A novel resonant gate driver for high frequency synchronous buck converters

This paper introduces a new resonant gate driver for both the top and bottom switches of a synchronous buck converter. A coupled inductor is used to reduce the size as well as to transfer energy between the top and bottom gate driving. A possible semiconductor integration approach is proposed for this resonant gate driver based on a self-adaptive control method. Theoretical analysis, simulation and experimental results prove that the proposed driver can greatly reduce the gate driving loss and that it is well suited to high-frequency applications.

[1]  Dragan Maksimovic,et al.  A MOS gate drive with resonant transitions , 1991, PESC '91 Record 22nd Annual IEEE Power Electronics Specialists Conference.

[2]  J. Diaz,et al.  A new lossless power MOSFET driver based on simple DC/DC converters , 1995, Proceedings of PESC '95 - Power Electronics Specialist Conference.

[3]  Yuhui Chen,et al.  Resonant Gate Drive Techniques for Power MOSFETs , 2004 .

[4]  Milan M. Jovanovic,et al.  Design considerations for 12-V/1.5-V, 50-A voltage regulator modules , 2000, APEC 2000. Fifteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.00CH37058).

[5]  H. Wiegman.  A resonant pulse gate drive for high frequency applications , 1992, [Proceedings] APEC '92 Seventh Annual Applied Power Electronics Conference and Exposition.

[6]  S. Weinberg,et al.  A novel lossless resonant MOSFET driver , 1992, PESC '92 Record. 23rd Annual IEEE Power Electronics Specialists Conference.

[7]  Hiroshi Iwai,et al.  High performance RF characteristics of raised gate/source/drain CMOS with Co salicide , 1998, 1998 Symposium on VLSI Technology Digest of Technical Papers (Cat. No.98CH36216).

[8]  K. Shenai.  Accurate characterization of gate resistance and high-frequency switching efficiency of a power MOSFET , 1990, 21st Annual IEEE Conference on Power Electronics Specialists.

[9]  F. C. Lee,et al.  Zero-voltage-switched quasi-resonant buck and flyback converters — Experimental results at 10 MHz1 , 1987, IEEE Power Electronics Specialists Conference.