CN108922348A - Analog circuit teaching experiment box - Google Patents
Analog circuit teaching experiment box Download PDFInfo
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- CN108922348A CN108922348A CN201810853596.8A CN201810853596A CN108922348A CN 108922348 A CN108922348 A CN 108922348A CN 201810853596 A CN201810853596 A CN 201810853596A CN 108922348 A CN108922348 A CN 108922348A
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- 238000002474 experimental method Methods 0.000 title claims abstract description 140
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- 238000010586 diagram Methods 0.000 claims abstract description 15
- 239000010410 layer Substances 0.000 claims description 208
- 239000003990 capacitor Substances 0.000 claims description 40
- 230000019771 cognition Effects 0.000 claims description 37
- 238000012360 testing method Methods 0.000 claims description 23
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/183—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits
Abstract
The invention discloses a kind of analog circuit Teaching Experiment Box, experimental box is configured with multiple erecting and weldings on corresponding independent pcb board, the pcb board of each analog module is at least provided with wiring layer and silk-screen layer, silk-screen layer includes that circuit theory line silk-screen layer is shown for teaching experiment is electrically connected principle between each component for constituting analog module equipped with the circuit theory line silk-screen layer for circuit connection schematic diagram of imparting knowledge to students and for the top surface silk-screen layer and/or bottom surface silk-screen layer for identifying the letter symbol silk-screen layer of each component information used of imparting knowledge to students；Multiple analog modules include but is not limited to interarea plate module, and multiple sensors circuit interface, extension feature board and multiple independent circuits debugging units with independent circuits and/or multiple independent entry device functions are set in interarea plate module.Improve student start to circuit design, Identify chip and its designed capacity application expertise in circuit layout, improve experiment teaching effect.
Description
Technical field
The present invention relates to a kind of Teaching Experiment Box, more particularly, to a kind of analog circuit Teaching Experiment Box.
Background technique
Usually in circuit experiment teaching, analog circuit occupies important tutorial section, and many digital integrated electronic circuits are also base
Made of integrating on analog basis, peripheral circuit is also required to many analog circuit cooperations and completes circuit function；And it is simulating
In electric circuit teaching, it will usually which to student instruction circuit theory basis and then for student, Analog Electronics Technique Experiment class is being set
Journey makes student obtain deeper more firm teaching efficiency to analog circuit to reach, and in Analog Electronics Technique Experiment course teaching
In, usually many schools carry out carrying out Analog Electronics Technique Experiment curricula using bread board or self-made experimental equipment；Face
Although wrapper sheet is simple omnipotent, builds analog circuit and but needs to take a long time, and the defects of poor contact phenomenon often occur,
Cause numerous fault phenomenons to occur, undoubtedly bring more puzzlement to the student of rigid learning simulation Experiment of Electronic Technology course,
Although and some self-made experimental equipments can improve the quality of teaching to a certain extent, existing self-made experimental equipment experimental teaching effect
Fruit is relatively limited, is unfavorable for more preferable training student to circuit design manipulative ability, Identify chip ability and component in electricity
The basic skills such as the design application in the Butut of road, even if causing many students that may go up Analog Electronics Technique Experiment course
Afterwards, be still to analog circuit relevant design application expertise harvest it is less, be unfavorable for preferably reaching experiment teaching effect, it is difficult to
Quickly and effectively enter society work position state.
Summary of the invention
The present invention is that there is be unfavorable for more preferable training student to electricity for the existing Analog Electronics Technique Experiment curricula of solution
The basic skills such as the design application of manipulative ability, Identify chip ability and component in circuit layout are designed on road, cause
Even if many students may be still to analog circuit relevant design application expertise after having gone up Analog Electronics Technique Experiment course
Harvest it is less, be unfavorable for preferably reaching the statuses such as experiment teaching effect and one kind for providing can more preferable culture and improvement student to electricity
The basic skills such as the design application of manipulative ability, Identify chip ability and component in circuit layout are designed on road, improve
The analog circuit Teaching Experiment Box of experiment teaching effect.
Used specific technical solution is the present invention to solve above-mentioned technical problem：A kind of analog circuit teaching experiment
Case, including experimental box, it is characterised in that：Experimental box is configured with the analog module of multiple teaching, each analog circuit mould
Block configures erecting and welding on corresponding independent pcb board, and the pcb board of each analog module is at least provided with wiring layer
And silk-screen layer, silk-screen layer include top surface silk-screen layer and/or bottom surface silk-screen layer, are set on top surface silk-screen layer and/or bottom surface silk-screen layer
Have for the circuit theory line silk-screen layer for circuit connection schematic diagram of imparting knowledge to students and identifies each component information used for imparting knowledge to students
Letter symbol silk-screen layer, circuit theory line silk-screen layer for teaching experiment show constitute analog module each component
Between be electrically connected principle, wiring layer shows the practical electric wiring connection structure and cloth of analog module for teaching experiment
Line design characteristics structure, configuration is equipped with several analog circuit test points on wiring layer, and analog circuit test point is located at practical electrical
On wire connection structure, the detection connector being electrically connected with detecting instrument, analog circuit detection are set on analog circuit test point
The setting of point configures setting according to the circuit characteristic of each different analog modules；Multiple analog modules include but not
It is limited to interarea plate module, ± 12V adjustable DC power module, DC power supplier, audio integrated power amplification circuit module, straight
Differential amplifier circuit module, Voltage-Controlled oscillation circuit module and discrete power amplification circuit module are flowed, is set in interarea plate module a variety of
Sensor circuit interface, extension feature board and multiple independences with independent circuits and/or multiple independent entry device functions
Circuit debugging unit.Can more preferable culture and improvement student exist to circuit design manipulative ability, Identify chip ability and component
The technical ability such as the design application in circuit layout, improve experiment teaching effect.Make student faster deeper into more effectively quickly deep
Understanding, which is grasped, obtains analog module teaching experiment demand and actual design manipulative ability, leaves school and is entered society quickly for student
More effective teaching experiment effect is provided into work position state, without receiving after the practical post that enters society
Task is still that a face is ignorant or state of feeling at a loss.
