| 1:solar phone charger
2:USB jack
3:DC jack
Voltage calibrators, shock circuit, comparator and controlled circuit compose CMOS dc/dc increasing-voltage controller, charge the internal batteries 3.7v 950mah by out-power 5.5-6.2v by dc/dc or solar, then increase power from 3.7v to 5.5v to charge the mobile phone... |