CN209103638U - Circuit theory experimental provision - Google Patents
Circuit theory experimental provision Download PDFInfo
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- CN209103638U CN209103638U CN201820380417.9U CN201820380417U CN209103638U CN 209103638 U CN209103638 U CN 209103638U CN 201820380417 U CN201820380417 U CN 201820380417U CN 209103638 U CN209103638 U CN 209103638U
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- 238000002474 experimental method Methods 0.000 claims abstract description 33
- 238000005259 measurement Methods 0.000 claims description 79
- 239000003990 capacitor Substances 0.000 claims description 74
- 230000005611 electricity Effects 0.000 claims description 47
- 238000012795 verification Methods 0.000 claims 2
- 238000012360 testing method Methods 0.000 abstract description 14
- 238000013461 design Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 16
- 230000001105 regulatory effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 238000000691 measurement method Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012905 input function Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
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Abstract
The utility model discloses a kind of circuit theory experimental provisions, including power module, experiment circuit module and several groups measuring instrumentss, and carry out the switching of circuit components using toggle switch in experiment circuit module；Power module power supply；The working condition of circuit is realized and shown to experiment circuit module；Measuring instrumentss connect with experiment circuit module and measure and display circuit parameter.This circuit theory experimental provision provided by the utility model, simplify the design of connecting line, the replacement of component is not necessarily to insert by dialling, it need to only be can be realized by toggle switch, the input of all modules, output, power supply are designed with test wrapper, facilitate student using testing tools such as signal generator, oscillographs, and the utility model is easy to use, external wire and wire jumper are less, and circuit is simple and reliable.
Description
Technical field
The utility model is specifically related to a kind of circuit theory experimental provision.
Background technique
With the development of economic technology, education is by country's pendulum in extremely important position.
Currently, either university or middle school, the experiment of circuit theory are the important sets of science and engineering profession or Physics Course
At part.But since there is certain risies and uncertainty for patch circuit, now in teaching process,
Circuit theory experimental box is widely used in a variety of applications.
But now widely used circuit theory experimental box is generally led using external to meet biggish flexibility
Line or wire jumper change the change that circuit structure realizes different component parameters；If original resistance is 100 ohm, now want to be revised as
It 1000 ohm, generallys use jumper and switches over；And wire jumper is easy poor contact, easily broken and easy to be lost；Meanwhile circuit is real
The voltage or electric current for usually requiring while measuring multiple points are tested, traditional approach generallys use external measuring instrumentss, once it needs to survey
The voltage or electric current for measuring 2 points or more will make experimental bench tool crowded, mixed and disorderly, Yi Fasheng accident；Finally, Experiment of Electrical Circuits is usually wanted
Electric current in measuring circuit, and the measurement of electric current generally requires the former route of disconnection, traditional method is to use jump in the point for needing to measure
Line connection, and wire jumper is easy poor contact and the very thin bad contact of wire jumper contact pin, bad fixation measuring test pencil, is not easy to experiment people
The operation of member.
Utility model content
The purpose of this utility model is to provide the less and simple and reliable electricity of a kind of easy to use, external wire and wire jumper
Road principle test device.
This circuit theory experimental provision provided by the utility model, including power module and experiment circuit module, are also wrapped
Several groups measuring instrumentss are included, and carry out the switching of circuit components using toggle switch in experiment circuit module；Power module
For providing power supply for experimental circuit；Experiment circuit module is for realizing the working condition with displaying circuit；Measuring instrumentss and reality
Circuit module is tested to connect and measure and display circuit parameter.
The measuring instrumentss include the ammeter of the voltmeter and several groups difference range of several groups difference range.
The measuring instrumentss are connect by wire jumper with experiment circuit module.
The experiment circuit module includes Kirchhoff's theorem and superposition theorem experimental circuit, Thevenin's theorem and promise
Theorem experimental circuit, single order and the series-parallel frequency-selective network experimental circuit of second order dynamic circuit experimental circuit, RC, two-port network and mutually
Easy theorem experimental circuit, RLC series resonant circuit experimental circuit and spare component experimental circuit.
The Kirchhoff's theorem and superposition theorem experimental circuit includes the first circuit first voltage source input port, the
One the first toggle switch of circuit, the first circuit first resistor, first the first current measurement point of circuit, the first circuit second resistance,
First circuit second voltage input port, first the second toggle switch of circuit, the first circuit 3rd resistor, first the second electricity of circuit
Flow measurement point, the 4th resistance of the first circuit, the first circuit third toggle switch, the first circuit first diode, the first circuit
Three current measurement points, the 5th resistance of the first circuit, the first circuit first voltage table tie point, the connection of the first circuit second voltage table
Point, the first circuit tertiary voltage table tie point, first the first shorting stub of circuit and first the second shorting stub of circuit；First circuit
One toggle switch, first the second toggle switch of circuit and the first circuit third toggle switch are double-point double-throw switch；First electricity
Non-moving end one end of the first toggle switch of road connects after connecting with the first circuit first resistor and first the first current measurement point of circuit
The first circuit first voltage table tie point is connect, the non-moving end other end of first the first toggle switch of circuit passes through the first circuit second
The first circuit second voltage table tie point is connected after resistance series connection, the movable end both ends connection of first the first toggle switch of circuit the
First the first shorting stub of circuit of one circuit first voltage source input terminal or connection；The non-moving end of first the second toggle switch of circuit
One end is connected to the first circuit first voltage table company after connecting with the first circuit 3rd resistor, first the second current measurement point of circuit
The non-moving end other end of contact, first the second toggle switch of circuit connects the first circuit tertiary voltage table tie point；First circuit
Non-moving end one end of third toggle switch connects the first circuit tertiary voltage table tie point, and the first circuit third toggle switch is not
The moved end other end connects the first circuit second voltage table tie point, the movable end both ends connection the of the first circuit third toggle switch
The first circuit first diode of the 4th resistance of one circuit or connection；First circuit first voltage table tie point and the first circuit
The 5th resistance of the first circuit third current measurement point and the first circuit is serially connected between two voltmeter tie points.
The Thevenin's theorem and Nortons theorem experimental circuit includes second circuit first resistor, the second electricity of second circuit
Resistance, second circuit 3rd resistor, the 4th resistance of second circuit, the 5th resistance of second circuit, the first current measurement point of second circuit,
The first toggle switch of second circuit, the first shorting stub of second circuit, second circuit current signal input and second circuit voltage
Signal input part；Non-moving end one end of the first toggle switch of second circuit connects simultaneously after passing through the first current measurement point of second circuit
Connect one end of second circuit second resistance and second circuit voltage signal inputs, the non-moving end of the first toggle switch of second circuit
The other end connects the other end of second circuit 3rd resistor and second circuit current signal input simultaneously, and second circuit first is dialled
Movable end both ends connection the 5th resistance of second circuit of dynamic switch or connection the first shorting stub of second circuit；Second circuit voltage
The other end of input terminal connects second circuit first resistor and second circuit third electricity after passing through the 4th resistance of second circuit simultaneously
Resistance；One end of second circuit current signal input then connects second circuit first resistor and second circuit second resistance simultaneously.
