Title :
A new ring type switched-capacitor DC-DC converter with low inrush current and low ripple
Author :
Hara, Noriaki ; Oota, Ichirou ; Ueno, Fumio
Author_Institution :
Kumamoto Nat. Coll. of Technol., Japan
Abstract :
A new switched-capacitor(SC) DC-DC converter is presented. This converter consists of n ring-shaped capacitors connected by switches. The converter has the following features as compared with conventional SC converters: (1) since only one capacitor is charged at one time, the inrush current and the input current ripple are small; (2) the converter has a smaller number of switches; (3) all floating switches form totem-pole connections with grounded switches, thus driving them is easy; and (4) since the generation of the magnetic field is few, together with some signal processing circuits, it is possible to be implemented in one chip IC form such as a system-on-chip
Keywords :
DC-DC power convertors; power capacitors; power integrated circuits; power semiconductor switches; switched capacitor networks; capacitor charging; current ripple; floating switches; grounded switches; inrush current; power IC; ring-type switched-capacitor DC-DC power converter; signal processing circuits; system-on-chip; totem-pole connections; DC-DC power converters; Magnetic fields; Magnetic switching; Signal generators; Signal processing; Surges; Switched capacitor circuits; Switches; Switching circuits; Switching converters;
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.1998.703379
