This is why highfrequency transformers often have an air core.
这就是为什么高频变压器经常有空气的核心。
2
The world's only manufacturer who complete master the core technology of High-end four-quadrant high voltage variable frequency.
荣信公司是国内外唯一掌握高端四象限中压变频技术的厂家。
3
The research of the high initial permeability (6000 ~ 20000) ferrite and the frequency dependence of inductance of the ferrite transformer made by high permeability ferrite core are presented.