Adaptive on-chip power supply with robust one-cycle control technique

Dongsheng Ma, Janet Wang, Pablo Vozqua

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

In this paper, an integrated adaptive output switching converter is proposed. The design uses a one-cycle control for fast line regulation and a single outer loop for load regulation and fine tuning. A switched-capacitor integrator is introduced in the one-cycle control to obtain positive integration with a single positive power supply, allowing a standard low-cost CMOS fabrication process. To improve the efficiency, a dynamic loss control technique is presented. HSPICE Simulations are performed with transistor models from TSMC 0.35μm N-well CMOS fabrication process. With a supply voltage of 3 V, a voltage ripple of less than 15 mV is measured. The maximum efficiency is 92% with a load power of 475 mW. The converter exhibits a tracking speed of 2 μs/V for both start-up and reference voltage transitions. The recovery time for a 20% load change is approximately 2.6μs. The overall design exhibits superior system robustness to battery perturbations, noise and process variations.

Original languageEnglish (US)
Title of host publicationISLPED'06 - Proceedings of the 2006 International Symposium on Low Power Electronics and Design
Pages394-399
Number of pages6
DOIs
StatePublished - Dec 1 2006
EventISLPED'06 - 11th ACM/IEEE International Symposium on Low Power Electronics and Design - Tegernsee, Bavaria, Germany
Duration: Oct 4 2006Oct 6 2006

Publication series

NameProceedings of the International Symposium on Low Power Electronics and Design
Volume2006
ISSN (Print)1533-4678

Other

OtherISLPED'06 - 11th ACM/IEEE International Symposium on Low Power Electronics and Design
CountryGermany
CityTegernsee, Bavaria
Period10/4/0610/6/06

Keywords

  • Adaptive output
  • One-cycle control
  • Robust design
  • Switching converter

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Ma, D., Wang, J., & Vozqua, P. (2006). Adaptive on-chip power supply with robust one-cycle control technique. In ISLPED'06 - Proceedings of the 2006 International Symposium on Low Power Electronics and Design (pp. 394-399). (Proceedings of the International Symposium on Low Power Electronics and Design; Vol. 2006). https://doi.org/10.1145/1165573.1165670