Inductor and Chokes

chokes are based on high-permeability toroid core (ferrite) with two symmetrical windings, so the magnetic fields are cancelling each other. They are mainly used in devices with switched-mode power supplies.

For rod core/drum core inductors, the wire is wound directly on the core. The core shape is typically cylindrical or cylindrical with end caps.

(PFC) solution for any specific application. PFC chokes are made of core with one main winding and an auxiliary winding, if needed.