A-USBPB-2

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A USB PB-2 is a power bank designed to offer extra power and capacity to various USB and DVI portable devices, including laptops, tablets, and smartphones. This type of USB device not only helps to extend the life of your devices, but also simplifies the operation by taking advantage of advanced charging and power management technologies. This article explains the application field and working principle of the USB PB-2.

Application Field

The USB PB-2 is designed to be a universal powerbank designed to provide extra power and capacity for devices with USB, DVI, and HDMI connectors. It is highly suitable for a range of devices, including tablets, smartphones, and laptops. Additionally, it can be used to top up the charge levels of USB charging devices, such as game consoles and portable media players. The USB PB-2 is compatible with various popular charging protocols, such as Qualcomm Quick Charge 2.0, Power Delivery 2.0, and MTK Pump Express 2.0, as well as USB-C and micro USB.

Working Principle

The USB PB-2 is built with a microcontroller, a battery, a power management unit, and a LED indicator. When the power bank is connected to an external device, the power management unit senses the connected device and automatically adjusts the output according to the device\'s power requirements. Battery capacity is monitored and maintained by the microcontroller, and the LED indicator will alert users to the remaining capacity. Meanwhile, the current will be monitored and converted using pulse width modulation, allowing the device to operate at the optimal voltage and current.

The USB PB-2 supports multiple charging and discharging protections, such as short circuit protection, overcharge protection, over-discharge protection, and over-voltage protection. It also supports up to 3 efficiency modes, allowing users to adjust the efficiency according to their needs. The USB PB-2 also supports multiple input and output modes, including USB-C/USB-A/micro USB and DVI/HDMI.

Conclusion

The USB PB-2 is a multi-function power bank designed to provide extra power and capacity for USB, DVI, and HDMI devices. It is highly suitable for a range of devices, including tablets, smartphones, and laptops. It is also capable of charging a variety of USB charging devices, such as game consoles and portable media players. Additionally, it is built with safety features, such as short circuit protection, overcharge protection, over-discharge protection, and over-voltage protection. Furthermore, it supports up to 3 efficiency modes and multiple input and output modes.

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