Mobile Battery Bank Circuit Diagram

Below is the circuit diagram for our power bank.

Mobile battery bank circuit diagram.

In the regulator circuit for this power bank i use 5v regulator ic l78s05 this is not a normal lm7805ct ic but pin out and looking size is same as any 78xx regulator ic. This article will help you to design a portable cost effective power bank with variable dc output hence you can change the output voltage range depends on your phone battery specification. As can be seen in the above design a charger circuit charges a 3 7v cell once the charging is completed the 3 7v cell box is carried by the user while traveling and whenever the user s cellphone battery goes down he simply connects this 3 7v cell pack with his cellphone for topping it up quickly. The mobile charger circuit presented in this project can give 4 7v of synchronized voltage wysiwyg imageupload for charging the phone.

As we can see its fairly easy to make a power bank with li ion battery tp4056 module and a boost converter. Usb stands for universal serial port. But if you use lm7805ct then the output current is not more than 1 a in this case your mobile battery take more hour to get charge. Power bank modules connection diagram it contains three stages first one is tp4056 li.

3 7v power bank mobile battery charger circuit diagram 3 7v power solar battery charger circuit with voltage regulator wireless power transfer circuit wireless mobile charger 40000mah lipo power bank 10 steps with pictures what is a power bank charger what is the mechanism of its working. Power bank circuit diagram. It is sufficient for slow charging of mobile phones so they can be used to charge the mobile phones. 3v to 5v boost converter with 1a current control.

As usb outlets can give 5v dc and 100ma of current. Nowadays mobiles can also be charged using the usb outlet of pc.