Title :
The optimum chip size of a thin film reactor for a high-efficiency operation of a micro DC-DC converter
Author :
Sugahara, Satoshi ; Edo, Masaharu ; Sato, Toshiro ; Yamasawa, Kiyohito
Author_Institution :
Fuji Electr. Corp. Res. & Dev. Ltd., Matsumoto, Japan
Abstract :
For an on-chip power-converter, a thin film reactor is fabricated on a silicon substrate and the optimum chip size is investigated to achieve a high efficiency when it is mounted in a buck converter. The optimum size for the efficiency of 85% is about 2.5 mm for a switching frequency of 1 MHz
Keywords :
DC-DC power convertors; circuit optimisation; power integrated circuits; reactors (electric); switching circuits; thin film circuits; 1 MHz; 2.5 mm; 85 percent; Si; buck converter; micro DC-DC power converter; optimum chip size; silicon substrate; switching frequency; thin film reactor; Amorphous magnetic materials; Coils; Frequency; Inductors; Magnetic films; Permeability; Semiconductor thin films; Silicon; Substrates; Transistors;
Conference_Titel :
Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE
Conference_Location :
Fukuoka
Print_ISBN :
0-7803-4489-8
DOI :
10.1109/PESC.1998.703263
