A dynamic-biasing 4× charge pump based on exponential topology

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

4 Scopus Citations
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Author(s)

  • Oi-Ying Wong
  • Hei Wong
  • Wing-Shan Tam
  • Chi-Wah Kok

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)401-414
Journal / PublicationInternational Journal of Circuit Theory and Applications
Volume43
Issue number3
Publication statusPublished - 1 Mar 2015

Abstract

A 4× charge pump using exponential topology is proposed and implemented. Comparing to the conventional implementations, the proposed circuit suppresses the reverse current effectively without using different threshold-voltage transistors and additional capacitors. Also, the body effect found in the charge transfer switches is eliminated. The proposed charge pump is analyzed with the state-space method and fabricated using 0.35 μm complementary metal-oxide-semiconductor process. Results show that the output voltages close to the ideal one, and a maximum power efficiency of 95% was recorded.

Research Area(s)

  • charge pump, DC/DC converter, switched-capacitor, voltage multiplier

Citation Format(s)

A dynamic-biasing 4× charge pump based on exponential topology. / Wong, Oi-Ying; Wong, Hei; Tam, Wing-Shan; Kok, Chi-Wah.

In: International Journal of Circuit Theory and Applications, Vol. 43, No. 3, 01.03.2015, p. 401-414.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review