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

Dongsheng Ma, Meiling 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 publicationProceedings of the International Symposium on Low Power Electronics and Design
Pages394-399
Number of pages6
Volume2006
DOIs
Publication statusPublished - 2006
EventISLPED'06 - 11th ACM/IEEE International Symposium on Low Power Electronics and Design - Tegernsee, Bavaria, Germany
Duration: Oct 4 2006Oct 6 2006

Other

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

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Keywords

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

ASJC Scopus subject areas

  • Engineering(all)

Cite this

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