Fixed inductors for use in electronic and telecommunication equipment. Marking codes

1997 ◽  
Keyword(s):  
Telecommunication Equipment

SISTEM AUTOMATIC SWITCH REDUNDANT UPS UNTUK BEBAN ESSENSIAL

2019 ◽  
Vol 5 (1) ◽  
pp. 35-45
Author(s):  
Markus Dwiyanto Tobi ◽  
Alimuddin Mappa
Keyword(s):  
Power Supply ◽  
Working Condition ◽  
Control Circuit ◽  
Energy Sources ◽  
Main Equipment ◽  
Telecommunication Equipment ◽  
Input Condition ◽  
Research Designs ◽  
Switch Circuit

The role of the power supply device is to produce, process and distribute energy sources. Telecommunication equipment can only operate if it has continuous supply. Therefore, to maintain the continuity of the supply, a UPS (Uninterruptable Power Supply) device system is needed so that the supply to the Essential Load device will remain available so that continuity will be maintained. This research designs and proposes how a series of automatic redundant switch systems on UPS to ensure the availability of power supply for the main equipment of telecommunications systems. The Auto switch circuit is designed to have 3 (three) working stages which will trigger the relay driver as control circuit, namely the normal working condition of the contactor input K1 is present, the input condition is zero (lost), and the input condition is present. This system can automatically supply power to telecommunications equipment.

Application of Nanocrystalline Magnetic Materials in Electromechanical Devices

2011 ◽  
Vol 694 ◽  
pp. 341-344
Author(s):  
Li Jun Wang ◽  
Jie Qiong Li ◽  
Hong Jing Wang
Keyword(s):  
Magnetic Materials ◽  
Nanocrystalline Materials ◽  
Magnetic Loss ◽  
Electronic Devices ◽  
Silicon Steel ◽  
Surveillance Systems ◽  
Flux Reversal ◽  
Telecommunication Equipment ◽  
Electromechanical Devices ◽  
Property Modification

Application of nanocrystalline magnetic materials in electromechanical devices is increasingly being adopted, helping to solve energy-saving problems and global warming. Compared with conventional silicon steel materials, nanocrystalline materials show faster flux reversal, lower magnetic loss and more versatile property modification, which result in the successful application in modern electronic devices. Nanocrystalline magnetic materials will be increasingly popularized and used in power electronics, telecommunication equipment and electronic article surveillance systems due to the demands for smaller and efficient devices in the future.

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