魚缸水泵自動開?？刂齐娐?

2016-11-18 09:40
關鍵詞： 控制電路 電路 水泵
魚缸水泵自動開?？刂齐娐? src="http://files.chinaaet.com/dianlutu/69/6469-1.jpg" style="cursor:hand" border=0> 如圖所示為魚缸水泵自動開?？刂齐娐?。它采用兩只555時基電路組成。其外圍電路具有相似的結構，通過交連電容C5、C3形成閉環(huán)。該裝置運行有兩個狀態(tài)：即工作狀態(tài)和間歇狀態(tài)。為了保證達到每次開啟電源時裝置處于工作狀態(tài)(即水泵運行狀態(tài))，在IC1的4腳有R3和C2組成的復位電路。此電路最小間歇半小時，最大間歇3h。按圖中R10給出的數值，水泵工作時間為25min～30min?？筛鶕枰淖兤渥柚档拇笮?，自行確定工作時間。 元器件選擇：C3、C5須選用無極性電容。K1用單刀6位波段開關。其他元器件選用如圖所示。 </div> </div><!--//end of 內容詳細--> </div> <!--//end of mid-banner 2--> <div id="4oyq4qg" class="box borderless"> <div id="o2qywe6" class="bullhorn-text"> <a href="http://theprogrammingfactory.com/tt/uq6FFv" target="_blank" rel="nofollow">何為現代數字城市？</a> <a href="http://theprogrammingfactory.com/tt/ryuYV3" target="_blank" rel="nofollow">AET陪你走進工業(yè)以太網</a> <a href="http://theprogrammingfactory.com/tt/ye2IBf" target="_blank" rel="nofollow">點擊進入憶阻器測試專題</a> <a href="http://theprogrammingfactory.com/tt/buIvam" target="_blank" rel="nofollow">進入訂閱《網絡安全與數據治理》雜志</a> </div> </div> <div id="k2aqg4g" class="row 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