Preferably, the component information includes providing teaching experiment cognition judgement identification each different members for student
Component title, component symbol, component parameter and the component pin symbolic information of device.Improve student instruction cognition effect
Rate and deep effective stability.
Preferably, the wires design feature structure includes providing the wiring pads knot of teaching experiment cognition for student
Structure, wiring move towards Structure Planning, electrostatic screen wire structures, wiring maximum operating currenbt Structure Planning, via hole and electrically plan cloth
Cable architecture and signal isolation wire structures；Pcb board uses lamina, doubling plate or Multilayer Structure, the wiring layer packet on pcb board
Layer top layer wiring layer, bottom wiring layer and/or intermediate wiring layer layer are included, single circuit pcb board has bottom wiring layer and top layer silk
Layer is printed, top layer silk-screen layer includes letter symbol silk-screen layer and circuit theory line silk-screen layer；Odt circuit pcb board includes top layer cloth
Line layer, bottom wiring layer, top layer silk-screen layer and bottom overlay, top layer silk-screen layer and bottom overlay include letter symbol silk
Layer and circuit theory line silk-screen layer are printed, layer top layer wiring layer and bottom are realized by via hole between layer top layer wiring layer and bottom wiring layer
Electric wiring connection between layer wiring layer；Multilayer circuit pcb board with except double-layer circuit board characteristic also have several layers not
The intermediate wiring layer layer that bright can be seen realizes each layer by via hole between layer top layer wiring layer, intermediate wiring layer layer and bottom wiring layer
Electric wiring connection between wiring layer.It grasps student faster deeper into more effective quickly heightened awareness and obtains analog circuit
Demand and actual design manipulative ability are tested in modular instruction, and leaving school to enter society for student rapidly enters work position state and provide
More effective teaching experiment effect is still that a face is ignorant without receiving task after the practical post that enters society
Or state of feeling at a loss.
Preferably, multiple analog modules further include providing the two-stage exchange of teaching experiment cognition for student
Amplification circuit module, negative feedback amplifier circuit module penetrate grade and follow circuit module, Linear applications of OA circuit module, amplifier non-
Linear applications circuit module, wave generator circuit module, active filter module, voltage comparator module, integrated circuit RC
Sine wave oscillation circuit module, integrated stable voltage circuit module, voltage/frequency conversion circuit module, sound light control circuit module, journey
Control amplifier circuit module, audifier module, circuit for controlling motor and temperature circuit module.From multiple and different functional simulations
In circuit module teaching experiment and consolidation teaching, more preferable culture and improvement student is to circuit design manipulative ability, Identify chip energy
The technical ability such as the design application of power and component in circuit layout, improve experiment teaching effect.
Preferably, the circuit theory line silk-screen layer and letter symbol silk-screen layer use different silk-screen color knots
Structure, the letter symbol position of letter symbol silk-screen layer correspond to each component position nearby.Improve circuit theory line
The recognition efficiency of silk-screen layer and letter symbol silk-screen layer, with the circuit theory line and Chinese character being related in itself on pcb board
Number content information amount is very big, and using different silk-screen color structures, faster effective raisings teaching experiment identification judges
Efficiency and accuracy.
Preferably, the multiple independent circuits debugging units being arranged in the interarea plate module include providing religion for student
The integrated operational amplifier circuit unit for testing cognition, large power triode are learned to pipe unit, mono-/bis-pipe amplifier circuit unit and extension function
It can plate unit；It extends function plate unit and is equipped with multiple independent pads and/or equipped with by between multiple pads and connection pad
Multiple independent pad groups that thin copper film constitutes extension function are covered in connection, and element inserting column or element inserting are set in multiple independent pad groups
Pad；Mono-/bis-pipe amplifier circuit unit is equipped with the jack and its pad that multiple pre-inserted welding equipments connect hole location, multiple jacks and its weldering
Inserting is welded with for insert welding debugging composition two triodes of mono-/bis-pipe amplifier circuit unit, multiple resistance, more on disk
A capacitor, multiple electrolytic capacitors include multiple individual resistors, capacitor, electricity in multiple resistance, multiple capacitors and multiple electrolytic capacitors
Solve resistor chain and the capacitor row of capacitor and multiple default connection ground wires；Integrated operational amplifier circuit unit is equipped with multiple pre-inserted welding equipments
The jack and its pad of hole location are connect, the jack of hole location is connect equipped with multiple pre-inserted welding equipments and its pad inserting is welded with two and integrates
Resistance, capacitor, diode and the voltage-stabiliser tube of amplifier chip and multiple independent inserting welding.By the circuit unit of standard from it is different
Parameter specification component be replaced connection debugging, more quickly and effectively intensification grasp improve each unit simulation teching experiment
Efficiency.
Preferably, the multiple independent circuits units being arranged in the interarea plate module include providing teaching for student in fact
Test multiple independent components of cognition, multiple independent component post pole body microphones, Hall sensor, photo resistance, thermistor,
Honey device, light emitting diode, adjustable resistor, relay and resistance configured with multiple and different resistance parameter values, capacitor and
Diode, multiple interarea plate modules are equipped with pin corresponding with each independent component and assign hole location and install with each pin
Hole location be mutually routed connection draw connecting holes position and/or detection hole location；The multiple independent component is learned in teaching experiment
While raw offer teaching experiment cognition, the mould for being independently accessed or replacing and access multiple teaching is also provided for teaching experiment
Quasi- circuit module carries out circuit debugging teaching.By the analog module of standard and multiple and different parameter specification components into
The simulation teching conventional efficient for improving each unit is grasped in row replacement or access connection debugging, intensification more quickly and effectively.
