Outdoor Power Bank PCBA

The PCBA of the outdoor power bank is the core part of the outdoor power bank, which is mainly responsible for battery management, charge and discharge control, and connection with external devices. The following is its introduction:

Hardware composition

• Main control chip: It is the core of PCBA, usually using a dedicated power management chip, which is responsible for controlling the entire power bank workflow, including charging, discharging, power monitoring, overvoltage protection, overcurrent protection and other functions.

• Battery management circuit: It is mainly composed of battery protection chip and related circuits, which are used to monitor battery voltage, current and temperature and other parameters to prevent battery overcharge, over discharge and overheating, extend battery life and ensure safe use.

• Charging circuit: It includes charging interface (such as Micro-USB, Type-C, etc.) and charging control chip, which can convert the power of external power supply into voltage and current suitable for charging the power bank battery and realize fast charging function.

• Discharge circuit: It is composed of discharge control chip and output interface (such as USB-A, USB-C, etc.), which converts the power of power bank battery into voltage and current suitable for charging various electronic devices, and provides power support for mobile phones, tablets and other devices.

• Power display circuit: generally composed of LED indicator light or liquid crystal display (LCD) and its driving circuit, used to display the remaining power of the power bank, so that users can understand the power status of the power bank.

Working principle

• When using a charger to charge an outdoor power bank, the charging circuit introduces the power of the external power supply through the charging interface, and the charging control chip adjusts the charging current and voltage according to the battery status information fed back by the battery management circuit to charge the battery. During the charging process, the battery management circuit monitors the various parameters of the battery in real time. When the battery is full or abnormal, it notifies the main control chip to stop charging in time.

• When it is necessary to charge an external electronic device, the user connects the device to the output interface of the power bank through a charging cable. Under the control of the main control chip, the discharge control chip converts the battery’s power into a suitable voltage and current and outputs it to the device. At the same time, the power display circuit displays the remaining power in real time according to the battery power status.

Functional features

• Large capacity and high conversion efficiency: usually equipped with large-capacity batteries, and PCBA can achieve high charge and discharge conversion efficiency, and transfer as much battery power as possible to external devices.

• Multiple protection functions: It has multiple safety protection functions such as overvoltage protection, overcurrent protection, overheating protection, short circuit protection, etc. to ensure the safety of power banks and charging devices.

• Fast charging: It supports multiple fast charging protocols, such as PD, QC, etc., and can provide fast charging services for devices that support fast charging.

• Strong compatibility: It has rich output interfaces and is compatible with a variety of different types and brands of electronic devices to meet users’ needs for charging different devices outdoors.

Application areas

• It is mainly used in outdoor travel scenarios, such as hiking, camping, mountaineering, etc., to provide mobile charging services for users’ mobile phones, cameras, walkie-talkies and other electronic devices, to ensure that the equipment can be used normally outdoors, and to facilitate users to keep in touch with the outside world and record outdoor life. In addition, outdoor power banks can also play an important role in some emergency scenarios or places without fixed power sources.