汽车电池充电器电路

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1、汽车电池充电器电路(CarBatteryCharger)作者：佚名  来源：本站整理  发布时间：2009-12-299:03:26  [收藏][评论]汽车电池充电器电路(CarBatteryCharger)Thischargerwillquicklyandeasilychargemostanyleadacidbattery.Thechargerdeliversfullcurrentuntilthecurrentdrawnbythebatteryfallsto150mA.Atthistime,alowervol

2、tageisappliedtofinishoffandkeepfromovercharging.Whenthebatteryisfullycharged,thecircuitswitchesoffandlightsaLED,tellingyouthatthecyclehasfinished.SchematicPartsPart TotalQty. Description Substitutions R1 1 500Ohm1/4WResistor  R2 1 3K1/4WResistor  R3 1 1K1/4W

3、Resistor  R4 1 15Ohm1/4WResistor  R5 1 230Ohm1/4WResistor  R6 1 15K1/4WResistor  R7 1 0.2Ohm10WResistor  C1 1 0.1uF25VCeramicCapacitor  C2 1 1uF25VElectrolyticCapacitor  C3 1 1000pF25VCeramicCapacitor  D1 1 1N457Diode  Q1 1 2N2905PNPTransistor  U1 1 LM350Reg

4、ulator  U2 1 LM301AOpAmp  S1 1 NormallyOpenPushButtonSwitch  MISC 1 Wire,Board,HeatsinkForU1,Case,BindingPostsorAlligatorClipsForOutput Notes1.Thecircuitwasmeanttobepoweredbyapowersupply,whichiswhythereisnotransformer,rectifier,orfiltercapacitorsontheschemat

5、ic.Thereisnoreasonwhyyoucannotaddthese.2.AheatsinkwillbeneededforU1.3.Tousethecircuit,hookituptoapowersupply/plugitin.Then,connectthebatterytobechargedtotheoutputterminals.AllyouhavetodonowispushS1(the"Start"switch),andwaitforthecircuittofinish.4.Ifyouwantto

6、usethechargerwithouthavingtoprovideanexternalpowersupply,usethefollowingcircuit.Part TotalQty. Description Substitutions C1 1 6800uF25VElectrolyticCapcitor  T1 1 3A15VTransformer BR1 1 5A50VBridgeRectifier 10A50VBridgeRectifier S1 1 5ASPSTSwitch F1 1 4A250VF

7、use5.Thefirsttimeyouusethecircuit,youshouldcheckuponiteveryonceandawhiletomakesurethatitisworkingproperlyandthebatteryisnotbeingovercharged.