CN208490010U - A kind of light-operated LED running lamp for integrated operational amplifier circuit teaching - Google Patents
A kind of light-operated LED running lamp for integrated operational amplifier circuit teaching Download PDFInfo
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- CN208490010U CN208490010U CN201820688973.2U CN201820688973U CN208490010U CN 208490010 U CN208490010 U CN 208490010U CN 201820688973 U CN201820688973 U CN 201820688973U CN 208490010 U CN208490010 U CN 208490010U
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Abstract
The utility model provides a kind of light-operated LED running lamp for integrated operational amplifier circuit teaching, belongs to electronic technology field.The oscillator of integrated operational amplifier circuit composition is the key points and difficulties in electronics curriculum, and the utility model designs a kind of light-operated LED running lamp using integrated operational amplifier circuit and 4017 integrated circuit combinations, and the flowing water speed of LED light is illuminated by the light strength control.This utility model is applied to the experimental teaching of the integrated operational amplifier circuit of Electron Technique Course, so that originally uninteresting replication experiment is become vivid and interesting, the interest of experimental teaching can be played an active part in mobilizing students, thus Promoting Experimental Teaching effect.
Description
Technical field
The utility model is a kind of light-operated LED running lamp for integrated operational amplifier circuit teaching, belongs to electronic technology field.
Background technique
In Electron Technique Course, the oscillator of integrated operational amplifier circuit composition is the key points and difficulties in teaching, in order to test
Theory teaching is demonstrate,proved, school is mostly independent to be arranged to carry out replication experiment, and mainly pass through oscillograph observes waveform to experimental result
Frequency and amplitude, uninteresting experiment content is difficult to attract the learning interest of student, and experiment teaching effect is unsatisfactory.Therefore,
It is necessary to design some experiment contents for having both interest or interactivity, for example, by integrated operational amplifier circuit and 4017 integrated circuits
A kind of light-operated LED running lamp of Combination Design, the flowing water speed of LED light are illuminated by the light strength control, make originally uninteresting confirmatory reality
Testing becomes vivid and interesting, and the interest of experimental teaching can be played an active part in mobilizing students, thus Promoting Experimental Teaching effect.
Utility model content
The purpose of the utility model is to provide a kind of light-operated LED running lamps for integrated operational amplifier circuit teaching, realize light
It according to the function of strength control LED light flowing water speed, is tested by interactivity, the interest of experimental teaching can be participated in mobilizing students,
To promote teaching effect.
The specific technical solution that the utility model is taken is as follows:
A kind of light-operated LED running lamp for integrated operational amplifier circuit teaching, it is characterized in that: the light-operated LED running lamp
Circuit include integrated transporting discharging U1, integrated circuit U2, resistance R1~R6, capacitor C1, diode D1, Light-emitting diode LED 1~
LED10, triode Q1 and photo resistance LDR1, wherein 8 feet of integrated transporting discharging U1 meet+5V, and 4 feet meet -5V, 3 foot connecting resistance R1's
One end of one end and resistance R2,2 feet connect one end of the anode of capacitor C1, one end of resistance R3 and photosensitive circuit LDR1, and 1 foot connects electricity
Hinder the other end of R2, the other end of resistance R3, one end of resistance R4 and photosensitive circuit LDR1 the other end, the other end of resistance R1
It is grounded with the cathode of capacitor C1；The other end of the base stage connecting resistance R4 of triode Q1 and the cathode of diode D1, emitter and two
The plus earth of pole pipe D1, one end of collector connecting resistance R5 and 14 feet of integrated circuit U 2, another termination+5V of resistance R5；
13 feet of integrated circuit U2 and 15 feet ground connection, the anode of 3 foot sending and receiving optical diode LED1,2 foot sending and receiving optical diode LED2 are just
Pole, the anode of 4 foot sending and receiving optical diode LED3, the anode of 7 foot sending and receiving optical diode LED4,10 foot sending and receiving optical diode LED5's
Anode, the anode of 1 foot sending and receiving optical diode LED6, the anode of 5 foot sending and receiving optical diode LED7,6 foot sending and receiving optical diode LED8
Anode, the anode of 9 foot sending and receiving optical diode LED9, the anode of 11 foot sending and receiving optical diode LED10, Light-emitting diode LED 1~
One end of the cathode connecting resistance R6 of LED10, the other end ground connection of resistance R6；The integrated transporting discharging U1 uses LM358；It is described integrated
Circuit U 2 uses CD4017.
