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You can use a USB cable to power the computer. Do you believe it?
Apr 14, 2018

In general, we are accustomed to using USB data lines to charge small electronic devices such as mobile phones, MP3s, and tablet computers. Various accessories and mobile devices can also use USB data cables to connect mobile power supplies, computers, and other devices. Data cable manufacturers also say that even Many new wall outlets and wiring boards have added USB interfaces. This trend means that the USB interface is no longer a simple data interface, but has gradually become a composite functional interface.

According to data cable manufacturers, the USB interface has become an indispensable interface in everyday life. The charging of mobile phones, tablet computers, and players cannot be separated from it. But have you ever thought of using a USB cable to power laptops? The latest USB power transfer standard will make this vision a reality.

The new USB power transfer standard will consist of a power supply, a power sink, a device policy manager, a source port, and a dissipator port. The power supply is the transmit power side, and the power dissipater is the receive power side. The port corresponding to the name also sends and receives power, and this is controlled by the device policy manager. It is like the brain of the entire system, controlling the power input and output of the device.

When all USB interfaces are powered by new power transmission standards, we no longer need other charging interfaces, and we don't need to use heavy and large power supplies to power the computers. As long as there are USB data lines, each USB port can be Charge the computer itself or other device.

However, at present, we cannot directly connect the high-power USB data cable to the old interface. Only the upgraded interface supports high-power power transmission. Power transmission can carry out full-duplex transmissions, that is, devices at both ends can simultaneously transmit data in both directions, and backward compatible with the original transmission standard.

For a thin USB data line to transmit 100 watts of power, we must consider its security. Therefore, the new standard will also intelligently detect each terminal of the data line and equipment to determine whether it can support 100 watts. Power transmission. In other words, cheap USB data cables purchased at overpasses or online may not pass the test. So if you want to use a convenient USB power supply, you should still purchase a regular data cable to be safe.


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