CN106898208A - Atypical multi resonant source formula frequency viewer - Google Patents
Atypical multi resonant source formula frequency viewer Download PDFInfo
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- CN106898208A CN106898208A CN201510952273.0A CN201510952273A CN106898208A CN 106898208 A CN106898208 A CN 106898208A CN 201510952273 A CN201510952273 A CN 201510952273A CN 106898208 A CN106898208 A CN 106898208A
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- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
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Abstract
Atypical multi resonant source formula frequency viewer,Belong to instruments used for education field,It is to make active important document with electronic relay,Form various logical relations,Constitute a kind of frequency viewer,By instrument connection,Atypical complementation oscillation circuit unit,Contact is switched,Double amplifying units,Diode-type partial pressure unit,Light display level,Voice level is collectively constituted,Testee is inserted into instrument connection,Atypical complementation oscillation circuit unit has frequency and the electric current without frequency by contact switch selection output,By after the amplification of double amplifying units,Start diode-type partial pressure unit,Each output point excitation light display level of diode-type partial pressure unit,Form the display of light,And form the instruction of voice in voice level,Frequency it is fast with it is slow,Influence optical diode formula partial pressure unit exports many of high-order output point and lacks,And then influence light display level display it is many with it is few,Intuitively demonstrate out electric capacity,Inductance etc. is closely connected with frequency,To Expand Thinking,Education of improving the quality has positive role.
Description
Technical field
Belong to instruments used for education field.
Background technology
Innovation is the soul of nationality, and young student are the strength of innovation.
The prosperity of country is talent, and the culture of talent is to educate.The emphasis teenager of education, juvenile Qiang Ze Guoqiang, the progressive then state progress of teenager, will cultivate teenager and science is had deep love for, it is crucial to improve the quality of teaching, and laboratory apparatus is precisely a key factor for improving teaching, laboratory apparatus is good, the experiment done more convincingness, so that students ' understanding things, understand natural phenomena, inspire the thinking of student, played an important role to improving level of education.Therefore, the various laboratory apparatus in teaching are all constantly being lifted, but also there are many weak points:One is the species deficiency of laboratory apparatus, and the laboratory apparatus especially for the students of the junior years is not also comprehensive.Two be the spirit taught through lively activities in instruments used for education not enough, three is the cost village school too high thus remote to some of majority instruments used for education now, can't spread to many universal instruments used for education.
Electricity is most important a kind of class in physics, full of magical Experiments of Electricity, the interest of teenager can be excited, play the role of to the basic conception for setting up electricity simultaneously important, if a kind of outstanding hookup can be developed, and this hookup can visualize electricity part concept and law by abstract, it is clear that there is positive help to educatee.If this circuit can turn into the self-control hookup of beginner again, will undoubtedly there is positive meaning to the quality-oriented education for lifting student.
But design a kind of a kind of self-control hookup that can turn into beginner again simultaneously with circuit of demonstration instrument and there is difficult point, one is from demonstrating effect, because the concept in electricity is a lot, it is to make the demonstration in terms of that, two is that this instrument is drafted primarily directed to electric capacity, inductance etc. has the element being closely connected to make the demonstration of physical property with frequency, and to make the demonstration of that several respect, its physical could sufficiently be shown, three are, especially it is important that, although some circuits can reach demonstration purpose, but a kind of outstanding self-control experimental circuit can not be turned into, because a kind of outstanding self-control experimental circuit move back relate to each unit experiment theme be suitable for beginner, move back simultaneously and relate to the interest of beginner, and whether success easy to install etc. series of problems, so this kind of outstanding circuit must also enrich, innovation, development.
But design a kind of a kind of self-control hookup that can turn into beginner again simultaneously with circuit of demonstration instrument and there is difficult point, one is from demonstrating effect, because the concept in electricity is a lot, it is to make the demonstration in terms of that, two is that this instrument is drafted primarily directed to electric capacity, inductance etc. has the element being closely connected to make the demonstration of physical property with frequency, and to make the demonstration of that several respect, its physical could sufficiently be shown, three are, especially it is important that, although some circuits can reach demonstration purpose, but a kind of outstanding self-control experimental circuit can not be turned into, because a kind of outstanding self-control experimental circuit move back relate to each unit experiment theme be suitable for beginner, move back simultaneously and relate to the interest of beginner, and whether success easy to install etc. series of problems, so this kind of outstanding circuit must also enrich, innovation, development.
The present invention is exactly the base unit using a kind of electronic relay as active part, and logic unit is constituted with this base unit, due to the element of the on-off function of this unitary function seemingly, can realize various logic changes.The science popularization excellent effect for not only producing, and it is very useful to the thinking of expansion student.
The content of the invention
The present invention is with a kind of substantially active part of electronic relay, as the active important document of unit, the logical relation of various functions can be constituted, as a kind of outstanding circuit, its purpose one is that the circuit can turn into a kind of viewer of science popularization property, by the viewer of this science popularization property, resistance element structure can emphatically be understood to be contacted with the close of frequency, and then understand the meaning of capacitive reactance and induction reactance, so as to allow beginner to lay certain electricity basis, the viewer of this science popularization property can turn into a kind of instrument in the popularization of vast school.Two is the instrument because the dual display with light with sound, particularly light show, flashes novelty, thus with certain interest, can cultivate numerous teenagers and science is had deep love for.Three is the element of the on-off function of this unitary function seemingly, but he can realize various logic changes, and beginner is easily mastered understanding, without advanced knowledge, therefore a kind of outstanding making experimental line can be turned into, to expanding teen-age thinking, education of improving the quality has positive role.
The measure for being used is:
1st, by instrument connection, atypical complementation oscillation circuit unit, contact switch, double amplifying units, diode-type partial pressure unit, light display level, voice level is collectively constituted atypical multi resonant source formula frequency viewer.
Wherein:Atypical complementation oscillation circuit unit by complementation vibration Unit one, complementary vibration Unit two, the source resistance of complementary vibration Unit one, vibration isolated location, vibrate adjustable protective resistance, vibration adjustable resistance, oscillating capacitance, the earth resistance of vibration isolated location, vibration isolation resistance, complementary vibration output earth resistance constitute:The input end grounding line of complementation vibration Unit one,The source resistance of complementation vibration Unit one is connected between the output end of system power supply and complementary vibration Unit one,The control end of output termination complementary vibration Unit two of complementation vibration Unit one,The control end of output termination complementary vibration Unit one of complementation vibration Unit two,Vibration adjustable resistance and the adjustable protective resistance of vibration are connected between the control end of complementary vibration Unit one and ground wire,Oscillating capacitance is connected between the control end of complementary vibration Unit one and ground wire,Vibration isolation resistance is connected on the output end of complementary vibration Unit two and the control end of vibration isolated location,Vibration isolation resistance is connected between the control end of vibration isolated location and ground wire,The input of complementation vibration Unit two and the input terminating systems power supply of vibration isolated location,The output end for vibrating isolated location is the output of atypical complementation oscillation circuit unit,With the indirect complementary vibration output earth resistance of ground wire.
Contact is switched by button switch, switch the first elementary cell, switch the second elementary cell, switch the first elementary cell state instruction, switch the source resistance of the first elementary cell, switch guiding electric capacity one, switch boot-strap resistor one, switch steering diode one, switch the first elementary cell earth resistance, switch the second elementary cell state instruction, switch the source resistance of the second elementary cell, switch guiding electric capacity two, switch boot-strap resistor two, switch steering diode two, switch the second elementary cell earth resistance, switch input resistance, switch output diode;Composition:The control end for switching two elementary cells all connects an earth resistance with ground wire;A source resistance is connect between the output end and system power supply that switch two elementary cells respectively, also with an indirect state instruction of system power supply;One end ground wire of button switch,Two positive poles of guiding electric capacity of another termination,Switch input resistance is connected between the positive pole of system power supply and two guiding electric capacity,The other end of switch guiding electric capacity one is two-way,Switch boot-strap resistor one to the output end of the first elementary cell of switch is connect all the way,Another road connects switch steering diode one to the control end of the first base unit of switch,The other end of switch guiding electric capacity two is two-way,Switch boot-strap resistor two to the output end of the second base unit of switch is connect all the way,Another road connects switch steering diode two to the control end of the second elementary cell of switch,The output end for switching the first elementary cell connects with the control end of the second elementary cell of switch,The output end for switching the second elementary cell connects with the control end of the first elementary cell of switch,The output end for switching the second elementary cell is the output of contact switch,Connect switch output diode to the control end of vibration isolated location.
