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A non-isolated asynchronous low power high voltage boost converter for discontinuous conduction mode and portable applications

Vanselow, Frank; Kinzel, Bernadette; Maurer, Linus; Isa, Erkan

This paper demonstrates the feasibility of a nonisolated single inductor asynchronous boost converter for driving piezoelectric actuators up to 100 V. The realized device is using a novel 700V bulk 0.35um CMOS XFAB technology. The control scheme for the boost converter, working in discontinuous conduction mode (DCM) only, is using a peak-current control scheme with adaptive off-time. For an input voltage range between 2.5V and 6V and output voltage up to 100V it achieves a peak-efficiency of 70% by using a die area of 22.9 mm2.

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Publication date:
April 19, 2018
DOI:
10.1109/APEC.2018.8341283

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Keyword(s):
DCM High Voltage Boost Converter DCDC converter Peak Current Control
Grants:
European Commission:
  • ADMONT - Advanced Distributed Pilot Line for More-than-Moore Technologies (661796)
Meeting:
2018 IEEE Applied Power Electronics Conference and Exposition (APEC), San Antonio, TX, USA, 4-8 March 2018
Communities:
License (for files):
Creative Commons Attribution 4.0 International

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