The single order and second order dynamic circuit experimental circuit includes that tertiary circuit first switch, tertiary circuit second are opened
It closes, tertiary circuit third is closed, the switch of tertiary circuit the 4th, the switch of tertiary circuit the 5th, the switch of tertiary circuit the 6th, tertiary circuit
7th switch, the switch of tertiary circuit the 8th, the switch of tertiary circuit the 9th, the switch of tertiary circuit the tenth, tertiary circuit the 11st are opened
It closes, the switch of tertiary circuit the 12nd, the switch of tertiary circuit the 13rd, the switch of tertiary circuit the 14th, tertiary circuit the 15th are opened
Pass, tertiary circuit first resistor, tertiary circuit second resistance, tertiary circuit 3rd resistor, the 4th resistance of tertiary circuit, third electricity
The 5th resistance of road, the 6th resistance of tertiary circuit, the 7th resistance of tertiary circuit, tertiary circuit first capacitor, the second electricity of tertiary circuit
Appearance, tertiary circuit third capacitor, the 4th capacitor of tertiary circuit, the 5th capacitor of tertiary circuit, the 6th capacitor of tertiary circuit, third electricity
The first inductance of road, the second inductance of tertiary circuit, tertiary circuit voltage signal inputs and tertiary circuit voltage signal output end；The
The cathode of three-circuit voltage signal inputs and the cathode of tertiary circuit voltage signal output end are directly connected to；Tertiary circuit first
Switch is connected to the anode and tertiary circuit voltage of tertiary circuit voltage signal inputs after connecting with tertiary circuit first resistor
Between the anode of signal output end；Tertiary circuit second switch is connected to tertiary circuit electricity after connecting with tertiary circuit second resistance
It presses between the anode of signal input part and the anode of tertiary circuit voltage signal output end；Tertiary circuit third switch and third electricity
The anode and tertiary circuit voltage signal output end of tertiary circuit voltage signal inputs are connected to after the series connection of road first capacitor
Between anode；The switch of tertiary circuit the 4th is connected to tertiary circuit voltage signal inputs after connecting with the second capacitor of tertiary circuit
Anode and tertiary circuit voltage signal output end anode between；The switch of tertiary circuit the 5th and tertiary circuit 3rd resistor string
It is connected to after connection between the anode of tertiary circuit voltage signal output end and the cathode of tertiary circuit voltage signal output end；Third
The switch of circuit the 6th is connected to the anode and third of tertiary circuit voltage signal output end after connecting with the 4th resistance of tertiary circuit
Between the cathode of circuit voltage signal output end；The switch of tertiary circuit the 7th is connected to the after connecting with the 5th resistance of tertiary circuit
Between the anode of three-circuit voltage signal output end and the cathode of tertiary circuit voltage signal output end；Tertiary circuit the 8th switchs
The anode and tertiary circuit voltage signal of tertiary circuit voltage signal output end are connected to after connecting with the 6th resistance of tertiary circuit
Between the cathode of output end；The switch of tertiary circuit the 9th is connected to tertiary circuit voltage letter after connecting with the 7th resistance of tertiary circuit
Number between the anode of output end and the cathode of tertiary circuit voltage signal output end；The switch of tertiary circuit the tenth and tertiary circuit the
The anode of tertiary circuit voltage signal output end and the cathode of tertiary circuit voltage signal output end are connected to after the series connection of three capacitors
Between；The switch of tertiary circuit the 11st is connected to tertiary circuit voltage signal output end after connecting with the 4th capacitor of tertiary circuit
Between anode and the cathode of tertiary circuit voltage signal output end；The switch of tertiary circuit the 12nd and the 5th capacitor string of tertiary circuit
It is connected to after connection between the anode of tertiary circuit voltage signal output end and the cathode of tertiary circuit voltage signal output end；Third
Circuit the 13rd is switched connect with the 6th capacitor of tertiary circuit after be connected to the positive of tertiary circuit voltage signal output end and the
Between the cathode of three-circuit voltage signal output end；The switch of tertiary circuit the 14th connects after connecting with the first inductance of tertiary circuit
Between the anode of tertiary circuit voltage signal output end and the cathode of tertiary circuit voltage signal output end；Tertiary circuit the tenth
Five switches are connected to the anode and tertiary circuit electricity of tertiary circuit voltage signal output end after connecting with the second inductance of tertiary circuit
Between the cathode for pressing signal output end.
The series-parallel frequency-selective network experimental circuit of the RC includes the 4th circuit voltage signal input part, the 4th circuit first
Switch, the 4th circuit first resistor, the 4th circuit first capacitor, the 4th circuit second switch, the 4th circuit second resistance, the 4th
The second capacitor of circuit, the 4th circuit third switch, the 4th circuit 3rd resistor, the 4th circuit third capacitor, the 4th circuit the 4th
Switch, the 4th resistance of the 4th circuit, the 4th capacitor of the 4th circuit and the 4th circuit voltage signal output end；4th circuit voltage letter
The cathode of the cathode and the 4th circuit voltage signal output end of number input terminal is directly connected to；4th circuit first switch, the 4th electricity
The anode and the 4th electricity of the 4th circuit voltage signal input part are connected to after road first resistor and the series connection of the 4th circuit first capacitor
Between the anode of road voltage signal output end；4th circuit third switch, the 4th circuit 3rd resistor and the 4th circuit third electricity
It is connected between the anode of the 4th circuit voltage signal input part and the anode of the 4th circuit voltage signal output end after holding series connection；
After 4th circuit second resistance and the 4th circuit the second capacitor are in parallel, then after connect with the 4th circuit second switch, reconnection exists
Between the anode of 4th circuit voltage signal output end and the cathode of the 4th circuit voltage signal output end；The 4th electricity of 4th circuit
Resistance and the 4th capacitor of the 4th circuit are in parallel, then after connect with the 4th circuit the 4th switch, reconnection is in the 4th circuit voltage signal
Between the anode of output end and the cathode of the 4th circuit voltage signal output end.
The two-port network and reciprocal theorem experimental circuit includes the 5th circuit voltage signal first input port, the 5th
The second input port of circuit voltage signal, the 5th circuit voltage signal third input port, the 5th circuit voltage signal the 4th are defeated
Inbound port, the 5th the first current measuring interface of circuit, the 5th the second current measuring interface of circuit, the 5th circuit third current measurement
Interface, the 4th current measuring interface of the 5th circuit, the 5th circuit first resistor, the 5th circuit second resistance, the 5th circuit third
Resistance, the 4th resistance of the 5th circuit, the 5th resistance of the 5th circuit and the 6th resistance of the 5th circuit；5th circuit voltage signal first
The cathode of input port and the cathode of the 5th the second input port of circuit voltage signal are directly connected to, the 5th circuit voltage signal
The anode of one input port is divided by signal after the 5th the first current measuring interface of circuit and the series connection of the 5th circuit first resistor
Two-way, signal connects the cathode of the 5th circuit voltage signal first input port by the 5th circuit second resistance all the way, another
Road signal passes through connection the 5th circuit voltage letter after the 5th the second current measuring interface of circuit and the series connection of the 5th circuit second resistance
The anode of number the second input port；The cathode and the 5th circuit voltage signal the 4th of 5th circuit voltage signal third input port
The cathode of input port is directly connected to, and the anode of the 5th circuit voltage signal third input port passes through the 5th circuit third electric current
Signal is divided into two-way after measurement interface, and signal is defeated by the 5th circuit voltage signal third of the 5th resistance of the 5th circuit connection all the way
The cathode of inbound port, another way signal are divided into two-way after passing through the 4th resistance of the 5th circuit, and signal passes through the 5th circuit all the way
Six resistance connect the cathode of the 5th circuit voltage signal third input port, and another way signal is surveyed by the 4th electric current of the 5th circuit
Measure the anode of interface connection the 4th input port of the 5th circuit voltage signal.
