Title :
Fully integrated fast response Switched-Capacitor DC-DC converter using reconfigurable interleaving
Author :
Salem, Loai ; Ismail, Yehea
Author_Institution :
Nano-Electron. Integrated Syst. Center (NISC), Northwestern Univ., Cairo, Egypt
Abstract :
A novel double-bound hysteretic regulation scheme to control multi-phase interleaved Switched-Capacitor DC-DC converters is presented. The control scheme adjusts the number of interleaved phases with the SC converter´s switching frequency to significantly reduce the required operating frequency of the control comparator, enabling the practical application of hysteretic control with large number of interleaved phases. A 16-phase 2:1 SC converter is designed in 65-nm TSMC low-power CMOS process using the proposed technique. The converter with the new hysteretic control achieves fast dynamic response under fast varying load currents.
Keywords :
CMOS integrated circuits; DC-DC power convertors; comparators (circuits); switched capacitor networks; TSMC low-power CMOS process; comparator; double-bound hysteretic regulation; fast dynamic response; fully integrated fast response switched-capacitor DC-DC converter; multi-phase interleaved switched-Capacitor DC-DC converters; reconfigurable interleaving; switching frequency;
Conference_Titel :
Energy Aware Computing (ICEAC), 2010 International Conference on
Conference_Location :
Cairo
Print_ISBN :
978-1-4244-8273-3
DOI :
10.1109/ICEAC.2010.5702302
