A motor drive circuit consisting of the bridge and the interface unit is described. The behavior of current flow in the nonredundant bridge is shown. Failure modes in this bridge are described. In order to provide fault tolerance, a number of new designs using passive and active redundancy are presented and analyzed. An analysis of these designs is done. An interface unit for driving the high-side nFET is developed using the principles of bootstrapping. Calculations of the capacitance and resistance in this circuit are described. Finally, some test results using SPICE and some experimental results on the circuit implemented are presented.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Fault tolerant motor drives for powered wheelchairs


    Additional title:

    Fehlertolerante Antriebe für elektrisch angetriebene Krankenstühle


    Contributors:
    Prasad, R.K. (author) / Aylor, J.H. (author) / Johnson, B.W. (author)


    Publication date :

    1990


    Size :

    6 Seiten, 19 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Electric powered wheelchairs

    Ding, D. / Cooper, R.A. | Tema Archive | 2005


    Electric-powered wheelchairs

    Vasilev, N.F. / Loginov, A.L. / Tereshchin, V.A. et al. | Tema Archive | 1995




    FAULT TOLERANT PERMANENT MAGNET DC MOTOR DRIVES

    WOO JULIUS M / PRAMOD PRERIT / ISLAM MOHAMMED R | European Patent Office | 2020

    Free access