Preferably, the circuit theory line silk-screen layer is located on pcb board the pcb board layer surface where having component
On, in the pcb board layer surface including top layer face and/or round floor, circuit theory connecting line layer silk-screen, which only provides teaching for student, to be recognized
Know indicating circuit catenation principle, direct corresponding circuits catenation principle.Student is improved to the routing components and cloth line gauge of circuit theory
Then teaching experiment efficiency reduces or avoids maloperation behavioral problem during teaching experiment, improves teaching cognition and grasps efficiency.
Preferably, the plant-grid connection inserting groove of each analog module is configured on the experimental box, each simulation electricity
Road module is equipped with plug-in power interface and is routed with the plant-grid connection accessed from power interface, power interface and experimental box
The inserting groove of upper configuration and ± 12V adjustable DC power module or DC power supplier are connected power supply.Improve each analog circuit
The effective and rapid property of the access of module for power supply power supply, while teaching of use power module is the power supply of each analog module, is both saved
Authentic and valid deep analog circuit is provided again using expense needed for independent power source special equipment and instrument for student instruction to teach
Experiment effect is learned, the school post that enters society is left for student and sturdy circuit design knowledge is provided, it is faster stronger to step into adaptation
Each post such as social work, research or teaching.
Preferably, be provided in the interarea plate module direct current signal interface unit, dc power interface unit, can
Tuning DC power interface unit and AC power interface unit, direct current signal interface unit, dc power interface unit, straight-adjustable
Interface Terminal and circuit test point, Interface Terminal and each analog circuit are set on galvanic electricity source interface unit and AC power interface unit
The power interface of module is electrically connected.It improves interface and connects convenient validity, improve teaching experiment efficiency.
Another goal of the invention of the present patent application is to provide a kind of analog circuit Teaching Experiment Box teaching usage method,
It is characterized in that：Including following teaching usage method
A one of according to the above technical scheme described in letter symbol silk-screen layer on include component title, print on component symbol
Each component information of brush and in the teaching experiment of the good practical component of corresponding position erecting and welding, make student from
The each component information for being printed with component title, component symbol, component parameter and component pin symbolic information enters
Hand, it is in kind in conjunction with each component that erecting and welding is good on analog module, keep student in kind to component and its
Pin identification judgement and circuit components symbol, component parameter used in circuit design have explicit deep
Quick teaching experiment understanding is grasped；
B one of according to the above technical scheme described in circuit theory line silk-screen layer on the circuit theory line trend recorded of silk-screen
In conjunction with the teaching experiment of corresponding analog module circuit diagram, make mould of the student one of described in composition above-mentioned technical proposal
Actual circuit principle line trend of each component in kind of quasi- circuit module in analog module has explicit depth
The teaching experiment at quarter, which recognizes, to be grasped；
C one of according to the above technical scheme described in the wiring character recorded of wiring layer, make student to constituting above-mentioned technical proposal
Wiring pads structure, wiring on one of described analog module pcb board move towards Structure Planning, electrostatic screen wire bond
It is explicit deep that structure, wiring current programming structure, via hole electrically plan that wire structures and signal isolation wire structures have
The cognition of wiring skill in design teaching experiment is grasped；
D will power on described in one of above-mentioned technical proposal or insert with the plant-grid connection of analog module each on experimental box
After slot mutually inserts access power supply, teaching of use experiment detector is to each analog circuit test point being arranged on analog module
Detection teaching experiment is carried out, the teaching for obtaining explicit to each analog module deep working principle and working result is real
Cognition is tested to grasp；
E by multiple independent circuits unit described in one of above-mentioned technical proposal be independently accessed or replace access above-mentioned technical proposal it
The analog module of multiple teaching described in one carries out circuit debugging teaching, and student is made to obtain the tune deep to modular circuit
Teaching experiment cognition is tried to grasp；
F is by multiple resistance, multiple in interarea plate module described in one of above-mentioned technical proposal in mono-/bis-pipe amplifier circuit unit
Capacitor, multiple electrolytic capacitors need to select suitable parameter value and single triode or two triodes according to circuit experiment teaching
Line welding debugging forms mono-/bis-pipe amplifying circuit, selects suitable grounding resistance and ground connection in resistor chain and capacitor row
Capacitance accesses ground wire, and the debugging teaching experiment cognition grasp for obtaining mono-/bis-pipe amplifier circuit unit is provided for student；
G is in the above-mentioned step e and mono-/bis-pipe amplifier circuit unit experimental teaching for being independently accessed or replacing access debugging teaching experiment
In step, the teaching experiment course for obtaining circuit and welding teaching knowledge is provided for student；
H is by the integrated transporting discharging chip in interarea plate module described in one of above-mentioned technical proposal in integrated operational amplifier circuit unit, electricity
Resistance, capacitor, diode and voltage-stabiliser tube need that suitable parameter and integrated transporting discharging chip is selected to connect according to selection circuit experimental teaching
Wire bonding debugs to form integrated operational amplifier circuit unit, and the debugging teaching experiment for providing acquisition integrated operational amplifier circuit unit for student is recognized
Know grasp；
I debugs demand according to field research experimental courses, will be multiple in interarea plate module described in one of above-mentioned technical proposal
Independent circuits unit, multiple resistance in mono-/bis-pipe amplifier circuit unit, multiple capacitors, multiple electrolytic capacitors or integrated transporting discharging
Resistance, capacitor, diode and voltage-stabiliser tube in circuit unit are independently accessed or are replaced and accesses to multiple teaching experiments
Analog module makes student obtain different analog module circuit debugging teaching experiment cognitions and grasps；
J debugs demand according to field research experimental courses, by what is be arranged in interarea plate module described in one of above-mentioned technical proposal
Multiple independent components carry out independent object teaching identification, are independently accessed or replace the simulation for accessing to multiple teaching experiments
Circuit module makes student obtain material object and its pin identification judgement of different independent components, and in analog module
Circuit application there is explicit deep teaching experiment cognition to grasp；
K determines that selection uses analog module described in one of above-mentioned technical proposal according to field research experimental courses demand,
Above-mentioned a~j teaching experiment step is repeated, student is obtained and the analog module of multiple and different analog circuit functional effects is taught
The deep cognition of experiment is learned to grasp；
M can be provided for student to upper in conjunction with teaching student using circuit board layouts application software in above-mentioned step c
The progress circuit board layouts design of analog module described in one of technical solution is stated to combine with analog circuit field research
Teaching experiment recognize grasp deeply；
In field research in use, not limited by above-mentioned numbering step sequence, above-mentioned teaching usage method can be according to field research
Demand, flexible choice are determined using one or more steps in sequential steps or above-mentioned teaching usage method.
