Title :
A novel two-phase buck converter with two cores and four windings
Author :
Nishijima, Kimihiro ; Ishida, Daisuke ; Harada, Koosuke ; Nabeshima, Takashi ; Sato, Terukazu ; Nakano, Tadao
Author_Institution :
Oita Univ., Oita
fDate :
Sept. 30 2007-Oct. 4 2007
Abstract :
A novel two-phase buck converter with two cores and four windings is proposed. In this converter, a capacitor is added to the primary side for dividing the input source voltage into one half in the similar way as that of a typical half bridge converter. The voltage conversion ratio is given as one fourth of the duty cycle with unity turns ratio of the each transformer. The output capacitor ripple and the switching losses are well reduced. The currents in each phase are balanced automatically without any current sensing methods.
Keywords :
power convertors; duty cycle; four windings; input source voltage; ripple capacitor; switching losses; two cores windings; two-phase buck converter; typical half bridge converter; unity turns ratio; voltage conversion ratio; Bridge circuits; Buck converters; Capacitors; Coupling circuits; Rectifiers; Smoothing methods; Stress; Switches; Switching circuits; Switching loss;
Conference_Titel :
Telecommunications Energy Conference, 2007. INTELEC 2007. 29th International
Conference_Location :
Rome
Print_ISBN :
978-1-4244-1627-1
Electronic_ISBN :
978-1-4244-1628-8
DOI :
10.1109/INTLEC.2007.4448902
