Portable charger wiring diagram. A micro b usb connects to 5v and g on the powerboost1000c via 50mm long wires. It is sufficient for slow charging of mobile phones so they can be used to charge the mobile. The micro b usb connects to the micro usb port on the qi board. The usb port see more about usb here gives dc bias from pin1 and pin4 that power supply regulated by using zener diode depends on the regulating voltage range.
Choose the zener diode as per the mobile. The usb power mobile charger circuit constructed by using zener diode 47v400mw and switching transistor sl100. Before trying this circuit take extra care on mobile battery specifications. The design is quite straight forward built on a paper phenolic pcb could be easily repaired.
Nowadays mobiles can also be charged using the usb outlet of pc. Simple circuit of a portable mobile charger. Mobile phones generally charge with 5v regulated dc supply so basically we are going to build a circuit diagram for 5v regulated dc supply from 220 ac. But even though you can get a clear overview of the mobile charger circuit from the above diagram.
Home made 20800 mah power bank phone charger fast charger how to make a powerbank duration. Be creative 273116 views. Take a moment to review the components in the circuit diagram. Usb mobile charger circuit diagram.
May 2 2012 by ashutosh bhatt. The mobile charger circuit presented in this project can give 47v of synchronized voltage for charging the phone. As usb outlets can give 5v dc and 100ma of current.