A Digital PFC Controller without Input Voltage Sensing

This paper introduces a novel digital PFC (DPFC) control approach that requires no input voltage sensing or current loop compensation, yet results in low-harmonic operation over a universal input voltage range and loads ranging from high-power operation in continuous conduction mode down to near-zero load. The controller is based on low-resolution DPWM and A/D converters, requires no microcontroller or DSP programming, and is well suited for a simple, low-cost integrated-circuit realization, or as an HDL core suitable for integration with other power control functions. Experimental verification results are shown for a 500 W boost PFC rectifier.

[1]  P. Mattavelli,et al.  Predictive digital control of power factor preregulators with input voltage estimation using disturbance observers , 2005, IEEE Transactions on Power Electronics.

[2]  David A. Johns,et al.  Analog Integrated Circuit Design , 1996 .

[3]  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..

[4]  P. Mattavelli,et al.  Digital control of single-phase power factor preregulators suitable for smart-power integration , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[5]  C. Q. Lee,et al.  Linear peak current mode control: a simple active power factor correction control technique for continuous conduction mode , 1996, PESC Record. 27th Annual IEEE Power Electronics Specialists Conference.

[6]  K. M. Smedley,et al.  A family of continuous-conduction-mode power-factor-correction controllers based on the general pulse-width modulator , 1998 .

[7]  M. Soldano,et al.  One cycle control IC simplifies PFC designs , 2005, Twentieth Annual IEEE Applied Power Electronics Conference and Exposition, 2005. APEC 2005..

[8]  J.A. Melkebeek,et al.  Sample correction for digitally controlled boost PFC converters operating in both CCM and DCM , 2003, Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2003. APEC '03..

[9]  Simone Buso,et al.  Simple digital control improving dynamic performance of power factor preregulators , 1997 .

[10]  Kun Wang,et al.  High-frequency digital controller for dc-dc converters based on multi-bit /spl Sigma/-/spl Delta/ pulse-width modulation , 2005, Twentieth Annual IEEE Applied Power Electronics Conference and Exposition, 2005. APEC 2005..

[11]  Bin Wu,et al.  A digital power factor correction (PFC) control strategy optimized for DSP , 2004 .

[12]  D. Maksimovic,et al.  Dead-zone digital controllers for improved dynamic response of low harmonic rectifiers , 2006, IEEE Transactions on Power Electronics.

[13]  Prasad Enjeti,et al.  Control of multiple single phase PFC modules with a single low-cost DSP , 2003 .

[14]  P. Zumel,et al.  A simple digital hardware to control a PFC converter , 2001, IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243).

[15]  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..

[16]  Oscar Garcia,et al.  Concurrent and simple digital controller of an AC/DC converter with power factor correction based on an FPGA , 2003 .

[17]  Paolo Mattavelli,et al.  Power factor preregulators with improved dynamic response , 1995 .

[18]  Stéphane Bibian,et al.  Digital control with improved performance for boost power factor correction circuits , 2001, APEC 2001. Sixteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.01CH37181).

[19]  Robert W. Erickson,et al.  Self-tuning digitally controlled low-harmonic rectifier having fast dynamic response , 2003 .

[20]  Fred C. Lee,et al.  A general technique for derivation of average current mode control laws for single-phase power-factor-correction circuits without input voltage sensing , 1999 .

[21]  Dragan Maksimovic,et al.  Nonlinear-carrier control for high-power-factor rectifiers based on up-down switching converters , 1998 .

[22]  Robert W. Erickson,et al.  Nonlinear-carrier control for high power factor boost rectifiers , 1995, Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95.

[23]  Shmuel Ben-Yaakov,et al.  PWM converters with resistive input , 1998, IEEE Trans. Ind. Electron..

[24]  M.A.E. Andersen,et al.  Hybrid control method for a single phase PFC using a low cost microcontroller , 2005, Twentieth Annual IEEE Applied Power Electronics Conference and Exposition, 2005. APEC 2005..

[25]  Robert W. Erickson,et al.  Fundamentals of Power Electronics , 2001 .