The beneficial effects of the invention are as follows：Can more preferable culture and improvement student to circuit design manipulative ability, Identify chip energy
The technical ability such as the design application of power and component in circuit layout, improve experiment teaching effect.Make student faster deeper into more
Effective quickly heightened awareness, which is grasped, obtains analog module teaching experiment demand and actual design manipulative ability, be student from
School rapidly enters work position state and provides more effective teaching experiment effect after entering society, without the reality that enters society
It is still that a face is ignorant or state of feeling at a loss that task is received after the post of border.The installation of component front is known convenient for student
Not.Both it can be used and inserted each Teaching Module pcb board being welded, it can also be in the religion that respectively silk-screen and inserting are welded
Learn pcb board on the basis of, using access or alternative parameter device mode enhancing teaching experiment start design and debugging capability,
Impart knowledge to students it is clear and accurate it is visible can be according to can refer to replaceable adjustable.
Detailed description of the invention：
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the pcb board structural schematic diagram of interarea plate module in analog circuit Teaching Experiment Box of the present invention.
Fig. 2 is that the letter symbol silk-screen layer of interarea plate module and circuit theory connect in analog circuit Teaching Experiment Box of the present invention
The structural schematic diagram of line silk-screen layer.
Fig. 3 is that the pcb board structure of DC signal source and power supply module is shown in analog circuit Teaching Experiment Box of the present invention
It is intended to.
Fig. 4 is the pcb board structural schematic diagram of Voltage-Controlled oscillation circuit module in analog circuit Teaching Experiment Box of the present invention.
Fig. 5 is the pcb board structural schematic diagram of integrated operational amplifier circuit module in analog circuit Teaching Experiment Box of the present invention.
Fig. 6 is the pcb board structural schematic diagram of power amplification circuit module in analog circuit Teaching Experiment Box of the present invention.
Fig. 7 is the pcb board structural schematic diagram of differential amplifier circuit module in analog circuit Teaching Experiment Box of the present invention.
Fig. 8 is that the pcb board structure of analog circuit Teaching Experiment Box sound intermediate frequency integrated power amplification circuit module of the present invention is shown
It is intended to.
Fig. 9 is the pcb board structural schematic diagram of ± 12V adjustable DC power supply in analog circuit Teaching Experiment Box of the present invention.
Specific embodiment
Embodiment 1：
Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, in embodiment shown in Fig. 9, a kind of analog circuit Teaching Experiment Box,
Including experimental box, experimental box is configured with the analog module of multiple teaching, and each analog module configures installation weldering
It connects on corresponding independent pcb board, the pcb board of each analog module is at least provided with wiring layer and silk-screen layer, silk-screen
Layer includes top surface silk-screen layer and/or bottom surface silk-screen layer, is equipped on top surface silk-screen layer and/or bottom surface silk-screen layer for circuit of imparting knowledge to students
The circuit theory line silk-screen layer of catenation principle figure and for the letter symbol silk-screen for identifying each component information used of imparting knowledge to students
Layer, circuit theory line silk-screen layer 10 show for teaching experiment and are electrically connected between each component for constituting analog module
Principle, wiring layer 20 show the practical electric wiring connection structure and wires design characteristic of analog module for teaching experiment
Structure, configuration is equipped with several analog circuit test points 40 on wiring layer, and analog circuit test point is located at practical electric wiring connection
In structure, the detection connector being electrically connected with detecting instrument is set on analog circuit test point, detection connector can be connection
Line, connecting column, connection terminal or connection plug connector, the setting of analog circuit test point is according to each different analog modules
Circuit characteristic and configure setting；Multiple analog modules include but is not limited to interarea plate module, ± 12V adjustable DC power supply mould
Block, DC power supplier, audio power amplifying circuit module, direct current differential amplifier circuit module, Voltage-Controlled oscillation circuit module and
Discrete power amplification circuit module, set in interarea plate module multiple sensors circuit interface, extension feature board and it is multiple have it is only
The independent circuits debugging unit of vertical circuit function and/or multiple independent entry device functions.± 12V adjustable DC power module and straight
Galvanic electricity source module provides supply voltage used in simulation teching for each analog module, has both saved and has used independent power-supply device instrument
Expense needed for device provides authentic and valid deep analog circuit teaching experiment effect again for student instruction, leaves school for student
Enter society the sturdy circuit design knowledge of post offer, and faster stronger step into adapts to social work, research or the teaching hilllock Deng Ge
Position.Wiring layer 20 includes layer top layer wiring layer, bottom wiring layer and intermediate wiring layer layer, according to the simulation electricity of institute's teaching of use experiment
Road module or field research test demand, and analog module is designed to single circuit pcb board, odt circuit pcb board and more
Layer circuit pcb board, single circuit pcb board have bottom wiring layer and top layer silk-screen layer, and top layer silk-screen layer includes letter symbol silk
It prints layer 30 and circuit theory line silk-screen layer 10, odt circuit pcb board includes layer top layer wiring layer, bottom wiring layer, top layer silk-screen
Layer and bottom overlay, top layer silk-screen layer and bottom overlay include letter symbol silk-screen layer 30 and circuit theory line silk-screen
Layer 10 realizes the electrical cloth between layer top layer wiring layer and bottom wiring layer by via hole between layer top layer wiring layer and bottom wiring layer
Line connection, multilayer circuit pcb board have and also have the intermediate wiring layer layer that bright can not see of several layers except double-layer circuit board characteristic,
The electricity between each layer wiring layer is realized by through-hole or half-blind hole between layer top layer wiring layer, intermediate wiring layer layer and bottom wiring layer
Gas is routed connection requirement, and faster more deep effective obtain of student is made to be designed to reality on the basis of reliable and effective circuit diagram
Single circuit pcb board, odt circuit pcb board and/or the multilayer circuit pcb board of border production requirement set to meet real work post
Meter demand.Component information includes that the component title of each different components of teaching experiment cognition judgement identification is provided for student
（The teaching experiments identification information such as photo resistance, thermistor, buzzer, loudspeaker, is not listed one by one, same as below）, first device
