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Operational amplifier testing system used for remote virtual experiment

A technology of operational amplifiers and test systems, which is applied in the direction of instruments, educational tools, teaching models, etc., can solve problems such as difficulty in obtaining experimental results and difficulty in testing multiple parameters of operational amplifiers, and achieve low performance requirements and save construction costs Effect

Inactive Publication Date: 2019-03-19
上海图菱新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to test multiple parameters of operational amplifiers, and it is difficult to obtain exact and accurate experimental results

Method used

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  • Operational amplifier testing system used for remote virtual experiment
  • Operational amplifier testing system used for remote virtual experiment
  • Operational amplifier testing system used for remote virtual experiment

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Embodiment Construction

[0036] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and processes are provided, but the protection scope of the present invention is not limited to the following implementations example. It is, therefore, to be understood that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the invention.

[0037] Such as figure 1 As shown, the open-loop gain test system diagram of the operational amplifier, the first resistor is 100kΩ, the second resistor is 1kΩ, the AO terminal of the analog output module outputs the voltage Vin, and the output terminal voltage Vout of the operational amplifier is connected to the AO terminal of the analog input module ;Such as figure 2 As shown, the abscissa is the given voltage of...

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Abstract

The invention discloses an operational amplifier testing system. An operational amplifier serves as a core integrated component in the book of Simulation and Digital Circuit, a testing circuit and a testing method of parameters of the operational amplifier will greatly inspire students and help the students to deepen the understanding of electric foundation courses, however, multiple parameters ofthe operational amplifier are difficult to test, and definite and accurate experimental results are difficult to obtain. The operational amplifier testing system comprises an open-loop gain testing system, an offset voltage adjustment testing system, a slew rate testing system, a full-power bandwidth testing system, a unit gain bandwidth testing system and a gain bandwidth product testing systemof a same-phase amplifier. Compared with the prior art, the operational amplifier testing system has the advantages that the six parameters of the operational amplifier can be accurately detected; thedemand for performance of a needed detection instrument is low, and the experimental construction cost is saved; the operation amplifier testing system can be controlled through remote access.

Description

technical field [0001] The invention relates to an operational amplifier testing system and method, in particular to an operational amplifier testing system for remote virtual experiments with high testing performance requirements. Background technique [0002] In accordance with relevant requirements such as the "Ten-Year Development Plan for Educational Informatization (2011-2020)" and "Key Points of Educational Informatization Work in 2017", the in-depth integration of information technology and experimental teaching in higher education will be further promoted, and the quality of experimental teaching in higher education will be continuously strengthened. Resource construction and application, focusing on improving the quality of experimental teaching in higher education and the level of practical education, the Ministry of Education decided to carry out demonstration projects in ordinary undergraduate colleges and universities from 2017 to 2020 on the basis of the reform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/18
CPCG09B23/183G09B23/186
Inventor 王鑫辰其他发明人请求不公开姓名
Owner 上海图菱新能源科技有限公司
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