Input stage enhancement of a switched-capacitor switched inductor circuit

Author

Mellincovsky, Martin ; Tapuchi, Saad

Author_Institution

Dept. of Electr. & Electron. Eng., SCE Coll. of Eng., Ashdod, Israel

fYear

2012

fDate

14-17 Nov. 2012

Firstpage

1

Lastpage

5

Abstract

This paper proposed the enhance of the input stage of a switched-inductor switched capacitor DC-DC converter. The inductors are charged in parallel from input voltage and discharged in series to the capacitor which are connected in parallel to each other, and then the capacitors are discharges in series to the load. Thus, the converter can achieve high step-up voltage gain which means high input currents. The number of switches in the input stage of this converter was reduced, reducing conduction losses and achieving a better efficiency. Mathematical analyses of the steady state operation and simulation results are presented. The simulations are according to the original circuit, 1kW output power, 700V output voltage and input voltage within the range from 70V to 120V.

Keywords

DC-DC power convertors; capacitors; inductors; losses; mathematical analysis; switches; conduction losses reduction; high step-up voltage gain; input stage enhancement; mathematical analysis; power 1 kW; switched-inductor switched capacitor DC-DC converter; voltage 70 V to 120 V; voltage 700 V; Capacitors; Inductors; MOSFETs; Simulation; Stress; Switches; Switching circuits; Switched capacitor; high effiency; high step up; switched inductor;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical & Electronics Engineers in Israel (IEEEI), 2012 IEEE 27th Convention of

Conference_Location

Eilat

Print_ISBN

978-1-4673-4682-5

Type

conf

DOI

10.1109/EEEI.2012.6377038

Filename

6377038