The objective of this paper is to discuss systolic arrays (SAs) that are suitable for regular three-nested loop algorithms implementation and which enable the possibility of high dependability calculations for the SAs...
详细信息
The objective of this paper is to discuss systolic arrays (SAs) that are suitable for regular three-nested loop algorithms implementation and which enable the possibility of high dependability calculations for the SAs obtained in this way. This is made by considering the different possible values of flow period of processor for SAs synthesized on adaptable algorithms. Therefore, the algorithm for two matrix multiplication is one typical adaptable algorithm obtained results illustrated in the end of this paper by the examples of two rectangular matrix multiplication realized with the so called flowing and hexagonal two dimensional 2D SAs of planar SAs group.
This article deals with the new design concept of DC/DC isolated converters for auxiliary drive or Central Power Units (CPU) of traction vehicles fed from DC overhead line. Auxiliary drives present lower power devices...
详细信息
ISBN:
(纸本)9781467386982
This article deals with the new design concept of DC/DC isolated converters for auxiliary drive or Central Power Units (CPU) of traction vehicles fed from DC overhead line. Auxiliary drives present lower power devices in comparison to main traction converters and they are mostly dedicated to generate standard power grid supplying various on-board equipment (e.g. fans, compressors, heating and air condition) and to charge on-board batteries and on-board electronics. The dc/dc isolated converter consists of an input full bridge or half bridge converter feeding a high frequency transformer (HFT) and an output diode rectifier which produces dc voltage bus lines for 3-phase inverters or battery chargers or on-board electronics. In present there is a strong customer demand on weight, size and efficiency of DC/DC isolated converter. Therefore this paper describes new design concept based on resonant input converter feeds the HFT. Zero current switch mode enables increasing of switching frequency and then HFT weight and size elimination and efficiency improvement as well.
This paper is a product of the IFIP Working Group on Numerical Software (WG 2 5) and has been approved by Techmcal Committee 2 of IFIP. A standard set of names and deflnihons is presented for machine parameters One of...
详细信息
暂无评论