CN207969028U - A kind of sound-light controlled LED lamp being applied to 555 IC design educations - Google Patents
A kind of sound-light controlled LED lamp being applied to 555 IC design educations Download PDFInfo
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- CN207969028U CN207969028U CN201820373953.6U CN201820373953U CN207969028U CN 207969028 U CN207969028 U CN 207969028U CN 201820373953 U CN201820373953 U CN 201820373953U CN 207969028 U CN207969028 U CN 207969028U
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Abstract
The utility model provides a kind of sound-light controlled LED lamp being applied to 555 IC design educations, the LED light detects the environment sound by microphone in body, through voltage amplification and multiplication of voltage detection, trigger the monostable circuit of one 555 integrated circuits composition, environment light detection is realized by photo resistance and another 555 integrated circuit again, LED light is driven by the output of two piece of 555 integrated circuit jointly, realizes the controlled by sound and light of LED light.Experimental teaching by this sound-light controlled LED for 555 integrated circuits of Electron Technique Course, energy mobilizing students participate in the enthusiasm of experimental teaching, to improve teaching effect.
Description
Technical field
The utility model is related to a kind of sound-light controlled LED lamps, are applied to the religion of 555 integrated circuit contents of Electron Technique Course
It learns, belongs to electronic technology field.
Background technology
555 integrated circuits are one of the focal points of common integrated circuit and Electron Technique Course.But generally about
The experimental teaching of 555 integrated circuit contents is mostly the replication experiment for the element circuit for carrying out 555 integrated circuits composition, experiment
Content is more dull and uninteresting, and difficult mobilizing students participate in the enthusiasm of experiment, and experiment teaching effect is not good enough.
Utility model content
To solve the above-mentioned problems, the utility model provides a kind of sound-light controlled LED being applied to 555 IC design educations
Lamp is applied to the experimental teaching of 555 integrated circuit contents of Electron Technique Course.Since sound-light control streetlamp is generally answered
With, student knows quite well the function and control logic of sound-light control streetlamp, more curious to its operation principle, therefore, this practicality
New Energy evokes the enthusiasm that student participates in experimental study, to improve the teaching effect of 555 integrated circuit contents.
The specific technical solution that the utility model is taken is as follows：
A kind of sound-light controlled LED lamp being applied to 555 IC design educations, including 555 integrated circuit U1 and U2, microphone in body
MIC1, triode Q1, diode D1 and D2, Light-emitting diode LED 1, resistance R1~R6, capacitance C1~C4, photo resistance LR1 and
Adjustable resistance RV1, wherein the cathode ground connection of the MIC1 of microphone in body, one end of one end and capacitance C1 of positive connecting resistance R1, resistance
Another termination+5V power supplys of R1；The base stage of triode Q1 connects one end of the other end and resistance R3 of capacitance C1, and emitter is grounded,
The other end of collector connecting resistance R3, one end and capacitance C2 of resistance R2 one end, another termination+5V power supplys of resistance R2；Electricity
Hold the anode of the cathode and diode D2 of another terminating diode D1 of C2, the cathode of diode D2 connects one end of capacitance C3, electricity
Hinder R4 one end and 555 integrated circuit U2 6 feet, the anode of diode D1, the other end and resistance R4 of capacitance C3 the other end
Ground connection；1 foot of 555 integrated circuit U1 is grounded, and 4 feet and 8 feet connect+5V power supplys, and one end of 3 foot connecting resistance R6,2 feet and 6 feet connect light
One end of quick resistance LR1, a fixing end and adjustable resistance RV1 of adjustable resistance RV1 mobile terminal, photo resistance LR1's is another
Termination+5V power supplys, another fixing end ground connection of adjustable resistance RV1；1 foot of 555 integrated circuit U2 is grounded, and 4 feet and 8 feet meet+5V
Power supply, one end of one end and capacitance C4 of 2 foot connecting resistance R5, the other end of 3 foot connecting resistance R5 and bearing for Light-emitting diode LED 1
Pole, the other end of the positive connecting resistance R6 of Light-emitting diode LED 1, the other end ground connection of capacitance C4.
The beneficial effects of the utility model are：The utility model provides a kind of sound being applied to 555 IC design educations
Light-operated LED (liquid crystal diode) lamp is applied to the experimental teaching of 555 integrated circuit contents of Electron Technique Course, can evoke student's participation experiment and grind
The enthusiasm studied carefully, to improve the teaching effect of 555 integrated circuit contents.
Description of the drawings
Fig. 1 is the circuit diagram of the utility model.
Specific implementation mode
The utility model is described further below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of sound-light controlled LED lamp being applied to 555 IC design educations, which includes 555 integrated circuits
U1 and U2, the MIC1 of microphone in body, triode Q1, diode D1 and D2, Light-emitting diode LED 1, resistance R1~R6, capacitance C1~
C4, photo resistance LR1 and adjustable resistance RV1, wherein the cathode ground connection of the MIC1 of microphone in body, one end of positive connecting resistance R1 and electricity
Hold one end of C1, another termination+5V power supplys of resistance R1；The base stage of triode Q1 connect capacitance C1 the other end and resistance R3 one
End, emitter ground connection, the other end of collector connecting resistance R3, one end and capacitance C2 of resistance R2 one end, resistance R2's is another
Termination+5V power supplys；The anode of the cathode and diode D2 of another terminating diode D1 of capacitance C2, the cathode of diode D2 connect electricity
Hold 6 feet of one end of C3, one end and 555 integrated circuit U2 of resistance R4, the anode of diode D1, the other end and electricity of capacitance C3
Hinder the other end ground connection of R4；1 foot of 555 integrated circuit U1 is grounded, and 4 feet and 8 feet connect+5V power supplys, one end of 3 foot connecting resistance R6, and 2
Foot and 6 feet connect one end of photo resistance LR1, adjustable resistance RV1 a fixing end and adjustable resistance RV1 mobile terminal, photosensitive electricity
Hinder another termination+5V power supplys of LR1, another fixing end ground connection of adjustable resistance RV1；1 foot of 555 integrated circuit U2 is grounded, 4 feet
+ 5V power supplys, one end of one end and capacitance C4 of 2 foot connecting resistance R5, the other end and light-emitting diodes of 3 foot connecting resistance R5 are connect with 8 feet
The cathode of pipe LED1, the other end of the positive connecting resistance R6 of Light-emitting diode LED 1, the other end ground connection of capacitance C4.
