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Wide-temperature, high-frequency, low-loss and high-permeability manganese-zinc ferrite for LED and preparation method of manganese-zinc ferrite
The invention discloses a wide-temperature, high-frequency, low-loss and high-permeability manganese-zinc ferrite for an LED. The manganese-zinc ferrite comprises Fe2O3, MnO, ZnO, polyvinyl alcohol, an auxiliary material, a binder and an additive, compared with other similar advanced indexes in the aspect of performance, the ferrite disclosed by the invention has the advantages that the power consumption at -40 to 25 DEG C is further reduced on the basis of 25-140 DEG C wide temperature, high frequency and low power consumption, meanwhile, the saturation flux density Bs is further improved, the 25 DEG C Bs is improved by 10mT compared with the conventional PC95 material, and the 100 DEG C Bs is improved by 20mT compared with the conventional PC95 material;and the Curie temperature is over230 DEG C; therefore, the DC superposition characteristic is good. The ferrite provided by the invention has lower use loss and high production qualification rate.
本发明公开了一种LED用宽温高频低损耗、高磁导率锰锌铁氧体，包括：Fe2O3、MnO、ZnO、聚乙烯醇、辅料、粘结剂和添加剂；本发明铁氧体在性能方面与其他同行先进指标相比，本发明铁氧体在25‑140℃宽温、高频低功耗基础上，‑40℃～25℃功耗进一步降低，同时饱和磁通密度Bs进一步提高，25℃Bs比常规的PC95类材料提高10mT，100℃Bs比常规类PC95材料提高20mT，居里温度达到230℃以上，因而具有良好的直流叠加特性。本发明铁氧体具有更低的使用损耗，且生产合格率高。
Wide-temperature, high-frequency, low-loss and high-permeability manganese-zinc ferrite for LED and preparation method of manganese-zinc ferrite
The invention discloses a wide-temperature, high-frequency, low-loss and high-permeability manganese-zinc ferrite for an LED. The manganese-zinc ferrite comprises Fe2O3, MnO, ZnO, polyvinyl alcohol, an auxiliary material, a binder and an additive, compared with other similar advanced indexes in the aspect of performance, the ferrite disclosed by the invention has the advantages that the power consumption at -40 to 25 DEG C is further reduced on the basis of 25-140 DEG C wide temperature, high frequency and low power consumption, meanwhile, the saturation flux density Bs is further improved, the 25 DEG C Bs is improved by 10mT compared with the conventional PC95 material, and the 100 DEG C Bs is improved by 20mT compared with the conventional PC95 material;and the Curie temperature is over230 DEG C; therefore, the DC superposition characteristic is good. The ferrite provided by the invention has lower use loss and high production qualification rate.
本发明公开了一种LED用宽温高频低损耗、高磁导率锰锌铁氧体，包括：Fe2O3、MnO、ZnO、聚乙烯醇、辅料、粘结剂和添加剂；本发明铁氧体在性能方面与其他同行先进指标相比，本发明铁氧体在25‑140℃宽温、高频低功耗基础上，‑40℃～25℃功耗进一步降低，同时饱和磁通密度Bs进一步提高，25℃Bs比常规的PC95类材料提高10mT，100℃Bs比常规类PC95材料提高20mT，居里温度达到230℃以上，因而具有良好的直流叠加特性。本发明铁氧体具有更低的使用损耗，且生产合格率高。
Wide-temperature, high-frequency, low-loss and high-permeability manganese-zinc ferrite for LED and preparation method of manganese-zinc ferrite
一种LED用宽温高频低损耗、高磁导率锰锌铁氧体及其制备方法
WANG WENBIN (author) / CHEN JUNYE (author) / XIN BENKUI (author) / CHEN HUABIN (author) / YI YUXIANG (author) / GU SHIXIN (author)
2021-04-02
Patent
Electronic Resource
Chinese
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