The RLC series resonant circuit experimental circuit includes the 6th circuit voltage signal input port, the 6th circuit the
One toggle switch, the 6th the second toggle switch of circuit, the 6th circuit first capacitor, the 6th the second capacitor of circuit, the 6th circuit
One resistance, the 6th circuit second resistance, the 6th circuit inductance, the 6th circuit first waveform measurement point, the 6th the second waveform of circuit
Measurement point, the 6th circuit third waveform measurement point, the 4th waveform measurement point of the 6th circuit, the 5th waveform measurement point of the 6th circuit and
The 6th waveform measurement point of 6th circuit；6th the first toggle switch of circuit and the 6th the second toggle switch of circuit are single-pole double throw
Switch；The non-moving end of anode the 6th the first toggle switch of circuit of connection of 6th circuit voltage signal input port, the 6th circuit
Movable end one end of first toggle switch is by connecting the after the 6th circuit first waveform measurement point and the 6th circuit first capacitor
The movable end other end of 6 circuit third waveform measurement points, the 6th the first toggle switch of circuit is surveyed by the 6th the second waveform of circuit
The 6th circuit third waveform measurement point is connected after amount point and the 6th the second capacitor of circuit；6th circuit voltage signal input port
Cathode connects the non-moving end of the 6th the second toggle switch of circuit, and movable end one end of the 6th the second toggle switch of circuit passes through the 6th
The 4th waveform measurement point of the 6th circuit, the 6th circuit second are connected after the 5th waveform measurement point of circuit and the 6th circuit first resistor
The movable end other end of toggle switch is by connecting the 6th after the 6th waveform measurement point of the 6th circuit and the 6th circuit second resistance
The 4th waveform measurement point of circuit；The 6th is connected between 6th circuit third waveform measurement point and the 4th waveform measurement point of the 6th circuit
Circuit inductance.
The spare component experimental circuit include several resistance, several capacitors, several inductance and several
Diode, and it is mutually indepedent between all components.
This circuit theory experimental provision provided by the utility model simplifies the design of connecting line, the replacement nothing of component
It need to be inserted by dialling, need to only be can be realized by toggle switch, the input of all modules, output, power supply are designed with test wrapper, side
Just student is using the testing tools such as signal generator, oscillograph, and the utility model is easy to use, external wire and wire jumper compared with
Few, circuit is simple and reliable.
Detailed description of the invention
Fig. 1 is the functional block diagram of the utility model.
Fig. 2 is the Kirchhoff's theorem of the utility model and the circuit diagram of superposition theorem experimental circuit.
Fig. 3 is the Thevenin's theorem of the utility model and the circuit diagram of Nortons theorem experimental circuit.
Fig. 4 is the single order of the utility model and the circuit diagram of second order dynamic circuit experimental circuit.
Fig. 5 is the circuit diagram of the series-parallel frequency-selective network experimental circuit of RC of the utility model.
Fig. 6 is the two-port network of the utility model and the circuit diagram of reciprocal theorem experimental circuit.
Fig. 7 is the circuit diagram of the RLC series resonant circuit experimental circuit of the utility model.
Fig. 8 is the circuit diagram of the spare component experimental circuit of the utility model.
Specific embodiment
It is as shown in Figure 1 the functional block diagram of the utility model: this circuit theory experiment dress provided by the utility model
Set, including power module, experiment circuit module and several groups measuring instrumentss, and in experiment circuit module using toggle switch into
The switching of row circuit components；Power module is used to provide power supply for experimental circuit；Experiment circuit module for realizing and show
The working condition of circuit；Measuring instrumentss connect with experiment circuit module and measure and display circuit parameter.If measuring instrumentss include
The ammeter of the voltmeter and several groups difference range of dry group of different ranges.Experiment circuit module includes Kirchhoff's theorem and folds
It reorders and manages experimental circuit, Thevenin's theorem and Nortons theorem experimental circuit, single order and second order dynamic circuit experimental circuit, RC string simultaneously
Join frequency-selective network experimental circuit, two-port network and reciprocal theorem experimental circuit, RLC series resonant circuit experimental circuit and spare member
Device experimental circuit.Measuring instrumentss are connect by p-wire with experiment circuit module, when measurement electric current, using testing current line into
Row connection；Testing current line one end is headset plug, and headset plug is drawn two conducting wires (one is red, and one is black) and made
For the other end.Earphone socket is installed in the branch for needing to measure electric current, 2 contacts of earphone socket are separately connected circuit
Both ends, this 2 contacts of usual earphone socket are in normally closed state namely circuit and are in connected state；It is electric when needing to measure
When stream, testing current line is inserted into earphone socket, then former 2 contacts in the conductive state are disconnected, and are connected
To testing current line is corresponding red and black connecting line, then by the anode of red connecting line insertion ammeter, black connecting line
Being inserted into ammeter cathode can measure electric current.This method operation is extremely easy, quick, reliable.
It is illustrated in figure 2 the Kirchhoff's theorem of the utility model and the circuit diagram of superposition theorem experimental circuit: base
That Hough theorem and superposition theorem experimental circuit are stirred including the first circuit first voltage source input port U1, the first circuit first
Switch K11, the first circuit first resistor R11, first the first current measurement point of circuit I11, the first circuit second resistance R12,
One circuit second voltage input port U2, first the second toggle switch of circuit K12, the first circuit 3rd resistor R13, the first circuit
Second current measurement point I12, the 4th resistance R14 of the first circuit, the first circuit third toggle switch K13, the first circuit the one or two
Pole pipe D11, the first circuit third current measurement point I13, the 5th resistance R15 of the first circuit, the connection of the first circuit first voltage table
Point t1, the first circuit second voltage table tie point t2, the first circuit tertiary voltage table tie point t3, first the first shorting stub of circuit
(shorting stub in figure between A, B two o'clock) and first the second shorting stub of circuit (shorting stub in figure between D, E two o'clock)；First electricity
The first toggle switch of road, first the second toggle switch of circuit and the first circuit third toggle switch are double-point double-throw switch；The
It connects with the first circuit first resistor and first the first current measurement point of circuit non-moving end one end of one the first toggle switch of circuit
After connect the first circuit first voltage table tie point, the non-moving end other end of first the first toggle switch of circuit passes through the first circuit
The first circuit second voltage table tie point is connected after second resistance series connection, the movable end both ends of first the first toggle switch of circuit connect
Connect first the first shorting stub of circuit of the first circuit first voltage source input terminal or connection；First the second toggle switch of circuit is not
Moved end one end is connected to the first circuit first voltage after connecting with the first circuit 3rd resistor, first the second current measurement point of circuit
The non-moving end other end of table tie point, first the second toggle switch of circuit connects the first circuit tertiary voltage table tie point；First
Non-moving end one end of circuit third toggle switch connects the first circuit tertiary voltage table tie point, the first circuit third toggle switch
The non-moving end other end connect the first circuit second voltage table tie point, the movable end both ends of the first circuit third toggle switch connect
Connect the first circuit first diode of the 4th resistance of the first circuit or connection；First circuit first voltage table tie point and the first electricity
The 5th resistance of the first circuit third current measurement point and the first circuit is serially connected between the second voltage table tie point of road.
