Within any electrical device, there are active and passive components. The inductor, which can also be called a coil, is a passive component because it does not change the power or amplify the signal.
There is a range of readily available off the shelf types of inductors on the market. These range from lead or bead types of inductors through to toroidal inductors and ferrite core inductors.
All of these will include a core, which is typically a ferromagnetic material or plastic, surrounded by a wire coil known as a winding. There are a variety of winding patterns and design options to provide the specific inductance required throughout the circuit and current.
When to Consider Custom
Even with a wide variety of off the shelf options, there is still the need for custom inductors. This is most commonly the issue with custom types of electronic components that may be a one of a kind design. The need for additional power and efficiency in the next generation products continues to drive the need.
Additionally, prototypes for new electronic devices and applications will often require the development of custom inductors. This is particularly true when manufacturers are trying to downsize systems or boost power in a small device. Even electrical circuits in new vehicles may require a specialized, made to order type of inductor.
Options Available
With any types of custom inductors, there will be options for the design and materials. The key is to work with a prototype and manufacturing company that specializes in magnetic components for Original Equipment Manufacturers. By choosing these companies, you will have experience and expertise on the job.
Choices between types of cores, winding patterns and wire, the size of the inductor and the specific requirements of the system. Each of these factors will have a bearing on what materials and designs are selected, with a corresponding benefit to the efficiency of the inductor within the application.
