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Method for automatically blocking high temperature/high current to which MIT technology is applied and switch using same

A technology of automatic cut-off and cut-off switch, which is used in the protection of overcurrent response, the emergency protection device of automatic disconnection, electrical components, etc., which can solve the problems of inability to adapt to the miniaturization of electronic devices and high manufacturing costs

Inactive Publication Date: 2015-10-07
MOBRIK
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  • Description
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Problems solved by technology

[0003] However, because the previous battery protection circuit was composed of two protection circuits, the manufacturing cost was not only high, but also it could not adapt to the trend of miniaturization of electronic devices.

Method used

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  • Method for automatically blocking high temperature/high current to which MIT technology is applied and switch using same
  • Method for automatically blocking high temperature/high current to which MIT technology is applied and switch using same
  • Method for automatically blocking high temperature/high current to which MIT technology is applied and switch using same

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Embodiment Construction

[0042] The present invention can be modified in many ways, and can also have various implementation examples, so specific implementation examples are given on the drawings to describe in detail. But this is not to limit the present invention to this specific implementation state, but it should be understood that all changes, equivalent materials and even substitutes covered by the idea and technical scope of the present invention are included. In describing the drawings, like reference signs are used for like constituent elements.

[0043] Terms such as first and second can be used to describe various constituent elements, but the above constituent elements should not be limited to the above terms. The above terms are used only to distinguish one constituent element from another constituent element. For example: if it does not exceed the scope of the rights of the present invention, the first constituent factor can be named as the second constituent factor, and similarly, the...

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Abstract

Disclosed are a method for automatically blocking high temperature / high current to which metal-insulator transition (MIT) technology is applied, and a switch using the method. A method for operating an automatic high temperature / high current blocking switch on the basis of an MIT element comprises: a step for calculating field effect transistor (FET) voltage applied to the FET on the basis of the resistance of a critical temperature switch (CTS) and reference resistance; a step for comparing the level of the FET voltage and the level of a threshold voltage; a step for determining the FET to be in an "on" state if the FET voltage is greater than the threshold voltage; and a step for determining the FET to be in an "off" state if the FET voltage is less than the threshold voltage, wherein the CTS is a switch implemented on the basis of the MIT element, and the MIT element may be an element which has metallic characteristics within only a certain temperature range.

Description

technical field [0001] Invented a high-temperature / over-current automatic cut-off method for MIT (Metal-Insulator Transition) technology and a switch using this method. Specifically, it is based on MIT technology, a method of automatically cutting off current under high temperature / overcurrent conditions and a switch using this method. Background technique [0002] Generally speaking, batteries, which are mainly used in electronic devices such as smartphones, should not malfunction or catch fire due to high temperatures. To solve this problem, a battery protection circuit is installed to prevent battery damage. The standard battery protection circuit is divided into a Protection primary protection circuit, and a secondary protection circuit composed of Bi-Metal (Bi-Metal), TCO, PTC, or Fuse to complete the primary protection circuit. [0003] However, because the previous battery protection circuit is composed of two protection circuits, the manufacturing cost is not only ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H3/08H02H5/04
CPCH02H3/085H02H5/041H02H5/047H02H7/18H02H3/08H02H5/04
Inventor 李东彩李英九崔忠铉
Owner MOBRIK
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