The course of work of Kirchhoff's theorem and superposition theorem experimental circuit are as follows:
Kirchhoff's theorem: K11 is allocated to left end connection U1+,-K12 is allocated to right end connection U2 by end+,-end, it will
K13 is allocated to the resistance that top connects 330 ohm；In the 6V power supply of U1 connection D.C. regulated power supply, in U2 connection DC voltage-stabilizing electricity
Then current test point I11, I12 and I13, other end access electricity are inserted into one end of 3 testing current lines by the 12V power supply in source
Flow table is the electric current that can measure electric current I1, I2, I3.In experiment can be changed be added the both ends U1, U2 DC power supply be 12V, 12V or
12V, 10V etc..
Principle of stacking: being respectively connected to 12V and 6V D.C. regulated power supply for U1, U2, K11 is allocated to the side U1, K12 is allocated to short circuit
Side measures the voltage and record of each branch current and each resistance both ends with voltmeter and ammeter；K12 is allocated to the side U1, K11 is dialled
To short circuit end, the voltage and record of each branch current and each resistance both ends are measured with voltmeter and ammeter；K11 is allocated to U1
Side, K12 are allocated to the side U2, and the voltage and record of each branch current and each resistance both ends are measured with voltmeter and ammeter；In experiment
330 Ohmic resistances can be switched to IN4007 diode by K13.
It is illustrated in figure 3 the Thevenin's theorem of the utility model and the circuit diagram of Nortons theorem experimental circuit: Dai Wei
Southern theorem and Nortons theorem experimental circuit include second circuit first resistor R21, second circuit second resistance R22, second circuit
3rd resistor R23, the 4th resistance R24 of second circuit, the 5th resistance R25 of second circuit, the first current measurement point of second circuit
I21, the first toggle switch of second circuit K21, the first shorting stub of second circuit, second circuit current signal input Is and second
Circuit voltage signal input part Us；Non-moving end one end of the first toggle switch of second circuit passes through the first current measurement of second circuit
One end of second circuit second resistance and second circuit voltage signal inputs is connected after point simultaneously, second circuit first is stirred out
The non-moving end other end of pass while the other end for connecting second circuit 3rd resistor and second circuit current signal input, second
Movable end both ends connection the 5th resistance of second circuit of the first toggle switch of circuit or connection the first shorting stub of second circuit；The
The other end of two circuit voltage input terminals connects second circuit first resistor and second after passing through the 4th resistance of second circuit simultaneously
Circuit 3rd resistor；One end of second circuit current signal input then connects second circuit first resistor and second circuit simultaneously
Second resistance.
The course of work of Thevenin's theorem and Nortons theorem experimental circuit is as follows:
With open-circuit voltage, calculation of short-circuit current Dai Weinan equivalent internal resistance: terminating respectively in Us, Is into D.C. regulated power supply
12V, constant-current source 10mA, switch K21 are allocated to the side R25 (as shown in the figure right side), but since the slide rheostat of R25 at this time is external
Circuit, therefore what device can not be taken at this time, first measure the open-circuit voltage and record of AB two o'clock, it is rear to measure the short of AB two o'clock
Road electric current simultaneously records, and can calculate equivalent internal resistance according to open-circuit voltage and short circuit current；(2), equivalent internal resistance is directly measured: will be electric
Potential source Us short circuit, current source Is open circuit, measure the resistance at the both ends AB.(3), the external characteristics of active two-terminal network is measured: point
Do not terminated in Us, Is and be allocated to the side R25 into D.C. regulated power supply 12V, constant-current source 10mA, switch K21, respectively R25 terminate into
200, the voltage and use ammeter at 1K ohm of resistance and the use voltmeter measurement both ends AB measure electric current I.
Be illustrated in figure 4 the single order of the utility model and the circuit diagram of second order dynamic circuit experimental circuit: single order and
Second order dynamic circuit experimental circuit includes tertiary circuit first switch K31, tertiary circuit second switch K32, tertiary circuit third
Close K33, the 4th switch K34 of tertiary circuit, the 5th switch K35 of tertiary circuit, the 6th switch K36 of tertiary circuit, tertiary circuit the
Seven switch K37, the 8th switch K38 of tertiary circuit, the 9th switch K39 of tertiary circuit, the tenth switch K312 of tertiary circuit, third electricity
The 11st switch K311 of road, the 12nd switch K312 of tertiary circuit, the 13rd switch K313 of tertiary circuit, tertiary circuit the 14th
Switch K314, the 15th switch K315 of tertiary circuit, tertiary circuit first resistor R31, tertiary circuit second resistance R32, third
Circuit 3rd resistor R33, the 4th resistance R34 of tertiary circuit, the 5th resistance R35 of tertiary circuit, the 6th resistance R36 of tertiary circuit,
The 7th resistance R37 of tertiary circuit, tertiary circuit first capacitor C31, the second capacitor of tertiary circuit C32, tertiary circuit third capacitor
C33, the 4th capacitor C34 of tertiary circuit, the 5th capacitor C35 of tertiary circuit, the 6th capacitor C36 of tertiary circuit, tertiary circuit first
Inductance L31, the second inductance of tertiary circuit L32, tertiary circuit voltage signal inputs Ui and tertiary circuit voltage signal output end
Uo；The cathode of tertiary circuit voltage signal inputs and the cathode of tertiary circuit voltage signal output end are directly connected to；Third electricity
Road first switch is connected to the anode and third electricity of tertiary circuit voltage signal inputs after connecting with tertiary circuit first resistor
Between the anode of road voltage signal output end；Tertiary circuit second switch is connected to third after connecting with tertiary circuit second resistance
Between the anode of circuit voltage signal input part and the anode of tertiary circuit voltage signal output end；Tertiary circuit third switch with
Anode and the tertiary circuit voltage signal that tertiary circuit voltage signal inputs are connected to after the series connection of tertiary circuit first capacitor are defeated
Between the anode of outlet；The switch of tertiary circuit the 4th is connected to tertiary circuit voltage signal after connecting with the second capacitor of tertiary circuit
Between the anode of input terminal and the anode of tertiary circuit voltage signal output end；The switch of tertiary circuit the 5th and tertiary circuit third
Resistance series connection after be connected to tertiary circuit voltage signal output end anode and tertiary circuit voltage signal output end cathode it
Between；The switch of tertiary circuit the 6th is connected to the anode of tertiary circuit voltage signal output end after connecting with the 4th resistance of tertiary circuit
Between the cathode of tertiary circuit voltage signal output end；The switch of tertiary circuit the 7th connects after connecting with the 5th resistance of tertiary circuit
It connects between the anode of tertiary circuit voltage signal output end and the cathode of tertiary circuit voltage signal output end；Tertiary circuit
Eight switches are connected to the anode and tertiary circuit electricity of tertiary circuit voltage signal output end after connecting with the 6th resistance of tertiary circuit
Between the cathode for pressing signal output end；The switch of tertiary circuit the 9th is connected to tertiary circuit after connecting with the 7th resistance of tertiary circuit
