A power supply method and power supply device, and a charging method and electronic device

Abstract

The invention discloses power supply method and device and a charging method and an electronic device. The power supply method is applied to the power supply device with a first data transmission port. The method comprises the following steps: detecting whether a first voltage signal is received by the first data transmission port when the power supply voltage of the power supply device is the first power supply voltage and when the first data transmission port is connected with a first device; determining whether the first voltage value of the first voltage signal is equal to the first voltage switching value when the first voltage signal is received by the first data transmission port; regulating the power supply voltage value from the first power supply voltage to the second power supply voltage value which is different from the first power supply voltage value when the first voltage value is equal to the first voltage switching value, so as to enable the power supply device to supply power to the first device.

Description

technical field [0001] The present application belongs to the field of electronic technology, and in particular relates to a power supply method and power supply equipment, and a charging method and electronic equipment. Background technique [0002] In order to improve users' experience with electronic devices, the design of notebooks has become thinner and thinner, and the design of adapters has also been continuously improved. In the prior art, if a USB PD solution (USB PowerDelivery, Universal Serial Bus Power Delivery) is used between the electronic device and the adapter, the adapter can supply power to various electronic devices, such as mobile phones, notebook computers, and so on. [0003] In the USB PD solution, it is necessary to set up a communication chip for the adapter and the electronic device respectively. An EPROM (Erasable and Programmable Read-Only Memory) is integrated in each of the two communication chips, and a Verify the password. When the adapter i...

AI Technical Summary

Problems solved by technology

[0008] Embodiments of the present invention provide a power supply method, power supply equipment, and a charging method and electronic equipment, which are used to solve the problem of adding a communication chip to the adapter and electronic equipment when using the USB PD solution in the prior art, and through The conversion of the power supply voltage by means of password verification has a complicated technical problem in the conversion process of the power supply voltage. It realizes the technical effect that the conversion of the power supply voltage of the power supply equipment can be realized only by triggering the voltage signal without adding a specific chip, so that the power supply voltage Simple conversion process

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