The utility model has the following beneficial effects: the utility model provide it is a kind of for integrated operational amplifier circuit teaching it is light-operated
LED running lamp is applied to the experimental teaching of the integrated operational amplifier circuit of Electron Technique Course, makes experiment originally dry as dust
Become more interesting, the interest of experimental teaching can be participated in mobilizing students, to promote teaching effect.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model.
Specific embodiment
The utility model is described further with reference to the accompanying drawing.
As shown in Figure 1, a kind of light-operated LED running lamp for integrated operational amplifier circuit teaching, the light-operated LED running lamp
Circuit include integrated transporting discharging U1, integrated circuit U2, resistance R1~R6, capacitor C1, diode D1, Light-emitting diode LED 1~
LED10, triode Q1 and photo resistance LDR1, wherein 8 feet of integrated transporting discharging U1 meet+5V, and 4 feet meet -5V, 3 foot connecting resistance R1's
One end of one end and resistance R2,2 feet connect one end of the anode of capacitor C1, one end of resistance R3 and photosensitive circuit LDR1, and 1 foot connects electricity
Hinder the other end of R2, the other end of resistance R3, one end of resistance R4 and photosensitive circuit LDR1 the other end, the other end of resistance R1
It is grounded with the cathode of capacitor C1；The other end of the base stage connecting resistance R4 of triode Q1 and the cathode of diode D1, emitter and two
The plus earth of pole pipe D1, one end of collector connecting resistance R5 and 14 feet of integrated circuit U 2, another termination+5V of resistance R5；
13 feet of integrated circuit U2 and 15 feet ground connection, the anode of 3 foot sending and receiving optical diode LED1,2 foot sending and receiving optical diode LED2 are just
Pole, the anode of 4 foot sending and receiving optical diode LED3, the anode of 7 foot sending and receiving optical diode LED4,10 foot sending and receiving optical diode LED5's
Anode, the anode of 1 foot sending and receiving optical diode LED6, the anode of 5 foot sending and receiving optical diode LED7,6 foot sending and receiving optical diode LED8
Anode, the anode of 9 foot sending and receiving optical diode LED9, the anode of 11 foot sending and receiving optical diode LED10, Light-emitting diode LED 1~
One end of the cathode connecting resistance R6 of LED10, the other end ground connection of resistance R6.
In the circuit of this light-operated LED running lamp, by integrated transporting discharging U1, resistance R1~R3, capacitor C1 and photo resistance
LDR1 forms a square-wave oscillator, and the oscillation amplitude of output waveform is about ± 3.5V, frequency of oscillation depend mainly on capacitor C1,
The parameter of resistance R3 and photo resistance LDR1；One level-conversion circuit is formed by triode 01, diode D1 resistance R4 and R5,
+ the 3.5V that square-wave oscillator exports is converted into 0V, -3.5V is converted to+5V；Square-wave oscillator output pulse signal, through level
Translation circuit carries out level conversion, send the 10 paths of LEDs flowing water circuit for lamp constituted to integrated circuit U2；When intensity of illumination dies down,
The resistance value of photo resistance LDR1 becomes larger, and the resistance value after resistance R3 is in parallel with photo resistance LDR1, which follows, to become larger, the charge and discharge of capacitor C1
Electrical time constant is elongated, and the frequency of oscillation of the square-wave oscillator of integrated transporting discharging U1 composition reduces, and carries out level through triode Q1 and turns
It is sent after changing to 14 feet of integrated circuit U2,3,2,4,7,10,1,5,6,9,11 feet of integrated circuit U2 are sequentially output high level
Time interval is elongated, and 1~LED10 of Light-emitting diode LED, which is successively lighted, to slow；When intensity of illumination change is strong, square wave oscillation
The frequency of oscillation of device increases, and the time interval that integrated circuit U2 is sequentially output high level, which becomes, to be shortened, and Light-emitting diode LED 1~
LED10 successively lights speed and becomes faster, to realize the function of intensity of illumination control LED light flowing water speed.