Between the anode of voltage signal output end and the cathode of tertiary circuit voltage signal output end；The switch of tertiary circuit the tenth and third
The anode and tertiary circuit voltage signal output end of tertiary circuit voltage signal output end are connected to after the series connection of circuit third capacitor
Cathode between；It is defeated that the switch of tertiary circuit the 11st is connected to tertiary circuit voltage signal after connecting with the 4th capacitor of tertiary circuit
Between the anode of outlet and the cathode of tertiary circuit voltage signal output end；The switch of tertiary circuit the 12nd and tertiary circuit the 5th
Capacitor series connection after be connected to tertiary circuit voltage signal output end anode and tertiary circuit voltage signal output end cathode it
Between；The switch of tertiary circuit the 13rd is being connected to tertiary circuit voltage signal output end just after connecting with the 6th capacitor of tertiary circuit
Between pole and the cathode of tertiary circuit voltage signal output end；The switch of tertiary circuit the 14th is connected with the first inductance of tertiary circuit
It is connected between the anode of tertiary circuit voltage signal output end and the cathode of tertiary circuit voltage signal output end afterwards；Third electricity
The switch of road the 15th is connected to the anode and third of tertiary circuit voltage signal output end after connecting with the second inductance of tertiary circuit
Between the cathode of circuit voltage signal output end.
The course of work of single order and second order dynamic circuit experimental circuit is as follows:
(1) single order RC integrating circuit: connecting rest switch for switch K31, K311 and disconnect, to connect into RC integrating circuit,
Ui input frequency be 1Khz, the square-wave signal that peak-to-peak value is 5Vpp, use the waveform at the end oscilloscope measurement Uo；It will open in next step
It closes K31, K313 and connects rest switch disconnection, measure the waveform at the end Uo again.
(2) single order RC differential circuit: connecting rest switch for switch K34, K35 and disconnect, to connect into RC differential circuit,
Ui input frequency be 1Khz, the square-wave signal that peak-to-peak value is 5Vpp, use the waveform at the end oscilloscope measurement Uo；It in next step will switch
K34, K37 connect rest switch and disconnect, and measure and record the waveform at the end Uo again.Different capacitance and electricity can be chosen in experiment
Then resistance value observes the waveform at the end Uo.
(3) RLC second-order circuit: connecting rest switch for switch K31, K39, K310, K314 and disconnect, and is in Ui input frequency
1Khz, the square-wave signal that peak-to-peak value is 5Vpp, use the waveform at the end oscilloscope measurement Uo；The electricity that K39 is connect is adjusted in experiment
Position device, while can be by changing inductance value and capacitance size for switch.
Be illustrated in figure 5 the circuit diagram of the series-parallel frequency-selective network experimental circuit of RC of the utility model: RC is series-parallel
Frequency-selective network experimental circuit includes the 4th circuit voltage signal input part Ui, the 4th circuit first switch K41, the 4th circuit first
Resistance R41, the 4th circuit first capacitor C41, the 4th circuit second switch K42, the 4th circuit second resistance R42, the 4th circuit
Second capacitor C42, the 4th circuit third switch K43, the 4th circuit 3rd resistor R43, the 4th circuit third capacitor C43, the 4th
The 4th switch K44 of circuit, the 4th resistance R44 of the 4th circuit, the 4th capacitor C44 of the 4th circuit and the output of the 4th circuit voltage signal
Hold Uo；The cathode of the cathode and the 4th circuit voltage signal output end of 4th circuit voltage signal input part is directly connected to；4th
It is defeated that the 4th circuit voltage signal is connected to after circuit first switch, the 4th circuit first resistor and the series connection of the 4th circuit first capacitor
Enter between the anode at end and the anode of the 4th circuit voltage signal output end；4th circuit third switch, the 4th circuit third electricity
The anode and the 4th circuit voltage letter of the 4th circuit voltage signal input part are connected to after resistance and the series connection of the 4th circuit third capacitor
Between the anode of number output end；After 4th circuit second resistance and the 4th circuit the second capacitor are in parallel, then with the 4th circuit second
After switch series connection, reconnect in the anode of the 4th circuit voltage signal output end and the cathode of the 4th circuit voltage signal output end
Between；The 4th resistance of 4th circuit and the 4th circuit the 4th capacitor are in parallel, then after connect with the 4th circuit the 4th switch, reconnection
Between the anode of the 4th circuit voltage signal output end and the cathode of the 4th circuit voltage signal output end.
The course of work of the series-parallel frequency-selective network experimental circuit of RC is as follows:
Switch K43, K44 are connected rest switch to disconnect, inputting peak-to-peak value by function signal generator at the end Ui is
Then the sine wave signal of 5Vpp or so measures output voltage Uo and records；Need constantly to change input sine wave letter in experiment
Number frequency.Component parameter can be changed by K41, K42 and measure record again.
It is illustrated in figure 6 the two-port network of the utility model and the circuit diagram of reciprocal theorem experimental circuit: twoport net
Network and reciprocal theorem experimental circuit include the 5th circuit voltage signal first input port U11, the 5th circuit voltage signal second
Input port U12, the 5th circuit voltage signal third input port U21, the 4th input port U22 of the 5th circuit voltage signal,
5th the first current measuring interface of circuit I51, the 5th the second current measuring interface of circuit I52, the 5th circuit third current measurement
Interface I53, the 4th current measuring interface I54 of the 5th circuit, the 5th circuit first resistor R51, the 5th circuit second resistance R52,
5th circuit 3rd resistor R53, the 4th resistance R54 of the 5th circuit, the 5th resistance R55 of the 5th circuit and the 6th resistance of the 5th circuit
R56；The cathode of the cathode and the 5th the second input port of circuit voltage signal of 5th circuit voltage signal first input port is straight
It connects in succession, the anode of the 5th circuit voltage signal first input port passes through the 5th the first current measuring interface of circuit and the 5th electricity
Signal is divided into two-way after the series connection of road first resistor, and signal connects the 5th circuit voltage signal by the 5th circuit second resistance all the way
The cathode of first input port, another way signal pass through the 5th the second current measuring interface of circuit and the 5th circuit second resistance string
The anode of the 5th the second input port of circuit voltage signal is connected after connection；The cathode of 5th circuit voltage signal third input port
It is directly connected to the cathode of the 4th input port of the 5th circuit voltage signal, the 5th circuit voltage signal third input port is just
Pole is divided into two-way by signal after the 5th circuit third current measuring interface, and signal is connected by the 5th resistance of the 5th circuit all the way
The cathode of 5th circuit voltage signal third input port, another way signal are divided into two-way after passing through the 4th resistance of the 5th circuit,
Signal connects the cathode of the 5th circuit voltage signal third input port, another way signal by the 6th resistance of the 5th circuit all the way
The anode of the 4th input port of the 5th circuit voltage signal is connected by the 4th current measuring interface of the 5th circuit.
