A mathematical model based on d-q axis theory and dynamic performance characteristic of brushless resolvers is discussed in this paper. The impact of rotor eccentricity on the accuracy of position in precise applications is investigated. In particular, the model takes the stator currents of brushless resolver into account. The proposed model is used to compute the dynamic and steady state e...

With the increase of complexity of circuits, guaranteeing the correctness of design becomes extremely important. A new equivalence checking method is presented in this paper for the verifications of combinational circuits; the method uses the chaotic pattern simulation to find a lot of equivalent nodes, which results in that the scale of the composite circuit is reduced. The equivalence checkin...

— This paper presents a magnetic circuit modeling of closed loop Hall-effect current sensors based on a magnetic equivalent circuit which could be simulated with a circuit type simulator software (PSPICE model). First, the principle of measurement of the closed loop Hall-effect current sensors is presented, Then, the magnetic equivalent circuit (MEC) modeling justified by the engineers' model n...

In this paper, a broadband circuit model of a potential transformer (PT) based on fractional calculus and circuit augmentation method is proposed to improve the high frequency characteristic while providing physical significance of existing traditional equivalent circuit model with simple structure. In order to reflect the characteristics of the hysteresis of the iron core roundly, a fractional...