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Evaluating inductor performance
at application conditions

Testing a high power inductor to ensure full function across the range of drive levels and waveforms it will see in its application is a tall order. In fact, it is beyond the reach of most power electronics labs. Impedance bridges and network analyzers cannot work with high enough power. Standard power meters cannot drive with arbitrary waveforms, frequencies and duty cycles, nor are power meters easily able to handle low permeability inductor core materials. Often the only choice is to put a new magnetic into the application circuit and see what happens. But we offer a better way.

SES Inductor Testing Tool

Spang Engineered Solutions operates an in-house, custom-built test bed for a complete range of inductor testing. Our ability to rigorously test your specialty inductor will give you confidence that your design works at all conditions. Effective testing can save development time and minimize costly design revisions, as well as help to make sure the products you deliver lead to satisfied customers. 

The typical ouputs of our unique inductor testing tool are:

  • Temperature rise ? on the surface and with embedded thermocouples.
  • Total losses ? copper losses plus AC core loss in the magnetic at each specific operating condition.
  • Waveform analysis ? current and voltage, as well as inductance and calculated losses through each cycle.

Development Testing

In addition to the high power test bed, our engineers have all the standard power electronics tools, plus access to the extensive lab equipment of Magnetics and Spang Power Electronics. Not only electronics meters, but temperature cabinets, materials analysis equipment, and machine shops.

Production Testing

At all locations Spang Engineered Solutions executes testing for process control and QA checking, as detailed on the specification for each part. This includes inductance, inductance under load, quality factor, DCR, frequency response, dielectric strength (voltage breakdown), mechanical conformance, and any special requirements. Production test data is logged in control plans that are integral to the manufacturing computer system, and visible to our engineers whenever needed.