Digital hybrid ripple-based constant on-time control for voltage regulator modules

Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Volumn , Issue , 2011, Pages 346-353

  Cheng, Kuang Yao ^a   Yu, Feng ^a   Tian, Shuilin ^a   Lee, Fred C ^a   Mattavelli, Paolo ^a  

^a VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY   (United States)

Author keywords

adaptive voltage positioning (AVP); buck converter; digital control; Ripple based control; voltage regulator module (VRM)

Indexed keywords

ADAPTIVE VOLTAGE; BUCK CONVERTER; DIGITAL CONTROL; RIPPLE-BASED CONTROL; VOLTAGE REGULATOR MODULE (VRM);

ANALOG TO DIGITAL CONVERSION; CAPACITORS; DIGITAL CONTROL SYSTEMS; ELECTRIC IMPEDANCE; ELECTRIC POTENTIAL; ELECTRIC RECTIFIERS; HETEROJUNCTION BIPOLAR TRANSISTORS; POWER ELECTRONICS; VOLTAGE CONTROL;

VOLTAGE REGULATORS;

EID: 79955758774     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1109/APEC.2011.5744619     Document Type: Conference Paper

References (22)

1. K. Yao, Y. Ren, and F. C. Lee, "Critical bandwidth for the load transient response of voltage regulator modules," IEEE Trans. Power Electron., vol. 19, no. 6, pp. 1454-1461, Nov. 2004.
2. Intel MVP 6.5 Mobile Processor and Mobile Chipset, Intel Corporation, 2009.
3. Voltage Regulator Module (VRM) Design Guidelines 11.0, Intel Corporation, 2008.
4. R. Redl and J. Sun, "Ripple-based control of switching regulators - an overview," IEEE Trans. Power Electron., vol. 24, no. 12, pp. 2669-2680, Dec. 2009.
5. "Single phase D-CAP+ mode step down controller for IMVP6+ Vcore TPS51610 datasheet," Texas Instruments document.
6. "Single phase quick-PWM Intel IMVP-6.5/GMCH controllers MAX17528 datasheet," Maxim document.
7. "Single-phase core regulator for IMVP-6 mobile CPUs ISL6261 datasheet," Intersil document.
8. J. Sun, "Characterization and performance comparison of ripple-based control for voltage regulator modules," IEEE Trans. Power Electron., vol. 21, no. 2, pp. 346-353, Mar. 2006.
9. J. Li and F. C. Lee, "Modeling of V2 current-mode control," IEEE Trans. Circuit and Systems: Part I, vol. 57, no. 9, pp. 2552-2563, Sept. 2010
10. W. Huang, "A new control for multi-phase buck converter with fast transient," in Proc. IEEE APEC'01 Conf., 2001, pp. 273-279.
11. K. Yao, M. Xu, Y. Meng, and F. C. Lee, "Design considerations for VRM transient response based on the output impedance," IEEE Trans. Power Electron., vol. 18, no. 6, pp. 1270-1277, Nov. 2003.
12. M. Lee, D. Chen, K. Huang, C. W. Liu, and B. Tai, "Modeling and design for a novel adaptive voltage positioning (AVP) scheme for multiphase VRMs," IEEE Trans. Power Electron., vol. 23, no. 4, pp. 1733-1742, Jul. 2008.
13. K. Lee, K. Yao, X. Zhang, Y. Qiu, and F. C. Lee, "A novel control method for multiphase voltage regulators," in Proc. IEEE APEC'03 Conf., 2003, pp. 738-743.
14. Y. F. Liu, E. Meyer, and X. D. Liu, "Recent developments in digital control strategies for DC/DC switching power converters," IEEE Trans. Power Electron., vol. 24, no. 11, pp. 2567-2577, Nov. 2009.
15. L. Corradini, A. Costabeber, P. Mattavelli, and S. Saggini, "Parameter-independent time-optimal digital control for point-of-load converters," IEEE Trans. Power Electron., vol. 24, no. 10, pp. 2235-2248, Oct. 2009.
16. "Digital multiphase buck controller CHL8100 datasheet," Chil Semiconductor document.
17. "Digital multiphase controller for VR 10.x PL3535 datasheet," Infineon document.
18. 2-type constant on-time control for buck converters," in Proc. IEEE COMPEL Conf., 2010.
19. K. Y. Cheng, F. Yu, P. Mattavelli, and F. C. Lee, "Digital enhanced V2-type constant on-time control using inductor current ramp estimator for a buck converter with small ESR capacitors ," in Proc. IEEE ECCE Conf., 2010.
20. Z. Lukic, Z. Zhao, S. M. Ahsanuzzaman, and A. Prodic, "Self-tuning digital current estimator for low-power switching converters," in Proc. IEEE APEC'08 Conf., 2008, pp. 529-534.
21. Y. Ren, K. Yao, M. Xu, and F. C. Lee, "Analysis of the power delivery path from the 12-V VR to the microprocessor," IEEE Trans. Power Electron., vol. 19, no. 6, pp. 1507-1514, Nov. 2004.
22. 2 control for buck converters," U.S. Patent, 2010. (pending)