Apparatus and method for valley emulated current mode control

Details Apparatus and method for valley emulated current mode control Apparatus and method for valley emulated current mode control

2011-05-03

2011-05-03

Behm, Harry (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C323S222000, C323S288000

Reexamination Certificate

active

07936160

ABSTRACT:
A valley current mode switching regulator is provided. When the main switch of the switching regulator is closed, the current through the main switch is sensed and sampled. The sensed main switch current is held while the main switch is off. While the main switch is off, the inductor current is emulated. Emulated valley current mode control is provided based on the sensed main switch current and the emulated flywheel current.

REFERENCES:
patent: 5428267 (1995-06-01), Peil
patent: 5903452 (1999-05-01), Yang et al.
patent: 6166528 (2000-12-01), Rossetti et al.
patent: 6246220 (2001-06-01), Isham et al.
patent: 6377032 (2002-04-01), Andruzzi et al.
patent: 6396252 (2002-05-01), Culpepper et al.
patent: 6476589 (2002-11-01), Umminger et al.
patent: 6559684 (2003-05-01), Goodfellow et al.
patent: 6879136 (2005-04-01), Erisman et al.
patent: 6930474 (2005-08-01), Wang et al.
patent: 6952093 (2005-10-01), Broach et al.
patent: 6969976 (2005-11-01), Broach et al.
patent: RE38940 (2006-01-01), Isham et al.
patent: 7042207 (2006-05-01), Broach
patent: 7045993 (2006-05-01), Tomiyoshi
patent: 7119522 (2006-10-01), Tomiyoshi et al.
patent: 7135841 (2006-11-01), Tomiyoshi et al.
patent: 7148669 (2006-12-01), Maksimovic et al.
patent: 7391199 (2008-06-01), Akashi et al.
patent: 7425819 (2008-09-01), Isobe
patent: 2005/0219926 (2005-10-01), Tai et al.
Linear Technology Data Sheet (1999) “LTC 1707-High Efficiency Monolithic Synchronous Step-Down Switching Regulator,” Linear Technology Corporation, pp. 1-16.
Maxim Data Sheet (2001) “MAX1684/MAX1685-Low-Noise, 14V Input, 1A, PWM Step-Down Converters,” Maxim Integrated Products, pp. 1-14.
Robert W. Erickson and Dragan Maksimovic, Editors, Fundamentals of Power Electronics, 2.sup.nd Edition, 2001, pp. 439-487, 654-657, 834-839.
Pressman, Abraham I. et al., “Switching Power Supply Design”, 1998, pp. 143-165.
Ridley, Raymond, “A New Continuous Time Model for Current-Mode Control,” IEEE Transaction on Power Electronics, vol. 6, No. 2, Apr. 1991, pp. 271-280.
Sheehan, Robert, “Emulated Current Mode Control for Buck Regulators Using Sample and Hold Technique,” Power Electronics Technology Exhibition and Conference, Oct. 24-26, 2006, 48 pgs.
Babu, C. Sudhakar et al., “Predictive Valley Current Controller for Two Inductor Buck Converter,” Department of Electrical Engineering, 4 pgs.
Shanker, P. et al., “A New Current Programming Technique Using Predictive Control,” Department of Electrical & Computer Engineering, 1994, pp. 428-434.
“LM5116: Wide Range Synchronous Buck Controller,” National Semiconductor Corporation, Feb. 2007, 26 pgs.
Bryant, Brad et al., “Modeling the Closed-Current Loop of PWM Boost DC-DC Converters Operating in CCM with Peak Current-Mode Control,” IEEE Transactions on Circuits and Systems, Nov. 2005, vol. 52, No. 11, pp. 2404-2412.
Chattopadhyay, Souvik et al., “A Digital Current Mode Control Technique for DC-DC Converters,” Power Electronics and Drives Group Department of Electrical Engineering, 2005, pp. 885-891.
Nishida, Yasuyuki et al., “A Predictive Instantaneous-Current PWM Controlled Rectifier with AC-Side Harmonic Current Reduction,” IEEE Transactions on Industrial Electronics, vol. 44, No. 3, Jun. 1997, pp. 337-343.
Chen, Jingquan et al., “Predictive Digital Current Programmed Control,” IEEE Transactions on Power Electronics, vol. 18, No. 1, Jan. 2003, pp. 411-419.
Babu, C. Sudhakar et al., “Predictive Controller for Interleaved Boost Converter,” IEEE ISIE, Jun. 20-23, 2005, pp. 577-582.

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