Hierarchical analog circuit experimental box

Abstract

The invention relates to a hierarchical analog circuit experimental box. A power supply module, an instrument module, a direct-current power circuit module, an integrated power amplifier circuit, a discrete power amplifier circuit, a silicon controlled circuit module, a differential amplification circuit module, an integrated operational amplification circuit module, a discrete component amplification circuit module, a field-effect tube circuit module, an expanded experimental area, a discrete component inserting area and a power line and lead placing area are arranged in the experimental box;the input ends of the output ends of all the above circuits are led to an PCB panel through a PCB circuit to form rapid pluggable ports; the input port is connected with the output port of a signal generator through the lead; the output port is connected with a measuring instrument and a loudspeaker through the leads to perform measurement or send out alarm sound; transmission of an intermediatesignal is connected through the lead; and the experimental box provided by the invention has stable performance and high flexibility, can meet the basic manipulative ability exercise of most of students and can provide the opportunity of comprehensive circuit design for more excellent students.

Description

technical field [0001] The invention relates to an experiment box, in particular to a layered analog circuit experiment box, which belongs to the technical field of circuit experiment operation equipment. Background technique [0002] At present, for the expansion of experimental courses for college students, the laboratory equipment is biased towards fixed experimental instruments, and there are mainly the following problems: [0003] (1) The electronic components of each circuit unit have been fixed, and the electronic components are irreplaceable and not optional; [0004] (2) Each circuit unit is designed as a fixed structure, and each device has been connected. Students basically do not need to participate in the connection of the circuit, and only need to access the relevant instrument test data; [0005] (3) Except for basic experiments, there are no scalable circuits for students to practice. [0006] The above situation had the following consequences: [0007] St...

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Problems solved by technology

[0005] (3) Except for basic experiments, there are no scalable circuits for students to practice

[0007] Students cannot understand the different results brought by devices with different parameters to the circuit by choosing devices with different parameters, so they cannot deeply understand the functions of related electronic devices and the working principle of circuits; students lose the opportunity to design and build circuits by themselves, and cannot To understand the principle and design process of the circuit more thoroughly by doing it yourself; at the same time obliterate the students' curiosity and desire to explore; finally, there is no difference in the experimental data measured by the existing laboratory operating equipment, which will cause experiments among students. Data has a chance of plagiarism

[0008] In short, the defects of the traditional analog circuit experiment box with fixed circuit structure, fixed devices, and no expansibility experiments hinder the cultivation of students' practical ability, independent analysis of problems, problem-solving and innovative abilities

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