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The amount of energy consumed by data centers and telecom buildings is increasing annually due to the buildup and high-density arrangement of ICT equipment, which is needed to handle the rapid rise in traffic brought on by the spread of smartphones and advances in the Internet usage environment. At the same time, services that use ICT equipment are expected to provide high levels of reliability and...
We developed the alarm fuse for High Voltage Direct Current (HVDC) power system. It was realized stable breaking characteristics and low transient voltage by our specific know-how for interrupting DC voltage and unique shape of fuse element.
The purpose of this paper is to present the digital peak current mode phase-shifted full-bridge zero volt switching dc-dc converter for the data center in the higher voltage direct current (HVDC) system, and show its transient response. The proposed peak current mode control circuit is composed of the RC integrator and comparator only and can detect the peak current in real time. At first, the basic...
To promote the widespread use of HVDC power supply systems, this paper proposes high-efficiency downsized power conversion (380 V to −48 V) equipment for HVDC use having a size small enough for mounting in the dead space of a rack and describes its performance. Configuring 380 V/−48 V conversion equipment with existing technology lowers the efficiency of the entire power supply system and increases...
With the continuous increase of corporate and personal needs of the Internet, the data center industry has entered a stage of large-scale planning and construction. It is expected that in 2015 the national market benefit of data centers will be more than 50 billion. As the business development, the power consumption of data center also increased year by year. But traditional technique and rough construction...
A new power supply topology is proposed for using various types of power supply systems together in data centers and telecom buildings. In this topology, the power supply chain from the building power receiving point to the IC chips in the ICT equipment is organized into blocks to simplify the number of DC bus conversion steps. Two types of voltage for the DC bus are proposed; 380 V and 48 V. This...
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