• A Coupled Vector-scalar Potential Method For Permanent Magnet Modeling in Large-scale 3d-Fe Magnetic Field Computations 

      Alhamadi, M.A.; Demerdash, N.A. ( IEEE , 1993 , Conference Paper)
      This paper introduces a magnetic scalar potential (MSP) formulation of permanent magnet (PM) modeling. This formulation is suited for use in coupled (combined) vector-scalar magnetic potential (CMVP-MSP) 3D-FE algorithms ...
    • A New Low Cost Linear Resolver Converter 

      Ben-Brahim, L.; Benammar, M.; Alhamadi, M.A.; Al-Emadi, N.; Al-Hitmi, M.A. ( IEEE , 2008 , Article)
      A new low cost converter topology is proposed for sinusoidal position encoders. The converter enables determination of the angle from the sine and cosine signals of the encoder. When used with resolvers, the implementation ...
    • An open-loop technique for angle determination from position encoders 

      Benammar, M.; Ben-Brahim, L.; Alhamadi, M.A.; Al-Emadi, N.; Al-Hitmi, M. ( IEEE , 2008 , Conference Paper)
      The paper presents a novel technique for the determination of the angle from low-frequency quadrature cosinusoidal signals produced, for example, by position sensors. In the presented scheme applied to a resolver, the ...
    • A Resolver Angle Estimator Based on Its Excitation Signal 

      Ben-Brahim, L.; Benammar, M.; Alhamadi, M.A. ( IEEE , 2009 , Article)
      A resolver generates a pair of signals proportional to the sine and cosine of the angular position of its shaft. A new low-cost method for converting the amplitudes of these sine/cosine transducer signals into a measure ...
    • A resolver converter based upon a novel open-Loop Technique 

      Benammar, M.; Ben-Brahim, L.; Alhamadi, M.A.; Al-Emadi, N.; Al-Hitmi, M. ( IEEE , 2008 , Conference Paper)
      The paper presents a novel technique for the determination of the angle from slowly-varying quadrature co-sinusoidal signals produced, for example, by position sensors. In the presented scheme applied to a resolver, the ...