Inductive Chokes target inverters in industrial applications.

Press Release Summary:

Available for frequencies up to 200 kHz and currents up to 1,000 A, SMP Chokes are installed at inverter's input, where they provide power recovery, and at inverter's output, where they act as filter chokes. Encapsulated design ensures that components emit only low-intensity stray fields, which allows other components to be placed in close proximity without magnetic interaction. Offered in sizes from 36-300 mm diameter, RoHS-compliant chokes operate up to 180°C.

Original Press Release:

Inductive Components for Inverters in Industrial Applications

Graben-Neudorf, Germany- SMP introduces inductive components for inverters in industrial applications. The components are low-loss, have good EMC characteristics and a space-efficient design.

The inductive components are installed both at the inverter's input, where they provide power recovery, and at the inverter's output, where they act as filter chokes. Because of their space-saving design and low-noise operation, SMP's chokes are also used in inverters' internal DC links, as both single and common-mode chokes.

The components' cores consist of powder composites with low magnetostriction, which SMP specifically engineers for each application. With their low eddy current and hysteresis losses, the materials contribute to the components' exceptional efficiency. Their encapsulated design ensures that the components emit only low-intensity stray fields - another requirement in solar power inverters - which allows other components to be placed in close proximity to the choke without running a risk of magnetic interaction with the choke. With their compact design, SMP's chokes occupy 25 percent less space than conventional components.

The chokes can be produced for frequencies of up to 200 kHz and currents of up to 1000 amperes. Their sizes range from 36 mm to 300 mm diameter and their weight from 50 g to 130 kg. Depending on the application, degrees of protection from IP00 to IP66 are available. The chokes can be used in a temperature range up to 180 degrees Celsius. All components are RoHS- and REACH-compliant and the materials used are UL-listed.
Beside adjustable frequency drives for industrial applications, SMP's inductive components are used in inverters for wind turbines and photovoltaic installations, in railway and medical engineering as well as in drives and power electronics.

Company information:

SMP Sintermetalle Prometheus GmbH & Co KG develops and manufactures inductive components and magnetically soft materials, cores and mouldings. Based in Graben-Neudorf near Karlsruhe, Germany, the company was founded in 1982 by Vasilios Gemenetzis and today employs about 250 people. Research and development have been key aspects of the company's philosophy ever since its foundation. SMP's product range includes low-loss inductive custom components based on in-house-developed powder composites, such as filter, commutating, step-up converter, power recovery and single-conductor chokes. Many of its products are used in photovoltaic systems and wind turbines. Further applications include railway, medical and drive engineering and power electronics. SMP has become one of the key global suppliers of magnetically soft materials for industrial applications, serving customers throughout the world.

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