Double amplifying units by commutation diode, one-level electric capacity, two-stage hoisting diode, two-stage hoisting electric capacity, three-level lifting diode, three-level lifting electric capacity, one-level lifting elementary cell, one-level lifting elementary cell earth resistance, one-level lifting elementary cell source resistance, two-stage hoisting elementary cell, penetrate with triggering resistance, penetrate and constituted with amplifier tube:The output of atypical complementation oscillation circuit unit is followed by commutation diode to the positive pole of one-level electric capacity by instrument connection,The negative pole ground wire of one-level electric capacity,The positive pole of one-level electric capacity connects two-stage hoisting diode to the positive pole of two-stage hoisting electric capacity,The positive pole of two-stage hoisting electric capacity lifts diode with the indirect three-level penetrated with the one end for triggering resistance,The positive pole of three-level lifting electric capacity connects the negative pole that three-level lifts diode,The control end of control termination complementary vibration Unit two of one-level lifting elementary cell,One-level lifting elementary cell earth resistance is connected on the control end that ground wire lifts elementary cell with one-level,One-level lifting elementary cell source resistance is connected on the output end that system power supply lifts elementary cell with one-level,The negative pole of two-stage hoisting electric capacity connects the output end that one-level lifts elementary cell,The control termination one-level of two-stage hoisting elementary cell lifts the output end of elementary cell,The negative pole of three-level lifting electric capacity connects the output end of two-stage hoisting elementary cell,One-level lifts input all ground wires of elementary cell and two-stage hoisting elementary cell,Penetrate and penetrated with the base stage of amplifier tube with another termination of triggering resistance,Penetrate with the colelctor electrode welding system power supply of amplifier tube,Penetrate with the emitter stage of amplifier tube be double amplifying units output.
Diode-type partial pressure unit by Multilevel partial-pressure diode, Multilevel partial-pressure resistance, multi-stage initialization device composition partially partially under diode, partial pressure under aisle resistance, partial pressure over the ground:Every grade of partial pressure diode by two Diode series into, every grade of partial pressure Diode series, its series connection point connects partial pressure aisle resistance over the ground, each series connection point turns into a partial pressure output point, connect a control end for preset device, the input terminating systems power supply of each preset device, output one live wire of display unit of termination of each preset device, the positive pole of first order partial pressure diode is the input of diode-type partial pressure unit, the output of double amplifying units is connect, inclined diode and inclined resistance under partial pressure to ground wire under the series connection partial pressure of afterbody partial pressure diode.
Light display level is made up of multiple display units, and each display unit has an independent live wire, and each display unit is that luminous instruction is constituted by discoloration driver element, three display driver elements, three color-changing light-emitting pipes.
Each display driver element is made up of inclined resistance, commissure electric capacity, isolating diode, source resistance under inclined resistance, input on display driver, input:The control end of each display driver connects inclined resistance with live wire, and lower inclined resistance is connect with ground wire;The input ground wire of each display driver, output end and the live wire of each display driver connect a luminous instruction;One end of first commissure electric capacity connects the first source resistance with live wire, by the output end of the first isolating diode to the first driver, the control end of the driver of another termination second of the first commissure electric capacity, one end of second commissure electric capacity connects second source resistance with live wire, by the output end of the second isolating diode to the second driver, the control end of the driver of another termination the 3rd of the second commissure electric capacity, one end of 3rd commissure electric capacity connects the 3rd source resistance with live wire, connect the positive pole of the 3rd isolating diode, the negative pole of the 3rd isolating diode is connected to the output end of the 3rd driver, the control end of the driver of another termination first of the 3rd commissure electric capacity.
Each discoloration driver element by two discoloration drivers, two discoloration driver guiding electric capacity, two discoloration driver boot-strap resistor, two discoloration driver earth resistance, two discoloration drivers source resistance and differential circuit constitute:The control end of each discoloration driver connects an earth resistance,Each discoloration drives output end smoothly and zero line to connect a source resistance,The input ground wire of each discoloration driver,The positive pole of the 3rd isolating diode of each display unit connects two one end of the guiding electric capacity of discoloration driver,The guiding electric capacity other end of discoloration driver one is two-way,The boot-strap resistor of discoloration driver one to the output end of discoloration driver one is connect all the way,Another road connects the steering diode of discoloration driver one to the control end of discoloration driver one,Light the anode for indicating in output one display unit of termination of discoloration driver one,The output of discoloration driver two terminates luminous another anode for indicating in this display unit,The output termination of discoloration driver one changes the control end of driver two,The control end of the output termination discoloration driver one of discoloration driver two.
Differential circuit is made up of differential capacitance, differential steering diode, differential discharge resistance:The live wire of one termination display unit of differential capacitance, the other end is two-way, and differential steering diode to the control end of discoloration driver two is connect all the way, and another road connects differential discharge resistance to ground wire.
Voice level is indicated to be constituted with voice protective resistance by multiple voices:The output end of the discoloration driver two of each display unit connects a voice and indicates series connection voice protective resistance to ground wire.
2nd, by common cathode luminous tube, negative electricity resistance is constituted together for each luminous instruction.
3rd, discoloration driver, display driver, preset device, two elementary cells of switch, complementary two units of vibration, vibration isolated location, two lifting elementary cells all use electronic relay CD4066.
4th, power of the power of partial pressure diode more than other diodes in this measure.
Meaning interpretation to above-mentioned measure is as follows:
First, the principle produced by whole circuit diagram.
The present invention is, as active part, there is 4 independent analog switches, crosstalk very little inside electronic relay CD4066 with the integrated circuit of electronic relay class, and each analog switch has control end and two contacts, and the two contacts are respectively input and output end(If being high-order input termination, when control end has signal, output is a high position, and when input is low level, when control end has signal, output is low level), as an elementary cell, this elementary cell is connected to the exportable high-order new elementary cell with the element of low level output property by single on-off function.This new basic cell structure is to use input end grounding line, with output end by resistant series to system power supply.Its principle is that two switch contacts disconnect, and at this moment output end can export a high position because being connected to source resistance when control end is low level.When control end is for a high position, two switch contacts closure, at this moment output end outputs low level because being connected with ground wire, and now output end is because when connecting ground wire, the source resistance that output end is connected turns into isolation resistance, so power supply will not be with earth short.Wherein the contact control end of elementary cell, is referred to as controlled end, or control end in the present invention.Such base unit is used, multiple independent logic units are devised, overall system of knowing clearly then is designed to by logic unit again.
It is as a kind of outstanding its principle of electricity demonstration device.
When the frequency element surveyed(That is electric capacity, inductance)When being connected in instrument connection two ends, the electric current that atypical complementation oscillation circuit unit is produced is by after the frequency element surveyed, double amplifying units are entered into, carry out lifting and amplified, the output drive of circuit diode-type partial pressure unit part, there are multiple output points the part, the voltage of each output point output is decrement states, and each output point of diode-type partial pressure unit is connected to the signal input part of preset device, and the output end of each preset device is connected to a live wire for display unit in display level.There is an independent live wire in each display unit, this independent live wire could only be connected when preset device exports high-order with system power supply, and display unit could show.Each display unit is that luminous instruction is constituted by discoloration driver element, three display driver elements, three color-changing light-emitting pipes, and two discoloration driver elements control the discoloration of luminous instruction, when preset device exports no-voltage, enclose correspondence display unit.So as to two driver elements do not work, when super preset device threshold voltage, when the preset device has output, corresponding display unit work.Due to diode-type partial pressure unit output point high near the voltage of signal source end, later, decline of successively decreasing, so double amplifying unit output signals are stronger, it is more more than the output point of preset device door, the preset device for having a high position of output is more, thus encourages driving junior unit more.The role of such that it is able to clearly demonstrate out, circuit parameter element, in circuit.
For demonstrating effect is abundant, this measure notice it is following some:
1st, atypical complementation oscillating circuit can turn into the pulse power form of tool frequency, again can as frequency be zero be direct current form, with two kinds of different power supplys, the understanding to frequency part can be promoted.Because two kinds of power supplys will produce very different effect to frequency element.And the conversion of two kinds of power supplys is performed by contact switch, so with various advantages.
2nd, it is the increased frequency-adjustable in atypical complementation oscillation circuit unit, influence of the frequency height to element can be further looked at.
