Abstract：Boost power factor correction (PFC) converter operating in critical conduction mode (CRM) features high input power factor, zero-current turn-on for power switch, and zero-current turn-off for diode. Employing interleaving technique can reduce the input current ripple and the output capacitor RMS current. This paper discusses the two-phase interleaved CRM Boost PFC converter with the inversely coupled inductor. The coupling effect on switching frequency is analyzed, and the design procedures including inductance, turns number and air gap are introduced step by step under the conditions that the minimum switching frequency is larger than 20kHz and the core is not saturated. The inversely coupling can reduce the inductors’ turns number. The experimental results are presented at last.
[1] Lai J S, Chen D. Design consideration for power factor correction boost converter operating at the boundary of continuous conduction mode and discontinuous conduction mode[C]. Proceedings of IEEE Applied Power Electronics Conference , 1993: 267-273. [2] Miwa B A, Otten D M, Schlecht M F. High efficiency power factor correction using interleaving techniques[C]. Proceedings of IEEE Applied Power Electronics Conference, 1992: 557-568. [3] Balogh L, Redl R. Power-factor correction with interleaved boost converters in continuous-inductor- current mode[C]. Proceedings of IEEE Applied Power Electronics Conference, 1993: 168-174. [4] Elmore M S. Input current rippled cancellation in synchronized, parallel connected critically continuous boost converters[C]. Proceedings of IEEE Applied Power Electronics Conference, 1996: 152-158. [5] Ishii T, Mizutani Y. Power factor correction using interleaving technique for critical mode switching converters[C]. Proceedings of IEEE Power Electronics Specialist Conference, 1998: 905-910. [6] Dahono P A, Riyadi S, Mudawari A, et al. Output ripple analysis of multiphase dc-dc converter[C]. Proceedings of IEEE International Conference on Power E1ectronics and Drive Systems, 1999: 626-631. [7] Noon J P. Designing High-power factor off-line power supplies[Z]. Texas Instruments Power Supply Design Seminar, 2003: 1500. [8] Wong P L, Xu P, Yang P, et al. Performance improvements of interleaving VRMs with coupling inductors[J] IEEE Transactions on Power Electronics, 2001, 16(4): 499-507. [9] Li J, Sullivan C R, Schultz A. Coupled inductor design optimization for fast-response low-voltage dc-dc converters[C]. Proceedings of IEEE Applied Power Electronics Conference, 2002: 817-823. [10] Zumel P, Garcia O, Cobos J A, et al. Magnetic integration for interleaved converters[C]. Proceedings of IEEE Applied Power Electronics Conference, 2003: 1143-1149. [11] Kolar J W, Kamath G R, Mohan N, et al. Self-adjusting input current ripple cancellation of coupled parallel connected hysteresis-controlled boost power factor correctors[C]. Proceedings of IEEE Power Electronics Specialist Conference, 1998: 164-173. [12] Shin H B, Park J G, Chung S K, et al. Generalized steady-state analysis of multiphase interleaved boost converter with coupled inductors[J]. IEE Electronics Power Application, 2005, 152(3): 584-594, [13] Chandrasekaran S, Gökdere L U. Integrated magnetics for interleaved dc-dc boost converter for fuel cell powered vehicles[C]. Proceedings of IEEE Power Electronics Specialist Conference, 2004: 356-361. [14] Wen W, Lee Y S. A two-channel interleave boost converter with reduced core loss and copper loss[C]. Proceedings of IEEE Power Electronics Specialist Conference, 2004: 1003-1009. [15] Huber L, Irving B T, Adragna C, et al. Implementation of open-loop control for interleaved DCM/CCM boundary boost PFC converters[C]. Proceedings of IEEE Applied Power Electronics Conference, 2008: 1010-1016.
2013, Vol. 28 
