Concept for a Modular Class-D Amplifier for MPI Drive Field Coils

  • Jonas Jockram
  • Oliver Woywode
  • Bernhard Gleich
  • Klaus Hoffmann
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 140)

Abstract

This paper studies the performance of a modular class-D switching amplifier to supply the drive field coils of a magnetic particle imaging scanner with a high quality sinusoidal voltage. While a class-A or class-AB amplifier is capable of delivering such a sinusoidal voltage, its low efficiency does not qualify for an economic solution. Therefore, a class-D amplifier has been used. The modular amplifier consists of commercially available class-D amplifier chips, which are connected in parallel, to achieve the required output power. This paper describes the simulation model and a hardware setup of the modular amplifier which consists of 10 chips connected in parallel.

Keywords

Output Power Output Filter Hardware Setup Amplifier Module Exciting Coil 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    NXP Semiconductors: Datasheet TDA8954 2 × 210 W class-D power amplifier, Rev. 01, December 24 (2009)Google Scholar

Copyright information

© Springer-Verlag GmbH Berlin Heidelberg 2012

Authors and Affiliations

  • Jonas Jockram
    • 1
  • Oliver Woywode
    • 1
  • Bernhard Gleich
    • 2
  • Klaus Hoffmann
    • 3
  1. 1.Philips Healthcare, GTC DevelopmentPhilips Medical Systems DMC GmbHHamburgGermany
  2. 2.Research LaboraroriesPhilips Technologie GmbH Innovativ TechnologiesHamburgGermany
  3. 3.Department of Electrical Engineering, Power ElectronicsHelmut-Schmidt-UniversityHamburgGermany

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