Predictive Digital-Controlled Converter With Peak Current-Mode Control and Leading-Edge Modulation

The main theme of this paper is to present the digital controller design of a power converter with predictive peak current-mode (PCM) control and leading-edge modulation. The advantages of the control and modulation technique include the reduction of the sampling frequency of the A/D converter, no need of slope compensation, and the provision of a fast dynamic current response. The discrete-time model of the converter is presented as the fundamental to digital controller design and followed by the digital controller design. Moreover, the effect of predictive PCM control with leading edge modulation on limit cycle is analyzed. It is known that the limit cycle can be effectively suppressed as the converter has a predictive PCM control and leading edge modulation. Experimental results will be included to support fully the theoretical analysis.

[1]  Gene F. Franklin,et al.  Digital control of dynamic systems , 1980 .

[2]  P. Bélanger,et al.  Limit Cycles in Fixed-Point Implementation of Control Algorithms , 1984, IEEE Transactions on Industrial Electronics.

[3]  Milan M. Jovanovic,et al.  Design considerations for low-voltage on-board DC/DC modules for next generations of data processing circuits , 1996 .

[4]  Stéphane Bibian,et al.  High performance predictive dead-beat digital controller for DC power supplies , 2001, APEC 2001. Sixteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.01CH37181).

[5]  Teuvo Suntio,et al.  Analysis and modeling of peak-current-mode-controlled buck converter in DICM , 2001, IEEE Trans. Ind. Electron..

[6]  Aleksandar Prodic,et al.  Design and implementation of a digital PWM controller for a high-frequency switching DC-DC power converter , 2001, IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243).

[7]  Aleksandar Prodic,et al.  Predictive digital current programmed control , 2003 .

[8]  Seth R. Sanders,et al.  Quantization resolution and limit cycling in digitally controlled PWM converters , 2003 .

[9]  D. Maksimovic,et al.  Variable-frequency predictive digital current mode control , 2004, IEEE Power Electronics Letters.

[10]  S. Saggini,et al.  An innovative digital control architecture for low-Voltage, high-current DC-DC converters with tight voltage regulation , 2004, IEEE Transactions on Power Electronics.

[11]  D. Maksimovic,et al.  A digital current mode control technique for DC-DC converters , 2005, Twentieth Annual IEEE Applied Power Electronics Conference and Exposition, 2005. APEC 2005..

[12]  D. Maksimovic,et al.  Digital current-mode controller for DC-DC converters , 2005, Twentieth Annual IEEE Applied Power Electronics Conference and Exposition, 2005. APEC 2005..

[13]  P. Mattavelli,et al.  Prediction of limit-cycles oscillations in digitally controlled DC-DC converters using statistical approach , 2005, 31st Annual Conference of IEEE Industrial Electronics Society, 2005. IECON 2005..

[14]  S. Saggini,et al.  Predictive Digital Control for Voltage Regulation Module Applications , 2005, 2005 International Conference on Power Electronics and Drives Systems.

[15]  S. Chattopadhyay,et al.  A Digital Current-Mode Control Technique for DC–DC Converters , 2006, IEEE Transactions on Power Electronics.

[16]  S. Saggini,et al.  High-performance synchronous-asynchronous digital voltage-mode control for dc-dc converters , 2006, Twenty-First Annual IEEE Applied Power Electronics Conference and Exposition, 2006. APEC '06..

[17]  Jianping Xu,et al.  Digital Predictive V2 Control of Switching DC-DC Converters , 2006, 2006 IEEE International Conference on Industrial Technology.

[18]  S. Chattopadhyay,et al.  Analysis of limit cycle oscillations in digital current-mode control , 2006, Twenty-First Annual IEEE Applied Power Electronics Conference and Exposition, 2006. APEC '06..

[19]  S.S. Ang,et al.  Digital control of a voltage-mode synchronous buck converter , 2006, IEEE Transactions on Power Electronics.

[20]  Yan-Fei Liu,et al.  A Design Method for PI-like Fuzzy Logic Controllers for DC–DC Converter , 2007, IEEE Transactions on Industrial Electronics.

[21]  Chih-Ching Wang,et al.  Modeling of Digitally-Controlled Voltage-Mode DC-DC Converters , 2007, IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society.

[22]  L. Martinez-Salamero,et al.  Predictive Digital Sliding-Mode Current Control , 2007, 2007 IEEE International Symposium on Industrial Electronics.

[23]  Yen-Shin Lai,et al.  New Self-Commissioning Digital Power Converter with Peak Current Mode Control and Leading Edge Modulation Using Low Sampling Frequency A/D Converter , 2007, 2007 IEEE Industry Applications Annual Meeting.

[24]  Guohua Zhou,et al.  Analysis of Improved Digital Peak Voltage Control Buck Converter with Different DPWM Modulations , 2007, 2007 IEEE International Symposium on Industrial Electronics.

[25]  Jianping Xu,et al.  Comparison Study of Buck Converter with Digital Peak Voltage and Digital Peak Current Control , 2007, 2007 IEEE International Symposium on Industrial Electronics.