The course of work of two-port network and reciprocal theorem experimental circuit is as follows:
(1), the open circuit electricity that the end U12 is first measured into 12V DC regulated power supply T-type network simultaneous measurement method: is terminated in U11
Pressure and electric current I51 are simultaneously recorded, then U12 terminal shortcircuit is measured short circuit current I2 and electric current I51 using testing current line and is recorded；
(2), the open circuit electricity that the end U22 is first measured into 12V DC regulated power supply pin network simultaneous measurement method: is terminated in U21
Pressure and electric current I53 are simultaneously recorded, then U22 terminal shortcircuit is measured short circuit current I4 and electric current I53 using testing current line and is recorded；
(3), T-type network distinguishes mensuration: terminating in U11 into 12V DC regulated power supply, first measures the end U12 open-circuit condition
Under electric current I51 and record, then U12 terminal shortcircuit is measured and electric current I51 and is recorded；It terminates afterwards in U12 into 12V DC pressure stabilizing electricity
Source measures the electric current I52 under the open-circuit condition of the end U11 respectively and records, then U11 terminal shortcircuit is measured electric current I52 and is recorded；
(4), pin network distinguishes mensuration: terminating in U21 into 12V DC regulated power supply, first measures the end U22 open-circuit condition
Under electric current I53 and record, then U22 terminal shortcircuit is measured and electric current I53 and is recorded；It terminates afterwards in U22 into 12V DC pressure stabilizing electricity
Source measures the electric current I54 under the open-circuit condition of the end U21 respectively and records, then U21 terminal shortcircuit is measured electric current I54 and is recorded.
Be illustrated in figure 7 the circuit diagram of the RLC series resonant circuit experimental circuit of the utility model: RLC series connection is humorous
The Experiment of Electrical Circuits circuit that shakes includes the 6th circuit voltage signal input port Ui, the 6th the first toggle switch of circuit K61, the 6th circuit
Second toggle switch K62, the 6th circuit first capacitor C61, the 6th the second capacitor of circuit C62, the 6th circuit first resistor R61,
6th circuit second resistance R62, the 6th circuit inductance L61, the 6th circuit first waveform measurement point t61, the 6th the second wave of circuit
Shape measurement point t62, the 6th circuit third waveform measurement point t63, the 4th waveform measurement point t64 of the 6th circuit, the 6th circuit the 5th
The 6th waveform measurement point t66 of waveform measurement point t65 and the 6th circuit；6th the first toggle switch of circuit and the 6th circuit second are dialled
Dynamic switch is single-pole double-throw switch (SPDT)；Anode the 6th the first toggle switch of circuit of connection of 6th circuit voltage signal input port
Non-moving end, movable end one end of the 6th the first toggle switch of circuit passes through the 6th circuit first waveform measurement point and the 6th circuit
Connect the 6th circuit third waveform measurement point after first capacitor, the movable end other end of the 6th the first toggle switch of circuit passes through the
The 6th circuit third waveform measurement point is connected after 6 the second waveform measurement of circuit points and the 6th the second capacitor of circuit；6th circuit electricity
The cathode of signal input port is pressed to connect the non-moving end of the 6th the second toggle switch of circuit, the work of the 6th the second toggle switch of circuit
Moved end one end is surveyed by connection the 4th waveform of the 6th circuit after the 5th waveform measurement point of the 6th circuit and the 6th circuit first resistor
Measure point, the movable end other end of the 6th the second toggle switch of circuit passes through the 6th waveform measurement point of the 6th circuit and the 6th circuit the
The 4th waveform measurement point of the 6th circuit is connected after two resistance；6th circuit third waveform measurement point and the 4th waveform of the 6th circuit are surveyed
The 6th circuit inductance is connected between amount point.
The course of work of RLC series resonant circuit experimental circuit is as follows:
At the end Ui, input function signal generator generates the sine wave signal that peak-to-peak value is about 5V, while using oscilloscope measurement
The input signal at the end Ui and the waveform at the end resistance R61 or R62 and frequency according to phase relation adjustment input signal, can also be with
The voltage at resistance both ends is measured, corresponding input sine wave frequency is resonance frequency when resistance maximum.It can pass through in experiment
Switch K61, K62 switch different size of capacitor and resistance.
It is illustrated in figure 8 the circuit diagram of the spare component experimental circuit of the utility model: spare component experiment
Circuit includes several resistance (R71~R77), several capacitors (C71 and C72), several inductance (L71) and several two poles
It manages (D71 and D72), and mutually indepedent between all components；In use, can be according to specific demand, using common
Electric connection line will be in above-mentioned spare component access circuit.
Claims (10)
1. a kind of circuit theory experimental provision, including power module and experiment circuit module, it is characterised in that further include several groups
Measuring instrumentss, and using the switching of toggle switch progress circuit components in experiment circuit module；Power module is used to be real
Electrical verification road provides power supply；Experiment circuit module is for realizing the working condition with displaying circuit；Measuring instrumentss and experimental circuit mould
Block is connected and is measured and display circuit parameter.
2. circuit theory experimental provision according to claim 1, it is characterised in that the measuring instrumentss by wire jumper with
Experiment circuit module connection.
3. circuit theory experimental provision according to claim 1 or 2, it is characterised in that the experiment circuit module includes
Kirchhoff's theorem and superposition theorem experimental circuit, Thevenin's theorem and Nortons theorem experimental circuit, single order and second order dynamic electric
The series-parallel frequency-selective network experimental circuit of road experimental circuit, RC, two-port network and reciprocal theorem experimental circuit, RLC series resonance electricity
Road experimental circuit and spare component experimental circuit.