3rd, in amplifying circuit, double amplifying units are employed, its benefit one is good stability, it is possible to achieve the output without quiescent point, when being input no signal, output end no signal;Two is to lift effect simultaneously substantially, and lifting amplification quantity is adjustable, and three is that exchange and direct current can be amplified, efficiency high.
4th, light and sound effective value are employed on demonstrating effect.
5th, on light shows, the function of uniqueness has been collectively constituted by discoloration driver element, display driver element, color-changing light-emitting pipe driver element due to light display level, what this unique function formd two kinds of rules flashes instruction, this does not have in general display circuit, thus novel and unique, is full of entertaining in demonstration.
As a kind of outstanding experimental line for guiding teenager's experiment to make.Mainly there are following characteristics, be conducive to exciting the learning enthusiasm of youth, be conducive to improving the quality-oriented education of student.One is to have focused on theme protrusion, this circuit highlights a kind of integrated circuit by electronic relay, constitute contact switch, the circuit is mainly used for a kind of connecting valve, but by after certain conversion, a kind of break-make contact relation of simply simple unit can be broken through, as a kind of logic unit, thus guiding beginner's positive thinking, while the combination of various logic unit can also be realized further, constitute a kind of new integral framework, thus can further Expand Thinking space and field.Be conducive to education of improving the quality.Two is that all units are made up of the integrated circuit unit of same model.Single varieties, are avoided that beginner produces situation that is numerous and being weary of studying..Three is relatively independent each unit, and each unit contact science, debugging is simple, substantially once filling into.Each unit has certain interest when checking, these features are conducive to teenager to grasp, and is particularly conducive to open up the visual field, extends thinking.
2nd, explanation in atypical complementation oscillation circuit unit.
Atypical complementation oscillation circuit unit is by complementation vibration Unit one(In Fig. 1 2.1), complementary vibration Unit two(In Fig. 1 2.2), complementary vibration Unit one source resistance(In Fig. 1 2.11), vibration isolated location(In Fig. 1 2.3), vibrate adjustable protective resistance(In Fig. 1 2.4), vibration adjustable resistance(In Fig. 1 2.5), oscillating capacitance(In Fig. 1 2.6), vibration isolated location earth resistance(In Fig. 1 2.31), vibration isolation resistance(In Fig. 1 2.7), complementary vibration output earth resistance(In Fig. 1 2.8)Composition.
The line feature of formation is:It is made up of two units, it is the situation for exporting low level to be connected into during for the closing of contact by complementation vibration Unit one, and it is the high-order situation of output to be connected into during for the closing of contact by complementation vibration Unit two.
During energization,When the control end of the complementation vibration output of Unit one is connected with oscillating capacitance,It is low to be unable to transition,Output end is a high position,So two unit control ends of complementary vibration are a high position,Output end is a high position,It is all high-order situation to form two complementary oscillating unit output ends,Form the first half cycle of vibration,Complementation two unit control ends of vibration are a high position,It is high-order by one unit control end of complementary vibration after oscillating capacitance time delay,Its output end is changed into low level,Two unit control ends of complementation vibration are simultaneously low level,Output end is low,Two complementary contacts of oscillating unit two are changed into low level simultaneously,Form the later half cycle of vibration,Such rule is repeated later,It is two complementary oscillating unit output ends while exporting a high position,The situation of low level is exported simultaneously,Form the abnormal type complementation oscillating circuit of " abnormal type " property,It is the oscillator circuit being made up of the integrated circuit of electronic relay.
In foregoing circuit, oscillating capacitance acts as double effect with oscillation resistance, one is that the control terminal voltage of complementary vibration Unit one and the output voltage of complementary vibration Unit two have certain time delay, this becomes the necessary condition of vibration, two is that oscillating capacitance constitutes duration of oscillation constant with oscillation resistance, the time constant determines line oscillation frequency, so adjustment oscillation resistance can adjust frequency of oscillation.
In foregoing circuit, in order that vibration starting of oscillation is easily, oscillatory process is reliable and stable, designer has made following innovation, and one is to be designed as the oscillating capacitance in circuit electrodeless, is to be formed with two capacitances in series, the electric leakage composition of electric capacity is which reduced, the Q values of electric capacity are substantially increased., two is the resistance to earth that make use of one unit control end of complementary vibration, is formed by two resistant series, a conduct vibration adjustable resistance, and another fixed resistance is used as adjustable limitation.Three be complementary vibration Unit two should not resistance to earth, to simplify circuit, improve reliability.Experiment shows that the circuit is worked good with entirety circuit, with it is very strong can implementation type.
Using such circuit, major advantage is as follows:One is line oscillation reliability, stabilization, good as test power source performance.Two is, as experimental line, to describe a kind of outstanding oscillating circuit, Expand Thinking.
3rd, the explanation of contact switch.
Contact is switched by 1.0, button switch(In Fig. 1 1.0), switch the first elementary cell(In Fig. 1 1.1), switch the second elementary cell(In Fig. 1 1.2), switch the first elementary cell state instruction(In Fig. 1 1.11), switch the first elementary cell source resistance(In Fig. 1 1.12), switch guiding electric capacity one(In Fig. 1 1.13), switch boot-strap resistor one(In Fig. 1 1.14), switch steering diode one(In Fig. 1 1.15), switch the first elementary cell earth resistance(In Fig. 1 1.16), switch the second elementary cell state instruction(In Fig. 1 1.21), switch the second elementary cell source resistance(In Fig. 1 1.22), switch guiding electric capacity two(In Fig. 1 1.23), switch boot-strap resistor two(In Fig. 1 1.24), switch steering diode two(In Fig. 1 1.25), switch the second elementary cell earth resistance(In Fig. 1 1.26), switch input resistance(In Fig. 1 1.5), switch output diode(In Fig. 1 1.8)Composition.
Its main purpose is the working condition of the atypical complementation oscillation circuit unit of control, atypical complementation oscillation circuit unit is set to turn into the test source for having frequency, or as the dc source that frequency is zero, allow beholder understand resistance element in the case of both power supplys, physical phenomenon.So as to disclose the relation of resistance element and frequency.
Switch is to the control logic of atypical complementation oscillation circuit unit, the output end for switching the second elementary cell is logic control end, the control end of vibration isolated location is connected to by switching output diode, when contact switch is output as low level, switch output diode is back biased, on connected part without influence, vibration isolated location is by the excitation rule normal work for vibrating.So being output as the pulse power of frequency, when the output end of contact switch is for a high position, the switch output diode for being connected is forward bias, thus makes vibration isolated location control end for a high position, and output end is high-order(Because the input for vibrating isolated location is connected to system power supply, therefore when control end has signal for a high position, output end is connected with system power supply), it is direct current.
Switching the principle for being formed is, the first elementary cell is switched to be connected into for a kind of positive-feedback circuit by what is intersected with switch elementary cell two, if being that the first elementary cell output end of switch is height, then switch elementary cell two output end is low, if instead the first elementary cell output end of switch is low, then it is height to switch the second elementary cell output end.The resistance that the output end of Unit two is connected with power supply is served both functions, and one is when contact is connected with ground wire and isolated from power, is not short circuit, two is when guiding electric capacity into negative pressure, the control signal that steering diode positive pole is connected, takes away with power supply, will not short circuit.
Button switch and boot-strap resistor three, constitute the button circuit of high-order low-end trim in switch, wherein connection turret terminal is button line output, the principle of formation is, when button switch is off-state, because one end of switch input resistance is connected to system power supply, the other end is a high position.When button switch is closure state, because the end of switch output resistance is connected to ground wire, low level is output as.
When being powered, if the output end of the second elementary cell of switch is a high position, the output end for switching the first elementary cell is low level, and when button switch is not pressed, to disconnect, guide line output end is a high position to button switch normally opened contact.Now the output end with guiding electric capacity one, boot-strap resistor one, the first elementary cell of switch is formed charge circuit by switch input resistance.And the output end for switching the second elementary cell with two boot-strap resistor of guiding electric capacity two forms open circuit.When button switch normally opened contact is for closure, button circuit output is low level, and guiding electric capacity one is because being unable to its negative pole of transition as negative pressure state.By the transmission of steering diode one.It is negative to switch the first elementary cell control signal, so that it is a high position to switch the second elementary cell output end, realizes upset.
When button normally opened contact is again off, boot-strap resistor three forms charge circuit with the output end of guiding electric capacity two, boot-strap resistor two, the second elementary cell of switch.And form open circuit with the output end of guiding electric capacity one, boot-strap resistor one, the first elementary cell of switch.When button normally opened contact is for closure, button line output is low level, and guiding electric capacity two is because being unable to its negative pole of transition as negative pressure state.By the transmission of steering diode two.It is low to switch the second elementary cell input, so that it is a high position to switch the second elementary cell output end, upset is realized again, and later inversion principle is the same.
