Sharif University of Technology Scientia Iranica 1026-3098 29 4 2022 08 01 The comparative analysis of AC- flux and DC-flux resolvers 2007 2013 21935 10.24200/sci.2020.55469.4236 EN M. Bahari Department of Electrical Engineering, Sharif University of Technology, Tehran, Iran Z. Nasiri-Gheidari Department of Electrical Engineering, Sharif University of Technology, Tehran, Iran 0000-0003-0744-1442 Journal Article 2020 02 19 Resolver, as an electromagnetic sensor, is widely used in many industrial applications. It can detect the position of the rotary part of the electric machines precisely. In commercial resolvers, the excitation winding is connected to the high frequency (HF) AC source. The amplitude-modulated voltages induced in the signal windings need to be demodulated in order to calculate the envelope of the output signals and accordingly detect the position. On the other hand, in PM-resolver, signal windings replaced by Hall-effect sensors to measure the DC magnetic flux which is produced by permanent magnets. In this study, the performance of both AC and DC flux resolvers is investigated under different circumstances. All the simulations are done by the time-stepping finite element method (TSFEM). https://scientiairanica.sharif.edu/article_21935_0187b02f2a38ed2b5efe8a45d9b9803b.pdf