INTERNATIONAL JOURNAL OF ENGINEERING, SCIENCE AND - Volume 7, Issue 3, March 18

Pages: 117-130
Print Article   Download XML  Download PDF

STUDY AND ANALYSIS OF CHARGE PUMP CIRCUITS AND INDUCTOR BASED DC-DC CONVERTERS FOR MOBILE APPLICATIONS

Author: KAOUTAR BENDAOUD? SALAHDDINE KRIT ?? LAHOUCINE ELMAIMOUNI???

Category: Engineering, Science and Mathematics

Abstract:

The mobiles market is very active; constructors do not stop to add functionalities to their mobiles. Power supplies relies on batteries .However batteries provide a limited operating time and ustable voltage ; given the highly variable nature of batteries (e.g., 2.7-4.2 V for Li-ion), systems often require supply voltages to be both higher and lower than the battery voltage (e.g., power amplifier for CDMA applications).In order to ensure a correct behavior of embedded sub-circuits of mobiles which need a stable and clean voltage , DC-DC converters are employed to generate different stable and fixed voltage from battery.

Keywords: Portable applications ; Inductor DC-DC converters ; Charge pumps ; Regulation mode.