Part symbol（The teaching experiments identification information such as R1, C10, U1, D1, J1, Q3）, component parameter（10K,100uf,5.1V,DC15V,
AC9V, 8050,7809 teaching experiment identification information of U1）With component pin symbolic information（B, c, e, A, k, 1,2,3 etc. are imparted knowledge to students
Experimental identification information）.Wires design feature structure includes the wiring pads structure for providing teaching experiment cognition for student, is routed
Wire structures and letter are electrically planned to Structure Planning, electrostatic screen wire structures, wiring maximum operating currenbt Structure Planning, via hole
Number isolation wire structures.Wiring pads structure is set according to the electrical characteristic demand and integrated circuit of component in analog module
Meter demand is arranged to the circular pad of different dimensions, hexagon pad, oval pads or square pads, makes student's butt welding
The designed teaching experiment own profound of dish structure explicitly recognizes grasp；Wiring moves towards Structure Planning and considers to combine used member
Reasonable routing traces Structure Planning, electrostatic screen wire structures root is arranged in device electrical characteristic and pcb board mounting arrangements demand
It is needed according to the electrical characteristic of analog module, uses the wire structures of electrostatic screen mode when necessary, latticed equal screen is set
Worn-out wire structures meet wiring character teaching experiment demand；Maximum operating currenbt Structure Planning is routed according to each analog circuit mould
Reasonable wiring width is arranged to meet the maximum of different components in the operating current characteristics demand of component used in block
Operating current route planning demand；Signal isolation wire structures be more preferably meet component inserting be welded on PCB after it is normal
Working performance state needs to be arranged on pcb board certain wiring isolation structure, notch is isolated in such as setting, electric isolution is climbed in setting,
The wiring isolation structure such as heat-insulated isolation is set, preferably to improve the wiring isolation junction for realizing analog module working performance
Structure；By various wires design feature structures for student provide obtain pcb board wiring material object combined with circuit theory, PCB cloth
The wiring rule that line design software considers grasps student faster deeper into more effective quickly heightened awareness and obtains analog circuit
Demand and actual design manipulative ability are tested in modular instruction, and leaving school to enter society for student rapidly enters work position state and provide
More effective teaching experiment effect is still that a face is ignorant without receiving task after the practical post that enters society
Or state of feeling at a loss.Multiple analog modules further include that the two-stage ac amplifier circuit of teaching experiment cognition is provided for student
Module, negative feedback amplifier circuit module penetrate grade and follow circuit module, Linear applications of OA circuit module, amplifier nonlinear application
Circuit module, wave generator circuit module, active filter module, voltage comparator module, the vibration of integrated circuit RC sine wave
Swing circuit module, integrated stable voltage circuit module, voltage/frequency conversion circuit module, sound light control circuit module, programmable amplifier
Circuit module, audifier module, circuit for controlling motor and temperature circuit module.Circuit theory line silk-screen layer and Chinese character
Number silk-screen layer uses different silk-screen color structures, and the letter symbol position of letter symbol silk-screen layer corresponds to each component nearby
Position.The multiple independent circuits debugging units being arranged in interarea plate module include that the collection of teaching experiment cognition is provided for student
At operational amplifier circuit unit, large power triode to pipe unit, mono-/bis-pipe amplifier circuit unit and extension function plate unit；Extension
Function plate unit be equipped with multiple independent pads and/or equipped with by multiple pads and connection pad between connection cover thin copper film structure
At multiple independent pad groups of extension function, element inserting column or element inserting pad are set in multiple independent pad groups；Mono-/bis-pipe is put
Big circuit unit is equipped with jack and its pad that multiple pre-inserted welding equipments connect hole location, inserts and is welded on multiple jacks and its pad
Two triodes, multiple resistance, the multiple capacitors, Duo Ge electricity of mono-/bis-pipe amplifier circuit unit are constituted for inserting welding debugging
Capacitor is solved, includes multiple individual resistors, capacitor, electrolytic capacitor and more in multiple resistance, multiple capacitors and multiple electrolytic capacitors
The resistor chain of a default connection ground wire and capacitor row；Integrated operational amplifier circuit unit is equipped with the jack that multiple pre-inserted welding equipments connect hole location
And its pad, it is equipped with that multiple pre-inserted welding equipments connect the jack of hole location and its pad inserting is welded with two integrated transporting discharging chips and more
Resistance, capacitor, diode and the voltage-stabiliser tube of a independent inserting welding.The multiple independent circuits unit packets being arranged in interarea plate module
It includes and provides multiple independent components 50 of teaching experiment cognition, multiple independent component post pole body microphones, hall sensing for student
Device, photo resistance, thermistor, honey device, light emitting diode, adjustable resistor, relay and be configured with multiple and different electricity
Resistance, capacitor and the diode of parameter value are hindered, multiple interarea plate modules are equipped with pin corresponding with each independent component and pacify
Jack position 31 and with each pin installation hole location be mutually routed connection draw connecting holes position and/or detection hole location；It is the multiple only
While vertical component provides teaching experiment cognition in teaching experiment for student, also provides and be independently accessed for teaching experiment
Or replacement accesses the analog module progress circuit debugging teaching of multiple teaching.Circuit theory line silk-screen layer is located at PCB
Have in the pcb board layer surface where component on plate, in the pcb board layer surface including top layer face and/or round floor, circuit theory
Connecting line layer silk-screen only provides teaching cognition indicating circuit catenation principle, direct corresponding circuits catenation principle for student.On experimental box
Plant-grid connection inserting groove configured with each analog module, each analog module be equipped with plug-in power interface with from
The plant-grid connection accessed at power interface is routed, the inserting groove and ± 12V regulated power supply mould configured on power interface and experimental box
Block or DC power supplier are connected power supply.01 interface unit of direct current signal is provided in interarea plate module, DC power supply 02 connects
Mouth unit, 04 interface unit of 03 interface unit of adjustable DC power supply and AC power source, direct current signal interface unit, DC power supply connect
Interface Terminal and circuit test point, interface end are set on mouth unit, adjustable DC power interface unit and AC power interface unit
The sub power interface with each analog module is electrically connected.
