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Power Electronics for LED Based General Illumination

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Wideband Continuous-time ΣΔ ADCs, Automotive Electronics, and Power Management

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Abstract

This work presents a 7.5-W output power 96 % efficiency capacitor-free single-inductor 4-channel all-digital integrated DC-DC LED driver in a 0.18 µm technology, with up to 24 V input voltage and 1-A LED current for general lighting. It is based on the use of laterally double-diffused DMOS transistors, which offer LED string isolation without any other external component compared to LDMOS. The single-inductor approach is the smallest possible form factor and lowest BOM for multi-channel LED drivers. More than 90 % efficiency in a wide range of 20 mA in DCM to 500 mA in CCM is presented.

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Authors and Affiliations

  1. Integrated Analog Circuits & RF Systems Laboratory, RWTH Aachen University, Aachen, Germany

    Stefan Dietrich & Stefan Heinen

Authors
  1. Stefan Dietrich
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  2. Stefan Heinen
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Correspondence to Stefan Dietrich .

Editor information

Editors and Affiliations

  1. Department of Physics “ G. Occhialini, University of Milan, MILANO, Milano, Italy

    Andrea Baschirotto

  2. Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands

    Pieter Harpe

  3. Electronic Instrumentation Laboratory, Delft University of Technology, Delft , The Netherlands

    Kofi A. A. Makinwa

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Dietrich, S., Heinen, S. (2017). Power Electronics for LED Based General Illumination. In: Baschirotto, A., Harpe, P., Makinwa, K. (eds) Wideband Continuous-time ΣΔ ADCs, Automotive Electronics, and Power Management. Springer, Cham. https://doi.org/10.1007/978-3-319-41670-0_17

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  • DOI: https://doi.org/10.1007/978-3-319-41670-0_17

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-41669-4

  • Online ISBN: 978-3-319-41670-0

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