Power supply protection circuit, electronic equipment and electronic assembly
A protection circuit and protection technology, applied in the field of electronic equipment, electronic components, and power supply protection circuits, can solve the problems of normal operation interference of electronic equipment, burnout of electronic components, interference with normal operation of electronic equipment, etc.
Pending Publication Date: 2021-04-20
DINGTALK HLDG CAYMAN LTD
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Problems solved by technology
When the electronic equipment is just connected to the power supply, a large surge will be generated, which will interfere with the normal operation of the electronic equipment, and may even burn out the components of the electronic equipment
Static electricity may also interfere with the normal operation of electronic equipment, and may burn out electronic components when the electrostatic power is too large
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[0016] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of means consistent with aspects of the present application as recited in the appended claims.
[0017] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. Unless otherwise defined, the technical terms or scientific terms used in the application shall have the ordinary meanings understood by those skilled in the art to which the application belongs. "First", "second" and similar words used in the specifi...
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The invention provides a power supply protection circuit, electronic equipment and an electronic assembly. The power supply protection circuit comprises a power supply input end, a power supply output end and at least one protection sub-circuit. The power input end is used for connecting a power supply and receiving power of the power supply. The power output end is connected with the power input end and used for being connected with the power receiving circuit and outputting electric energy to the power receiving circuit. The at least one protection sub-circuit is connected between the power supply input end and the ground end, and one end connected with the power supply input end is connected between the power supply input end and the power supply output end. The protection sub-circuit comprises a clamping type overvoltage protection device and a fuse link, and the clamping type overvoltage protection device and the fuse link are connected in series between the power supply input end and the ground end.
Description
technical field [0001] The present application relates to the field of power supply, in particular to a power supply protection circuit, electronic equipment and electronic components. Background technique [0002] With the development of electronic technology, the requirements for the reliability of electronic equipment are getting higher and higher. Electronic equipment is powered by an external power supply, and the surge and / or static electricity brought by the external power supply will interfere with the normal operation of the electronic equipment, and even damage the equipment. [0003] Surge (Electrical Surge), as the name implies, is an instantaneous peak value beyond the stable value, including voltage surge and current surge. When the electronic equipment is just connected to the power supply, a large surge will be generated, which will interfere with the normal operation of the electronic equipment, and may even burn out the components of the electronic equipme...
Claims
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IPC IPC(8): H02H9/00H02H9/04H02H3/00
Inventor 张守闯
Owner DINGTALK HLDG CAYMAN LTD