Title :
Control design and closed-loop analysis of a switched-capacitor DC-to-DC converter
Author :
Lim, Wonseok ; Choi, Byungcho ; Kang, Yonghan
Author_Institution :
Sch. of Electron. & Electr. Eng., Kyungpook Nat. Univ., Taegu, South Korea
fDate :
6/23/1905 12:00:00 AM
Abstract :
This paper presents the theoretical and practical details involved in the control design and closed-loop analysis of a step-down switched-capacitor DC-to-DC power converter. The state-space averaging technique is applied to extract the small-signal dynamics of the power stage, and a graphical loop gain method is used to design the feedback compensation and analyze the closed-loop performance of a switched-capacitor converter. The results of the control design and closed-loop analysis are substantiated by experiments on a prototype switched-capacitor converter
Keywords :
DC-DC power convertors; closed loop systems; control system analysis; control system synthesis; feedback; state-space methods; switched capacitor networks; voltage control; closed-loop analysis; closed-loop performance; control design; feedback compensation; graphical loop gain method; small-signal dynamics extraction; state-space averaging technique; step-down switched-capacitor DC-to-DC converter; switched-capacitor power converter; Capacitors; Control design; DC-DC power converters; Equations; Pulse width modulation; Signal analysis; Signal design; Switches; Switching converters; Transfer functions;
Conference_Titel :
Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-7067-8
DOI :
10.1109/PESC.2001.954299
