified tapped delay line for better output resolution and area efficiency. The converter switches at 1MHz, while the tracking time is 50μ for a step change of IV.
Keywords :
Buck converters; Counting circuits; Digital control; Dual band; Pulse width modulation; Stability; Switches; Three-term control; Voltage; Voltage-controlled oscillators;
Conference_Titel :
Design Automation Conference, 2004. Proceedings of the ASP-DAC 2004. Asia and South Pacific
Conference_Location :
Yohohama, Japan
Print_ISBN :
0-7803-8175-0
DOI :
10.1109/ASPDAC.2004.1337649
