The Development Of High Power Density Dc / Dc Module Power

A series of high-efficiency full-brick isolated DC-DC converters designed specifically for use with radio frequency power amplifiers and similar telecom equipment. The new series of converters comprises five 28 V output models for optimal applications flexibility. The top of the power is capable of delivering 25 A at 28 V (700 W), yielding a power density in excess of 127 W/in3.full-brick converters are based on an advanced single forward topology, using ultra-fast recovery output diodes and a high fixed switching frequency of 350KHz, to provide conversion efficiencies of up to 89% at full load. This minimizes internal power dissipation, which simplifies thermal management and contributes to the converters' excellent reliability. Feedback isolation is achieved with the use of opto-couplers,The design of the plannar core is used to improve the conversion efficiencies and make the size of the conversion smaller.