Here only 3 components were used ,
Which are LM317 ,560R, 5K (variable) .
Simply adjust voltages to 8.7 V DC (for fast Charging support mobiles).
Actually in adaptive fast charger there are 2 outputs 5V & 9V .Any mobile supporting fast
charging send a single to the a small chip inside charger ,which will switch 5V to 9V to mobile Set .
