Self-tuning digital current estimator for low-power...

Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...

Reexamination Certificate

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C323S286000, C323S299000

Reexamination Certificate

active

08085024

ABSTRACT:
A switched mode power can use a digital controller to control the switching of the at least one switch of the switched mode power supply. The current through the power inductor can be estimated using a self-tuning digital current estimator.

REFERENCES:
patent: 4315316 (1982-02-01), Boros et al.
patent: 5831837 (1998-11-01), Coyne et al.
patent: 5966042 (1999-10-01), Werner et al.
patent: 6031361 (2000-02-01), Burstein et al.
patent: 6225795 (2001-05-01), Stratakos et al.
patent: 7236920 (2007-06-01), Grochowski et al.
patent: 7288924 (2007-10-01), Trandafir et al.
patent: 7391195 (2008-06-01), Tiew et al.
patent: 7652459 (2010-01-01), Abu Qahouq et al.
patent: 7821237 (2010-10-01), Melanson
patent: 2006/0276915 (2006-12-01), Kelly
patent: 2007/0108953 (2007-05-01), Latham
patent: 2009/0039852 (2009-02-01), Fishelov et al.
patent: 2009/0267582 (2009-10-01), Prodic et al.
patent: 2010/0141230 (2010-06-01), Lukic et al.
Mattavelli, “Digital control of dc-dc boost converters with inductor current estimation”, Feb. 2004, IEEE, pp. 74-80.
Peng, et al., “Overload Protection in Digitally Controlled DC-DC Converters,” Proc. IEEE Power Electronics Specialist Conference, Jun. 2006, 6 pages.
Bibian et al., “High Performance Predictive Dead-Beat Digital Controller for DC Power Supplies,” IEEE Trans. Power Electron, 7 pages, May 2002. vol. 17.
Forghani-Zadeh, et al., “Current-Sensing Techniques for DC-DC Converters”, Proc. IEEE MWSCAS, Aug. 2002, pp. 577-580.
Givelin, et al., “On-Chip Over-Current and Open-Load Detection for a Power MOS High-Side Switch: a CMOS Current Source Approach”, Proc. European Conference Power Electronics and Applications, 1993, pp. 197-200.
Yuvarajan, et al., “Power Conversion And Control Using A Current-Sensing MOSFET”, Proc. Midwest Symposium Circuits and Systems (MWSCAS), 1992, pp. 166-169.
Chen, et al., “Integrated Current Sensing Circuits Suitable for Step-Down DC-DC Converters,” IEE Electronics Letters, Feb. 2004, pp. 200-201.
Lee, et al., “A Monolithic Current-Mode CMOS DC-DC Converter With On-Chip Current-Sensing Technique,” IEEE Journal Of Solid-State Circuits, Jan. 2004, pp. 3-14, vol. 39, No. 1.
Midya, et al., “Sensorless Current Mode Control—An Observer-Based Technique For Dc-Dc Converters,” In Proc. IEEE Power Electronics Specialist Conference, Jun. 1997, pp. 197-202.
Midya, et al., “Sensorless Current Mode Control—An Observer-Based Technique for DC-DC Converters,” IEEE Trans. Power Electronics, vol. 16, pp. 522-526, Jul. 2001.
Dallago, et al., “Lossless Current Sensing in Low-Voltage High-Current DC/DC Modular Supplies,” IEEE Trans. Ind. Electronics, Dec. 2000, pp. 1249-1252, vol. 47.
Hua, et al., “Design Considerations Of Time Constant Mismatch Problem For Inductor DCR Current Sensing Method,” Proc. IEEE Applied Power Electronics Conference, 2006, pp. 1368-1374.
Garcea et al., “Digital Auto-Tuning System For Inductor Current Sensing In VRM Applications,” In Proc. IEEE Applied Power Electronics Conference, 2006, pp. 493-498.
Forghani-Zadeh, et al., “An Accurate, Continuous, And Lossless Self-Learning CMOS Current-Sensing Scheme For Inductor-Based DC-DC Converters,” IEEE Journal Of Solid-State Circuits, Mar. 2007, pp. 665-679, vol. 42.
Leung et al., “Dynamic Hysteresis Band Control Of The Buck Converter With Fast Transient Response,” IEEE Transactions On Circuits And Systems—II: Express Briefs, Jul. 2005, pp. 398-402, vol. 52.
Lukic, et al., “Multibit Σ-Δ PWM Digital Controller IC for DC-DC Converters Operating at Switching Frequencies beyond 10 MHz”, IEEE Transactions on Power Electronics, Sep. 2007, pp. 1693-1707, vol. 22, No. 5.
Rahman, et al., “Multimode Digital SMPS Controller IC for Low-Power Management”, ISCAS 2006, pp. 5327-5330.
Xiao, et al., “A 4-μA Quiescent-Current Dual-Mode Digitally Controlled Buck Converter IC for Cellular Phone Applications”, IEEE Journal of Solid-State Circuits, Dec. 2004, pp. 2342-2348.
Zhao, et al., “Continuous-Time Digital Controller for High-Frequency DC-DC Converters”, 2007, IEEE Applied Power Electronics Conference 2007, 26 pages.
International Search Report and Written Opinion, Jun. 7, 2009, 11 pages.

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