Title :
Bi-frequency control technology for pseudo continuous conduction mode switching DC-DC converter
Author :
Huabin Gong ; Songrong Wu ; Jie Liu ; Jing Chen ; Wenyi Tong
Author_Institution :
Sch. of Electr. Eng., Southwest Jiaotong Univ., Chengdu, China
Abstract :
Because of bi-frequency (BF) control technology for continuous conduction mode (CCM) switching DC-DC converter appearing low-frequency oscillation phenomenon, so that bi-frequency control technology is just used in discontinuous conduction mode (DCM) and the improvement of output power is limited. In this paper, bi-frequency control technology for pseudo continuous conduction mode (PCCM) switching DC-DC converter is studied to solve this problem, the reason of appearing the low-frequency oscillation phenomenon is analyzed operating in CCM, the principle of Bi-frequency control technology and the stable range of output power is illustrated operating in PCCM. Simulation and experiment shows that bi-frequency control technology for PCCM Buck converter has a good effect to suppress the low-frequency oscillation phenomenon and provide higher output power.
Keywords :
DC-DC power convertors; frequency control; switching convertors; PCCM buck converter; PCCM switching DC-DC converter; bifrequency control technology; low-frequency oscillation phenomenon; pseudo continuous conduction mode switching DC-DC converter; Frequency control; Inductors; Oscillators; Power generation; Switches; Voltage control; Pseudo Continuous Conduction Mode; bi-frequency control; low-frequency oscillation phenomenon; switching DC-DC converter; the stable range;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications (MAPE), 2013 IEEE 5th International Symposium on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4673-6077-7
DOI :
10.1109/MAPE.2013.6689933
