Fast moving power supply is a portable power supply that can quickly charge electronic devices, mainly composed of lithium batteries, controllers, inverters, and other components. It is characterized by supporting fast charging protocol, which can fully charge the device or charge a large amount of electricity in a short time, improving charging efficiency and convenience.

The working principle of a fast moving power supply is as follows:

1. Lithium battery converts Chemical energy into electric energy. Lithium battery is a rechargeable battery that uses lithium as the positive and negative electrode material. It has advantages such as high energy density, low self discharge rate, and long lifespan. When a lithium battery is discharged, the lithium ions from the positive electrode will migrate to the negative electrode through the electrolyte, react with the negative electrode material, release electrons, and form direct current. When a lithium battery is charged, the reverse is also true.

2. The controller regulates and protects direct current. The controller is an intelligent circuit board that can automatically adjust the voltage and current of the direct current output from the lithium battery according to the status and needs of the device, in order to adapt to different fast charging protocols. At the same time, the controller can also monitor the temperature, pressure, capacity and other parameters of the lithium battery to prevent overcharging or discharging, and protect the lifespan and safety of the lithium battery.

3. The inverter converts direct current into alternating current or other forms of direct current. An inverter is a device that converts direct current into alternating current or other forms of direct current. It can output appropriate alternating current or direct current according to the input requirements of different devices. For example, some devices require 220V AC power, while others require 5V or 12V DC power. The inverter can be output to the device for use through a USB interface or other adapter.

There are several fast charging protocols supported by fast mobile power sources:

1. QC (Quick Charge). QC is a fast charging protocol launched by Qualcomm, which can improve charging efficiency by increasing the charging voltage. At present, it has developed to the fourth generation (QC4+), which can support a maximum power output of 27W and can reach specifications of 20V/1.35A or 9V/3A.

2. PD (Power Delivery). PD is a fast charging protocol launched by USB organization, which can improve charging efficiency by increasing charging voltage or current. At present, it has developed to the third generation (PD3.0), which can support a maximum power output of 100W and can reach specifications of 20V/5A or 5V/20A.

3. FCP (Fast Charge Protocol). FCP is a fast charging protocol launched by Huawei. It can improve the charging efficiency by increasing the charging voltage. At present, it has developed to the second generation (FCP2.0), which can support a maximum power output of 40W and can reach specifications of 10V/4A or 5V/8A.

In short, fast mobile power is a portable power supply that can quickly charge devices. It improves charging efficiency and convenience by supporting different fast charging protocols. Consumers should pay attention to matching the fast charging protocol supported by their devices when choosing to ensure charging efficiency and safety.