Title :
Voltage Regulator Modules with Double-Loop Relay Feedback Control
Author :
Yu, Shiang-Hwua ; Huang, Chia-leh
Author_Institution :
Department of Electrical Engineering, National Sun Yat-Sen University, 70 Lien-Hai Road, Kaohsiung, 804, Taiwan, shaun@mail.ee.nsysu.edu.tw
Abstract :
This paper presents a double-loop relay feedback scheme for voltage regulator modules (VRM). The relay feedback control is designed to stabilize the VRM and also to achieve good regulation and fast dynamics. The stability and performance of the presented relay feedback control are analyzed. Also, a 12V/1.5V VRM with proposed control is designed and simulated, which shows an output regulation with 0.33% steady-state output error and 4% load regulation error in response to the load current steps from 65A/1A to 1A/65A, at a slew rate of 6OA/g=m/sec.
Keywords :
dc-to-dc converter; relay feedback system; sliding mode control; voltage regulator module; DC-DC power converters; Error correction; Feedback circuits; Feedback control; Hysteresis; Regulators; Relays; Stability; Switching converters; Voltage control; dc-to-dc converter; relay feedback system; sliding mode control; voltage regulator module;
Conference_Titel :
Power Electronics and Drives Systems, 2005. PEDS 2005. International Conference on
Print_ISBN :
0-7803-9296-5
DOI :
10.1109/PEDS.2005.1619937
