A fast-transient quasi-V\bf 2 switching buck regulator using AOT control with a load current correction (LCC) technique

IEEE Transactions on Power Electronics

Volumn 28, Issue 8, 2013, Pages 3949-3957

  Tsai, Chien Hung ^a   Lin, Shih Mei ^a   Huang, Chun Sheng ^a  

^a NATIONAL CHENG KUNG UNIVERSITY   (Taiwan)

Author keywords

Adaptive on time (AOT) control; Fast transient response; Switching regulator

Indexed keywords

BUCK REGULATORS; CONTINUOUS CONDUCTION MODE; EQUIVALENT SERIES RESISTANCE; FAST TRANSIENT RESPONSE; FEED-FORWARD; LOAD CURRENTS; MEASUREMENT RESULTS; OUTPUT CAPACITOR; OUTPUT VOLTAGES; RECOVERY TIME; STABLE OPERATION; SUPPLY VOLTAGES; SWITCHING REGULATOR; VOLTAGE DROP;

ELECTRIC RESISTANCE;

CONVERSION EFFICIENCY;

EID: 84872980592     PISSN: 08858993     EISSN: None     Source Type: Journal    
DOI: 10.1109/TPEL.2012.2230649     Document Type: Article

References (32)

1. Y. Choi, N. Chang, and T. Kim, "DC-DC converter-aware power management for low-power embedded systems," IEEE Trans. Comput.-Aided Design Integr. Circuits Syst., vol. 26, no. 8, pp. 1367-1381, Aug. 2007. (Pubitemid 47117370)
2. P. Li, D. Bhatia, X. Lin, and R. Bashirullah, "A 90-240 MHz hysteretic controlled DC-DC buck converter with digital phase locked loop synchronization," IEEE J. Solid-State Circuits, vol. 46, no. 9, pp. 2108-2119, Sep. 2011.
3. H. H. Huang, C. L. Chen, and K. H. Chen, "Adaptive window control (AWC) technique for hysteresis DC-DC buck converters with improved light and heavy load performance," IEEE Trans. Power Electron., vol. 24, no. 6, pp. 1607-1617, Jun. 2009.
4. F. Su andW. H. Ki, "Digitally assisted Quasi-V2 hysteretic buck converter with fixed frequency and without using large-ESR capacitor," in Proc. IEEE Int. Solid-State Circuits Conf., Feb. 2009, pp. 446-447.
5. J. J. Chen, "An active current-sensing constant-frequency HCC buck converter using phase-frequency-locked techniques," IEEE Trans. Ultrason. Ferroelectr. Freq. Control, vol. 55, no. 4, pp. 761-769, Apr. 2008.
6. J. J. Chen, F. C. Yang, and C. C. Chen, "A new monolithic fast-response buck converter using spike-reduction current-sensing circuits," IEEE Trans. Ind. Electron., vol. 55, no. 3, pp. 1101-1111, Mar. 2008.
7. F. Su, W. H. Ki, and C. Y. Tsui, "Ultra fast fixed-frequency hysteretic buck converter with maximum charging current control and adaptive delay compensation forDVS applications," IEEE J. Solid-State Circuits, vol. 43, no. 4, pp. 815-822, Apr. 2008. (Pubitemid 351464074)
8. C. H. Tso and J. C.Wu, "A ripple control buck regulator with fixed output frequency," IEEE Power Electron. Lett., vol. 1, no. 3, pp. 61-63, Sep. 2003.
9. L. Wang, Y. Pei, X. Yang, Y. Qin, and Z. Wang, "Improving light and intermediate load efficiencies of buck converters with planar nonlinear inductors and variable on time control," IEEE Trans. Power Electron., vol. 27, no. 1, pp. 342-353, Jan. 2012.
10. Y.-H. Lee,W.-W. Lai,W.-Y. Pai, K.-H. Chen, M.-J. Du, and S.-H. Cheng, "Reduction of equivalent series inductor effect in constant on-time control DC-DC converter without ESR compensation," in Proc. IEEE Int. Symp. Circuits Syst., May 2011, pp. 753-756.
11. Y. C. Lin, C. J. Chen, D. Chen, and B. Wang, "A ripple-based constant on-time control with virtual inductor current and offset cancellation for DC power converters," IEEE Trans. Power Electron., vol. 27, no. 10, pp. 4301-4310, Oct. 2012.
12. C. S. Huang, C. Y. Wang, J. H. Wang, and C. H. Tsai, "A fast-transient quasi-V2 switching buck regulator using AOT control," in Proc. IEEE Asian Solid-State Circuits Conf., Nov. 2011, pp. 53-56.
13. R. Redl and J. Sun, "Ripple-based control of switching regulator - An overview," IEEE Trans. Power Electron., vol. 24, no. 12, pp. 2669-2680, Dec. 2009.
