Power strategy in DC/DC converters to increase efficiency of electrical stimulators

  • Pablo Aqueveque | paaqueve@udec.cl Universidad de Concepción, Chile.
  • Vicente Acuña Université Libre de Bruxelles, Brussels, Belgium.
  • Francisco Saavedra Universidad de Concepción, Chile.
  • Adrien Debelle Université Libre de Bruxelles, Brussels, Belgium.
  • Laurent Lonys Université Libre de Bruxelles, Brussels, Belgium.
  • Nicolas Julémont Université Libre de Bruxelles, Brussels, Belgium.
  • François Huberland Université Libre de Bruxelles, Brussels, Belgium.
  • Carmen Godfraind Université Libre de Bruxelles, Brussels, Belgium.
  • Antoine Nonclercq Université Libre de Bruxelles, Brussels, Belgium.

Abstract

Power efficiency is critical for electrical stimulators. Battery life of wearable stimulators and wireless power transmission in implanted systems are common limiting factors. Boost DC/DC converters are typically needed to increase the supply voltage of the output stage. Traditionally, boost DC/DC converters are used with fast control to regulate the supply voltage of the output. However, since stimulators are acting as current sources, such voltage regulation is not needed. Banking on this, this paper presents a DC/DC conversion strategy aiming to increase power efficiency. It compares, in terms of efficiency, the traditional use of boost converters to two alternatives that could be implemented in future hardware designs.

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Published
2016-09-13
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Section
2016 IFESS Conference
Keywords:
Power strategy, Implanted stimulator, Wearable stimulator, High efficiency
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How to Cite
Aqueveque, P., Acuña, V., Saavedra, F., Debelle, A., Lonys, L., Julémont, N., Huberland, F., Godfraind, C., & Nonclercq, A. (2016). Power strategy in DC/DC converters to increase efficiency of electrical stimulators. European Journal of Translational Myology, 26(3). https://doi.org/10.4081/ejtm.2016.6061

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