Title: A 265Vrms Mains Interface Integrated in 0.35um CMOS
Authors: Meyvaert, Hans ×
Smeets, Patrick
Steyaert, Michiel #
Issue Date: 20-Sep-2012
Host Document: European Solid-State Circuits Conference pages:438-441
Series Title: Proceedings of the 38th European Solid-State Circuits Conference
Conference: European Solid-State Circuits Conference edition:38 location:Bordeaux date:17-21 Sep 2012
Abstract: A fully integrated 265Vrms input AC-DC interface is demonstrated in a 0.35um CMOS technology, needing only 1 external low voltage SMD capacitor for improved performance. The converter can directly interface the universal line voltage (50-60Hz) and converts this into a regulated DC voltage of 3.3V. High input voltage operation is made possible through custom layout of high voltage capable passive components. A model of an ideal AC-DC capacitive step-down converter is presented and the proposed circuit architecture is designed to approach maximum attainable power throughput. The prototype converter demonstrates a maximum output power of 287uW on a die area of 6mm2 and enables integrated circuits to be supplied straight from the ubiquitus mains voltage. Hereby circumventing the need for traditional converters using high voltage discrete components.
Publication status: published
KU Leuven publication type: IC
Appears in Collections:ESAT - MICAS, Microelectronics and Sensors
× corresponding author
# (joint) last author

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