This paper presents a double-isolated dc-dc converter exploiting integrated LC galvanic barriers. The converter consists of only two dice both fabricated in a 0.35-μm BCD technology with a thick-oxide back-end for 5-kV galvanic isolation. It uses a novel architecture to transmit power and the control feedback signal across two double isolation barriers, which are performed by integrated isolation capacitors and transformers. A resonant mode operation for the isolation networks is exploited to boost efficiency with respect to traditional converter schemes based on series-connected isolation components. Measurements of the dc-dc converter at 3.3-V power supply demonstrate 100-mW dc output power with a power efficiency of 16.8% at a regulated output voltage of 3.3 V.

A Double-Isolated DC-DC Converter Based on Integrated LC Resonant Barriers

Parisi, Alessandro;Ragonese, Egidio
;
Palmisano, Giuseppe
2018-01-01

Abstract

This paper presents a double-isolated dc-dc converter exploiting integrated LC galvanic barriers. The converter consists of only two dice both fabricated in a 0.35-μm BCD technology with a thick-oxide back-end for 5-kV galvanic isolation. It uses a novel architecture to transmit power and the control feedback signal across two double isolation barriers, which are performed by integrated isolation capacitors and transformers. A resonant mode operation for the isolation networks is exploited to boost efficiency with respect to traditional converter schemes based on series-connected isolation components. Measurements of the dc-dc converter at 3.3-V power supply demonstrate 100-mW dc output power with a power efficiency of 16.8% at a regulated output voltage of 3.3 V.
2018
D-class oscillator; electromagnetic (EM) simulations; full-bridge rectifier; galvanic isolation; integrated capacitors; integrated circuits (ICs); integrated transformers; thick silicon oxide.; Electrical and Electronic Engineering
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11769/332260
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