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Temperature sensor and temperature measurement method

A technology of temperature sensor and detection method, applied in thermometers, thermometers and instruments using electric/magnetic elements that are directly sensitive to heat, can solve the problems of large chip area, large power consumption, complex implementation, etc., and occupy the chip area Small, low power consumption, easy to achieve effect

Active Publication Date: 2014-11-05
SHENZHEN RENERGY TECH
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Problems solved by technology

[0014] The purpose of the present invention is to provide a temperature sensor and a temperature detection method, aiming to solve the problems of complex implementation, large power consumption and large chip area occupied by the temperature sensor in the prior art

Method used

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  • Temperature sensor and temperature measurement method

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Embodiment Construction

[0044] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0045] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0046] An embodiment of the present invention provides a temperature sensor, such as image 3 , the temperature sensor includes an oscillator 301, a counter 302 and a calculator 303;

[0047] The oscillator 301 is used to output a periodic signal of a certain frequency to the counter 302;

[0048]The counter 302 is used for counting the periodic signal, and sends the count value of the signal and the total time length of the signal to the calculator 303;

[0049] The ...

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Abstract

The invention relates to the technical field of temperature measurement, and provides a temperature sensor and a temperature measurement method. The temperature sensor comprises an oscillator, a counter and a calculator. The oscillator is used for outputting periodic signals at a certain frequency to the counter, the counter is used for counting the periodic signals and sending a count value of the signals and total time duration of the signals to the calculator, and the calculator is used for calculating a temperature value according to the count value of the signals and the total time duration of the signals. Compared with the prior art, the quantization function of an analog-to-digital converter in the prior art is completed through the simple counter, and due to the fact that the counter is quite easy to implement, the complexity of the link of converting analog quantity to digital quantity in the prior art is simplified; the temperature sensor and the temperature measurement method have the advantages of being simple in structure, easy to implement, small in occupied chip area and low in power dissipation.

Description

technical field [0001] The invention relates to the technical field of temperature detection, in particular to a temperature sensor and a temperature detection method. Background technique [0002] With the development of electronic information technology and the improvement of people's living standards, people's requirements for chips are getting higher and higher: chips not only need to support more functions, but also need to have higher performance and lower cost. These increasingly stringent requirements pose more and more challenges to the design of the chip, and every module in the chip must strive for perfection. Unfortunately, as the feature size of the CMOS process becomes smaller and smaller, although the chip can be made faster and smaller, the impact of various non-ideal factors, such as process deviation and temperature characteristics, on the chip is also increasing. Big. The key modules in the chip must have the ability to resist these non-ideal factors in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/00
Inventor 许建超赵琮汤江逊欧阳振华许志玲
Owner SHENZHEN RENERGY TECH
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