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什么是數(shù)字化轉(zhuǎn)型？《電子技術(shù)應(yīng)用》特約專(zhuān)欄征稿 Wi-Fi-7第七代無(wú)線網(wǎng)絡(luò)技術(shù)專(zhuān)題電子技術(shù)應(yīng)用新基建專(zhuān)題

魚(yú)缸水泵自動(dòng)開(kāi)?？刂齐娐?

2016-11-18 09:40

關(guān)鍵詞：控制電路電路水泵

魚(yú)缸水泵自動(dòng)開(kāi)?？刂齐娐? src="http://files.chinaaet.com/dianlutu/69/6469-1.jpg" style="cursor:hand" border=0>

如圖所示為魚(yú)缸水泵自動(dòng)開(kāi)?？刂齐娐贰Ｋ捎脙芍?55時(shí)基電路組成。其外圍電路具有相似的結(jié)構(gòu)，通過(guò)交連電容C5、C3形成閉環(huán)。該裝置運(yùn)行有兩個(gè)狀態(tài)：即工作狀態(tài)和間歇狀態(tài)。為了保證達(dá)到每次開(kāi)啟電源時(shí)裝置處于工作狀態(tài)(即水泵運(yùn)行狀態(tài))，在IC1的4腳有R3和C2組成的復(fù)位電路。此電路最小間歇半小時(shí)，最大間歇3h。按圖中R10給出的數(shù)值，水泵工作時(shí)間為25min～30min。可根據(jù)需要改變其阻值的大小，自行確定工作時(shí)間。

元器件選擇：C3、C5須選用無(wú)極性電容。K1用單刀6位波段開(kāi)關(guān)。其他元器件選用如圖所示。

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