• Carlos Alberto Gallo Universidade Federal de Uberlândia



Double Forward, PWM Half-Bridge Inverter


This paper presents a new topology of soft-switc hing two-switch Forward converter associated to a quadratic Boost converter, which provides large voltage step-up (from 12Vdc to 80Vdc). The combination of the stages results in a switched-mode power supply (SMPS), whose output voltages are +200Vdc and -200Vdc. The inverter put in these converter is very fast and simple, because it has a little components quantity, and this form can be said that this control is very robust, and in the other side, the control presents a low cost. The little volume presented in this converter present other important thing, because it has a small volume and this form, have a big energy density. The operation of this converters are analyzed, as some results concerning the proposed SMPS with output AC are presented.


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Biografia do Autor

Carlos Alberto Gallo, Universidade Federal de Uberlândia

Universidade Federal de Uberlândia, Faculdade de Engenharia Mecânica


D. Maksimovic; S. Cuk “Switching Conv erters with Wide DC Conversion Range”, IEEE Transactions on Power Electronics, vol. 6, No. 1, January, 1991, pp. 151-157.

L. H. S. C. Barreto; E. A. A. Coelho; V. J. Farias; L. C. Freitas; J. B. Vieira Jr. “An Optimal Lossless Commutation Quadratic PWM Boost Converter”, Applied Power Electronics Conference and Exposition, APEC 2002, Dallas, Texas, March, 2002, pp. 624-629.

B. Jacobson; J. McGinty; Z. Salameh “A Two-Stage Two-Phase Double-Forward Converter for Pulse Load Application," Proceedings of the Fourth Annual APEC – Applied Power Electronics Conference, Baltimore, Maryland, March, 1989, pp. 46-55.

L. Petersen “Advantages of Using a Two-Switch Forward in Single-Stage Power Factor Corrected Power Supplies”, 22 nd International Telecommunications Energy Conference, INTELEC 2000, September, 2000, pp. 325-331.

D. V. Ghodke; K. Muralikrishnan “ZVZCS, Dual, Two-Transistor Forward DC-DC Converter with Peak Voltage of Vin/2, High Input and High Power Application”, Power Electronics Specialists Conference, PESC’02, Cairns, Queensland, Australia, June, 2002, pp. 1853-1858

Cronin, D., and Biess, J. (1971) Non-dissipative power loss suppression circuit for transistor controlled power converters. US Patent 3,628,047, Dec. 1971.

Domb, M., et al. (1984) Non-dissipative turn-off snubber alleviates switching power dissipation, second-breakdown stress and Vce overshoot: Analysis, design procedure, and experimental verification. In IEEE PESC Record, 1984, 445—454.

Tan, F. D., et al. (1997) The double forward converter: An enabling technology. Technical presentation, the 14th Space Power Workshop, Redondo Beach, CA, 1997.

Tan, F. D., et al. (1998) A series of high-efficiency, radiation-hardened DC/DC converters for high voltage bus. Presented at IECEC-98-225, 33rd Intersociety Engineering Conference on Energy Conversion, Colorado Springs, CO, Aug. 2—6, 1998 (invited presentation).

Tan, F. D. (2001) The forward converter: From the classic to the contemporary. Presented at IEEE APEC, Seminar, Mar. 2001.