Multifunctional digital electronics technology course learning plate system

Abstract

The invention discloses a multifunctional digital electronics technology course learning plate system. The multifunctional digital electronics technology course learning plate system comprises an input module, a combined logic module, a sequential logic module and an output module. Among the various modules, only power wires and ground wires are connected together, and unified power supply is realized. The input module comprises a switch value input, a manual clock generating unit and a continuous clock generating unit. The output module comprises an LED lamp and a seven-segment digital tube.The combined logic module comprises a gate circuit, a decoder, a data selector, an encoder, a numerical value comparator and an adding device. The sequential logic module comprises a trigger, a counter and a bidirectional shifting register. The multifunctional digital electronics technology course learning plate system has the advantages that experimental operation is facilitated; circuit connection time is shortened, circuit connection error probability is reduced, and students have more energy to understand, design and verify digital logic circuits; a learning plate can be multipurpose; andcommon 2.54 spacing inserting pin or wiring board or Dupont connecting wires are adopted, and thus, repair is facilitated.

Description

technical field [0001] The invention belongs to the technical field of digital electronics, and in particular relates to a multifunctional experimental system for assisting digital electronic technology course learning Background technique [0002] Digital electronic technology has always been the core basic course of electrical majors in colleges and universities. It is both theoretical, practical and engineering, and plays an important role in the cultivation of students' practical ability, application ability and innovation ability. At present, digital electronic technology experiments mainly use experimental boxes. The mainstream experimental boxes all use 14-pin or 16-pin general-purpose chip sockets, and plug in whatever chips are used. The main defect of this experiment box is: 1) when carrying out the experiment, the corresponding chip needs to be inserted into the universal chip holder, and the chip needs to be replaced after the experiment content is changed, so re...

AI Technical Summary

Problems solved by technology

The main defects of this kind of experiment box are: 1) when carrying out the experiment, the corresponding chip needs to be inserted into the general chip holder, and the chip needs to be replaced after the experiment content is changed, so repeated plugging and unplugging is easy to damage the chip pins, resulting in a waste of experiment funds

2) Since the chip holder is universal, the chip pin name cannot be marked on the terminal, so that the circuit connection needs to be constantly compared with the experiment guide or the chip data manual to ensure the correctness of the connection

Connecting circuits can be time-consuming and labor-intensive for junior college students with weak experimental skills, which makes many students feel difficult to understand and difficult to experiment, resulting in poor experimental results

3) For comprehensive experiments that require multiple chips to be used at the same time, course design or some actual systems, there will be insufficient chip sockets, and additional circuit boards need to be connected; even if the chip sockets are barely enough for circuit connection, it will be a more difficult task. Troublesome and difficult things, a slight mistake will lead to incorrect experimental results, which will affect students' learning enthusiasm and learning effect

[0003] The Chinese patent specification "Trap-type digital electronic technology experiment box" (authorized announcement number: CN 103198742 B) discloses a digital electronic technology experiment box for experimental teaching. The defects are: 1) All chips are arranged on the back of the experiment board, and students It is just the chip symbol on the front of the experiment board, which makes students lack perceptual knowledge of the chip

2) Since the back of the experiment board is still a general-purpose chip socket, there is no chip pin name label on the front of the experiment board, and it is still easy for students to make mistakes when connecting the circuit

3) The number of chip holders on the back of the experiment board is insufficient. Although it is not necessary to replace the chip every time, it is still necessary to replace the chip when doing some routine experiments and comprehensive experiments.

Images