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A method for evaluating the load capacity of a power supply and a usb type converter

A technology of load capacity and converter, applied in current collectors, instruments, circuits, etc., can solve problems such as damage to the USB interface and inability to realize intelligent charging

Active Publication Date: 2020-04-10
SHENZHEN LEGENDARY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Then, the conversion of this interface form cannot accurately inform the electrical appliance of the output capability of the power supply, so that intelligent charging cannot be realized, and the USB interface may even be damaged.

Method used

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  • A method for evaluating the load capacity of a power supply and a usb type converter
  • A method for evaluating the load capacity of a power supply and a usb type converter
  • A method for evaluating the load capacity of a power supply and a usb type converter

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Experimental program
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Embodiment 1

[0048] figure 1 It is a flow chart of a power supply load capacity evaluation method provided by Embodiment 1 of the present invention. This embodiment is used on a USB connection line and is applicable to situations where USB interface types need to be converted. This method can be performed by a USB type converter , including the following steps:

[0049] S110. After the input port and the output port of the USB connection line are respectively connected to the power source and the load, send a set value of current load capacity to the output port.

[0050] Wherein, the input port is connected to the power supply, and the output port is connected to the load, forming a circuit between the power supply and the load. The set value of the current load capacity is a preset preset value, which can be any positive number. When the input port and output port of the USB cable are respectively connected to the power supply and the load, the set value of the output current load capac...

Embodiment 2

[0070] figure 2 Shown is a schematic structural diagram of a USB type converter provided in Embodiment 2 of the present invention. This embodiment is applicable to situations where a USB interface type needs to be converted. The specific structure of the USB type converter may include:

[0071] An input port 310 for connecting with a power supply;

[0072] an output port 320 for connecting with a load;

[0073] The input port 310 and the output port 320 are connected through a power line VBUS and a ground line GND;

[0074] The power supply load capacity evaluation unit 330 implements the power supply load capacity evaluation method in any embodiment of the present invention.

[0075] The USB type converter provided by the embodiment of the present invention can execute the power supply load capacity evaluation method provided by any embodiment of the present invention, and has the corresponding functional structure and beneficial effects of the execution method.

Embodiment 3

[0077] image 3 A schematic structural diagram of a USB type converter provided in Embodiment 3 of the present invention. In this embodiment, on the basis of the above embodiments, the power supply load capacity evaluation unit 330 may further include:

[0078] The control circuit 331, the control circuit 331 includes a set value sending port 335, a voltage acquisition port 336 and a comparison circuit 337, the set value sending port 335 is connected to the output port 320, and is used to send the set value of the current load capacity to the output port 320 , the voltage collection port 336 is connected to the power line VBUS, and is used to collect the actual voltage value of the input port 310 under the set value of the current load capacity through the power line VBUS, and the comparison circuit 337 is connected to the voltage collection port 336, and is used to receive the input port 310 The actual voltage value of the input port 310 is compared with the preset voltage va...

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Abstract

The invention discloses a power supply load capacity evaluation method and a USB type converter. In the load capacity evaluation method of the power supply, after the input port and the output port of the USB connection line are respectively connected to the power supply and the load, a set value of the current load capacity is sent to the output port; and the set value of the current load capacity is detected The actual voltage value of the input port mentioned below, when the actual voltage value of the input port is less than the preset voltage value, adjust the set value of the current load capacity until the set value of the adjusted current load capacity corresponds to The actual voltage value of the input port is not less than the preset voltage value; outputting the set value of the adjusted current load capacity as the load capacity of the power supply. The load capacity evaluation method of the power supply disclosed in the present invention monitors and evaluates the ability of the electric energy output by the input port in real time, provides electric energy for the output port without damaging the input port, and serves as the power supply to supply power to the load.

Description

technical field [0001] Embodiments of the present invention relate to the fields of charging and USB type conversion, and in particular, to a power supply load capacity evaluation method and a USB type converter. Background technique [0002] As more and more smart terminals support the intelligent power supply method based on the C-type USB interface, the traditional type of USB interface charger will be gradually eliminated, which will waste a lot of social stock resources. [0003] In order to be able to convert different types of USB interfaces into Type-C USB interfaces, one method is to directly perform an interface format conversion to realize the conversion of different types of USB interfaces. Then, the conversion of this interface form cannot accurately inform the electrical appliance of the output capability of the power supply, so that intelligent charging cannot be realized, and the USB interface may even be damaged. Contents of the invention [0004] The inv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00G05F5/00H01R31/06
CPCG01R19/16538G05F5/00H01R31/065H01R13/6675H01R13/6683H02J7/00712
Inventor 刘小灵
Owner SHENZHEN LEGENDARY TECH