4. circuit theory experimental provision according to claim 3, it is characterised in that the Kirchhoff's theorem and superposition
Theorem experimental circuit includes the first circuit first voltage source input port, first the first toggle switch of circuit, the first circuit first
Resistance, first the first current measurement point of circuit, the first circuit second resistance, the first circuit second voltage input port, the first electricity
The second toggle switch of road, the first circuit 3rd resistor, first the second current measurement point of circuit, the 4th resistance of the first circuit, first
Circuit third toggle switch, the first circuit first diode, the first circuit third current measurement point, the 5th resistance of the first circuit,
First circuit first voltage table tie point, the first circuit second voltage table tie point, the first circuit tertiary voltage table tie point,
One the first shorting stub of circuit and first the second shorting stub of circuit；First the first toggle switch of circuit, the first circuit second are stirred out
It closes and the first circuit third toggle switch is double-point double-throw switch；Non-moving end one end of first the first toggle switch of circuit and the
The first circuit first voltage table tie point is connected after one circuit first resistor and the series connection of first the first current measurement point of circuit, first
The non-moving end other end of the first toggle switch of circuit connects the first circuit second voltage after connecting by the first circuit second resistance
The movable end both ends of table tie point, first the first toggle switch of circuit connect the first circuit first voltage source input terminal or connection
First the first shorting stub of circuit；Non-moving end one end of first the second toggle switch of circuit and the first circuit 3rd resistor, the first electricity
It is connected to the first circuit first voltage table tie point after the series connection of the second current measurement point of road, first the second toggle switch of circuit is not
The moved end other end connects the first circuit tertiary voltage table tie point；Non-moving end one end connection the of first circuit third toggle switch
The non-moving end other end of one circuit tertiary voltage table tie point, the first circuit third toggle switch connects the first circuit second voltage
Table tie point, the first circuit of movable end both ends connection the 4th resistance of the first circuit or connection of the first circuit third toggle switch
First diode；The first electricity is serially connected between first circuit first voltage table tie point and the first circuit second voltage table tie point
The 5th resistance of road third current measurement point and the first circuit.
5. circuit theory experimental provision according to claim 3, it is characterised in that the Thevenin's theorem and Nuo Dunding
Managing experimental circuit includes second circuit first resistor, second circuit second resistance, second circuit 3rd resistor, second circuit the 4th
The 5th resistance of resistance, second circuit, the first current measurement point of second circuit, the first toggle switch of second circuit, second circuit
One shorting stub, second circuit current signal input and second circuit voltage signal inputs；The first toggle switch of second circuit
Non-moving end one end by the way that second circuit second resistance and second circuit electricity are connected after the first current measurement point of second circuit simultaneously
One end of signal input part is pressed, the non-moving end other end of the first toggle switch of second circuit connects second circuit 3rd resistor simultaneously
Second circuit is connected with the movable end both ends of the other end of second circuit current signal input, the first toggle switch of second circuit
5th resistance or connection the first shorting stub of second circuit；The other end of second circuit voltage input end passes through second circuit the 4th
Second circuit first resistor and second circuit 3rd resistor are connected after resistance simultaneously；One end of second circuit current signal input
Second circuit first resistor and second circuit second resistance are then connected simultaneously.
6. circuit theory experimental provision according to claim 3, it is characterised in that the single order and second order dynamic circuit
Experimental circuit includes tertiary circuit first switch, tertiary circuit second switch, tertiary circuit third is closed, tertiary circuit the 4th is opened
It closes, the switch of tertiary circuit the 5th, the switch of tertiary circuit the 6th, the switch of tertiary circuit the 7th, the switch of tertiary circuit the 8th, third electricity
The switch of road the 9th, the switch of tertiary circuit the tenth, the switch of tertiary circuit the 11st, the switch of tertiary circuit the 12nd, tertiary circuit the
13 switches, the switch of tertiary circuit the 14th, the switch of tertiary circuit the 15th, tertiary circuit first resistor, tertiary circuit second
Resistance, tertiary circuit 3rd resistor, the 4th resistance of tertiary circuit, the 5th resistance of tertiary circuit, the 6th resistance of tertiary circuit, third
The 7th resistance of circuit, tertiary circuit first capacitor, the second capacitor of tertiary circuit, tertiary circuit third capacitor, tertiary circuit the 4th
Capacitor, the 5th capacitor of tertiary circuit, the 6th capacitor of tertiary circuit, the first inductance of tertiary circuit, the second inductance of tertiary circuit, third
Circuit voltage signal input part and tertiary circuit voltage signal output end；The cathode and third of tertiary circuit voltage signal inputs
The cathode of circuit voltage signal output end is directly connected to；Tertiary circuit first switch connects after connecting with tertiary circuit first resistor
Between the anode of tertiary circuit voltage signal inputs and the anode of tertiary circuit voltage signal output end；Tertiary circuit second
Switch is connected to the anode and tertiary circuit voltage of tertiary circuit voltage signal inputs after connecting with tertiary circuit second resistance
Between the anode of signal output end；Tertiary circuit third switch is connected to tertiary circuit electricity after connecting with tertiary circuit first capacitor
It presses between the anode of signal input part and the anode of tertiary circuit voltage signal output end；The switch of tertiary circuit the 4th and third electricity
The anode and tertiary circuit voltage signal output end of tertiary circuit voltage signal inputs are connected to after the series connection of the second capacitor of road
Between anode；The switch of tertiary circuit the 5th is connected to tertiary circuit voltage signal output end after connecting with tertiary circuit 3rd resistor
Anode and tertiary circuit voltage signal output end cathode between；The switch of tertiary circuit the 6th and the 4th resistance string of tertiary circuit
It is connected to after connection between the anode of tertiary circuit voltage signal output end and the cathode of tertiary circuit voltage signal output end；Third
The switch of circuit the 7th is connected to the anode and third of tertiary circuit voltage signal output end after connecting with the 5th resistance of tertiary circuit
Between the cathode of circuit voltage signal output end；The switch of tertiary circuit the 8th is connected to the after connecting with the 6th resistance of tertiary circuit
Between the anode of three-circuit voltage signal output end and the cathode of tertiary circuit voltage signal output end；Tertiary circuit the 9th switchs
The anode and tertiary circuit voltage signal of tertiary circuit voltage signal output end are connected to after connecting with the 7th resistance of tertiary circuit
Between the cathode of output end；The switch of tertiary circuit the tenth is connected to tertiary circuit voltage letter after connecting with tertiary circuit third capacitor
Number between the anode of output end and the cathode of tertiary circuit voltage signal output end；The switch of tertiary circuit the 11st and tertiary circuit
The anode of tertiary circuit voltage signal output end and bearing for tertiary circuit voltage signal output end are connected to after the series connection of 4th capacitor
Between pole；The switch of tertiary circuit the 12nd is connected to tertiary circuit voltage signal output end after connecting with the 5th capacitor of tertiary circuit
Anode and tertiary circuit voltage signal output end cathode between；The switch of tertiary circuit the 13rd and the 6th capacitor of tertiary circuit
It is connected to after series connection between the anode of tertiary circuit voltage signal output end and the cathode of tertiary circuit voltage signal output end；The
Three-circuit the 14th is switched connect with the first inductance of tertiary circuit after be connected to the positive of tertiary circuit voltage signal output end and
Between the cathode of tertiary circuit voltage signal output end；The switch of tertiary circuit the 15th connects after connecting with the second inductance of tertiary circuit
It connects between the anode of tertiary circuit voltage signal output end and the cathode of tertiary circuit voltage signal output end.
