The Computer Simulation for the Speaker Magnetic Circuit

Ansys finite element software was used for the calculation of speaker magnetic circuit. The calculation for both inner- and outer-magnet type circuit indicated that for the same gap magnetic-field, less volume of magnet is needed and leak field is reduced for the inner-magnet circuit. So the simulation can provide not only the theoretical basis for the peaker magnetic-circuit’s calculation and design, but also a calculation method for further optimum design of speaker magnetic circuit.