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Power supply method

A technology of power supply method and power supply device, which can be applied to load supply circuits, collectors, electric vehicles, etc., and can solve the problems of inability to bring about cooling and power saving

Inactive Publication Date: 2020-10-02
SHENXUN COMP KUNSHAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the voltage conversion gap, the efficiency of converting 20 volts to 12.6 volts is absolutely inferior to the efficiency of converting 15 volts to 12.6 volts, so the above-mentioned prior art cannot bring the benefits of cooling and power saving

Method used

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Embodiment Construction

[0008] Hereinafter, the present invention will be described in detail by illustrating various embodiments of the invention in the drawings. However, inventive concepts may be embodied in many different forms and should not be construed as limited to the illustrative embodiments set forth herein. Furthermore, the same reference numbers may be used to denote similar elements in the drawings.

[0009] First, please also see figure 1 and figure 2 , figure 1 It is a schematic diagram of a connector, a power supply device and a power receiving device provided by an embodiment of the present invention, and figure 2 It is a schematic flowchart of a power supply method provided by an embodiment of the present invention. It should be noted that, figure 2 The power supply method is practicable in figure 1 In the connector 10, the power supply device 12 and the power receiving device 14, but the present invention is not limited figure 1 The specific implementation of the connect...

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Abstract

A power supply method is implemented in a connector, a power supply device and a power receiving device, the connector is connected between the power supply device and the power receiving device, andthe power supply method comprises the following steps of after it is confirmed that the connector, the power supply device and the power receiving device are all connected successfully, starting a microprocessor of the power receiving device to judge whether at least one battery of the power receiving device needs to be charged or not; when judging that the at least one battery needs to be charged, using the microprocessor to confirm the rated voltage of the battery and output a corresponding instruction to the connector, and then using the connector to enable the power supply device to provide a corresponding output voltage to charge the battery according to the instruction, and t enable the power supply device to provide a larger output voltage when the rated voltage of the battery is larger. By means of the power supply method, the voltage drop generated when the output voltage is converted into the rated voltage can be reduced, or the voltage conversion efficiency is improved, andtherefore the advantages of cooling and power saving are achieved.

Description

【Technical field】 [0001] The present invention relates to a power supply method, and in particular to a power supply method that enables a power supply device to provide an appropriate output voltage according to the rated voltage of a battery in a power receiving device. 【Background technique】 [0002] Since USB Type-C can support the new generation USB Power Delivery (PD) specification, and the USBPD specification can also allow the power supply device to provide different levels of output voltage, such as 5V, 9V, 15V or 20V, so Existing power supply devices, such as AC adapters, have been modified to use USB Type-C connectors for power transmission. At the same time, some manufacturers will write a Vendor Defined Message (VDM) that can be identified by the USB Type-C connector in the powered device. Therefore, once the power receiving device is connected to the power supply device through the USB Type-C connector, the USB Type-C connector can allow the power supply devic...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/0063H02J2207/10
Inventor 蔡承翰李英维
Owner SHENXUN COMP KUNSHAN
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