Bobbin core inductors, coils, and chokes are types of inductive components that utilize a bobbin-shaped core for winding the wire. The bobbin core is typically made from materials such as ferrite or ...

They need good quality inductors with a values in the millihenries, to use in loudspeaker crossover networks. [Homemade Audio] takes us through their manufacturing process for these coils ...

The inductors’ low DCR and high current handling are results of their flat wire coil, which directly terminates and forms the leads of the inductor, eliminating the need for a lead frame.

PCB inductors are a subject that has appeared here ... but when for example creating a circular array of coils for an electric motor there’s a need for more complex shapes.