Micro-power consumption temperature sensor

A temperature sensor, micro-power technology, used in thermometers, thermometer testing/calibration, thermometers with analog-to-digital converters, etc. Effect

Inactive Publication Date: 2017-06-13
WUXI ALEADER INTELLIGENT TECH
View PDF4 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For some low-cost, micro-power consumption, wide operating range, and passive wireless fields, existing technologies are difficult to meet their needs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Micro-power consumption temperature sensor
  • Micro-power consumption temperature sensor
  • Micro-power consumption temperature sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0029] Such as figure 1 As shown, a micro-power consumption temperature sensor includes a reference source, a first ring oscillator, a second ring oscillator, a calibration and a counter module; wherein, the first ring oscillator is oscillator 1, and the second ring oscillator That is, the oscillator 2, the first frequency converter is the frequency converter 1, and the second frequency converter is the frequency converter 2; the first charging and discharging circuit and the second charging and discharging circuit have the same circuit structure.

[0030] Wherein, the reference source is used to generate two voltage signals, wherein, one voltage signal is a constant temperature reference voltage Vref, and the other voltage signal is a linear voltage Vbe that is inversely proportional to temperature, and Vref is input to the input port of the first...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a micro-power consumption temperature sensor. The micro-power consumption temperature sensor comprises a reference source, a first ring oscillator, a second ring oscillator and a calibration and counter module; the reference source is connected with the calibration and counter module through the first ring oscillator and the second ring oscillator. According to the micro-power consumption temperature sensor, oscillation frequency is changed by changing ring oscillator input voltage, and the novel micro-power consumption temperature sensor is obtained in the mode of combining a calibration circuit with a counter. According to the temperature sensor, by adjusting parameters of all tubes, the temperature sensor has a wider working range and has good linearity within the range; compared with a traditional temperature sensor, the circuit structure is simpler, the area is smaller, consumption is lower, and the micro-power consumption temperature sensor has great advantages in the field of passive wireless application.

Description

technical field [0001] The invention belongs to the technical field of wireless communication electronic circuits, and in particular relates to a micro-power consumption temperature sensor. Background technique [0002] Temperature is one of the most basic environmental parameters. People's lives are closely related to the temperature of the environment. Real-time temperature measurement is required in industrial production, and temperature measurement is also inseparable in agricultural production. Therefore, research on temperature measurement methods and devices is of great significance. The key device for measuring temperature is the temperature sensor. The development of temperature sensor has gone through three development stages: (1) traditional discrete temperature sensor; (2) analog integrated temperature sensor; (3) intelligent integrated temperature sensor. At present, new temperature sensors in the world are developing rapidly from analog to digital, from integr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01K15/00
CPCG01K15/005G01K2219/00
Inventor 黄波韦良忠刘燕张真荣秦谋李明剑
Owner WUXI ALEADER INTELLIGENT TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap