Browse > Article

PFM-Mode Boost DC-DC Convertor for Mobile Multimedia Application  

Kim, Ji-Man (Department of Nano System Eng, Inje University)
Park, Yong-Su (Department of Elecrtonics, Chung Cheong University)
Song, Han-Jung (Department of Nano System Eng, Inje University)
Publication Information
전자공학회논문지 IE / v.47, no.3, 2010 , pp. 14-18 More about this Journal
Abstract
In this paper, we describe a CMOS DC-DC converter with a variable output voltage(5-7V @100mA) for a portable battery-operated system applications. The proposed DC-DC converter is used along with a Pulse-Frequency Modulation (PFM) method and consists of reference circuit, a feedback resistor, a controller, and an internal oscillator. The integrated DC-DC converter with two external passive components(L,C) has been designed and fabricated on a 0.5um 2-poly 3-metal CMOS process and could be applied to the Personal Digital Assistants(PDA), cellular Phone, Laptop Computer, etc.
Keywords
DC-DC Converter; Boost; PFM;
Citations & Related Records
연도 인용수 순위
  • Reference
1 T. R. Ying, W. H. Ki. M. C, "Area-Effiecient CMOS Charge Pumps for LCD Drivers," IEEE Journal of Solid-State circuit, Vol.38, No. 10, October 2003.
2 Robert W. Erickson, Dragan Maksimovic, Fundamentals of Power Electronics Second Edition, KluwerAcademic, 2002.
3 S. E. Lee, W. S. Oh. "Personal Communication System Hand-set with Oraganic Light Emitting Diode Display." Accepted on The 22nd International Display Research Conference, October. 2002.
4 B. Sahu and G. A. Rincon-Mora, "An accurate, low-voltage, CMOS switching power supply with adaptive on-time pulse-frequency modulation (PFM) control," IEEE Trans. Circuits Syst. I, Reg. Papers, vol. 54, no. 2, pp. 312-321, Feb. 2007.
5 F. L. Luo, "Six Self-Lift DC-DC Converters, Voltage Lift Technique", IEEE Trans. Ind. Elctrons., Vol. 48, pp. 1268-1272, Dec. 2001.   DOI   ScienceOn
6 Richard Cushing "DDS(Directly Disgital Synthesizer)" Analog Devices 1995.
7 J.A cobos, O. Garcia, J. Uceda, F. Aldana, , "Optimizied Synchronous Retification srage for Low Output Voltage DC/DC Convertr," IEEE Applied Power Electrics Confeence (APEC94), 1994.
8 Shih-Chieh liao, cia, "Low current pulsefrequency modulation converter,cation srage for Low Output Voltage DC/DC Converter," M.S. thesis, Feng-Chia University, June, 2004.
9 김희준, "스위치 모드 파워 서플라이", 성안당, 1993.
10 P.L. Miribel-Catala, M.Puig-Vidal, J.S. Marti, P. Goyhenetche, X. Q. Nguyen, "An integrated digital PFM dc-dc boost converter for a power management application-a RGB backlight LED system driver," IEEE industrial Electronics Society, vol, 1, pp.37-42. Nov. 2002.