在线观看的av网站|亚洲欧美精品午睡沙发|国内久久婷婷精品人双人|天天躁恨恨躁夜躁2024|成人3D动漫一区在线播放|香蕉精品视频一区二区三区|久久精品国产欧美日韩99热|亚洲色欲一区二区三区在线观看

December 24(Tuesday) , 2024

Customer / 客戶服務(wù)

username:
password:

Power Professional D

PositionHome > Customer > Power Professional D

Transformers

發(fā)布時間: 2010/02/23 人氣 :1644
·Transformers
It is a device which make use of the principle of electromagnetic induction to change the AC voltage, the main component is the primary coil, secondary coil and core . In the electrical equipment and radio circuit, it commonly be used for lifting voltage, impedance matching, security isolation. The defects of transformer are as follows, firstly, measuring terminals must input alternating current or digital square wave, cannot use the DC to avoid failure. Secondly, when supply a variety of power for the load ,the volume larger and the weight increase. Thirdly, the heat-dissipation problem of itself. Fourthly, increase the cost of other peripheral circuits. Therefore, using transformers can be diversified, but on the competitiveness of their products, sometimes we have to consider the problems arising from the negative.

 

?