<p>➀ The article introduces a frequency-dependent switch model designed for PSpice simulation, enabling accurate analysis of AC power circuits; </p><p>➁ It demonstrates the switch's operation in multiple circuit configurations (e.g., 1700Hz and 150Hz) using PSpice's Laplace-based behavioral modeling; </p><p>➂ The model supports engineers in testing and implementing frequency-sensitive switching solutions for advanced power systems.</p>