Experimental project uses modular form, greatly facilitates student experimenting.Design, comprehensive experiment use independent component
Overlap joint, can also cooperate multi-functional space of a whole page wrapper sheet, can training student analog circuit integrated application, design and innovation ability.（1）Symbol
Quasi- electronic technical experiment teaching outline is molded, using to each analog module pcb board comprehensive design, using the small board group of module
Design is closed, it is pluggable to be electrically connected；（2）Component is using bright dress form and is independently mounted on pcb board；（3）Experimental plate
Test point, which is arranged, can meet the test request of measuring instrument；（4）Multiple independent components 50 and multiple and different specifications parameters are provided
Spare component more preferably meet design synthesis teaching experiment and parameter testing requirement；（5）Design and comprehensive must be met
The requirement of experiment.Pluggable Multi-function extension plate；The sensors such as temperature, sound, light are provided；There is provided speaker, motor, relay,
The components such as LED, buzzer, multichannel electronic analog switch, ice making piece；Element inserting column for extension is provided.It also avoids simultaneously
Student lacks the security hidden trouble that the circuit experience of building is be easy to cause when learning simulation electric circuit teaching is tested.
Furthermore, it is contemplated that pcb board Butut is related to the number of plies for having different, including letter symbol silk-screen layer, circuit theory connect
The composite factors such as line silk-screen layer, single-layer or multi-layer wiring layer and the different bond pad shapes size of different line widths, and it is further contemplated that
The requirement that patent specification attached drawing is submitted is must to be unified for artwork master, thus the present patent application is being submitted Figure of description and plucked
When wanting attached drawing, to consider above-mentioned factor, specially taken on the drawing of submission to delete part wiring or circuit theory and connect
The modes such as filament print obtain relatively sharp visible Figure of description display effect with this；Because if taking reservation all
Reconvert is at black and white drawing on the basis of the wiring and silk-screen effect of original image paper, then each pcb board provided by institute's the present patent application
Structural schematic diagram drawing will be essentially the black block of large format, thus the present patent application submits pcb board drawing specially submitting
Drawing on taken to delete in a manner of part wiring or circuit theory line silk-screen etc., it is relatively sharp visible to obtain with this
Figure of description display effect, therefore cannot in this, as to the incomplete limitation of analog module scheme of the present invention because
Element；The Figure of description of the present patent application provides only partial simulation circuit module to make scheme referring to displaying, other moulds simultaneously
Quasi- circuit module can refer to the present patent application technical solution thinking, and production forms required teaching experiment analog module PCB
The circuit for having above-mentioned each function in the prior art can be used in plate, the circuit components that welding is inserted on each analog module
Principle is made, thus the present patent application technical solution does not provide circuit diagram herein yet, can not be in this, as to this
The incomplete limiting factor of invention analog module scheme.
Embodiment 2：
A kind of analog circuit Teaching Experiment Box teaching usage method, including following teaching usage method
A is accorded with according on letter symbol silk-screen layer described in embodiment 1 including component title, component symbol and component pin
The each component information and practical component good in corresponding position erecting and welding of number information, make student to component
Material object and pin identification judgement there is explicit deep teaching experiment understanding to grasp；
B is moved towards according to the circuit theory line that silk-screen on circuit theory line silk-screen layer described in embodiment 1 is recorded in conjunction with correspondence
The teaching experiment of analog module circuit diagram makes student to each reality for constituting analog module described in embodiment 1
Actual circuit principle line trend of the matter-element device in analog module has explicit deep teaching experiment cognition
It grasps；
The wiring character that c is recorded according to wiring layer described in embodiment 1 makes student to composition analog circuit described in embodiment 1
Wiring pads structure on module pcb board, wiring move towards Structure Planning, electrostatic screen wire structures, wiring current programming structure,
Via hole electrically plans that wire structures and signal isolation wire structures have explicit deep wiring designed teaching experiment
Cognition is grasped；
D powers on described in embodiment 1 or mutually insert with the plant-grid connection inserting groove of analog module each on experimental box
It accesses after power supply, teaching of use experiment detector detects each analog circuit test point being arranged on analog module
Teaching experiment, the teaching experiment for obtaining explicit to each analog module deep working principle and working result recognize the palm
It holds；
Multiple independent circuits units described in embodiment 1 are independently accessed or are replaced access multiple teaching described in embodiment 1 and use by e
Analog module carry out circuit debugging teaching, so that student is obtained deep to the modular circuit debugging teaching experiment cognition palm
It holds；
F is by multiple resistance, multiple capacitors, multiple in interarea plate module described in embodiment 1 in mono-/bis-pipe amplifier circuit unit
Electrolytic capacitor needs that suitable parameter value and single triode or two triode lines is selected to weld according to circuit experiment teaching
Debugging forms mono-/bis-pipe amplifying circuit, selects suitable grounding resistance to connect with ground capacity value in resistor chain and capacitor row
Enter ground wire, the debugging teaching experiment cognition grasp for obtaining mono-/bis-pipe amplifier circuit unit is provided for student；
G is in the above-mentioned step e and mono-/bis-pipe amplifier circuit unit experimental teaching for being independently accessed or replacing access debugging teaching experiment
In step, the teaching experiment course for obtaining circuit and welding teaching knowledge is provided for student；
H by interarea plate module described in embodiment 1 in integrated operational amplifier circuit unit integrated transporting discharging chip, resistance, capacitor,
Diode and voltage-stabiliser tube according to selection circuit experimental teaching need that suitable parameter and integrated transporting discharging chip line is selected to weld to adjust