Using mainly there is benefit following prominent after electronic switch, one is that button is that one kind touches button, while also allowing for installment state instruction.It is overall high-grade, benefit from, two is that button belongs to a kind of common components, it is easy to bought.Three is that button switch does not produce fly line in production, directly can produce and contact with printed panel, while circuit reduction, thus product quality can be further ensured that.Four be as make experimental line be conducive to expand teenager's thinking.
4th, the explanation of double amplifying units.
The line feature one of this part is that the oscillating unit of Part I has been collectively constituted using atypical complementation oscillation circuit unit, and two is to lift elementary cell by two of this part(5.3 and 5.5 in Fig. 1), commutation diode(5.0 in Fig. 1), one-level electric capacity(5.01 in Fig. 1), two-stage hoisting diode(5.1 in Fig. 1), two-stage hoisting electric capacity(5.11 in Fig. 1), three-level lifting diode(5.2 in Fig. 1), three-level lifting electric capacity(5.21 in Fig. 1), one-level lifting elementary cell earth resistance(5.31 in Fig. 1), one-level lifting elementary cell source resistance(5.32 in Fig. 1), penetrate with triggering resistance(5.7 in Fig. 1), penetrate with amplifier tube(5.8 in Fig. 1)Part II is collectively constituted.
The main purpose of the unit is that the voltage of atypical complementation oscillation circuit unit can produce the situation of voltage decline after frequency element is testing capacitor, inductance(Because there is a capacitive reactance, or induction reactance pressure drop), after lifting circuit behind the part, energy has been lifted, thus is more explicit display effect.
The circuit must have two characteristics of weight, and one is that, with good amplification characteristic, two is when lifting the input no signal of circuit, to export no signal, is that output does not produce additional static current potential.
The principle of formation is, two inputs of elementary cell that the oscillating unit signal of Part I has been passed in this grade, so the two the elementary cell output ends in this grade are respectively the output state of low state high, and capacitance connection is lifted in the output end of the two elementary cells, so the state change of height can occur therewith.
After demonstration element connects circuit, DC voltage is filled with one-level electric capacity after over commutation, when the first elementary cell of voltage increase output end is low, one-level lifts electric capacity and charged to two-stage hoisting electric capacity by two-stage hoisting diode, as one times of voltage.
When the first elementary cell output end is for a high position, the voltage of one-level electric capacity turns into double voltage through the lifting elementary cell output end superposition of overvoltage one-level, when two-stage hoisting elementary cell output end voltage is low level, two times of voltages charge on three-level lifting electric capacity, when two-stage hoisting elementary cell output end voltage is high-order, two times of voltages are superimposed the voltage that trebles by the output end voltage, are consequently formed lifting circuit.
The present invention using two elementary cell three times voltage lifting circuits have the advantages that five it is prominent:
One is the one-level lifting electric capacity when no signal is input into, no-voltage, so output can not possibly produce multiplication of voltage effect.It is zero volt, the output for being the circuit does not produce additional static current potential.
Two is that it is of special importance that the voltage on one-level lifting electric capacity is based on the voltage after test resistance element step-down, resistance is of different sizes, and the magnitude of voltage of generation is also different, so the booster tension quantity for producing also differs not sample.That is to say that the basis of three times voltage depends on the voltage after resistance element step-down, output and the electric capacity capacitive reactance tested of lifting circuit have direct relation.
Three because employ two elementary cell three times voltage lifting circuits of double amplifications, efficiency high, required time is relatively few, so sensitivity is higher.
Four is that the output of the circuit and diode-type partial pressure unit have emitter follower to make to isolate, so the circuit has good load capacity.
Five is as Part I, as enjoying jointly, and to be only used as isolation with two lifting elementary cells of this part with atypical complementation oscillation circuit unit, simplifies circuit, has positive meaning to improving reliability, production.
5th, the explanation of diode-type partial pressure unit.
Diode-type partial pressure unit by Multilevel partial-pressure diode, Multilevel partial-pressure resistance, multi-stage initialization device composition partially partially under diode, partial pressure under aisle resistance, partial pressure over the ground.
It is characterized in:Every grade of partial pressure diode by two Diode series into, every grade of partial pressure Diode series, its series connection point connects partial pressure aisle resistance over the ground, each series connection point turns into a partial pressure output point, because the parameter of each diode is equal, so as to from input to earth terminal, form the stepped-up voltage output of voltage.When input terminal voltage is high, then the quantity of the partial pressure diode that can puncture is more.Then have the output point of high-order output many, when the voltage of the output of each output point, higher than connected preset device door when, the closing of contact of preset device two, output end connection system power supply output is high-order, and paired display unit is energized, so as to display occur.
The unit is made up of multiple preset devices, and the input of each preset device is connected to system power supply, and the startup of each preset device is required for the partial pressure output point output of partial pressure level high-order, thus ensure display unit will not malfunction.
6th, in light display level display driver element explanation.
Due to being made up of three display driver elements in each light display level.Signal is stronger, and the display unit of excitation is more, and shown luminous instruction is more.It is luminous to indicate the bright state feature to be:As continuous-flow type.It is luminous to indicate bright to be innervation.Luminous instruction is bright must be more remote, and its whole night is that abstract electric current is likened into current.
So during diode-type partial pressure unit output point no-voltage, all equal no-voltages of preset device input for being connected, the luminous instruction of display unit does not work, so not working.When the partial pressure output point of diode-type partial pressure unit is into a high position, the preset device output end for being connected is height, and power supply and the system power supply of display driver element are connected, so display driver element turns into working condition, lighting, it is glittering to indicate.
The line construction of each display unit is the same.So only with the first display unit explanation.
A feature in display unit circuit is that each display unit has an independent live wire,(It is VCC2 in figure)With system power supply line(VCC)It is not attached to, with box indicating, each display driver, the power end of discoloration driver need the power end being connected to connect together to each display unit with unit line in display unit, are in the accompanying drawings(VCC2), the output end of the point and corresponding preset device is connected.Therefore when preset device output end is for a high position, the independent live wire of display unit(It is VCC2 in Fig. 2)With system power supply(VCC)It is connected, the cell operation.Conversely, when the output end of preset device is low level, independent live wire is not connected with system power supply, and the live wire of display unit does not work without electricity.
At steady state, specific the first bright rule of luminous instruction is:After circuit stability, the luminous instruction of the first display driver institute band was bright before this, and the luminous instruction of second and third display driver is put out, and was afterwards that the luminous instruction of display driver is bright, and first puts out with the luminous instruction of three display drivers.Third for the luminous instruction of the 3rd display driver is bright, the luminous instruction of first and second display driver is put out.Then circulate.
The reason for forming glittering driving be:Because three display drivers(In Fig. 2 9.111,9.112,9.113)In design, inclined resistance is inconsistent with other two in first display driver control end, two contacts for easily causing the first display driver first close, and output end is first low level, and the luminous instruction of the display driver institute band is bright, because the first commissure capacitance voltage now between the first display driver output end and the second display driver is unable to transition, into negative pressure, output end is a high position to second display driver control signal, and institute's band is luminous to be designated as putting out.Inclined resistance in second display driver control end(In Fig. 2 9.1123)Charged to the first commissure electric capacity, when voltage controls terminal voltage more than the second display driver, second display driver output end is low level, the luminous instruction of the second display driver institute band is bright, the second commissure capacitance voltage between 3rd display driver control end and the second display driver output end is unable to transition, into negative pressure, output end is a high position to 3rd display driver control end, and institute's band is luminous to be designated as putting out.Now inclined resistance in the 3rd display driver control end(In Fig. 2 9.1133)Charged to the second commissure electric capacity, when voltage is more than the 3rd display driver control end threshold voltage, 3rd display driver output end is low level, the luminous instruction of the 3rd display driver institute band is bright, because now the output end of the 3rd display driver is unable to transition with the 3rd commissure capacitance voltage of the first display driver control end, into negative pressure, output end is a high position to first display driver control end, and institute's band is luminous to be designated as putting out.Now inclined resistance charges to the 3rd commissure electric capacity in the display driver control end, and to after threshold voltage, the first display driver output end is low, and the luminous instruction of institute's band is bright again, as circulation.
6th, the explanation of discoloration driver element.
