Generic average modeling and simulation of the static and dynamic behavior of Switched Capacitor Converters

A generic behavioral average circuit model of a Switched Capacitor Converter (SCC) is proposed and verified. The model is based on the average currents concept and assumes that each of the SCC subcircuits can be described or approximated as a first order network. The model can be used to calculate or simulate the average static, dynamic and small signal responses of the SCC. The model is valid for all operational modes of a SCC (complete, partial and no charge) and is compatible with any circuit simulator that includes dependent sources. Excellent agreement was found between the behavior of the proposed average model, full circuit simulation, and experimental results.

[1]  Yie-Tone Chen,et al.  The Switched-Capacitor step-down DC-DC converter with improved voltage stability and load range , 2010, 2010 5th IEEE Conference on Industrial Electronics and Applications.

[2]  Sam Ben-Yaakov,et al.  Analysis and implementation of output voltage regulation in multi-phase switched capacitor converters , 2011, 2011 IEEE Energy Conversion Congress and Exposition.

[3]  S. Ben-Yaakov.  SPICE simulation of PWM DC-DC convertor systems: voltage feedback, continuous inductor conduction mode , 1989 .

[4]  Henry Shu-Hung Chung,et al.  Development of a switched-capacitor DC-DC converter with bidirectional power flow , 2000 .

[5]  Gabor C. Temes,et al.  An Efficient and Accurate DC Analysis Technique for Switched-Capacitor Circuits , 2002 .

[6]  R. M. Bass,et al.  Analysis of charge pumps using charge balance , 2000, 2000 IEEE 31st Annual Power Electronics Specialists Conference. Conference Proceedings (Cat. No.00CH37018).

[7]  A. Ioinovici,et al.  Switched-capacitor power electronics circuits , 2001 .

[8]  M. S. Makowski,et al.  Performance limits of switched-capacitor DC-DC converters , 1995, Proceedings of PESC '95 - Power Electronics Specialist Conference.

[9]  F. Ueno,et al.  A general method for deriving output resistances of serial fixed type switched-capacitor power supplies , 2000, 2000 IEEE International Symposium on Circuits and Systems. Emerging Technologies for the 21st Century. Proceedings (IEEE Cat No.00CH36353).

[10]  Sam Ben-Yaakov.  Average simulation of PWM converters by direct implementation of behavioural relationships , 1994 .

[11]  Shmuel Ben-Yaakov.  On the Influence of Switch Resistances on Switched-Capacitor Converter Losses , 2012, IEEE Transactions on Industrial Electronics.

[12]  V. Vorperian.  Simplified analysis of PWM converters using model of PWM switch. II. Discontinuous conduction mode , 1990 .

[13]  Ka Wai Eric Cheng,et al.  Unified analysis of switched-capacitor resonant converters , 2004, IEEE Transactions on Industrial Electronics.

[14]  Sam Ben-Yaakov,et al.  Algebraic foundation of self adjusting Switched Capacitors Converters , 2009, 2009 IEEE Energy Conversion Congress and Exposition.

[15]  S. Ben-Yaakov,et al.  Average simulation of PWM converters by direct implementation of behavioral relationships , 1993, Proceedings Eighth Annual Applied Power Electronics Conference and Exposition,.

[16]  Khai D. T. Ngo,et al.  Steady-state analysis and design of a switched-capacitor DC-DC converter , 1992, PESC '92 Record. 23rd Annual IEEE Power Electronics Specialists Conference.

[17]  E. Bayer,et al.  Current mode charge pump: topology, modeling and control , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[18]  A. Ioinovici,et al.  Switched-capacitor inverter with high power density and enhanced regulation capability , 1998 .

[19]  S.R. Sanders,et al.  Analysis and Optimization of Switched-Capacitor DC–DC Converters , 2008, IEEE Transactions on Power Electronics.

[20]  Michael Evzelman,et al.  Optimal switch resistances in Switched Capacitor Converters , 2010, 2010 IEEE 26-th Convention of Electrical and Electronics Engineers in Israel.

[21]  Josef A. Nossek,et al.  Optimal charging of capacitors , 2000 .

[22]  Michael Evzelman,et al.  Generic and unified model of Switched Capacitor Converters , 2009, 2009 IEEE Energy Conversion Congress and Exposition.