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A charging method and main device based on multiple usb-c interfaces

A technology of USB-C and charging method, which is applied in the direction of data exchange charger, secondary battery charging/discharging, current collector, etc., and can solve the problem that the charging power of the charger cannot be guaranteed.

Active Publication Date: 2019-03-08
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the master device receives power and supplies power at the same time, because the power supply power is independently agreed between the master device and the slave device, and the charging power is independently agreed between the master device and the charger, therefore, it is impossible to guarantee that the charging power of the charger can meet multiple requirements at the same time. slave device requirements

Method used

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  • A charging method and main device based on multiple usb-c interfaces
  • A charging method and main device based on multiple usb-c interfaces
  • A charging method and main device based on multiple usb-c interfaces

Examples

Experimental program
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Embodiment 1

[0044] An embodiment of the present invention provides a charging method based on multiple USB-C interfaces, see image 3 , is a schematic flowchart of Embodiment 1 provided by the embodiment of the present invention.

[0045] In step S101, the required voltage and required current of each slave device connected to the USB-C interface, and the maximum supply current of the charger are obtained.

[0046] The Type-C module at the USB-C interface of the master device performs CC communication with the Type-C module at the interface of the slave device, and each interface establishes CC communication with the slave device to obtain the required voltage and current of all slave devices. At the same time, the master device establishes CC communication with the charger to obtain the maximum supply current of the charger.

[0047] In step S102, according to the required voltage of the slave device and the required voltage of the master device, the power supply voltage of the charger an...

Embodiment 2

[0070] see Figure 7 , is a schematic flow chart of Embodiment 2 of the present invention.

[0071] In step S201, the required voltage and required current of each slave device connected to the USB-C interface, and the maximum supply current of the charger are obtained.

[0072] In step S202, according to the required voltage of the slave device and the required voltage of the master device, the power supply voltage of the charger and the slave devices compatible with the power supply voltage are determined based on the principle that the number of devices supplying power to the slave devices is the largest.

[0073] In step S203, according to the maximum supply current of the charger and the demand current of the slave equipment compatible with the supply voltage, it is judged whether the maximum supply current can meet the demand current of the slave equipment compatible with the supply voltage.

[0074] In step S204, when the maximum supply current cannot meet the demand c...

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Abstract

The invention relates to a charging method and a master device based on multiple USB-C interfaces. The method includes: obtaining the demand voltage and demand current of the slave device connected to each USB-C interface, as well as the maximum power supply current of the charger; according to the slave device The demand voltage of the device and the demand voltage of the master device determine the supply voltage of the charger and the slave device with a compatible supply voltage; based on the maximum supply current of the charger and the demand current of the slave device with a compatible supply voltage, determine whether the maximum supply current can be Meet the demand current of the slave device with a compatible supply voltage; when satisfied, the master device is controlled to accept the power provided by the charger according to the supply voltage and maximum supply current, and at the same time, the master device is controlled according to the demand current of the slave device with a compatible supply voltage and supply voltage. Provide power. The method provided by the embodiment of the present invention effectively ensures that the master device can satisfy the charging of multiple slave devices while accepting charging, and fully utilizes the power supply capability of the charger.

Description

technical field [0001] The invention relates to the technical field of charging, in particular to a charging method based on multiple USB-C interfaces and a main device. Background technique [0002] The USB Type-C interface, referred to as the USB-C interface, supports non-directional forward and reverse insertion in terms of physical structure, and supports the transmission of data and audio and video signals at the same time in terms of function. At the same time, the USB-C interface supports bidirectional transmission of power, both It can accept the power supply to charge the electronic equipment installed with this interface, and can also provide power to other external electronic equipment, and, based on the latest USB PD (USB Power Delivery,) protocol, the USB-C interface can transmit up to 100W when charging power. [0003] see figure 1 , figure 1 It is a schematic diagram of charging a single USB-C interface device. Such as figure 1 As shown, the main device 1...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H01M10/44
CPCH01M10/44H02J7/00034H02J7/00Y02E60/10
Inventor 孙学斌
Owner HISENSE VISUAL TECH CO LTD
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