Supercharge Your Innovation With Domain-Expert AI Agents!

Variable resistance analog circuit and parameter design method of variable resistance analog circuit

A technology of analog circuits and analog resistors, which is applied in the field of parameter design of variable resistor analog circuits and variable resistor analog circuits, and can solve the problem of high precision of digital potentiometer adjustment, excessive minimum resistance value, and inability to accurately simulate output. Temperature variable resistance resistance and other issues

Inactive Publication Date: 2020-04-17
中航光电华亿(沈阳)电子科技有限公司
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the digital potentiometer is usually used to simulate the resistance value of the temperature variable resistor, and convert the resistance signal of the temperature variable resistor into an analog signal. Since the adjustable minimum resistance value of the resistor network in the digital potentiometer is too large, that is to say, the digital potentiometer The adjustment accuracy of the potentiometer is too large, so that it is impossible to accurately simulate the resistance value of the temperature variable resistor

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
  • Variable resistance analog circuit and parameter design method of variable resistance analog circuit
  • Variable resistance analog circuit and parameter design method of variable resistance analog circuit
  • Variable resistance analog circuit and parameter design method of variable resistance analog circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, every other embodiment obtained by those skilled in the art withou...

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 variable resistance analog circuit and a parameter design method of the variable resistance analog circuit. The variable resistance analog circuit comprises a fine adjustmentcircuit, a coarse adjustment circuit and a controller connected with the first control end of the fine adjustment circuit and the second control end of the coarse adjustment circuit. The controller isused for adjusting the resistance value of the fine adjustment circuit and / or the coarse adjustment circuit; the input end of the coarse adjustment circuit is connected with the input end of the variable resistance analog circuit, and the output end of the coarse adjustment circuit is connected with the input end of the fine adjustment circuit; the input end of the fine adjustment circuit is connected with the output end of the coarse adjustment circuit, the output end of the fine adjustment circuit is connected with the output end of the variable resistance analog circuit, and the input endof the fine adjustment circuit is connected with the input end of the variable resistance analog circuit. Therefore, under the condition that the fine adjustment circuit and the coarse adjustment circuit are combined, the adjustment precision of the variable resistance simulation circuit is improved, and the resistance value of the resistor to be simulated is simulated more accurately.

Description

technical field [0001] The present application relates to the technical field of electronic circuits, in particular to a variable resistance analog circuit and a parameter design method for the variable resistance analog circuit. Background technique [0002] Digital potentiometer (Digital Potentiometer), also known as numerically controlled programmable resistor, is a new type of complementary metal oxide semiconductor (Complementary Metal Oxide Semiconductor, CMOS) digital and analog mixed signal processing that replaces traditional mechanical potentiometers (ie, analog potentiometers). integrated circuit. A digital potentiometer is controlled by a digital input and produces an analog output. Depending on the digital potentiometer, the maximum value of the wiper current can be from a few hundred microamps to several milliamperes. [0003] At present, the digital potentiometer is usually used to simulate the resistance value of the temperature variable resistor, and conve...

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
IPC IPC(8): G05B19/04
CPCG05B19/04
Inventor 徐松亮
Owner 中航光电华亿(沈阳)电子科技有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com