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PTC (positive temperature coefficient) thermistor and communication device

A positive temperature coefficient and thermistor technology, applied in the direction of resistors with positive temperature coefficient, etc., can solve the problem that the resistance value cannot be reduced to 2-4 milliohms, and achieve the effect of small resistance value and high power supply efficiency

Inactive Publication Date: 2014-03-05
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The embodiment of the present invention provides a PTC thermistor and communication equipment to solve the problem in the prior art that the resistance value of the PTC thermistor cannot be reduced to 2-4 milliohms or even lower at zero power

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  • PTC (positive temperature coefficient) thermistor and communication device
  • PTC (positive temperature coefficient) thermistor and communication device
  • PTC (positive temperature coefficient) thermistor and communication device

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Embodiment Construction

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] Additionally, the terms "system" and "network" are often used herein interchangeably. The term "and / or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and there exists alone ...

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Abstract

The invention discloses a PTC (positive temperature coefficient) thermistor and a communication device. In the scheme, as the resistivity of a conducting magnetic material is in direct proportion to about 1.8 power of temperature, and the conducting magnetic material has a low normal-temperature resistivity, an resistance value can be reduced to 2-4 millimhos or even lower when the power is zero; meanwhile, since the conducting magnetic material has a small resistance value when operating normally, the power efficiency is high; the effect of long-term operation of the PTC thermistor in a high-impedance state is also achieved.

Description

technical field [0001] The invention relates to the field of thermistors, in particular to a PTC thermistor and communication equipment. Background technique [0002] The thermistor can show the change of resistance value correspondingly with the change of temperature, and has good sensitivity, accuracy and stability, so it has become a commonly used sensor in many application fields such as temperature measurement, compensation and control. device. Thermistors are widely used in commercial consumer resistive products, automotive, industrial and medical electronics applications, food management and processing, communications and instrumentation, computers, military and space, and research and development. [0003] At present, commonly used thermistors include NTC (Negative Temperature Coefficient, negative temperature coefficient) thermistors and PTC (Positive Temperature Coefficient, positive temperature coefficient) thermistors, which are composed of a polymer layer and c...

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Application Information

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IPC IPC(8): H01C7/02
Inventor 袁明川肖培义乔庆
Owner HUAWEI TECH CO LTD
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