Title :
New switched-capacitor DC-DC converter with low input current ripple and its hybridization
Author :
Umeno, Tohru ; Takahashi, Kiyoshi ; Oota, I. ; Ueno, Fumio ; Inoue, Takahiro
Author_Institution :
Sumitomo Metal Ind. Ltd., Hyogo, Japan
Abstract :
A switched-capacitor (SC) DC-DC converter is developed to reduce the input current ripple and to achieve miniaturization. A fixed-capacitor added to an original SC reduces the input current ripple. This converter is miniaturized by a copper thick-film hybrid technique. The features of this converter are as follows: (1) low input current ripple (one third compared with that of original SC DC-DC converters), (2) very high efficiency (90%), and (3) very high power density (23 W/in3 in the 10 W class)
Keywords :
equivalent circuits; hybrid integrated circuits; power convertors; power integrated circuits; switched capacitor networks; thick film circuits; 10 W; 90 percent; Cu; DC-DC converter; SC converter; high efficiency; high power density; hybridization; input current ripple; switched-capacitor; Capacitors; Copper; DC-DC power converters; Power conversion; Power system reliability; Regulators; Switches; Switching circuits; Switching converters; Voltage;
Conference_Titel :
Circuits and Systems, 1990., Proceedings of the 33rd Midwest Symposium on
Conference_Location :
Calgary, Alta.
Print_ISBN :
0-7803-0081-5
DOI :
10.1109/MWSCAS.1990.140915
