Modeling and Simulation of PSM DC-DC Buck Converter

A DC-to-DC converter for applications involving a source with widely varying voltage conditions with loads requiring constant voltage from full load down to no load is presented. The switching regulator considered is a Buck converter with Pulse Skipping Modulation control whereby pulses applied to the switch are blocked or released on output voltage crossing a predetermined value. Results of the study on the performance of regulator circuit are presented. The regulator regulates over a wide input voltage range with slightly higher ripple content and good transient response. Input current spectrum indicates a good EMI performance with crowding of components at low frequency range.




References:
[1] Erickson, R. W., Maksimovic, D., Fundamentals of Power Electronics,
Kluwer Academic Publishers, 2nd Edition, ISBN 0-7923-7270-0.
[2] A.J. Forsyth and S.V. Mollow, "Modelling and control of DC- DC
converters," IEE Power Engineering Journal, vol. 12 no. 5, pp. 229-236,
Oct 1998.
[3] J.G. Kassakian, M.F. Schlecht, and G.C. Verghese, -Principles of Power
Electronics-. Reading, Mass.: Addison-Wesley, June 1992.
[4] B. Arbetter, R. Erickson, and D.Maksimovic, "DC-DC converter design
for battery-operated systems," IEEE PESC -95. Vol. 1, pp. 103-109. Jun
1995.
[5] A. J. Stratakos, S. R. Sanders, and R. W. Broderson, "A low-voltage
CMOS dc-dc converter for a portable battery-operated system," in Proc.
Power Electronics Specialists Conf., vol. 1, June 1994, pp. 619-626.
[6] G.Y. Wei and M. Horowitz, "A fully digital, energy-efficient adaptive
power-supply regulator," IEEE J. Solid-State Circuits, vol. 35, pp. 520-
528, Apr. 2000.
[7] A. P. Dancy, R. Amirtharajah, and A. P. Chandrakasan, "High-efficiency
multiple-output dc-dc conversion for low-voltage systems," IEEE Trans.
VLSI, vol. 8, pp. 252-263, June 2000.
[8] Angel V.Peterchev, Seth R.Sanders, "Digital Loss -Minimizing Multi-
Mode Synchronous Buck Converter Control"35th Annual IEEE Power
Electronics Specialists Conference, pp.3694-3699
[9] S. Pattnaik, A. K. Panda, Aroul K., K. K. Mahapatra, "A Novel Zero Voltage
Transition Synchronous Buck Converter for Portable Application,"
International Journal of Electrical, Computer, and Systems Engineering,
Volume 2 Number 2 pp. 115-120 Spring 2008.
[10] A. Consoli, F. Gennaro, C. Cavallaro, and A. Testa, "A comparative
study of different buck topologies for high-efficiency low-voltage applications,"
in Proc. Power Elect. Spec. Conf., 1999, pp. 60-65.
[11] Calafut, D., "Trench power MOSFET lowside switch with optimized
integrated Schottky diode," Proceedings of The 16th International Symposium
on Power Semiconductor Devices and ICs, 2004. ISPSD -04.,
vol., no., pp. 397-400, 24-27 May 2004.
[12] K.M.Smith and K.M.Smedly, "A comparison of voltage-mode soft
switching methods for PWM converters," IEEE Trans. Power Electron.,
vol.12, no.2, pp.376-386, Mar.1997.
[13] Xunwei Zhou, Mauro Donati, Luca Amoroso, and Fred C. Lee,"
Improved Light-Load Efficiency for Synchronous Rectifier Voltage Regulator
Module," IEEE Transactions On Power Electronics, Vol. 15, No.
5, pp.826-834, September 2000
[14] Chi-Lin Chen Wei-Lun Hsieh Wei-Jen Lai Ke-Horng Chen and Ching-
Sung Wang," A new PWM/PFM control technique for improving efficiency
over wide load range, " 15th IEEE International Conference on
Electronics, Circuits and Systems, 2008 pp 962-965.
[15] Luo P,Luo L Y, Li Z J et al,"Skip Cycle Modulation in Switching DCDC
Converter", ICCCAS, Chengdu, China,June, 2002, 1716-1719.
[16] F. Lin, D.Y. Chen, "Reduction of Power Supply EMI Emission by
Switching Frequency Modulation", IEEE Trans. On Power Electronics,
Vol.9, Issue 1, pp. 132-137 Jan. 1994.