Title :
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
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;
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
DOI :
10.1109/ECTICon.2013.6559516
