论文信息 - Modeling and characterization of 0.35 μm CMOS coreless transformer for gate drivers

Modeling and characterization of 0.35 μm CMOS coreless transformer for gate drivers

In this paper, a monolithic solution based on integrated coreless transformer (ICT) for galvanic isolation and power transfer application is demonstrated. First, the characterization of ICTs is investigated by a set of five devices with stacked topology but different geometrical parameters fabricated in a 0.35 μm H35B4M3 CMOS technology from AMS. Second, the behavior of these ICTs is also predicted by electromagnetic (EM) simulation in Ansoft HFSS and analyzed by their equivalent electrical model. The measured results have shown a peak of voltage gain of -3 dB with the design of 300 μm of diameter while charging with the input capacitance of 900 fF of the demodulated circuit. Finally, an integrated gate driver is also fabricated using the optimal design of ICT, achieving a compact area of 0.72 mm2 and offers 1.8 kV of isolation. The experimental results of this gate driver have validated the use of isolated signal and energy transfer by on-chip transformer for both high side and low side applications.

Yves Lembeye | Nicolas Rouger | Jean-Daniel Arnould | Duc-Ngoc To | Nicolas Corrao

[1] N. Rouger,et al. Integrated gate driver circuits with an ultra-compact design and high level of galvanic isolation for power transistors , 2014 .

[2] Hitoshi Sumida,et al. A Fully Integrated 3D TSV Transformer for High-Voltage Signal Transfer Applications , 2013 .

[3] Minoru Fujishima,et al. New On-Chip De-Embedding for Accurate Evaluation of Symmetric Devices , 2008 .

[4] Rongxiang Wu,et al. A novel silicon-embedded coreless transformer for isolated DC-DC converter application , 2011, 2011 IEEE 23rd International Symposium on Power Semiconductor Devices and ICs.

[5] R. Herzer,et al. IGBT driver chipset for high power applications , 2002, Proceedings of the 14th International Symposium on Power Semiconductor Devices and Ics.

[6] Simonot Timothe,et al. Design and characterization of a signal insulation coreless transformer integrated in a CMOS gate driver chip , 2011, 2011 IEEE 23rd International Symposium on Power Semiconductor Devices and ICs.

[7] Primary Side Asic,et al. 1700V Fully Coreless Gate Driver with Rugged Signal Interface and SwitchingIndependent Power Supply , 2008 .

[8] Jean-Baptiste Begueret,et al. Transformer topologies for mmW integrated circuits , 2009, 2009 European Microwave Conference (EuMC).

[9] J.A. Yeh,et al. Characterization of spiral inductors with patterned floating structures , 2004, IEEE Transactions on Microwave Theory and Techniques.