Title :
A Monolithic Boost Converter with an Adaptable Current-Limited PFM Scheme
Author :
Chen, Hou-Ming ; Jiang, Ding-Da ; Chang, Robert C.
Author_Institution :
Dept. of Electr. Eng., Nat. Chung-Hsing Univ., Taichung
Abstract :
In this paper, a boost converter is proposed, which adopts an adaptable current-limited PFM circuit to decrease the output voltage ripple. Unlike the conventional current-limited circuits, the proposed current-limited circuit could provide the appropriate current to the output load. This is realized by using an adaptable loading feedback circuit to automatically adjust the current-limited current according to operating conditions. The proposed circuit was designed by using TSMC 0.35mum CMOS 2P4M technology. Simulation results showed that the ripple voltage could be effectively reduced 36.7% compared with the conventional circuit at the 100mA loading current
Keywords :
CMOS integrated circuits; circuit feedback; power convertors; pulse frequency modulation; 0.35 micron; 100 mA; CMOS technology; adaptable current-limited PFM circuit; boost converter; feedback circuit; pulse frequency modulation; CMOS technology; DC-DC power converters; Feedback circuits; Inductors; Lighting control; Pulse width modulation; Pulse width modulation converters; Switches; Switching converters; Voltage control;
Conference_Titel :
Circuits and Systems, 2006. APCCAS 2006. IEEE Asia Pacific Conference on
Conference_Location :
Singapore
Print_ISBN :
1-4244-0387-1
DOI :
10.1109/APCCAS.2006.342094
