Portable cell-phone charger

Portable cell-phone charger
While voyaging charging of portable battery is incredible issue since power supply source is definitely not for the most part open. Here is a straightforward venture utilizing extremely regular hardware segments for charging portable battery utilizing AA cells. Circuit portrayals of versatile cellphone charger The primary part of the circuit portable cellphone charger is clock IC NE555, used to charge and screen the voltage level. IC1 gain power voltage to stick 5 by zener diode ZD1 Limit stick 6 what's more, trigger stick 2 is provided with a voltage set by VR1 and VR2 individually. 

The trigger stick 2 of IC1 is beneath 1/3VCC when release battery is associated with the circuit accordingly flip-tumble of IC1 is changed on to take yield stick 3 high. The procedure is switched when battery is completely charged of charged battery is associated. Here transistor T1 used to upgrade the charging current from yield stick 3 of IC1. Change potentiometer VR1 and VR2 according to require. 

Resistors (all ¼-watt, ± 5% Carbon) R1 = 390 Ω; R2 = 680 Ω; R3 = 39 Ω/1W; R4 = 27 Kω; R5 = 47 Kω; R6 = 3.3 Kω; R7 = 100 Ω/1W; VR1, VR2 = 20 Kω
C1 = 0.001 μF (earthenware circle)
 C2 = 0.01 μF (earthenware circle)
C3 = 4.7 μF/25V (Electrolytic )
IC1 = NE555 clock IC T1 = SL100 or any Medium power universally useful NPN transistor like: 2N4922 , 2N4921,2N4238, FCX1053A ZD1 = 5.6 V/1W LED1 Incidental SW1 = On/off switch 1.5V*8 AA cells Portable connector


Popular Posts

Eye Directive Wheelchair

Short Speech on Independence Day in Malayalam