Title :
Analysis of a high performance voltage regulator with non-linear multi-mode control: Bandwidth and large transient response
Author :
Pan, S. ; Jain, P.K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Queen´´s Univ., Kingston, ON, Canada
Abstract :
A novel digital adaptive voltage positioning (digital AVP) technique with dual-voltage-loop was proposed in. Good transient performance had been achieved without using complicated control. In this paper, a small signal model is proposed for this mixed-signal digital controller. It is revealed by this small signal model that the inner current loop is in analog and the voltage loop is in digital, thus the controller can benefit from both: having valuable features of digital control but without limitations such as limit cycle. On the other hand, dynamic behavior of the voltage regulator with this digital AVP controller under large load transient is analyzed. Decoupling between bandwidth and large transient response with this novel digital AVP controller is verified.
Keywords :
adaptive control; digital control; nonlinear control systems; position control; transient analysis; transient response; voltage control; voltage regulators; digital AVP controller; digital adaptive voltage positioning technique; high performance voltage regulator analysis; inner current loop; large load transient analysis; large transient response; mixed-signal digital controller; nonlinear multimode control; Bandwidth; Digital control; Nonlinear control systems; Nonlinear dynamical systems; Performance analysis; Regulators; Transient analysis; Transient response; Virtual reality; Voltage control;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2010 Twenty-Fifth Annual IEEE
Conference_Location :
Palm Springs, CA
Print_ISBN :
978-1-4244-4782-4
Electronic_ISBN :
1048-2334
DOI :
10.1109/APEC.2010.5433626
