Title :
Transient response in a buck converter with bulk decoupling capacitors employing load current feedforward control
Author :
Kanemaru, Shoji ; Nabeshima, Takashi ; Nakano, Tadao
Author_Institution :
Dept. of Control Eng., Oita Inst. of Technol., Japan
Abstract :
To improve the dynamic regulation of the power supplies, several applications of the load current feedforward control have been reported. This paper presents the characteristics of the transient response of a buck-type DC-DC converter employing load current feedforward control when the large decoupling capacitor is added to the load parallel. In this case, the load is generally capacitive and its large capacitor is called a bulk capacitor. Considering the bulk capacitor and the line impedance, the dynamic behaviors of the converter have been analyzed to investigate the influence upon the effectiveness of the feedforward control. Furthermore, the instability encountered by the bulk capacitor is discussed
Keywords :
DC-DC power convertors; control system analysis computing; electric current control; feedforward; power capacitors; stability; transient response; buck power converter; buck-type DC-DC converter; bulk decoupling capacitors; control simulation; dynamic behaviors; dynamic regulation; instability; load current feedforward control; power supplies; transient response; Buck converters; Capacitors; Circuits; Current transformers; DC-DC power converters; Feedback control; Impedance; Pulse width modulation; Regulators; Transient response;
Conference_Titel :
Power Electronics and Motion Control Conference, 2000. Proceedings. IPEMC 2000. The Third International
Conference_Location :
Beijing
Print_ISBN :
7-80003-464-X
DOI :
10.1109/IPEMC.2000.885367
