Small-signal Discrete-time Modeling of Digitally Controlled DC-DC Converters

The paper presents an exact small-signal discrete-time model for digitally controlled DC-DC converters. The model, which is based on well-known approaches to discrete-time modeling and the standard Z-transform, takes into account modulator effects and delays in the control loop. The model is well suited for direct digital design of digital compensators

[1]  R.D. Middlebrook,et al.  Sampled-data modeling of switching regulators , 1981, 1981 IEEE Power Electronics Specialists Conference.

[2]  Yuan Yu,et al.  Generalized Computer-Aided Discrete Time-Domain Modeling and Analysis of DC-DC Converters , 1979, IEEE Transactions on Industrial Electronics and Control Instrumentation.

[3]  Jan Melkebeek,et al.  Small-Signal $z$ -Domain Analysis of Digitally Controlled Converters , 2006 .

[4]  Eyad H. Abed,et al.  Output regulation of DC-DC switching converters using discrete-time integral control , 1999, Proceedings of the 1999 American Control Conference (Cat. No. 99CH36251).

[5]  Sam Ben-Yaakov,et al.  Low-frequency sampled-data models of switched mode DC-DC converters , 1989 .

[6]  Dragan Maksimovic,et al.  Minimum Phase Response in Digitally Controlled Boost and Flyback Converters , 2007, APEC 07 - Twenty-Second Annual IEEE Applied Power Electronics Conference and Exposition.

[7]  Malik E. Elbuluk,et al.  A General Approach to Sampled-Data Modeling for Power Electronic Circuits , 1986, IEEE Transactions on Power Electronics.

[8]  Jian Sun,et al.  Delay effects in averaged modeling of PWM converters , 1999, 30th Annual IEEE Power Electronics Specialists Conference. Record. (Cat. No.99CH36321).

[9]  J.A. Melkebeek,et al.  Small-Signal$z$-Domain Analysis of Digitally Controlled Converters , 2004, IEEE Transactions on Power Electronics.

[10]  R. Middlebrook,et al.  Small-Signal Frequency Response Theory for piecewise-constant two-switched-network dc-to-dc converter systems , 1986, 1986 17th Annual IEEE Power Electronics Specialists Conference.

[11]  P. Maranesi.  Small-signal circuit modeling in the frequency-domain by computer-aided time-domain simulation , 1992 .

[12]  D. Maksimovic,et al.  System identification of power converters with digital control through cross-correlation methods , 2005, IEEE Transactions on Power Electronics.

[13]  G. Verghese,et al.  Extended averaging and control procedures , 1981, 1981 IEEE Power Electronics Specialists Conference.

[14]  Paolo Mattavelli,et al.  Analysis of Multiple Sampling Technique for Digitally Controlled dc-dc Converters , 2006 .

[15]  Haitao Hu,et al.  Nonlinear Control for Improved Dynamic Response of Digitally Controlled DC-DC Converters , 2006 .

[16]  B. S. Heck,et al.  Bilinear discrete-time modeling for enhanced stability prediction and digital control design , 2003 .

[17]  D. Packard.  Discrete modeling and analysis of switching regulators , 1976 .

[18]  D. Maksimovic,et al.  Digitally controlled 10 MHz monolithic buck converter , 2006, 2006 IEEE Workshops on Computers in Power Electronics.