Each discoloration driver element by two discoloration drivers, two discoloration driver guiding electric capacity, two discoloration driver boot-strap resistor, two discoloration driver earth resistance, two discoloration drivers source resistance and differential circuit constitute, line feature is, two anodes of common cathode luminous tube respectively connect a discoloration driver element in each luminous instruction, and the power supply of two discoloration driver elements links together, so two discoloration driver element synchronous workings.
The Main Function of the unit is to make display luminous tube reveal two kinds of colors of rule to carry out flashing for continuous-flow type, the flowing as water.
Specifically rule is:Luminous instruction is that the first colour light emitting flashes first, after last display driver starts, new endless form presses second color, and circulation is flashed forward with what original mode carried out continuous-flow type, after last display driver starts, the endless form of third time presses the first color again, and what original mode carried out continuous-flow type flashes forward circulation, then by such endless form, circulation is gone down forever, and prime will not be equally with this color.
The reason for producing two kinds of color variations rules.
Two output ends of two discoloration drivers in discoloration driver element are connected to two anodes of common cathode luminous tube respectively, and the characteristic of common-anode luminous tube is, when the first anode is for a high position, it is a kind of color, when second plate is for a high position, it is then second color, is the third color when two anodes are all a high position.
Discoloration driver is collectively constituted by first and second discoloration driver and peripheral element, wherein the control end of the second discoloration driver is connected with differential capacitance.The tie point of two guiding electric capacity is input in discoloration driver.The input has been connected to the output end of last display driver.The control end of the second discoloration driver is connected with differential circuit, and the control end is first a high position when energized, and output end is low level.The output end of the first discoloration driver is a high position.Ensure that the color of starting.
When the output end of last display driver is for a high position, at this moment can be with the low order end of the second discoloration driver, the guiding electric capacity of the second discoloration driver, the boot-strap resistor of the second discoloration driver forms charge circuit, when the output end of last display driver is low level, finished because the guiding electric capacity of the second discoloration driver has charged, it is unable to transition, its negative pole turns into negative pressure, by the transmission of steering diode, the output of the second discoloration driver is changed into high-order from low level, because the second discoloration driver and the output of the first discoloration driver are connected to feedback with control end, so when the second discoloration driver is output as a high position, first discoloration driver is output as low level, form upset.When the output end of last display driver is for a high position, at this moment the low order end again with the first discoloration driver forms charge circuit, is consequently formed circulation.
So luminous indicate when circulating first time, the two-color diode first anode is a high position, and during circulation, luminous tube is flashed with the circulation that the first color makees continuous-flow type.When being triggered again, discoloration driver upset, common cathode luminous tube second plate is a high position, and it is a high position that the first anode is constantly pressed later, and then second plate is bit map high, and color change is constantly carried out with this rule, and this color will not be identical with last time color.
7th, music sound explanation.
When the second discoloration driver output end is high, musical film has direct current channel, so sending music.
Have the advantages that after implementation following prominent:
First, there are following characteristics as a kind of science popularization scope:
1st, electricity is important content in physics.And for beginner, understand relatively easy to galvanic, and the influence to the electric current with frequency to circuit element can feel abstract.And the demonstration of this instrument can make the abstract concept of beginner become actual.Therefore there is positive effect to studying electricity in depth.Concrete condition have it is following some:
(1), because this demonstrator in abnormal type complementation oscillation source can contact switch switching under, the pulse power can be changed into, it is also possible to be changed into direct current, it is possible to clearly demonstrate out resistance element(Such as electric capacity, or inductance)In the situation that frequency is zero(It is direct current), it is entirely different with the physical phenomenon in the case of the pulse current with frequency.
Such as electric capacity(Electric capacity its construction is two pieces of disjunct conductive materials planes), this special construction under DC state, is being only possible to the disposable charging in transient state ground, finally as off state(Show as display portion luminous tube transient state it is bright once, then put out entirely).But under the pulse power of frequency, theatrical change is but there occurs, because this disjunct two sides can be smoothly through electric current.
It is a good good conductor if inductance is under DC state,(The luminous tube for showing as display portion is always bright state, into flowing water shape, and from the beginning to the end)But in the pulse current by frequency, but under the pulse power of frequency, theatrical change is but there occurs, because this end to end wire but has resistance to electric current, its physical characteristic changes completely.(The luminous tube for showing as display portion only manifests the bright state of part, is reduced into flowing water shape, i.e. light brighten the hair pipe).
(2), the atypical complementation oscillation circuit unit of the present invention frequency-adjustable.Can demonstrate out that frequency is higher, the impact effect to frequency element is bigger, such as same parameters electric capacity, frequency is higher, and conduction is better,(The luminous tube for showing as display portion manifests the bright state of part, and into flowing water shape, light brighten the hair pipe increases).
And for example same parameters inductance coil, frequency is higher, and the resistance that it is presented is bigger.(The luminous tube for showing as display portion manifests the bright state of part, is reduced into flowing water shape, but light brighten the hair pipe).
(3), can demonstrate out, under same voltage, electric capacity is bigger, and capacitive reactance is smaller, is smaller to the resistance of electric current, and inductance is bigger, then induction reactance is bigger, is bigger to the resistance of electric current.(The luminous tube for showing as display portion manifests the bright state of part, and into flowing water shape, light brighten the hair pipe increases).
(4), the main inside reason of the size that capacitive reactance is presented in electric capacity can be demonstrated out, disjunct two conducting surface in inside of such as electric capacity is bigger, then capacitive reactance is smaller, and the insulating barrier between two conducting surfaces is thicker, then capacitive reactance is smaller.(The luminous tube for showing as display portion manifests the bright state of part, and into flowing water shape, light brighten the hair pipe increases).
(5), the main inside reason of the size that induction reactance is presented in inductance can be demonstrated out, the diameter of such as coil is bigger, then induction reactance is bigger, otherwise induction reactance is fewer,.(The luminous tube for showing as display portion manifests the bright state of part, and into flowing water shape, light brighten the hair pipe increases).
(6)Whether induction reactance also has permeability magnetic material relevant with coil, and relevant with the property of permeability magnetic material.
2nd, excellent performance master be now embodied in it is following some:
(1), due to having display driver element and discoloration driver element in light display level, two kinds of units have collectively constituted the function of uniqueness, and what this unique function formd two kinds of rules flashes instruction, and novel and unique can not be looked into circuit, and one is.Signal is stronger, and shown junior unit is more, and luminous tube is bright must be more remote.Two is luminous tube bright to after termination, can produce loop cycle, and the tube light that lights is innervation.As a kind of gradual, continuous-flow type, three is every time that new circulation is different with previous color, is shown in light, and entertaining is full of in demonstration.This circuit being made up of this logic element does not have data introduction.
(2), presentation process light and sound show and deposit, when glittering luminous tube periodically sends transient state music in a timing.Delight effect is increased, beholder teaches through lively activities.
(3), contact switching manipulation be button, have benefit following prominent, one is that button is that one kind touches button, good hand touch.Two be often by a state transformation once, it is easy to operate.Three can be clearly show be current control state, DC state in this way, at this moment indicator lamp is a kind of color, in this way the frequency power source of pulse, again can be overall high-grade in clear Chu Ming Liao into another place's color.Four is that button switch does not produce fly line in production, directly can produce and contact with printed panel, thus can be further ensured that product quality.Five is that button belongs to a kind of common components, it is easy to bought.These advantages, also allow for hookup purchase.
(4 ), display quantification effect it is good, the range of components of demonstration is wide, circuit stabilization.One because double amplifying units, in the absence of initial potential, as long as be prime without input signal, diode-type partial pressure unit exports each output point and does not export a high position, and display portion does not show.Hereby it is ensured that display is accurate.Two because double amplifying units of this instrument thus have sensitivity higher, and to when capacitive reactance is larger, can also clearly show that, three is the amplifying circuit has amplification in pulse condition and DC state.More flexibility.Adaptive surface is wide.
(5), the concept of resistance, insulator, electric current can be demonstrated out, demonstrate out when the timing of voltage one, the relation between electric current and resistance.Resistance is bigger, the smaller visual effect of electric current.More basic electricity knowledge is set up with the student for making the age smaller.
(6), the elementary cell made of present invention electronic relay, dependable performance, the contact between constituent parts rationally, so overall circuit logic is strong, science.
3rd, because above-mentioned some reason, while this instrument of institute belongs to the popular demonstrator of primary.Adapt to wide, primary school and middle school and Popular Science Education are all well suited for, have much room the need for society.Good social benefit can be produced.
