To avoid damage and maximize capacity, the voltages of the individual batteries in series connected packs should be equalized. Long term trickle charging is the traditional equalization method, but this is inconvenient for EVs and HEVs. Electronic equalizers also can be used to redistribute the charge amongst the batteries so that trickle charging is no longer necessary. A new type of high frequency electronic equalizer called the ramp converter uses soft switching techniques and a unique transformer design to minimize size and cost. Experimental results at two different power levels indicate performance similar to trickle charging but with a much shorter charging time.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A High Frequency Electronic Equalizer for EV and HEV Batteries


    Additional title:

    Sae Technical Papers


    Contributors:
    Gottwald, T. (author) / Stuart, T. (author) / Ye, Z. (author)

    Conference:

    1997 SAE Future Transportation Technology Conference and Exposition ; 1997



    Publication date :

    1997-08-06




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    A High Frequency Electronic Equalizer for EV and HEV Batteries

    Gottwald, T. / Ye, Z. / Stuart, T. et al. | British Library Conference Proceedings | 1997


    A high frequency electronic equalizer for EV and HEV batteries

    Gottwald,T. / Ye,Z. / Stuart,T. et al. | Automotive engineering | 1997


    A selective equalizer for NiMH batteries

    Hande, A. | Online Contents | 2005


    A Bilevel Equalizer for Lithium Ion Batteries

    Mubenga, Ngalula Sandrine / Stuart, Thomas A. | IEEE | 2018


    Sensitivity of a ramp equalizer for series batteries

    Ye, Z. / Stuart, T.A. | IEEE | 1998