Usha Amorphous Metals Limited

Udyog Vihar, Gurugram, Haryana

Iron Based Amorphous Toroidal Choke Cores

Toroidal choke cores are manufactured with iron-based amorphous alloy Metal Ribbon. They offer a unique combination of ultra-high saturation induction, high energy storage capability and low core loss for high frequency magnetic components which are significantly smaller than conventional components.

The Nano Crystalline Cores are made from Iron based Soft magnetic material. These are derived from Crystalline Amorphous ribbon and subsequent heat treatment around 500-600 C .The typical grain size is only 10 nanometers hence the name Nano Crystalline.

There appears to be no limitation to the type of cores that can be manufactured from Nano Crystalline material: C-cores, E-cores , Uncased Toroids, Cased Toroids, Multiple cuts Gapped Toroids, etc.

Nanocrystalline metals Cores are ideally suited for diverse range of applications such as:- Frequency of operation is from 50 Hz to MHz range

Common Applications are

Switch Mode Power Supply Common Mode Choke Uninterruptible power systems Pulsed welding equipment Power inverter (e.g. solar inverter) Wind generators Frequency converter Energy Meters Current Sensors

Benefits

Nanocrystalline material has the potential as lower cost alternatives to the costly Cobalt-based Amorphous material in many applications. This is due to the excellent soft magnetic properties. Extremely Low Coercivity High Permeability Low Energy Losses High Saturation Flux Density

Toroidal Choke Cores are manufactured with Fe based Amorphous metal ribbon. The combination of Ultra High Induction, High Saturation Induction, High Energy Storage capability and low core loss for high frequency magnetic components which are significantly smaller than conventional components. Applicable at DC output inductors, Power factor correction chokes, Differential mode input chokes, Flyback Transformers.

High Precision Current Transformer Cores are manufactured with Fe based Nanocrystalline material. The core have unique combination of Moderate Saturation Induction, High Permability, Good Temperature Stability and Low Cost. Applicable for Measuring Current and Voltage Transformer having .2, .2S and .1 accuracy class.