Examination forms integrated operational amplifier circuit unit, and the debugging teaching experiment cognition grasp for obtaining integrated operational amplifier circuit unit is provided for student；
I debugs demand according to field research experimental courses, by multiple independent circuits in interarea plate module described in embodiment 1
Unit, multiple resistance in mono-/bis-pipe amplifier circuit unit, multiple capacitors, multiple electrolytic capacitors or integrated operational amplifier circuit unit
In resistance, capacitor, diode and voltage-stabiliser tube be independently accessed or replaced the analog circuit for accessing to multiple teaching experiments
Module makes student obtain different analog module circuit debugging teaching experiment cognitions and grasps；
J debugs demand, the multiple independences being arranged in interarea plate module described in embodiment 1 according to field research experimental courses
Component carries out independent object teaching identification, is independently accessed or replaces the analog circuit mould for accessing to multiple teaching experiments
Block makes student obtain material object and its pin identification judgement of different independent components, and the circuit in analog module
It is grasped using there is explicit deep teaching experiment to recognize；
K determines that selection uses analog module described in embodiment 1, repeats above-mentioned a according to field research experimental courses demand
~j teaching experiment step obtains student deep to the analog module teaching experiment of multiple and different analog circuit functional effects
Cognition is carved to grasp；
M can be provided for student to reality in conjunction with teaching student using circuit board layouts application software in above-mentioned step c
It applies analog module described in example 1 and carries out the teaching experiment that circuit board layouts design is combined with analog circuit field research
Deep cognition is grasped；
In field research in use, not limited by above-mentioned numbering step sequence, above-mentioned teaching usage method can be according to field research
Demand, flexible choice are determined using one or more steps in sequential steps or above-mentioned teaching usage method.Other are the same as implementation
Example 1 is identical.
Can more preferable culture and improvement student to circuit design manipulative ability, Identify chip ability and component in circuit cloth
The technical ability such as the design application in figure, improve experiment teaching effect.Slap student faster deeper into more effective quickly heightened awareness
It holds and obtains analog module teaching experiment demand and actual design manipulative ability, leaving school to enter society for student rapidly enters work
Make post state and more effective teaching experiment effect is provided, appoints without receiving work after the practical post that enters society
Business is still that a face is ignorant or state of feeling at a loss.
Claims (10)
1. a kind of analog circuit Teaching Experiment Box, including experimental box, it is characterised in that：Experimental box is configured with the mould of multiple teaching
Quasi- circuit module, each analog module configure erecting and welding on corresponding independent pcb board, each analog circuit
The pcb board of module is at least provided with wiring layer and silk-screen layer, and silk-screen layer includes top surface silk-screen layer and/or bottom surface silk-screen layer, in top surface
Silk-screen layer and/or bottom surface silk-screen layer are equipped with for the circuit theory line silk-screen layer for circuit connection schematic diagram of imparting knowledge to students and for teaching
The letter symbol silk-screen layer of knowledge each component information not used, circuit theory line silk-screen layer show structure for teaching experiment
At principle is electrically connected between each component of analog module, wiring layer shows analog module for teaching experiment
Practical electric wiring connection structure and wires design feature structure, configuration is equipped with several analog circuit test points, mould on wiring layer
Quasi- circuit test point is located in practical electric wiring connection structure, sets on analog circuit test point and is electrically connected with detecting instrument
Connector is detected, the setting of analog circuit test point configures setting according to the circuit characteristic of each different analog modules；
Multiple analog modules include but is not limited to interarea plate module, ± 12V adjustable DC power module, DC power supplier, sound
Frequency integrated power amplification circuit module, direct current differential amplifier circuit module, Voltage-Controlled oscillation circuit module and discrete power amplification electricity
Road module, set in interarea plate module multiple sensors circuit interface, extension feature board and it is multiple have the function of independent circuits and/or
The independent circuits debugging unit of multiple independent entry device functions.
2. analog circuit Teaching Experiment Box described in accordance with the claim 1, it is characterised in that：The component information is including being
Student provides the component title of each different components of teaching experiment cognition judgement identification, component symbol, component parameter
With component pin symbolic information.
3. analog circuit Teaching Experiment Box described in accordance with the claim 1, it is characterised in that：The wires design feature structure
Including providing the wiring pads structure of teaching experiment cognition for student, Structure Planning, electrostatic screen wire structures, cloth are moved towards in wiring
Line maximum operating currenbt Structure Planning, via hole electrically plan wire structures and signal isolation wire structures；Pcb board uses single layer
Plate, doubling plate or Multilayer Structure, the wiring layer on pcb board includes layer top layer wiring layer, bottom wiring layer and/or intermediate wiring layer
Layer, single circuit pcb board have bottom wiring layer and top layer silk-screen layer, and top layer silk-screen layer includes letter symbol silk-screen layer and circuit
Principle line silk-screen layer；Odt circuit pcb board includes layer top layer wiring layer, bottom wiring layer, top layer silk-screen layer and bottom overlay,
Top layer silk-screen layer and bottom overlay include letter symbol silk-screen layer and circuit theory line silk-screen layer, layer top layer wiring layer and bottom
Realize that the electric wiring between layer top layer wiring layer and bottom wiring layer connects by via hole between layer wiring layer；Multilayer circuit PCB
Plate is with the intermediate wiring layer layer that bright can not also see with several layers except double-layer circuit board characteristic, layer top layer wiring layer, middle layer
Realize that the electric wiring between each layer wiring layer connects by via hole between wiring layer and bottom wiring layer.