7. circuit theory experimental provision according to claim 3, it is characterised in that the series-parallel frequency-selective network of the RC is real
Electrical verification road includes the 4th circuit voltage signal input part, the 4th circuit first switch, the 4th circuit first resistor, the 4th circuit the
One capacitor, the 4th circuit second switch, the 4th circuit second resistance, the 4th the second capacitor of circuit, the 4th circuit third switch, the
Four circuit 3rd resistors, the 4th circuit third capacitor, the 4th circuit the 4th switch, the 4th resistance of the 4th circuit, the 4th circuit
Four capacitors and the 4th circuit voltage signal output end；The cathode and the 4th circuit voltage signal of 4th circuit voltage signal input part
The cathode of output end is directly connected to；4th circuit first switch, the 4th circuit first resistor and the series connection of the 4th circuit first capacitor
It is connected between the anode of the 4th circuit voltage signal input part and the anode of the 4th circuit voltage signal output end afterwards；4th electricity
The input of the 4th circuit voltage signal is connected to after road third switch, the 4th circuit 3rd resistor and the series connection of the 4th circuit third capacitor
Between the anode at end and the anode of the 4th circuit voltage signal output end；4th circuit second resistance and the 4th the second capacitor of circuit
After parallel connection, then after connecting with the 4th circuit second switch, reconnect in the anode of the 4th circuit voltage signal output end and the 4th
Between the cathode of circuit voltage signal output end；The 4th resistance of 4th circuit and the 4th circuit the 4th capacitor are in parallel, then with the 4th
After the switch series connection of circuit the 4th, reconnect in the anode of the 4th circuit voltage signal output end and the output of the 4th circuit voltage signal
Between the cathode at end.
8. circuit theory experimental provision according to claim 3, it is characterised in that the two-port network and reciprocal theorem
Experimental circuit includes the 5th circuit voltage signal first input port, the 5th the second input port of circuit voltage signal, the 5th electricity
Road voltage signal third input port, the 4th input port of the 5th circuit voltage signal, the 5th the first current measuring interface of circuit,
5th the second current measuring interface of circuit, the 5th circuit third current measuring interface, the 4th current measuring interface of the 5th circuit,
Five circuit first resistors, the 5th circuit second resistance, the 5th circuit 3rd resistor, the 4th resistance of the 5th circuit, the 5th circuit
The 6th resistance of five resistance and the 5th circuit；The cathode and the 5th circuit voltage signal of 5th circuit voltage signal first input port
The cathode of second input port is directly connected to, and the anode of the 5th circuit voltage signal first input port passes through the 5th circuit first
Signal is divided into two-way after current measuring interface and the series connection of the 5th circuit first resistor, and signal passes through the 5th circuit second resistance all the way
The cathode of the 5th circuit voltage signal first input port is connected, another way signal passes through the 5th the second current measuring interface of circuit
With the anode for connecting the 5th the second input port of circuit voltage signal after the series connection of the 5th circuit second resistance；5th circuit voltage letter
The cathode of the cathode and the 4th input port of the 5th circuit voltage signal of number third input port is directly connected to, the 5th circuit voltage
The anode of signal third input port is divided into two-way by signal after the 5th circuit third current measuring interface, and signal passes through all the way
The 5th resistance of 5th circuit connects the cathode of the 5th circuit voltage signal third input port, and another way signal passes through the 5th circuit
It is divided into two-way after 4th resistance, signal connects the 5th circuit voltage signal third input terminal by the 6th resistance of the 5th circuit all the way
The cathode of mouth, another way signal connect the 4th input terminal of the 5th circuit voltage signal by the 4th current measuring interface of the 5th circuit
The anode of mouth.
9. circuit theory experimental provision according to claim 3, it is characterised in that the RLC series resonant circuit experiment
Circuit includes the 6th circuit voltage signal input port, the 6th the first toggle switch of circuit, the 6th the second toggle switch of circuit, the
Six circuit first capacitors, the 6th the second capacitor of circuit, the 6th circuit first resistor, the 6th circuit second resistance, the 6th circuit electricity
Sense, the 6th circuit first waveform measurement point, the 6th the second waveform measurement of circuit point, the 6th circuit third waveform measurement point, the 6th
The 4th waveform measurement point of circuit, the 5th waveform measurement point of the 6th circuit and the 6th waveform measurement point of the 6th circuit；6th circuit
One toggle switch and the 6th the second toggle switch of circuit are single-pole double-throw switch (SPDT)；6th circuit voltage signal input port is just
Pole connects the non-moving end of the 6th the first toggle switch of circuit, and movable end one end of the 6th the first toggle switch of circuit passes through the 6th electricity
The 6th circuit third waveform measurement point is connected after road first waveform measurement point and the 6th circuit first capacitor, the 6th circuit first is dialled
The movable end other end of dynamic switch passes through the 6th electricity of connection after the 6th the second waveform measurement of circuit point and the 6th the second capacitor of circuit
Road third waveform measurement point；The cathode of 6th circuit voltage signal input port connects the motionless of the 6th the second toggle switch of circuit
The movable end one end at end, the 6th the second toggle switch of circuit passes through the 5th waveform measurement point of the 6th circuit and the 6th the first electricity of circuit
The 4th waveform measurement point of the 6th circuit is connected after resistance, the movable end other end of the 6th the second toggle switch of circuit passes through the 6th circuit
The 4th waveform measurement point of the 6th circuit is connected after 6th waveform measurement point and the 6th circuit second resistance；6th circuit third waveform
The 6th circuit inductance is connected between the 4th waveform measurement point of measurement point and the 6th circuit.
10. circuit theory experimental provision according to claim 3, it is characterised in that the spare component experimental circuit
It is mutually indepedent including several resistance, several capacitors, several inductance and several diodes, and between all components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820380417.9U CN209103638U (en) | 2018-03-21 | 2018-03-21 | Circuit theory experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820380417.9U CN209103638U (en) | 2018-03-21 | 2018-03-21 | Circuit theory experimental provision |
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| CN209103638U true CN209103638U (en) | 2019-07-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111179709A (en) * | 2020-03-13 | 2020-05-19 | 安徽工业大学 | Digital multifunctional power electronic technology teaching experiment platform |
| CN111243406A (en) * | 2020-03-13 | 2020-06-05 | 安徽工业大学 | Digital multifunctional power electronic technology experiment method |
| CN112382178A (en) * | 2020-12-09 | 2021-02-19 | 河北工业大学 | Portable experiment circuit board |
-
2018
- 2018-03-21 CN CN201820380417.9U patent/CN209103638U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111179709A (en) * | 2020-03-13 | 2020-05-19 | 安徽工业大学 | Digital multifunctional power electronic technology teaching experiment platform |
| CN111243406A (en) * | 2020-03-13 | 2020-06-05 | 安徽工业大学 | Digital multifunctional power electronic technology experiment method |
| CN111179709B (en) * | 2020-03-13 | 2022-03-08 | 安徽工业大学 | Digital multifunctional power electronic technology teaching experiment platform |
| CN111243406B (en) * | 2020-03-13 | 2022-03-08 | 安徽工业大学 | Digital multifunctional power electronic technology experiment method |
| CN112382178A (en) * | 2020-12-09 | 2021-02-19 | 河北工业大学 | Portable experiment circuit board |
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Granted publication date: 20190712 |