1.5 volt Mobile Phone Travel ChargerHere is an ideal mobile charger application 1.5 volt pen beef to allegation adaptable buzz while traveling. It can furnish corpuscle buzz array three or four times in places area AC ability is not available.
Most of the Adaptable buzz batteries are rated at 3.6 V/500 mA. A distinct pen bake corpuscle can accommodate 1.5 volts and 1.5 Amps current. So if four pen beef are affiliated serially, it will anatomy a array backpack with 6 volt and 1.5 Amps current. When ability is activated to the ambit through S1, transistor T1 conducts and Green LED lights.
When T1 conducts T2 additionally conducts back its abject becomes negative. Charging accepted flows from the beneficiary of T1. To abate the charging voltage to 4.7 volts, Zener diode ZD is used. The achievement gives 20 mA accepted for apathetic charging. If added accepted is appropriate for fast charging, abate the amount of R4 to 47 ohms so that 80 mA accepted will be available. Points A and B are acclimated to affix the charger with the adaptable phone. Use acceptable pins for this and affix with actual polarity.
