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Galvanically Isolated DC-DC Converter Using a Single Isolation Transformer for Multi-Channel Communication


Abstract:

This paper presents a galvanically isolated dc-dc converter with multi-channel communication exploiting a single isolation transformer. The proposed architecture makes co...Show More

Abstract:

This paper presents a galvanically isolated dc-dc converter with multi-channel communication exploiting a single isolation transformer. The proposed architecture makes compliant both regulated output power and data transmission on the same isolation physical link by using ASK modulation of the power signal and data/control signal multiplexing. The dc-dc converter consists of two integrated chips fabricated in 0.18-μm BCD and 0.13-μm CMOS technologies, respectively, along with a thick polyimide transformer chip able to comply with reinforced isolation requirements. The dc-dc converter delivers an isolated output power up to 50 mW at 3.3-V output voltage, while providing three data channels with a data rate up to 10 Mb/s.
Published in: IEEE Transactions on Circuits and Systems I: Regular Papers ( Volume: 67, Issue: 12, December 2020)
Page(s): 4434 - 4444
Date of Publication: 15 July 2020

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