4. analog circuit Teaching Experiment Box described in accordance with the claim 1, it is characterised in that：Multiple analog modules
Further include provided for student teaching experiment cognition two-stage ac amplifier circuit module, negative feedback amplifier circuit module, penetrate grade with
With circuit module, Linear applications of OA circuit module, amplifier non--linear applied circuits module, wave generator circuit module, active
Filter module, voltage comparator module, integrated circuit RC sine wave oscillation circuit module, integrated stable voltage circuit module, electricity
Pressure/freq converting circuit module, sound light control circuit module, programmable amplifier circuit module, audifier module, motor control
Circuit and temperature circuit module processed.
5. analog circuit Teaching Experiment Box described in accordance with the claim 1, it is characterised in that：The circuit theory line silk-screen
Layer and letter symbol silk-screen layer use different silk-screen color structures, and the letter symbol position of letter symbol silk-screen layer corresponds to nearby
Each component position.
6. analog circuit Teaching Experiment Box described in accordance with the claim 1, it is characterised in that：It is arranged in the interarea plate module
Multiple independent circuits debugging units include provided for student teaching experiment cognition integrated operational amplifier circuit unit, high-power three pole
Pipe is to pipe unit, mono-/bis-pipe amplifier circuit unit and extension function plate unit；It extends function plate unit and is equipped with multiple independent welderings
Disk and/or equipped with covering multiple independent pads that thin copper film constitutes extension function by the connection between multiple pads and connection pad
Group sets element inserting column or element inserting pad in multiple independent pad groups；Mono-/bis-pipe amplifier circuit unit is equipped with multiple pre-inserted
Welding equipment connects the jack and its pad of hole location, on multiple jacks and its pad inserting be welded with for insert welding debugging constitute it is single/
Two triodes, multiple resistance, multiple capacitors, the multiple electrolytic capacitors of two-tube amplifier circuit unit, multiple resistance, multiple capacitors
With in multiple electrolytic capacitors include multiple individual resistors, capacitor, electrolytic capacitor and it is multiple it is default connection ground wire resistor chain and
Capacitor row；Integrated operational amplifier circuit unit is equipped with the jack and its pad that multiple pre-inserted welding equipments connect hole location, is equipped with multiple pre-inserted
Resistance, the electricity that welding equipment connects the jack of hole location and its pad inserting is welded with two integrated transporting discharging chips and multiple independent insertings are welded
Appearance, diode and voltage-stabiliser tube.
7. analog circuit Teaching Experiment Box described in accordance with the claim 1, it is characterised in that：It is arranged in the interarea plate module
Multiple independent circuits units include provided for student teaching experiment cognition multiple independent components, multiple independent component columns
Electret microphone, Hall sensor, photo resistance, thermistor, honey device, light emitting diode, adjustable resistor, relay and
Resistance, capacitor and diode configured with multiple and different resistance parameter values, multiple interarea plate modules are equipped with and each independent entry device
The corresponding pin of part assigns hole location and draws connecting holes position and/or detection hole with what each pin installation hole location was mutually routed connection
Position；It is also student instruction reality while the multiple independent component provides teaching experiment cognition in teaching experiment for student
It tests to provide and is independently accessed or replaces the analog module for accessing multiple teaching progress circuit debugging teaching.
8. analog circuit Teaching Experiment Box described in accordance with the claim 1, it is characterised in that：The circuit theory line silk-screen
Layer is located on pcb board in the pcb board layer surface where having component, the pcb board layer surface including top layer face and/or round floor
On, circuit theory connecting line layer silk-screen only provides teaching cognition indicating circuit catenation principle for student, and direct corresponding circuits connection is former
Reason.
9. analog circuit Teaching Experiment Box described in accordance with the claim 1, it is characterised in that：Configured with each on the experimental box
The plant-grid connection inserting groove of analog module, each analog module be equipped with plug-in power interface with from power interface
The plant-grid connection of place's access is routed, the inserting groove and ± 12V regulated power supply module or direct current configured on power interface and experimental box
Power module is connected power supply.
10. according to analog circuit Teaching Experiment Box described in claim 1 or 6 or 7, it is characterised in that：The interarea template die
Direct current signal interface unit, dc power interface unit, adjustable DC power interface unit and AC power source is provided on block to connect
Mouth unit, direct current signal interface unit, dc power interface unit, adjustable DC power interface unit and AC power interface list
Interface Terminal and circuit test point are set in member, the power interface of Interface Terminal and each analog module is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810853596.8A CN108922348A (en) | 2018-07-30 | 2018-07-30 | Analog circuit teaching experiment box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810853596.8A CN108922348A (en) | 2018-07-30 | 2018-07-30 | Analog circuit teaching experiment box |
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| Publication Number | Publication Date |
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| CN108922348A true CN108922348A (en) | 2018-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810853596.8A Pending CN108922348A (en) | 2018-07-30 | 2018-07-30 | Analog circuit teaching experiment box |
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| CN110517549A (en) * | 2019-08-29 | 2019-11-29 | 宁波工程学院 | Electronic Design Competition training platform and its training application method |
| CN113224968A (en) * | 2021-06-07 | 2021-08-06 | 华北电力大学 | Power electronic SPWM inversion experiment platform |
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Address after: 315000 No. 201 Fenghua Road, Jiangbei District, Ningbo City, Zhejiang Province Applicant after: Ningbo University of Technology Address before: 315016 Cui Bai Road, Haishu District, Ningbo, Zhejiang Province, No. 89 Applicant before: Ningbo University of Technology |
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Application publication date: 20181130 |