论文信息 - A 1 MHz, lOOW COMMERCIAL, HIGH-DENSITY POINT-OF-LOAD POWER SUPPLY USING DIRECT-BOND COPPER AND SURFACE

A 1 MHz, lOOW COMMERCIAL, HIGH-DENSITY POINT-OF-LOAD POWER SUPPLY USING DIRECT-BOND COPPER AND SURFACE

This paper presents a point-of-load power supply designed for use in a distributed power system. In order to be commercially viable this supply requires low cost components and packaging, while maintaining a small footprint and a half-inch height for interboard spacing requirements. The unique combination of direct-bond copper; surface mount, and advanced magnetic technologies permits an estimated maximum hybrid power density of 4OWlcu.in. while using low-cost, readily available commercial components. Packaging details of a IO0 Wprototpe operating at 1 MHz with 34 Wlcu. in. hybrid power density are described inchdingpackaging constraints caused by the electrical requirements of the resonant topology utilized. In addition, thermal considerations which must be met in order to reach the maximum hybrid power density are discussed.

Mount Technologies | Mount Technologies

[1] C. Neugebauer,et al. The Direct Bonding of Metals to Ceramics by the Gas‐Metal Eutectic Method , 1975 .

[2] Martin F. Schlecht,et al. The relationship between size and power dissipation in a 1-10 MHz transformer , 1989 .

[3] G. Ellison. Thermal computations for electronic equipment , 1984 .

[4] Martin F. Schlecht,et al. A high frequency, low volume, point-of-load power supply for distributed power systems , 1987, IEEE Power Electronics Specialists Conference.

[5] Phoivos D. Ziogas,et al. A novel approach for minimizing high-frequency transformer copper losses , 1988 .

[6] K.D.T. Ngo,et al. Evaluation of trade-offs in transformer design for very-low-voltage power supply with very high efficiency and power density , 1990, Fifth Annual Proceedings on Applied Power Electronics Conference and Exposition.

[7] John G. Kassakian,et al. Issues related to 1-10-MHz transformer design , 1989 .