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Overvoltage protection device, method and system

An overvoltage protection device, overvoltage protection technology, applied in circuit devices, battery circuit devices, safety/protection circuits, etc., can solve the problem of high charging voltage

Active Publication Date: 2019-01-11
SHENZHEN WATER WORLD INFORMATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to provide an overvoltage protection device, method and system, which is used to solve the problem that the charging voltage is too high due to oscillation when the overvoltage protection chip starts the connection between the charger and the back-end electronic components

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  • Overvoltage protection device, method and system
  • Overvoltage protection device, method and system

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Embodiment Construction

[0050] It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0051] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0052] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a particular posture (as shown in the accompanying drawin...

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Abstract

The invention provides an overvoltage protection device, Method and system, wherein the overvoltage protection device comprises a CPU, a charging port, an overvoltage protection chip and a charge management chip, a charge port and a charge management chip are connected through an overvoltage protection chip circuit, CPU is connected with the charge management chip circuit, When charging the terminal of the equipment, the charging current is controlled to output a small initial value first, and then gradually increases to the normal value of the charging current according to a certain increasing rate, thus solving the problem the the instantaneous charging current is too large to cause the oscillation and the charging voltage is too high to be charged normally.

Description

Technical field [0001] The invention relates to the field of electronic equipment overvoltage protection, and in particular to an overvoltage protection device, method and system. Background technique [0002] Overvoltage protection mainly prevents damage to electronic components caused by overvoltage or electrostatic discharge. It is widely used in various electronic system products, especially in electronic communication equipment. The basic principle is: according to different parts of the circuit caused by overvoltage , Add different over-voltage protection chips, when the constant voltage threshold is reached, the over-voltage protection chip will automatically cut off the connection, so that the over-voltage energy will not be loaded on the electronic devices at the back of the over-voltage protection chip. The electronic devices at the end are not damaged by overvoltage energy. [0003] In electronic communication equipment, overvoltage protection chips are widely used in c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/0029
Inventor 张立新周毕兴
Owner SHENZHEN WATER WORLD INFORMATION CO LTD
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