4th, the active part of this instrument is in addition to only one triode, entirely a kind of integrated circuit of model, and this is to buying, plug-in unit, all very easily, so easily production.
5th, debug simple, without high end equipment, be easy to minitype enterprise to produce.
6th, had the advantage that and feature as a kind of experimental self-control circuit.
Circuit of the present invention is simplified, and each unit contact science, operability is very strong, therefore can be conigenous row experiment installation with heuristics, by self-control, can further improve students ' practical ability and practical level, and this has positive meaning to improving students ' quality.And the present invention there are following characteristics in self-control, thus it is very suitable for self-control.
1st, active part is in addition to a triode, all electronic integrated circuit relay groups into elementary cell combination form, therefore it is easy to beginner to the understanding of the adhesive integrated circuit, due to active part single varieties, give prominence to the key points, beginner is conducive to learn, it is to avoid numerous and be weary of studying, or not rotten situation of grasping too much.And this script only has the device of on-off function, it is high-order with low most basic logic element that can constitute with output end, followed by and various basic logic circuits can be formed, various functions of series can be developed into again, beginner's positive thinking thus can be guided, imagination space is expanded, is conducive to education of improving the quality.
2nd, each several part independence, partly can check for unit is powered.And each is partially filled with certain interest.(The display concrete condition of its light and sound is as previously described).
3rd, between each several part between connect science, will not substantially produce failure, thus complete part debug after, so that it may complete overall work.
Brief description of the drawings
Fig. 1 is atypical complementation oscillation circuit unit, contact switch, the electronic circuitry of double amplifying units in atypical multi resonant source formula frequency viewer.
In figure:1.0th, button switch;1.1st, the first elementary cell is switched;1.2nd, the second elementary cell is switched;1.11st, the first elementary cell state instruction is switched;1.12nd, the source resistance of the first elementary cell is switched;1.13rd, switch guiding electric capacity one;1.14th, boot-strap resistor one is switched;1.15th, steering diode one is switched;1.16th, the first elementary cell earth resistance is switched;1.21st, the second elementary cell state instruction is switched;1.22nd, the source resistance of the second elementary cell is switched;1.23rd, switch guiding electric capacity two;1.24th, boot-strap resistor two is switched;1.25th, steering diode two is switched;1.26th, the second elementary cell earth resistance is switched;1.5th, input resistance is switched;1.8th, output diode is switched;2.1st, complementary vibration Unit one;2.2nd, complementary vibration Unit two;2.11st, the source resistance of complementary vibration Unit one;2.3rd, isolated location is vibrated;2.4th, adjustable protective resistance is vibrated;2.5th, adjustable resistance is vibrated;2.6th, oscillating capacitance;2.31st, the earth resistance of isolated location is vibrated;2.7th, isolation resistance is vibrated;2.8th, the output earth resistance of complementary vibration;3rd, instrument connection;5.0th, commutation diode;5.01st, one-level electric capacity;5.1st, two-stage hoisting diode;5.11st, two-stage hoisting electric capacity;5.2nd, three-level lifting diode;5.21st, three-level lifting electric capacity;5.3rd, one-level lifting elementary cell;5.31st, one-level lifting elementary cell earth resistance;5.32nd, one-level lifting elementary cell source resistance;5.5th, two-stage hoisting elementary cell;5.7th, penetrate with triggering resistance;5.8th, penetrate with amplifier tube;5.9th, it is double to put unit output.
Fig. 2 is diode-type partial pressure unit in atypical multi resonant source formula frequency viewer, light display level, the electronic circuitry of voice level.
In figure:5.9th, it is double to put unit output;6.11st, first order partial pressure diode;6.12nd, one-level partial pressure aisle resistance over the ground;6.13rd, one-level preset device;6.N1, last component pressure diode;6.N2, afterbody partial pressure aisle resistance over the ground;Inclined diode under 6.N3, afterbody preset device 6.X1, partial pressure;Inclined resistance under 6.X2, partial pressure;9.1st, the first display unit;9.111st, the first display driver of the first display unit;9.1111st, inclined resistance under the first display driver control end of the first display unit;9.1112nd, the first of the first display unit is luminous indicates;9.1113rd, inclined resistance in the first display driver control end of the first display unit;9.1115th, first display unit the first commissure electric capacity;9.1116th, the first isolating diode of the first display unit;9.1118th, the source resistance of the first display driver of the first display unit;9.112nd, the second display driver of the first display unit;9.1121st, inclined resistance under the second display driver control end of the first display unit;9.1122nd, the second of the first display unit is luminous indicates;9.1123rd, inclined resistance in the second display driver control end of the first display unit;9.1125th, first display unit the second commissure electric capacity;9.1126th, the second isolating diode of the first display unit;9.1128th, the source resistance of the second display driver of the first display unit;9.113rd, the 3rd display driver of the first display unit;9.1131st, inclined resistance under the 3rd display driver control end of the first display unit;9.1132nd, the 3rd of the first display unit is luminous indicates;9.1133rd, inclined resistance in the 3rd display driver control end of the first display unit;9.1135th, the commissure electric capacity of the first display unit the 3rd;9.1136th, the 3rd isolating diode of the first display unit;9.1138th, the source resistance of the 3rd display driver of the first display unit;9.12nd, the first display unit discoloration driver one;9.121st, the guiding electric capacity of the first display unit discoloration driver one;9.122nd, the source resistance of the first display unit discoloration driver one;9.123rd, the boot-strap resistor of the first display unit discoloration driver one;9.125th, the earth resistance of the first display unit discoloration driver one;9.126th, the steering diode of the first display unit discoloration driver one;9.13rd, the first display unit discoloration driver two;9.131st, the guiding electric capacity of the first display unit discoloration driver two;9.132nd, the source resistance of the first display unit discoloration driver two;9.133rd, the boot-strap resistor of the first display unit discoloration driver two;9.135th, the earth resistance of the first display unit discoloration driver two;9.136th, the steering diode of the first display unit discoloration driver two;9.137th, the differential capacitance of the first display unit discoloration driver two;9.138th, the differential steering diode of the first display unit discoloration driver two;9.139th, the differential discharge resistance of the first display unit discoloration driver two;9.N, last display unit;First display driver of 9.N11, last display unit;Inclined resistance under 9.N111, the first display driver control end of last display unit;The first luminous instruction of 9.N112, last display unit;Inclined resistance in 9.N113, the first display driver control end of last display unit;9.N115, last display unit the first commissure electric capacity;First isolating diode of 9.N116, last display unit;The source resistance of 9.N118, the first display driver of last display unit;Second display driver of 9.N12, last display unit;Inclined resistance under 9.N121, the second display driver control end of last display unit;The second luminous instruction of 9.N122, last display unit;Inclined resistance in 9.N123, the second display driver control end of last display unit;9.N125, last display unit the second commissure electric capacity;Second isolating diode of 9.N126, last display unit;The source resistance of 9.N128, the second display driver of last display unit;3rd display driver of 9.N13, last display unit;Inclined resistance under 9.N131, the 3rd display driver control end of last display unit;The 3rd luminous instruction of 9.N132, last display unit;Inclined resistance in 9.N133, the 3rd display driver control end of last display unit;9.N135, last commissure electric capacity of display unit the 3rd;3rd isolating diode of 9.N136, last display unit;The source resistance of 9.N138, the 3rd display driver of last display unit;9.N2, last display unit discoloration driver one;The guiding electric capacity of 9.N21, last display unit discoloration driver one;The source resistance of 9.N22, last display unit discoloration driver one;The boot-strap resistor of 9.N23, last display unit discoloration driver one;The earth resistance of 9.N25, last display unit discoloration driver one;The steering diode of 9.N26, last display unit discoloration driver one;9.N3, last display unit discoloration driver two;The guiding electric capacity of 9.N31, last display unit discoloration driver two;The source resistance of 9.N32, last display unit discoloration driver two;The boot-strap resistor of 9.N33, last display unit discoloration driver two;The earth resistance of 9.N35, last display unit discoloration driver two;The steering diode of 9.N36, last display unit discoloration driver two;The differential capacitance of 9.N37, last display unit discoloration driver two;The differential steering diode of 9.N38, last display unit discoloration driver two;The differential discharge resistance of 9.N39, last display unit discoloration driver two;10.1st, the first voice is indicated;10.11st, the first voice protective resistance;10.N, last voice are indicated;10.N1, last voice protective resistance.
