Wang, Ningning; Kulkarni, Santosh; Jamieson, Brice; Rohan, James; Casey, Declan; Roy, Saibal; Ó Mathúna, Cian S.

2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

High efficiency Si integrated micro-transformers using stacked copper windings for power conversion applications

2012

January

Validated

1

WOS: 18 ()

Thin-film microtransformer Frequency Converters

411

416

Orlando, Florida, USA

05-FEB-12

09-FEB-12

This paper details the design, fabrication, and characterization of silicon integrated micro-transformers. Two types of race-track shaped micro-transformers, single copper winding or single layer metal (SLM) and double copper winding or double layer metal (DLM) were designed and fabricated using standard CMOS processing. The DLM devices have higher inductance density than SLM devices realized within similar footprint area. The design study showed that the efficiency of micro-transformers increased from 37% for SLM designs to over 75% for DLM transformers at 20 MHz.

https://ieeexplore.ieee.org/document/6165852

10.1109/APEC.2012.6165852