Power regulation method based on USB Type-C interface circuit, circuit thereof and electronic equipment

Abstract

The invention relates to the technical field of USB interfaces, and discloses a power regulation method based on a USB Type-C interface circuit, a circuit thereof and electronic equipment. The methodcomprises the following steps: obtaining the Nth actual output power applied to the target Type-C port in the at least one Type-C port, wherein N is a positive integer; acquiring the total power of the Nth actual output; wherein the total actual output power of each time is the sum of the actual output power of all Type-C ports; and finally, adjusting the (N + 1) th broadcast power according to the Nth actual output power, the Nth actual output total power and the preset maximum power, wherein each broadcast power is the output power broadcast to the load by the USB Type-C interface circuit through the target Type-C port. Therefore, by adoption of the method, when at least one Type-C port is connected with the load, the broadcast power corresponding to each Type-C port can be flexibly adjusted, so that the purpose of maximizing the use power is achieved.

Description

technical field [0001] The invention relates to the technical field of USB interface, in particular to a power adjustment method based on a USB Type-C interface circuit, its circuit, and electronic equipment. Background technique [0002] The USB Type-C is referred to as Type-C for short, and it is a hardware interface specification of a Universal Serial Bus (Universal Serial Bus, USB). Compared with the traditional USB interface, the Type-C interface adopts a thinner design, supports faster transmission speed and stronger power transmission. The Type-C interface supports double-sided insertion, which officially solves the worldwide problem of "USB is always inaccurate", and can be plugged in at will. At the same time, the USB data cable used with it can also transmit higher-speed data and greater power. [0003] In order to support the maximum output power of 100W, the matching USB Power Delivery Specification (USB PD) was also launched later. The USB PD protocol stipula...

AI Technical Summary

Problems solved by technology

[0004] Each of the traditional multi-USB Type-C interface circuits has an independent DC converter and an independent USB controller. Each USB controller is electrically connected to the corresponding DC converter, and each DC converter is electrically connected to the corresponding Type-C C port, multiple DC converters may share an input voltage, and the USB controller adjusts the power output by controlling the corresponding DC converter, so as to output the corresponding power at the corresponding Type-C port. In order to realize the simultaneous use of multiple channels, In the case of a certain input power supply, each type C output can only be allocated to a small power value, which affects the efficiency of the entire power supply, and cannot dynamically control the power of each of the multiple Type-C ports output, thus failing to maximize the power usage of the power

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