Specific implementation example
Fig. 1, Fig. 2 describe a kind of mode of specific implementation jointly.
First, element is selected:Active part is selected by figure, negative electricity resistance is constituted together by common cathode luminous tube for each luminous instruction.Discoloration driver, display driver, preset device, two elementary cells of switch, complementary two units of vibration, vibration isolated location, two lifting elementary cells all use electronic relay CD4066.Power of the power of partial pressure diode more than other diodes in this measure.It is short period class that musical film is used when ringing.Button switch uses the species that can be directly welded with printed panel.Electric capacity is from the small species of electric leakage.Resistor is without particular/special requirement.
2nd, weld:Diode-type partial pressure unit in atypical multi resonant source formula frequency viewer, light display level, the electronic circuit of voice level is connected as shown in Figure 1, diode-type partial pressure unit, light display level, and the electronic circuit of voice level is welded as shown in Figure 2.The luminous tube that contact on off state is indicated is different colors.
3rd, debug.
1st, check and the atypical complementation oscillation source of scheduling.
A, it is grounded with frequency counter its cold end, the output end of hot junction connection complementary vibration Unit one now, has frequency and show, is that Miswire or oscillating capacitance leak electricity if nothing.
B, with frequency counter, the output end of connection complementary vibration Unit two, regulating frequency adjustable resistance, oscilloscope display waveform can change, and within the requirement of design.If incorrect, adjustable connected fixed resistance resistance should be adjusted, its rule is bigger resistance, and frequency is slower.
2nd, check and the double amplifying units of debugging.
With oscillograph or general-purpose table look-up, the key points at different levels of double amplifier sections, cold end ground connection are sequentially connected with oscillograph hot junction.
A, surveyed with oscillograph hot junction lifted in elementary cell output end in one-level first, now oscillograph has waveform to show, is otherwise that the control end of the elementary cell is not connected with atypical complementary oscillation circuit unit, should check circuit.
B, with oscillograph hot junction survey in two-stage hoisting elementary cell output end, now oscillograph has waveform to show, be otherwise two-stage hoisting elementary cell control end with one-level lifted elementary cell output end connect.
Then inductively or capacitively it is connected on instrument connection with one.
C, with oscillograph hot junction connect one-level electric capacity(In Fig. 1 5.01)Anode, now the waveform of oscillograph is direct current shape, is otherwise commutation diode(In Fig. 1 5.0)Weldering is wrong.
D, with oscillograph hot junction connect two-stage hoisting electric capacity(In Fig. 1 5.11)Anode, now the waveform of oscillograph is direct current shape, but amplitude should double than the amplitude at one-level electric capacity.It is to be connected in that two-stage hoisting condenser welding is wrong or failure as incorrect.
E, with oscillograph hot junction connect three-level lifted electric capacity(In Fig. 1 5.21)Positive pole, now the waveform of oscillograph is direct current shape, but amplitude should be three times of the amplitude at one-level electric capacity.It is that three-level lifting condenser welding is wrong or failure as incorrect.
F, with oscillograph hot junction connect penetrate with amplifier tube(In Fig. 1 5.8)Emitter stage, now the waveform of oscillograph is direct current shape, but it is three times of the amplitude at one-level electric capacity that amplitude should be, and is otherwise to penetrate to weld wrong with the pin of amplifier tube.
3rd, check and debugging contact switch.
With oscillograph or general-purpose table look-up.
A, use oscillograph(Or universal meter)The elementary cell of positive pole connecting valve first(In Fig. 1 1.1)With switch the second elementary cell(In Fig. 1 1.2)Output end, now if the first elementary cell output end of switch is low, it is a high position then to switch the output end of the second elementary cell, if instead it is a high position to switch the output end of the first elementary cell, the output end for then switching the second elementary cell is low level, otherwise, it is the feedback cross line connection error of interconnection in two elementary cells, fails to realize positive feedback.
B, use oscillograph(Or universal meter)Positive pole connecting terminal formula switch output end, now should be high-order, be otherwise Miswire, switch input resistance is not connected in system power supply.
C, use oscillograph(Or universal meter)The elementary cell of positive pole connecting valve second output end, while pressing button switch, loose one's grip afterwards, now switch the output end of the second elementary cell and should make one-shot change low level is such as changed into from a high position, be that the polar orientation of steering diode one is even wrong if incorrect.
D, use oscillograph(Or universal meter)The elementary cell of positive pole connecting valve second output end, button switch is pressed again, the output end for now switching the second elementary cell will again occur one-shot change, be such as changed into high-order again from low level, it is that the polar orientation of steering diode two is even wrong if incorrect.
4th, check and debugging diode-type partial pressure unit part.
On instrument connection, a testing capacitor is connected, the frequency of the atypical complementation oscillation circuit unit of regulation increases frequency, and the diode-type partial pressure unit high position output point that now occurring has output increases.
On instrument connection, a test inductance is connected, the frequency of the atypical complementation oscillation circuit unit of regulation increases frequency, and the diode-type partial pressure unit output end that now occurring has output is reduced.
When the output point of diode-type partial pressure unit is for a high position, the preset device base output end that the point is connected is output as a high position, is otherwise that aisle resistance resistance is excessive over the ground.
5th, check and display driver element.
A, diode-type partial pressure unit output point it is high-order many when, display unit is bright must be more, if it is not, should check whether preset device and the zero line VCC2 of display driver element have electricity, if being that the output end of preset device and the power line of display unit are not connected with without if.
B, at steady state, display unit lights when indicating bright situation, one bright two puts out, be the first display driver institute band before this luminous instruction it is bright, the luminous instruction of second and third display driver institute band is put out, be afterwards the second display driver institute band luminous instruction it is bright, the luminous instruction of the first, the 3rd display driver institute band is put out.Third for the luminous instruction of the 3rd display driver institute band is bright, the luminous instruction of first, second display driver institute band is put out.Then circulate.
6th, check and discoloration driver element.
A, the differential circuit for disconnecting the discoloration control end of driver two.Use oscillograph(Or universal meter)Positive pole connection discoloration driver one with discoloration the output end of driver two, if the output end of wherein discoloration driver one is a high position, the output end of the driver two that changes colour is low level, otherwise, it is the feedback cross line connection error of two drivers interconnection, fails to realize positive feedback.
B, the connection for guiding electric capacity for disconnecting the 3rd display driver output end and two discoloration drivers, power end is touched with the positive pole of the guiding electric capacity of discoloration driver, then ground wire is contacted again, now the output end of two discoloration drivers will occur one-shot change, step in repetition, its output end will again become raw one-shot change, otherwise be that circuit is wrong, and its steering diode polarity welds anti-or sealing-off.
C, the differential circuit for recovering the discoloration control end of driver two, during energization.Discoloration driver two output end is low level, and discoloration driver one output end is a high position, is otherwise differential circuit connection error.
D, the connection for guiding electric capacity for recovering the 3rd display driver output end and two discoloration drivers, after first time, circulation was finished, glittering for the second time is second color, and into the circulation of flashing of flowing water shape, this rule will last till the beginning demonstrated next time.It is that the output end of two discoloration drivers and the anode line of the common cathode luminous tube of luminous instruction are not connected with if incorrect.
When E, the driver two that changes colour each time are output as a high position, voice indicates that musical sound can be sent.Should otherwise check that voice indicates whether sealing-off.
7th, check that the pulse power is the working condition under DC state.
The pulse power is switched under DC state with button switch, now oscillograph is shown as direct current.
On instrument connection, connect a testing capacitor, at this moment display unit occur transient state it is bright once.
On instrument connection, a test inductance is connected, at this moment display level occurs the bright situation of all units.
On instrument connection, the resistance of different resistances is connected, if resistance is smaller, bright unit is more.
