A Modular 200Amp - 48Volt off Line Switch Mode Rectifier

The paper provides an outline to the design and development of a high power, off line, switch mode battery charging rectifier. An outline of the design problems considered during the rectifier development as well as the technological advantages achieved is given. This information will provide end users of such equipment a more detailed understanding of the features and advances such a system has to offer. The paper covers the development of a new concept in high power switching converter technology and the application of this technology to a modular switch mode rectifier design. This new design concept in switch mode power conversion technology offers reliable operation at high power levels. Operating problems of current designs utilizing conventional switching circuit topologies will be referenced in order to lay a ground work for the goals of this new converter design. Circuit design goals including: the development of a more reliable conversion process capable of power circuit protection under high stress transient operating conditions, high efficiency convection cooled design offering low systems life cost and the reduction of EMI over standard switching designs even at this increased power level is covered. A 200Amp 48Volt Switch Mode Rectifier product is introduced featuring a high efficiency light weight design offering low operating life cost and a high degree of user flexibility. A detailed description of the operating features of this new parallel current sharing modular design is given.