14. J. Fan, X. Li, J. Park, and A. Huang, "A monolithic buck converter using differentially enhanced duty ripple control," in Proc. IEEE Custom Integr. Circuits Conf., Sep. 2009, pp. 527-530.
15. X. Zhou, J. Fan, and A. Huang, "Monolithic DC offset self-calibration method for adaptive on-time control buck converter," in Proc. IEEE Energy Convers. Congr. Expo., Sep. 2009, pp. 655-658.
16. H. C. Lin, B. C. Fung, and T. Y. Chang, "A current mode adaptive on-time control scheme for fast transient DC-DC converters," in Proc. IEEE Int. Symp. Circuits Syst., May 2008, pp. 2602-2605.
17. MIC2164/-2/-3/C data sheet: Constant frequency, synchronous buck controllers featuring adaptive on-time control, Micrel, San Jose, CA, Feb. 2010.
18. LM2696 data sheet: 3A, constant on time buck regulator, National Semiconductor, Santa Clara, CA, May 2009.
19. L.-K. Wong and T.-K. Man, "Adaptive on-time control for swiching regulators," U.S. Patent 7 782 036, Aug. 24, 2010.
20. I. Stoichita, M. Weng, and C. Vinn, "Constant on-time regulator with internal ripple generation and improved output voltage accuracy," U.S. Patent 7 482 791, Jan. 27, 2009.
21. P. Y. Wu and P. K. T. Mok, "A monolithic buck converter with nearoptimum reference tracking response using adaptive-output-feedback," IEEE J. Solid-State Circuits, vol. 42, no. 11, pp. 2441-2450, Nov. 2007.
22. Y. Y. Mai and P. K. T Mok, "A constant frequency output-ripple-voltagebased buck converter without using large ESR capacitor," IEEE Trans. Circuits Syst. II, Exp. Briefs, vol. 55, no. 8, pp. 748-752, Aug. 2008.
23. Y. H. Lee, S. J. Wang, and K. H. Chen, "Quadratic differential and integration technique in V2 control buck converter with small ESR capacitor," IEEE Trans. Power Electron., vol. 25, no. 4, pp. 829-838, Apr. 2010.
24. J. Li and F. C. Lee, "New modeling approach and equivalent circuit representation for current-mode control," IEEE Trans. Power Electron., vol. 25, no. 5, pp. 1218-1230, May 2010.
25. Y. Zheng, H. Chen, and K. N. Leung, "A fast-response Pseudo-PWM buck converter with PLL-based hysteresis control," IEEE Trans. Very Large Scale Integration (VLSI) Syst., vol. 20, no. 7, pp. 1167-1174, Jul. 2012.
26. P. Li, X. Lin, P. Hazucha, T. Karnik, and R. Bashirullah, "A delaylocked loop synchronization scheme for high-frequency multiphase hysteretic DC-DC converters," IEEE J. Solid-State Circuits, vol. 44, no. 11, pp. 3131-3145, Nov. 2009.
27. C. Song, "Accuracy analysis of constant-on current-mode DC-DC converters for powering microprocessors," in Proc. IEEE Appl. Power Electron. Conf., Feb. 2009, pp. 97-101.
28. U. Sengupta,"PWM and PFM operation ofDC/DC converters for portable applications," in 2006 TI Portable Power Design Seminar, Topics 7, TI Literature No. SLPT015.
29. D. S. Ma, W. H. Ki, C. Y. Tsui, and P. K. T. Mok, "Single-inductor multiple-output switching converters with time-multiplexing control in discontinuous conduction mode," IEEE J. Solid-State Circuits, vol. 38, no. 1, pp. 89-100, Jan. 2003.
30. J. W. Fan, X. N. Li, S. K. Lim, and A. Q. Huang, "Design and characterization of differentially enhanced duty ripple control (DE-DRC) for stepdown converter," IEEE Trans. Power Electron., vol. 24, no. 12, pp. 2714- 2725, Dec. 2009.
31. K. H. Chen, C. J. Chang, and T. H. Liu, "Bidirectional current-mode capacitor multipliers for on-chip compensation," IEEE Trans. Power Electron., vol. 23, no. 1, pp. 180-188, Jan. 2008.
32. F. F. Ma, W. Z. Chen, and J. C. Wu, "A monolithic current-mode buck converter with advanced control and protection circuits," IEEE Trans. Power Electron., vol. 22, no. 5, pp. 1836-1846, Sep. 2007.