A step-up DC-DC voltage converter using capacitors as energy-storage elements

Author

Karimov, Kh.S. ; Saqib, M.A. ; Ahmed, M.M. ; Turaev, M.A. ; Majeed, W.

Author_Institution

Phys. Tech. Inst., Acad. of Sci., Dushanbe, Tajikistan

fYear

2003

fDate

8-9 Dec. 2003

Firstpage

457

Lastpage

461

Abstract

This work reports the design and implementation of a step-up DC-DC converter in which capacitors are used as energy-storage elements. A number of characteristics of this converter such as its output voltage, load power and efficiency are observed with the variations in the frequency of the driving-circuit´s oscillator, base-emitter voltage of the power transistors and the source voltage. It is shown that, in optimal conditions, the converter´s output voltage is twice its input voltage. This kind of converter is easy to fabricate, and can be used in power modules located inside portable systems where smaller size and lower weight are crucial considerations.

Keywords

DC-DC power convertors; capacitor storage; driver circuits; network synthesis; power bipolar transistors; power capacitors; base-emitter voltage; capacitor energy-storage elements; converter characteristics; converter design; converter efficiency; converter size; converter weight; driving-circuit oscillator frequency variations; input voltage; load power; optimal conditions; output voltage; portable systems; power modules; power transistors; source voltage; step-up DC-DC voltage converter; Capacitors; DC-DC power converters; Inductors; Multichip modules; Power transistors; Regulators; Switches; Switching circuits; Voltage; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Multi Topic Conference, 2003. INMIC 2003. 7th International

Print_ISBN

0-7803-8183-1

Type

conf

DOI

10.1109/INMIC.2003.1416770

Filename

1416770