Claims (4)
1. atypical multi resonant source formula frequency viewer, it is characterized in that:By instrument connection, atypical complementation oscillation circuit unit, contact switch, double amplifying units, diode-type partial pressure unit, light display level, voice level is collectively constituted;
Wherein:Atypical complementation oscillation circuit unit by complementation vibration Unit one, complementary vibration Unit two, the source resistance of complementary vibration Unit one, vibration isolated location, vibrate adjustable protective resistance, vibration adjustable resistance, oscillating capacitance, the earth resistance of vibration isolated location, vibration isolation resistance, complementary vibration output earth resistance constitute:The input end grounding line of complementation vibration Unit one,The source resistance of complementation vibration Unit one is connected between the output end of system power supply and complementary vibration Unit one,The control end of output termination complementary vibration Unit two of complementation vibration Unit one,The control end of output termination complementary vibration Unit one of complementation vibration Unit two,Vibration adjustable resistance and the adjustable protective resistance of vibration are connected between the control end of complementary vibration Unit one and ground wire,Oscillating capacitance is connected between the control end of complementary vibration Unit one and ground wire,Vibration isolation resistance is connected on the output end of complementary vibration Unit two and the control end of vibration isolated location,Vibration isolation resistance is connected between the control end of vibration isolated location and ground wire,The input of complementation vibration Unit two and the input terminating systems power supply of vibration isolated location,The output end for vibrating isolated location is the output of atypical complementation oscillation circuit unit,With the indirect complementary vibration output earth resistance of ground wire;
Contact is switched by button switch, switch the first elementary cell, switch the second elementary cell, switch the first elementary cell state instruction, switch the source resistance of the first elementary cell, switch guiding electric capacity one, switch boot-strap resistor one, switch steering diode one, switch the first elementary cell earth resistance, switch the second elementary cell state instruction, switch the source resistance of the second elementary cell, switch guiding electric capacity two, switch boot-strap resistor two, switch steering diode two, switch the second elementary cell earth resistance, switch input resistance, switch output diode;Composition:The control end for switching two elementary cells all connects an earth resistance with ground wire;A source resistance is connect between the output end and system power supply that switch two elementary cells respectively, also with an indirect state instruction of system power supply;One end ground wire of button switch, two positive poles of guiding electric capacity of another termination, switch input resistance is connected between the positive pole of system power supply and two guiding electric capacity, the other end of switch guiding electric capacity one is two-way, switch boot-strap resistor one to the output end of the first elementary cell of switch is connect all the way, another road connects switch steering diode one to the control end of the first base unit of switch, the other end of switch guiding electric capacity two is two-way, switch boot-strap resistor two to the output end of the second base unit of switch is connect all the way, it is another
Road connects switch steering diode two to the control end of the second elementary cell of switch, the output end for switching the first elementary cell connects with the control end of the second elementary cell of switch, the output end for switching the second elementary cell connects with the control end of the first elementary cell of switch, the output end for switching the second elementary cell is the output of contact switch, connects switch output diode to the control end of vibration isolated location;
Double amplifying units by commutation diode, one-level electric capacity, two-stage hoisting diode, two-stage hoisting electric capacity, three-level lifting diode, three-level lifting electric capacity, one-level lifting elementary cell, one-level lifting elementary cell earth resistance, one-level lifting elementary cell source resistance, two-stage hoisting elementary cell, penetrate with triggering resistance, penetrate and constituted with amplifier tube:The output of atypical complementation oscillation circuit unit is followed by commutation diode to the positive pole of one-level electric capacity by instrument connection,The negative pole ground wire of one-level electric capacity,The positive pole of one-level electric capacity connects two-stage hoisting diode to the positive pole of two-stage hoisting electric capacity,The positive pole of two-stage hoisting electric capacity lifts diode with the indirect three-level penetrated with the one end for triggering resistance,The positive pole of three-level lifting electric capacity connects the negative pole that three-level lifts diode,The control end of control termination complementary vibration Unit two of one-level lifting elementary cell,One-level lifting elementary cell earth resistance is connected on the control end that ground wire lifts elementary cell with one-level,One-level lifting elementary cell source resistance is connected on the output end that system power supply lifts elementary cell with one-level,The negative pole of two-stage hoisting electric capacity connects the output end that one-level lifts elementary cell,The control termination one-level of two-stage hoisting elementary cell lifts the output end of elementary cell,The negative pole of three-level lifting electric capacity connects the output end of two-stage hoisting elementary cell,One-level lifts input all ground wires of elementary cell and two-stage hoisting elementary cell,Penetrate and penetrated with the base stage of amplifier tube with another termination of triggering resistance,Penetrate with the colelctor electrode welding system power supply of amplifier tube,Penetrate with the emitter stage of amplifier tube be double amplifying units output;
Diode-type partial pressure unit by Multilevel partial-pressure diode, Multilevel partial-pressure resistance, multi-stage initialization device composition partially partially under diode, partial pressure under aisle resistance, partial pressure over the ground:Every grade of partial pressure diode by two Diode series into, every grade of partial pressure Diode series, its series connection point connects partial pressure aisle resistance over the ground, each series connection point turns into a partial pressure output point, connect a control end for preset device, the input terminating systems power supply of each preset device, output one live wire of display unit of termination of each preset device, the positive pole of first order partial pressure diode is the input of diode-type partial pressure unit, the output of double amplifying units is connect, inclined diode and inclined resistance under partial pressure to ground wire under the series connection partial pressure of afterbody partial pressure diode;
Light display level is made up of multiple display units, and each display unit has an independent live wire, and each display unit is that luminous instruction is constituted by discoloration driver element, three display driver elements, three color-changing light-emitting pipes:
Each display driver element is made up of inclined resistance, commissure electric capacity, isolating diode, source resistance under inclined resistance, input on display driver, input:The control end of each display driver connects inclined resistance with live wire, and lower inclined resistance is connect with ground wire;The input ground wire of each display driver, output end and the live wire of each display driver connect a luminous instruction;One end of first commissure electric capacity connects the first source resistance with live wire, by the output end of the first isolating diode to the first driver, the control end of the driver of another termination second of the first commissure electric capacity, one end of second commissure electric capacity connects second source resistance with live wire, by the output end of the second isolating diode to the second driver, the control end of the driver of another termination the 3rd of the second commissure electric capacity, one end of 3rd commissure electric capacity connects the 3rd source resistance with live wire, connect the positive pole of the 3rd isolating diode, the negative pole of the 3rd isolating diode is connected to the output end of the 3rd driver, the control end of the driver of another termination first of the 3rd commissure electric capacity;
Each discoloration driver element by two discoloration drivers, two discoloration driver guiding electric capacity, two discoloration driver boot-strap resistor, two discoloration driver earth resistance, two discoloration drivers source resistance and differential circuit constitute:The control end of each discoloration driver connects an earth resistance, and each discoloration driving is blurted out
Output end and zero line all connect a source resistance, the input ground wire of each discoloration driver, the positive pole of the 3rd isolating diode of each display unit connects two one end of the guiding electric capacity of discoloration driver, the guiding electric capacity other end of discoloration driver one is two-way, the boot-strap resistor of discoloration driver one to the output end of discoloration driver one is connect all the way, another road connects the steering diode of discoloration driver one to the control end of discoloration driver one, light the anode for indicating in output one display unit of termination of discoloration driver one, the output of discoloration driver two terminates luminous another anode for indicating in this display unit, the output termination of discoloration driver one changes the control end of driver two, the control end of the output termination discoloration driver one of discoloration driver two;
Differential circuit is made up of differential capacitance, differential steering diode, differential discharge resistance:The live wire of one termination display unit of differential capacitance, the other end is two-way, and differential steering diode to the control end of discoloration driver two is connect all the way, and another road connects differential discharge resistance to ground wire;
Voice level is indicated to be constituted with voice protective resistance by multiple voices:The output end of the discoloration driver two of each display unit connects a voice and indicates series connection voice protective resistance to ground wire.
2. atypical multi resonant source formula frequency viewer according to claim 1, it is characterized in that:By common cathode luminous tube, negative electricity resistance is constituted together for each luminous instruction.
3. atypical multi resonant source formula frequency viewer according to claim 1, it is characterized in that:Discoloration driver, display driver, preset device, two elementary cells of switch, complementary two units of vibration, vibration isolated location, two lifting elementary cells all use electronic relay CD4066.
4. atypical multi resonant source formula frequency viewer according to claim 1, it is characterized in that:Power of the power of partial pressure diode more than other diodes in this measure.
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CN203773819U (en) * | 2014-03-28 | 2014-08-13 | 温州市龙湾区永强中学 | Teaching demonstration instrument for demonstrating influence of capacitance and inductance on current |
CN104680899A (en) * | 2013-11-28 | 2015-06-03 | 王珏 | Inductor and capacitor alternating current experiment device |
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CN87214333U (en) * | 1987-10-19 | 1988-07-13 | 郑州市密县第二中学电子仪器厂 | Apparatus for the demonstration of the characteristics of a.c. circuits |
CN201788611U (en) * | 2010-02-04 | 2011-04-06 | 汪建 | Comprehensive electrical LED demonstrator |
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Application publication date: 20170627 |