<span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">In this paper the influence of core parameters in Frequency Response Analysis is analyzed through the equivalent circuit impedance <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">matrix of the transformer winding; the parameters of the circuit have been computed using the Finite Element Method. In order to <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">appreciate the behavior of the iron core in comparison to the air core, the frequency dependence of resonances is calculated to <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">show how the air core only influences the results at low frequencies. The core is modeled using a complex permeability, and the <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">parameters of conductivity and permeability are varied to show their influence in the resonances, which turned out to be negligible. <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">In order to explain this behavior, the eigenvalues of the inverse impedance matrix are calculated showing that they are similar for <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">different values of conductivity and permeability. Finally, the magnetic flux inside and outside the core and its influence in the <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">frequency response is studied.</span></span></span></span></span></span></span><br style="font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" /><br class="Apple-interchange-newline" /></span>
An ultrafast temperature response analysis of a MEMS-based igniter using the finite-element method
