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Power source grade recognition circuit, power source grade marking circuit and power source grade power supply system

A technology for identifying circuits and grades, applied in the direction of power supply testing, etc., can solve the problems of terminal equipment damage, mixed use by users, etc., and achieve the effect of avoiding damage

Inactive Publication Date: 2014-11-12
NANNING FUGUI PRECISION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Currently, power adapters with different voltages and powers are similar in appearance due to their connectors, so it is easy for users to mix them up. Once a power adapter with a small power supply capacity is used on a terminal device On the terminal equipment with small electricity, it will cause damage to the terminal equipment

Method used

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  • Power source grade recognition circuit, power source grade marking circuit and power source grade power supply system
  • Power source grade recognition circuit, power source grade marking circuit and power source grade power supply system
  • Power source grade recognition circuit, power source grade marking circuit and power source grade power supply system

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Embodiment Construction

[0047] figure 1 It is a block diagram of an embodiment of the power level identification circuit 10, the power level marking circuit 20, and the power level power supply system of the present invention.

[0048] In this embodiment, the power level power supply system includes a power level identification circuit 10 and a power level marking circuit 20. The power level identification circuit 10 performs corresponding mode switching according to the signal level of the input power signal, and includes a first voltage conversion unit 101, a first power interface 102, a data processing unit 103, a detection unit 104, and a signal preprocessing unit 105. The first power interface 102 is electrically connected to the first voltage conversion unit 101 for receiving a power signal and a power level encoding signal. The detection unit 104 is electrically connected to the first power interface 102, and is used to filter the power signal in the first power interface 102 to obtain a power le...

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Abstract

A power source grade recognition circuit comprises a voltage conversion unit, a data processing unit, a first power interface, a detection unit and a signal preprocessing unit, wherein the first power interface is used for receiving power signals and power grade coded signals, the detection unit is used for filtering out the power signals in the first power interface, the signal preprocessing unit is used for shaping waves of the power grade coded signals, and the data processing unit is used for recognizing the signal grades of the shaped power grade coded signals. The invention further provides a power source grade marking circuit and a power source grade power supply system. The power source grade recognition circuit, the power source grade marking circuit and the power source grade power supply system transmit power grade information to a terminal device through the power interface, the purpose that the terminal device automatically recognizes the received power signals and carries out switching between corresponding modes is achieved, and damage to terminal device caused when users mix up the terminal devices is avoided.

Description

Technical field [0001] The invention relates to an identification circuit and a marking circuit, in particular to a power supply system for automatically identifying power levels. Background technique [0002] Currently, power adapters of different voltages and powers are similar in appearance to users, and users can easily mix them. Once a power adapter with a small power supply capacity is used on a terminal device with a large power consumption or a power adapter with a large power supply capacity is used for the power consumption On terminal equipment with small electricity, it will cause damage to the terminal equipment. Therefore, an improved technical solution is urgently needed to overcome the above shortcomings. Summary of the invention [0003] In view of this, it is necessary to provide a power level identification circuit that can identify the signal level of the received power signal. [0004] In addition, it is necessary to provide a power level marking circuit that ...

Claims

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Application Information

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IPC IPC(8): G01R31/40
Inventor 廖明裕
Owner NANNING FUGUI PRECISION IND CO LTD
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