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Multifunction Charger Four

2017-08-19 03:18  
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The multifunction charger introduced in the example takes advantage of switching power circuit and microprocessor (singlechip)control circuit with overcurrent and overvoltage protection functions.It can charge nickel-hydrogen and Lithium-ion rechargeable batteries.Circuit's Work PrincipleThis charger is composed of mains switch,S1,switching power circuit,control circuit,charge circuit and discharge circuit and it is showed as the picture 5-66.The switching power circuit consists of switch oscillation IC ,IC1,field effect transistor,VF,induction coil,L1,commutation diode,VD1-VD3,LED,VL1-VL3,control button,S2,quartz tuning folks,BC and surrounding resistor-capacitor unit.