A step-up/step-down SC DC-DC converter and its power saving techniques

Author

Eguchi, Kiyoshi ; Pongswatd, Sawai ; Thepmanee, Teerawat ; Fujimoto, Kenji ; Sasaki, Hiromu

Author_Institution

Dept. of Inf. Electron., Fukuoka Inst. of Technol., Fukuoka, Japan

fYear

2013

fDate

15-17 May 2013

Firstpage

1

Lastpage

4

Abstract

To improve power efficiency, a power saving technique for the ring-type DC-DC converter is proposed in this paper. By reusing a part of the electric charge in stray parasitic capacitances, the proposed converter can achieve higher power efficiency than the conventional converter. The results of the simulation program with integrated circuit emphasis (SPICE) simulation showed that more than 8% of the power efficiency was improved by the proposed converter when the output load is 10kΩ. Furthermore, a handy equation to estimate the maximum power efficiency of the proposed converter is provided by theoretical analysis.

Keywords

DC-DC power convertors; electric charge; energy conservation; switched capacitor networks; SPICE; electric charge; maximum power efficiency; power saving technique; resistance 10 kohm; ring-type DC-DC converter; simulation program with integrated circuit emphasis simulation; step-up-step-down SC DC-DC converter; stray parasitic capacitance; switched capacitor; Capacitors; Clocks; Integrated circuit modeling; Parasitic capacitance; SPICE; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2013 10th International Conference on

Conference_Location

Krabi

Print_ISBN

978-1-4799-0546-1

Type

conf

DOI

10.1109/ECTICon.2013.6559516

Filename

6559516