Circuit diagram of the power bank is shown in fig.
Mobile battery power bank circuit diagram.
When we need to take the mobile phone to the outdoors that no electrical outlet.
It uses a low dropout voltage high efficiency lm1086.
Turn the slide switch on.
This is power bank mobile charger circuit project.
The power banks are additional power source and it ensures the power backups when we travel or in emergency situations.
Connect the usb to micro b cable to the output of boost converter.
Red color led indicates the battery charging in this power bank circuit blue color led indicates the charge complete charging the mobile phone with this power bank.
Circuit and working for power bank.
Oct 31 2017 this power bank circuit pcb board has two main parts one is power bank battery charging circuit which is made by using tp4056 and second is dc to dc boost converter part which is made by using xl6009.
The mobile phones battery starts to get charge from the power bank.
Power bank modules connection diagram it contains three stages first one is tp4056 li.
The first module is a lithium ion battery charger and the second is a dc dc boost converter module.
This power bank circuit uses two integrated modules and a lithium ion battery.
This power bank can be used for charging smartphones.
To backup energy when need a portable mobile phone.
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.