男人在线网站-男人在线天堂-男人在线视频-男人在线播放永久-98精品国产综合久久-98精品国产自在现线拍

Contact Us

Difference Mini Air Cooling Fan and DC fans

Date: 2015-4-11   Click: 1581 Times

"Mini Air Cooling Fan" and DC fan distinction. The former AC power supply, power supply voltage alternating positive and negative, unlike the DC fan power supply voltage is fixed, we must rely on the circuit control, so that two sets of coils in turn work to produce different magnetic fields. "Mini Air Cooling Fan" because of the power frequency is fixed, so the rate of change in magnetic silicon produced is determined by the power frequency, the higher the frequency, the faster switching magnetic field, in theory, the faster speed will be like "Mini Air Cooling Fan" pole The more the number the faster the speed of the same principle. However, the frequency can not be too fast, too fast will cause activation problems.

Back to: Industry news

+86-0769-83660708

Home Product News Contact

主站蜘蛛池模板: 国产综合视频在线观看一区 | 国产美女在线免费观看 | 天堂网www天堂在线资源链接 | 欧美成人第一页 | 向日葵视频免费在线观看 | 亚洲国产婷婷香蕉久久久久久 | 欧美粗又大| 国产精品视频一区二区噜噜 | 欧美在线一区二区三区欧美 | 四虎国产精品免费久久久 | 七月丁香色婷婷综合激情 | a毛片免费全部播放完整成 a毛片免费看 | 欧美很黄视频在线观看 | 一道本高清香蕉网 | 国产一二三区视频 | 久久99精品视香蕉蕉 | 免费一级在线 | 久久久久综合给合狠狠狠 | 精品伊人久久久久网站 | 成年人免费在线看惊悚片动作片 | 欧美视频在线不卡 | 把女人弄爽特黄a大片片 | 亚洲三级网站 | 久久精品国产福利国产秒 | 99在线观看国产 | 91在线免费观看 | 亚洲视频一区二区三区四区 | 麻豆国产| 国产白嫩美女在线观看 | aa级国产女人毛片水真多 | 黑人性hd | 欧美在线中文字幕 | 国产伦精一区二区三区 | 色综合综合色综合色综合 | 亚洲国产成人精品青青草原100 | 久久精品视频久久 | 欧美精品一二区 | 国内免费自拍视频 | 91免费精品视频 | 青青青在线观看国产精品 | 青青热久免费精品视频精品 |