Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A dual-mode temperature control circuit and control method for sensor heating elements

A heating element and sensing circuit technology, applied in the dual-mode temperature control circuit and control field, can solve the problems of reducing the effective accuracy of the sensor sampling circuit, discontinuous input current of the switching power supply, affecting the sensor power rail, etc., to achieve large-scale autonomy Deploy, facilitate online update, and improve the effect of heating efficiency

Active Publication Date: 2020-12-15
SOUTHEAST UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the switching noise when the switching power supply is switched is coupled into the measurement circuit, which introduces unnecessary noise to the system; at the same time, because the input current of the switching power supply is discontinuous and is a pulsating current, the system appears as a step load externally, resulting in the loss of the front-end power supply. The track collapses, which in turn affects the sensor power rail, and its impact on the sensor power rail also indirectly reduces the effective accuracy of the sensor sampling circuit

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
  • A dual-mode temperature control circuit and control method for sensor heating elements
  • A dual-mode temperature control circuit and control method for sensor heating elements
  • A dual-mode temperature control circuit and control method for sensor heating elements

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] In order to clearly illustrate the technical features of the solution, the solution will be described below through specific implementation modes.

[0036] see Figure 1 to Figure 4 , the present invention is: a dual-mode temperature control circuit for sensor heating elements, which includes a working condition sensing circuit, a digital control circuit, an analog control circuit, a mode switching circuit and a dual-mode current control heating circuit;

[0037] Wherein, the output end of the working condition sensing circuit is respectively connected to one of the digital input ends of the digital control circuit and the analog input end of the analog control circuit, and the other digital input end of the digital control circuit is connected to The upper computer, its two digital output terminals are respectively connected to the analog input terminal of the analog control circuit and one of the input terminals of the mode switching circuit; the other input terminal of...

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 provides a dual-mode temperature control circuit for a sensor heating element and a control method and belongs to the technical field of sensor heating elements. According to the technical schemes of the invention, the dual-mode temperature control circuit for the sensor heating element comprises a working condition sensing circuit, a digital control circuit, an analog control circuit, a mode switching circuit and a dual-mode current control heating circuit. According to the dual-mode temperature control circuit for the sensor heating element of the invention, the two control circuits can be automatically switched, and high-efficiency, low-noise and remotely-adjustable heating element temperature control can be realized.

Description

technical field [0001] The invention relates to the technical field of sensor heating elements, in particular to a dual-mode temperature control circuit and a control method for sensor heating elements. Background technique [0002] With the popularization of Internet of Things technology, measurement nodes based on various sensors are widely used, such as wind force and direction sensors and gas concentration sensors. These sensors have heating elements for adjusting temperature; different from traditional weather stations, this type of measurement Smaller nodes and lower energy consumption place higher demands on the heating efficiency of the heating element drive circuit. [0003] The traditional linear heating circuit has the inherent disadvantages of low efficiency and high heat generation, which increases the difficulty of thermal design of the system while increasing power consumption, which is not conducive to the miniaturization design of the system. In the current...

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 Patents(China)
IPC IPC(8): G05D23/30
CPCG05D23/30
Inventor 易真翔崔舒欣
Owner SOUTHEAST UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com