Claims (3)
1. a kind of light-operated LED running lamp for integrated operational amplifier circuit teaching, it is characterized in that: the electricity of the light-operated LED running lamp
Road include integrated transporting discharging U1, integrated circuit U2, resistance R1~R6, capacitor C1, diode D1,1~LED10 of Light-emitting diode LED,
Triode Q1 and photo resistance LDR1, wherein 8 feet of integrated transporting discharging U1 meet+5V, and 4 feet meet -5V, one end of 3 foot connecting resistance R1 and
One end of resistance R2,2 feet connect one end of the anode of capacitor C1, one end of resistance R3 and photosensitive circuit LDR1,1 foot connecting resistance R2's
The other end, the other end of resistance R3, one end of resistance R4 and photosensitive circuit LDR1 the other end, the other end and capacitor of resistance R1
The cathode of C1 is grounded；The other end of the base stage connecting resistance R4 of triode Q1 and the cathode of diode D1, emitter and diode D1
Plus earth, one end of collector connecting resistance R5 and 14 feet of integrated circuit U 2, another termination+5V of resistance R5；Integrated electricity
13 feet of road U2 and 15 feet ground connection, the anode of 3 foot sending and receiving optical diode LED1, the anode of 2 foot sending and receiving optical diode LED2,4 feet
The anode of sending and receiving optical diode LED3, the anode of 7 foot sending and receiving optical diode LED4, the anode of 10 foot sending and receiving optical diode LED5,1
The anode of foot sending and receiving optical diode LED6, the anode of 5 foot sending and receiving optical diode LED7, the anode of 6 foot sending and receiving optical diode LED8,
The anode of 9 foot sending and receiving optical diode LED9, the anode of 11 foot sending and receiving optical diode LED10,1~LED10's of Light-emitting diode LED
One end of cathode connecting resistance R6, the other end ground connection of resistance R6.
2. a kind of light-operated LED running lamp for integrated operational amplifier circuit teaching according to claim 1, it is characterized in that: institute
Integrated transporting discharging U1 is stated using LM358.
3. a kind of light-operated LED running lamp for integrated operational amplifier circuit teaching according to claim 1, it is characterized in that: institute
Integrated circuit U2 is stated using CD4017.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820688973.2U CN208490010U (en) | 2018-05-09 | 2018-05-09 | A kind of light-operated LED running lamp for integrated operational amplifier circuit teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820688973.2U CN208490010U (en) | 2018-05-09 | 2018-05-09 | A kind of light-operated LED running lamp for integrated operational amplifier circuit teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208490010U true CN208490010U (en) | 2019-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820688973.2U Expired - Fee Related CN208490010U (en) | 2018-05-09 | 2018-05-09 | A kind of light-operated LED running lamp for integrated operational amplifier circuit teaching |
Country Status (1)
| Country | Link |
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| CN (1) | CN208490010U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110888009A (en) * | 2019-11-28 | 2020-03-17 | 四川泛华航空仪表电器有限公司 | Device and method for monitoring integrity of wire harness shielding layer |
-
2018
- 2018-05-09 CN CN201820688973.2U patent/CN208490010U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110888009A (en) * | 2019-11-28 | 2020-03-17 | 四川泛华航空仪表电器有限公司 | Device and method for monitoring integrity of wire harness shielding layer |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190212 Termination date: 20210509 |
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| CF01 | Termination of patent right due to non-payment of annual fee |