国产一级淫一区二区波多野结衣_日韩无码免费一级片_国产日韩欧美主播视频在线播放_乱伦无码免费综合_成全视频高清免费观看_国产三级成人第一_久久亚洲aⅴ永久无码精品_电影免费在线观看日本_人妻内谢精中文字幕_天堂亚洲欧美在线中文

Contact Us

220V Cooling Fan overall layout

Date: 2015-5-15   Click: 1493 Times

"220V Cooling Fan" 220V mains voltage through the transformer will become after the AC voltage of 15V, after rectifier circuit into a DC voltage of about plus or minus 15V. -15V Voltage to the buffer amplifier integrated amplifier to provide a negative voltage. "220V Cooling Fan" + 15V DC voltage by five after V into a stable 5V voltage regulator microcontroller and D / A digital-analog converter IC provides operating voltage, when the power is turned on 89C51 is reset voltage reset, the internal start execution of the program, and the corresponding output voltage. "220V Cooling Fan" switch button, press a button next machine in standby mode. Power no voltage output, press any key to boot.

Back to: Industry news

+86-0769-83660708

Home Product News Contact