1. D ESIGN OF D UTY -V ARIED V OLTAGE P ULSE C HARGER FOR I MPROVING L I -I ON B ATTERY -C HARGING R ESPONSE Chairman: Hung-Chi Yang Presenter: Ming-Lin Wang Adviser: Jenq-Ruey Hrong Date:2013/3/20 Liang-Rui Chen, Member, IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 56, NO. 2, FEBRUARY 2009 1

2. O UTLINE INTRODUCTION IDEAL OF DVVPCS SYSTEM DESCRIPTION DESIGN EXAMPLE EXPERIMENTAL RESULTS CONCLUSION REFERENCES 2

3. INTRODUCTION constant-current (CC) constant-voltage (CV) constant-current and constant-voltage (CC–CV) duty-fixed voltage pulse-charge strategy (DFVPCS) duty-varied voltage pulse-charge strategy (DVVPCS) 3

4. SYSTEM DESCRIPTION (a)State diagram. (b) Time sequence of the proposed DVVPC 4

5. EXPERIMENTAL RESULTS Measured average current i b verses to different duty D when (a) searching and (b) tracking algorithms are running 5

6. CONCLUSION The charge time : The charge efficiency : 6

7. REFERENCES [1] R. C. Cope and Y. Podrazhansky, “The art of battery charging,” in Proc. 14th Annu. Battery Conf. Appl. Advances, 1999, pp. 233–235. [2] H. Surmann, “Genetic optimization of a fuzzy system for charging batteries,” IEEE Trans. Ind. Electron., vol. 43, no. 5, pp. 541–548, Oct. 1996. [3] Z. Ullah, B. Burford, and S. Dillip, “Fast intelligent battery charging: Neural-fuzzy approach,” IEEE Aerosp. Electron. Syst.Mag., vol. 11, no. 6,pp. 26–34, Jun. 1996. [4] G. C. Hsieh, L. R. Chen, and K. S. Huang, “Fuzzy-controlled Li-ion battery charge system with active state-of-charge controller,” IEEE T rans.Ind. Electron., vol. 48, no. 3, pp. 585–593, Jun. 2001. [5] P. M. Hunter and A. H. Anbuky, “VRLA battery rapid charging under stress management,” IEEE Trans. Ind. Electron., vol. 50, no. 6, pp. 1229– 1237, Dec. 2003. 7