The MIC1 of microphone in body is responsible for inspection and picks up the sound that environment is sent out, and triode Q1 is responsible for completing voltage amplification, capacitance C2, C3
Multiplication of voltage detection is formed with diode D1, D2, the AC audio voltage transformation that triode Q1 is sent out is at DC voltage, this direct current
Pressure is sent as acoustic control trigger signal to 6 feet of 555 integrated circuit U2.
555 integrated circuit U1, photo resistance LR1 and adjustable resistance RV1 constitute ambient light detection circuit, daytime, light intensity,
The resistance value of resistance LR1 becomes smaller, and 2 feet of 555 integrated circuit U1 and the voltage of 6 feet are more than 2/3rds of+5V voltages, and 555 is integrated
3 feet of circuit U 1 export low level；At night, brightness, resistance LR1 resistance values become larger, the voltage of 2 feet and 6 feet of 555 integrated circuit U1
3 feet of the one third of low mistake+5V voltages, 555 integrated circuit U1 export high level.
555 integrated circuit U2, resistance R5 and capacitance C4 constitute the monostable flipflop that stable state is high level, usually, 555
3 feet of integrated circuit U2 export high level, and capacitance C4 is fully charged, and after its 6 foot obtains high level, 3 foot output switching activities are low electricity
Flat, capacitance C4 starts to discharge, and when one third of the capacitance C4 voltages down to+5V, 3 foot output switching activities return high level, open simultaneously
Begin to charge to capacitance C4.
Daytime, since 3 feet of 555 integrated circuit U1 export low level, Light-emitting diode LED 1 does not work.At night,
3 feet of 555 integrated circuit U1 export high level, if but environment silent or the sound it is weaker, the 6 foot voltages of 555 integrated circuit U2
Relatively low, 555 integrated circuit U2 are in stable state, and 3 feet export high level, and Light-emitting diode LED 1 does not work yet；If but environment is sound
It ringing, and amplitude is enough strong, 6 feet of 555 integrated circuit U2 obtain high voltage, and 555 integrated circuit U2 of triggering are turned to temporary stable state, and 3
Foot exports low level, and Light-emitting diode LED 1 is bright, and after spending the several seconds, 555 integrated circuit U2 are flipped back to stable state, and 3 feet restore high
Level, 1 automatic distinguishing of Light-emitting diode LED.
Claims (1)
1. a kind of sound-light controlled LED lamp being applied to 555 IC design educations, it is characterized in that：The LED light includes 555 integrated circuits
U1 and U2, the MIC1 of microphone in body, triode Q1, diode D1 and D2, Light-emitting diode LED 1, resistance R1~R6, capacitance C1~
C4, photo resistance LR1 and adjustable resistance RV1, wherein the cathode ground connection of the MIC1 of microphone in body, one end of positive connecting resistance R1 and electricity
Hold one end of C1, another termination+5V power supplys of resistance R1；The base stage of triode Q1 connect capacitance C1 the other end and resistance R3 one
End, emitter ground connection, the other end of collector connecting resistance R3, one end and capacitance C2 of resistance R2 one end, resistance R2's is another
Termination+5V power supplys；The anode of the cathode and diode D2 of another terminating diode D1 of capacitance C2, the cathode of diode D2 connect electricity
Hold 6 feet of one end of C3, one end and 555 integrated circuit U2 of resistance R4, the anode of diode D1, the other end and electricity of capacitance C3
Hinder the other end ground connection of R4；1 foot of 555 integrated circuit U1 is grounded, and 4 feet and 8 feet connect+5V power supplys, one end of 3 foot connecting resistance R6, and 2
Foot and 6 feet connect one end of photo resistance LR1, adjustable resistance RV1 a fixing end and adjustable resistance RV1 mobile terminal, photosensitive electricity
Hinder another termination+5V power supplys of LR1, another fixing end ground connection of adjustable resistance RV1；1 foot of 555 integrated circuit U2 is grounded, 4 feet
+ 5V power supplys, one end of one end and capacitance C4 of 2 foot connecting resistance R5, the other end and light-emitting diodes of 3 foot connecting resistance R5 are connect with 8 feet
The cathode of pipe LED1, the other end of the positive connecting resistance R6 of Light-emitting diode LED 1, the other end ground connection of capacitance C4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820373953.6U CN207969028U (en) | 2018-03-19 | 2018-03-19 | A kind of sound-light controlled LED lamp being applied to 555 IC design educations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820373953.6U CN207969028U (en) | 2018-03-19 | 2018-03-19 | A kind of sound-light controlled LED lamp being applied to 555 IC design educations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207969028U true CN207969028U (en) | 2018-10-12 |
Family
ID=63725191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820373953.6U Expired - Fee Related CN207969028U (en) | 2018-03-19 | 2018-03-19 | A kind of sound-light controlled LED lamp being applied to 555 IC design educations |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207969028U (en) |
-
2018
- 2018-03-19 CN CN201820373953.6U patent/CN207969028U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181012 Termination date: 20200319 |
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| CF01 | Termination of patent right due to non-payment of annual fee |