SLiMO: A 61.8% Efficiency Single-Link Multiple-Output Isolated DC-DC Converter Using Low-Cost FPC Micro- Transformer with Local Voltage and Global Power Regulation

Jiang，Jianqiang1; Tang，Junyao1; Zhao，Lei1; Zhan，Chenchang2; Huang，Cheng1

10.1109/CICC57935.2023.10121223

2023

0886-5930

979-8-3503-9949-3

Proceedings of the Custom Integrated Circuits Conference

2023-April

1-2

23-26 April 2023

San Antonio, TX, USA

Galvanically isolated DC-DC converters are gaining more attention in the industry due to the increasing demands in automotive, industrial, powerline, and medical applications. They are widely used to provide protection between different domains while being able to transmit power through the barrier. Traditional discrete solutions can provide watt-level power with 70-80% efficiency, however, the use of bulky transformers becomes the primary bottleneck to be further miniaturized to package-level. Recently, emerging research in both industry and academia has led to developing in-package solutions with micro-transformers [1-5]. However, special processes are needed for isolation between the windings in silicon/SOI substrate and to build the magnetic core [2-4], which are expensive and not widely available. The efficiency was also degraded and peaked at only ∼53% [5] in state-of-the-art works. In addition, many applications require multiple rails to support, e.g., multiple gate drivers or other loading circuits such as sensors and data transceivers. This is achieved by either using multiple converters or stages, which results in an increase in cost and form-factor or further degradation in efficiency. [6] introduced an active rectifier supporting two outputs, but it was for wireless power transfer systems and its voltage regulation was achieved only at the receiver (Rx) side, while the transmitter (Tx) was working in open loop.

Industries Transmitters Windings DC-DC power converters Wireless power transfer Transformers Transceivers

其他

英语

EI

20232214152905

Costs ; DC transformers ; DC-DC converters ; Electric rectifiers ; Energy transfer ; Inductive power transmission ; Medical applications ; Radio transceivers ; Transformer protection ; Voltage regulators

Electric Components:704.1 ; Electric Power Transmission:706.1.1 ; Radio Systems and Equipment:716.3 ; Control Equipment:732.1 ; Cost and Value Engineering; Industrial Economics:911 ; Production Engineering:913.1 ; Accidents and Accident Prevention:914.1

2-s2.0-85160018272

Scopus

1.Iowa State University,Ames,United States
2.Southern University of Science and Technology,Shenzhen,China

Jiang，Jianqiang,Tang，Junyao,Zhao，Lei,et al. SLiMO: A 61.8% Efficiency Single-Link Multiple-Output Isolated DC-DC Converter Using Low-Cost FPC Micro- Transformer with Local Voltage and Global Power Regulation[C],2023:1-2.