Nanocrystalline cores for High Frequency Power Transformers

高频大功率变压器用纳米晶磁芯具有高磁感应强度，高导磁率，低损耗，低磁致伸缩系数以及良好的 温度稳定性等优点。广泛应用于高频

大功率开关电源主变压器，适于用单极，推挽，半桥，全桥等多种电 路形式，推荐使用半桥及全桥电路，以发挥纳米晶磁芯的最佳能。

变压器的主要要求磁芯材料高饱和磁感应强度及低损耗，纳米晶磁芯具备这两种优点，使用纳米晶磁 芯的变压器体积小，高效率，低损耗，

低温升及具有良好的温度稳定性。

Nanocrystalline cores for high frequency and high power transformers have high saturation flux density, high permeability, low core

 loss, low saturation magnetostriction and good temperature stability. Widely used as main transformer cores for uni-polar, push-pull

 or bi-polar type high frequency and high power switched mode power supply.

High saturation flux density and low core loss are the primary demands of a transformer, and nanocrystalline core has the  both

properties.  Transformers with nanocrystalline cores have features of small size, high efficiency, low loss, low temperature rise and

excellent temperature stability.

应用/Applications

 高频大功率开关电源 High frequency and high power switched mode power supply

 激光电源 Laser power supply

 逆变焊机 Inverter welding machine

 电镀电源 Electrical plating power supply

 中频及高频感应加热设备 Medium and high frequency heating power supply

 X 光电源 X-ray power supply

 IGBT 逆变器 IGBT Inverter

 通信电源 Communication power supplies

特性/ Characteristics

 高饱和磁感应强度 - 减小变压器体积/High saturation flux density - reducing volume of transformer

 高导磁率及低矫顽力- 提高效率，减小磁化电流，减少铜损/High permeability and low coercivity -- improving efficiency and

reducing magnetized current and reducing copper loss

 低损耗 - 提高效率，节能/Low core loss - increasing efficiency and reducing power consumption

 温度稳定性好 - 可连续工作于120℃/Excellent thermal stability - continuous working at up to 120℃

 低磁致伸缩系数 - 低噪声/Low magnetostriction - low audible noise compared to other materials

纳米晶磁芯与铁氧体磁芯的对比/Comparison: nanocrystalline cores vs. ferrite cores

规格表/Specifications

高频大功率变压器用纳米晶磁芯/Nanocrystalline Cores for High Frequency Power Transformers