Multi-person voter device for in-phase amplifier teaching

A non-inverting amplifier and voting device technology, applied in the field of electronics, can solve problems such as affecting teaching effectiveness, lack of interest in verification experimental circuits, and students not being interested in learning.

Inactive Publication Date: 2020-10-27
NANNING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Operational amplifier is the core content of analog electronic technology and electrical and electronic technology courses. Non-inverting amplifier is one of the important contents of operational amplifier teaching. At the same time, non-inverting amplifier circuit is often used in voltage source, current source, signal am

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  • Multi-person voter device for in-phase amplifier teaching
  • Multi-person voter device for in-phase amplifier teaching

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with the accompanying drawings.

[0010] Such as figure 1 As shown, a multi-person voting device for non-inverting amplifier teaching, the circuit of the device includes an operational amplifier U1, judge switches K1~K8, number of consent selection switch SW1, resistors R1~R20, and result indicator light D1. In the circuit, One end of K1~K8 is grounded through R1~R8 respectively, and the other end is connected to the second pin of U1; R18 is connected to both ends of the first and second pins of U1; one end of R19 is connected to the power supply, and the other end is connected to the third pin of U1 One end of R20 is grounded, and the other end is connected to the third pin of U1; one end of R9 is connected to the power supply, and the other end is connected in series with R10~R17 and then grounded; the first pin of SW1 is connected to the connection point of R9 and R10, and the second pin Connect to...

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Abstract

The invention relates to a multi-person voter device for in-phase amplifier teaching, and belongs to the technical field of electronics. The in-phase amplification electric appliance is widely applied, which is one of important teaching contents of an analog electronic technology; the objective of the invention is to improve the teaching effect of in-phase amplifier content. The multi-person voterdevice composed of an LM358, a self-locking switch, a dial switch, a resistor and a light emitting diode is designed. The voter device can adjust different consent people according to requirements, can be configured into a multi-person voter with 1-8 persons, is applied to the teaching practice of an in-phase amplifier of an analog electronic technology course, can arouse the interest of studentsin participating in teaching, and improves the teaching effect.

Description

technical field [0001] The invention relates to a multi-person voting device for in-phase amplifier teaching, which belongs to the field of electronic technology. Background technique [0002] Operational amplifier is the core content of analog electronic technology and electrical and electronic technology courses. Non-inverting amplifier is one of the important contents of operational amplifier teaching. At the same time, non-inverting amplifier circuit is often used in voltage source, current source, signal amplification and other occasions. It is widely used. In order to verify the theoretical learning content, teachers usually arrange to carry out verification experiments alone. Due to the lack of interest in the verification experimental circuit, students are not interested in learning, which affects the teaching effect. Therefore, it is very necessary to design a teaching device that can not only mobilize students' learning enthusiasm but also integrate the content of ...

Claims

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Application Information

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IPC IPC(8): G09B23/18
CPCG09B23/183
Inventor 吕德深梁承权
Owner NANNING UNIV
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