Current share in multiphase DC-DC converters using digital filtering techniques

IEEE Transactions on Power Electronics

Volumn 24, Issue 1, 2009, Pages 212-220

  Kelly, Anthony ^a  

^a Powervation Ltd   (Ireland)

Author keywords

Current balance; Dc dc converters; Digital control; Multiphase

Indexed keywords

CONTROL SYSTEM STABILITY; DIGITAL CONTROL SYSTEMS; DIGITAL FILTERS; ELECTRIC CURRENT MEASUREMENT; ELECTRIC INVERTERS;

CONTROL PATHS; CURRENT BALANCE; CURRENT MEASUREMENTS; CURRENT SHARES; DIGITAL CONTROL; DIGITAL CONTROLLERS; DIGITAL FILTERING TECHNIQUES; DUTY CYCLES; EXPERIMENTAL VALIDATIONS; MATCHING PRINCIPLES; MULTIPHASE; SENSOR-LESS; SIMPLE MODIFICATIONS; VERY LOW COMPLEXITY; VOLTAGE-MODE CONTROLS;

DC-DC CONVERTERS;

EID: 61649099028     PISSN: 08858993     EISSN: None     Source Type: Journal    
DOI: 10.1109/TPEL.2008.2006752     Document Type: Article

References (16)

1. J. A. A. Qahouq, M. Hong, and I. Batarseh, "Novel control method for multiphase low-voltage high-current fast-transient VRMs," in Proc. IEEE Power Electron. Spec. Conf., 2002, pp. 1576-1581.
2. Y. Panov and M. M. Jovanovic, "Stability and dynamic performance of current-sharing control for paralleled voltage regulator modules," in Proc. IEEE Appl. Power Electron. Conf., 2001, pp. 765-771.
3. J. A. A. Qahouq, L. Huang, D. Huard, and A. Hallberg, "Novel current sharing schemes for multiphase converters with digital controller implementation," in Proc. Appl. Power Electron. Conf., 2007, pp. 148-156.
4. S. Juanjuan, Q. Yang, X. Ming, and F. C. Lee, "Dynamic current sharing analyses for multiphase buck VRs," in Proc. IEEE Appl. Power Electron. Conf., 2006, pp. 31-37.
5. H. P. Forghani-Zadeh and G. A. Rincon-Mora, "Current-sensing techniques for DC-DC converters," in Proc. 45th IEEE Midwest Symp. Circuits Syst., 2002, pp. II-577-II-580.
6. Z. Yang, R. Zane, A. Prodic, R. Erickson, and D. Maksimovic, "Online calibration of MOSFET on-state resistance for precise current sensing," IEEE Power Electron. Lett., vol. 2, no. 3, pp. 100-103, Sep. 2004.
7. P. Andreassen and T. M. Undeland, "Digital control techniques for current mode control of interleaved quasi square wave converter," in Proc. Power Electron. Spec. Conf., 2005, pp. 910-915.
8. R. F. Foley, R. C. Kavanagh,W. P. Marnane, and M. G. Egan, "Sensorless current-sharing in multiphase power converters," in Proc. IEEE Workshop Comput. Power Electron., 2006, pp. 117-122.
9. A. V. Peterchev, J. Xiao, and S. R. Sanders, "Architecture and IC implementation of a digital VRM controller," IEEE Trans. Power Electron., vol. 18, no. 1, pp. 356-364, Jan. 2003.
10. Y. Panov and M. M. Jovanovic, "Design considerations for 12-V/1.5-V, 50-A voltage regulator modules," IEEE Trans. Power Electron., vol. 16, no. 6, pp. 776-783, Nov. 2001.
11. A. Kelly and K. Rinne, "Sensorless current-mode control of a digital dead-beat DC-DC converter," in Proc. Appl. Power Electron. Conf. Expo., 2004, pp. 1790-1795.
12. O. Garcia, A. de Castro, P. Zumelis, and J. A. Cobos, "Digital-control-based solution to the effect of nonidealities of the inductors in multiphase converters," IEEE Trans. Power Electron., vol. 22, no. 6, pp. 2155-2163, Nov. 2007.
13. J. A. A. Qahouq, H. Lilly, and D. Huard, "Sensorless current sharing analysis and scheme for multiphase converters," in Proc. IEEE Power Electron. Spec. Conf. (PESC 2007), pp. 2029-2036.
14. Y. Huang and C. K. Tse, "Circuit theoretic classification of parallel connected DC-DC converters," IEEE Trans. Circuits Syst. I, Reg. Papers, vol. 54, no. 5, pp. 1099-1108, May 2007.
15. G. Eirea, G. Eirea, and S. R. Sanders, "Phase current unbalance estimation in multiphase buck converters," IEEE Trans. Power Electron., vol. 23, no. 1, pp. 137-143, Jan. 2008.
16. M. Hong, Y. Liangbin, W. Caisheng, and I. Batarseh, "Analysis of inductor current sharing in nonisolated and isolated multiphase dc-dc converters," IEEE Trans. Ind. Electron., vol. 54, no. 6, pp. 3379-3388, Dec. 2007.