Analysis and Design of Boost DC-DC Converters for Intrinsic Safety

Author

Liu, Shu-lin ; Liu, Jian ; Mao, Hong

Author_Institution

Sch. of Electr. & Control Eng., Xi´´an Univ. of Sci. & Technol.

Volume

2

fYear

2006

fDate

14-16 Aug. 2006

Firstpage

1

Lastpage

6

Abstract

An improved boost DC-DC converter meeting the requirements of intrinsic safety is presented. The maximum values of output short-circuit discharged energy (OSDE) in CCM and DCM are analyzed, respectively. It is pointed out that the OSDE of a boost converter is the summation of the energy from the source and the inductor and the energy stored in the capacitor. It is proved that the maximal value of OSDE (MOSDE) in CCM is the largest within the total operating range. Once MOSDE is less than the minimum ignition discharged energy, the converter meets the requirement of output intrinsic safety. The design method of inductor and capacitor is proposed according to the requirement of output intrinsic safety and the desired output voltage ripple level within the total ranges of input voltage and the load. Experiment results are in positive with the analysis showing the feasibility of the described methods

Keywords

DC-DC power convertors; power capacitors; power inductors; safety; boost DC-DC converter design; capacitor design; continuous-current-mode; discontinuous-conduction-mode; energy storage; inductor design; intrinsic safety; minimum ignition discharged energy; output short-circuit discharged energy; output voltage ripple level; Capacitors; DC-DC power converters; Electrical safety; Electricity supply industry; Ignition; Inductors; Power supplies; Sparks; Switching converters; Voltage; Intrinsic safety; boost converters; output ripple voltage; the minimum ignition discharged energy;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International

Conference_Location

Shanghai

Print_ISBN

1-4244-0448-7

Type

conf

DOI

10.1109/IPEMC.2006.4778193

Filename

4778193