Title :
Ultra-small transformer using insulated hybrid structure for AC adapters of smart devices
Author :
Choi, Heung Gyoon Harry ; Kyu-Sun Chung ; Ge Li ; Tae won Heo
Author_Institution :
Dept. of Electr. Eng., Hanyang Univ., Seoul, South Korea
fDate :
Feb. 26 2014-March 1 2014
Abstract :
Increasing strong demand for smaller insulated transformers, an ultra-small transformer has been developed by adopting an insulated hybrid structure with the size of W16.5 × L19.5 × H10.5 mm^3, whose volume is 65 % smaller than conventional insulated transformers. Our new transformer has been improved in terms of noise reduction by 5-15 dB, power efficiency increase by 2 %, and production efficiency by 50 %. Relevant analyses are to be given.
Keywords :
AC-DC power convertors; electromagnetic interference; interference suppression; transformer insulation; AC adapters; EMI characteristics; efficiency 2 percent; efficiency 50 percent; insulated hybrid structure; noise reduction; power efficiency; production efficiency; smaller insulated transformers; smart devices; ultrasmall transformer; Conferences; Decision support systems; AC Adapter; Hybrid structure; Transformer;
Conference_Titel :
Industrial Technology (ICIT), 2014 IEEE International Conference on
Conference_Location :
Busan
DOI :
10.1109/ICIT.2014.6894878
