Title :
A new constant on-time control with ripple compensation and offset cancellation for buck converter
Author :
Zhengguang Liu ; Jinbin Zhao ; Keqing Qu ; Fen Li ; Wei Cao
Author_Institution :
Coll. of Electr. Eng., Shanghai Univ. of Electr. Power, Shanghai, China
fDate :
Sept. 28 2014-Oct. 2 2014
Abstract :
In this paper, a new constant on-time control with output capacitor equivalent series resistance (ESR) ripple compensation and offset cancellation for buck converter is presented. The proposed controller uses lossless capacitor current sensing circuit and an offset-cancellation circuit, which not only improves system stability, but also eliminates the output dc offset.
Keywords :
power convertors; power system stability; voltage control; buck converter; constant on-time control; equivalent series resistance; lossless capacitor current sensing circuit; offset cancellation circuit; ripple compensation; Capacitors; Circuit stability; Control systems; Impedance; Sensors; Stability criteria; Transfer functions; Buck converter; Constant on-time control; Ripple compensation;
Conference_Titel :
Telecommunications Energy Conference (INTELEC), 2014 IEEE 36th International
Conference_Location :
Vancouver, BC
DOI :
10.1109/INTLEC.2014.6972123
