CN205122049U - Flash light circuit of 555 integrated circuit teaching usefulness - Google Patents
Flash light circuit of 555 integrated circuit teaching usefulness Download PDFInfo
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- CN205122049U CN205122049U CN201520837348.6U CN201520837348U CN205122049U CN 205122049 U CN205122049 U CN 205122049U CN 201520837348 U CN201520837348 U CN 201520837348U CN 205122049 U CN205122049 U CN 205122049U
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- integrated circuit
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- light emitting
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Abstract
The utility model provides a flash light circuit of 555 integrated circuit teaching usefulness, an oscillation circuit is constituteed by 555 integrated circuit to this circuit, by emitting diode D1, D2 constitutes the flash of light circuit, 555 integrated circuit's output loading is at two emitting diode D1, between the D2, when the 555 integrated circuit output low level, emitting diode D1 lights, emitting diode D2 extinguishes, when the 555 integrated circuit output high level, emitting diode D1 extinguishes, emitting diode D2 lights, form the effect of flash of light in turn from this. Be used for the oscillation circuit's that the demonstration comprises 555 integrated circuit output characteristics with this circuit, make originally that boring's 555 integrated circuit verifies that the experiment becomes more interesting, improved the student and participated in the interest of testing to promote the experiment quality of instruction, let students can understand and master 555 integrated circuit's application better.
Description
Technical field
The utility model relates to a kind of flash lamp circuit of 555 IC design educations, belongs to application electric technology field.
Background technology
In Electronic Technology Specialty course teaching, an independently oscillatory circuit experiment is done about the teaching method that 555 integrated circuit are common, and experimental result need be observed with oscillograph, because its single oscillation functions circuit lacks interesting, easily cause students ' interest of study not enough, affect teaching efficiency.Therefore, be necessary to design and there is teaching consuming energy road that is interesting and sight, can the flash lamp circuit of ocular demonstration by 555 integrated circuit (IC) design are become, 555 integrated circuit verification experiments originally dry as dust are made to become more interesting, improve the interest of students' participation experiment, thus Promoting Experimental Teaching quality, allow students can understand and grasp the application of 555 integrated circuit better.
Utility model content
The purpose of this utility model is to provide a kind of flash lamp circuit of 555 IC design educations, for demonstrating the oscillatory circuit of 555 integrated circuit compositions.
The concrete technical scheme that the utility model is taked is as follows:
A kind of flash lamp circuit of 555 IC design educations, it is characterized in that: this circuit comprises 555 integrated circuit U1, resistance R1, R2 and R3, electric capacity C1 and C2, light emitting diode D1 and D2, switch S 1, wherein point two-way after+5V power series switch S 1, one tunnel connects 8 pin of 555 integrated circuit U1, the positive pole of connecting luminous diode D1 after the series resistor R1 of another road, the positive pole of the negative pole connecting luminous diode D2 of light emitting diode D1, ground connection after the negative pole series resistor R2 of light emitting diode D2; 4 pin of 555 integrated circuit U1 are connected with 8 pin, ground connection after 5 pin serial capacitance C1, and 2 pin are connected with 6 pin, 1 pin ground connection, 6 pin connect the positive pole of electric capacity C2, are connected with resistance R3 between 3 pin and 6 pin, 3 pin are also connected to the positive pole of light emitting diode D2, the minus earth of electric capacity C2.
The beneficial effects of the utility model are: the output terminal of the oscillatory circuit that the flash lamp circuit of this 555 IC design educations be made up of 555 integrated circuit controls the alternately luminescence of two light emitting diodes, for demonstrating the output characteristic of the oscillatory circuit be made up of 555 integrated circuit, 555 integrated circuit verification experiments originally dry as dust are made to become more interesting, improve the interest of students' participation experiment, thus Promoting Experimental Teaching quality, allow students can understand and grasp the application of 555 integrated circuit better.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the flash lamp circuit of these 555 IC design educations.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, the flash lamp circuit of these 555 IC design educations comprises 555 integrated circuit U1, resistance R1, R2 and R3, electric capacity C1 and C2, light emitting diode D1 and D2, switch S 1, wherein point two-way after+5V power series switch S 1, one tunnel connects 8 pin of 555 integrated circuit U1, the positive pole of connecting luminous diode D1 after the series resistor R1 of another road, the positive pole of the negative pole connecting luminous diode D2 of light emitting diode D1, ground connection after the negative pole series resistor R2 of light emitting diode D2; 4 pin of 555 integrated circuit U1 are connected with 8 pin, ground connection after 5 pin serial capacitance C1, and 2 pin are connected with 6 pin, 1 pin ground connection, 6 pin connect the positive pole of electric capacity C2, are connected with resistance R3 between 3 pin and 6 pin, 3 pin are also connected to the positive pole of light emitting diode D2, the minus earth of electric capacity C2.
This circuit forms a direct feedback-type oscillatory circuit by 555 integrated circuit U1, resistance R3, electric capacity C1 and C2,3 pin of 555 integrated circuit U1 export the wave of oscillation of low and high level composition, resistance R1, R2 and light emitting diode D1, D2 then form flasher circuit, and the 3 pin output terminals of 555 integrated circuit U1 are carried between two light emitting diode D1, D2.When the 3 pin output low level of 555 integrated circuit U1, light emitting diode D1 lights, and light emitting diode D2 extinguishes, and when 3 pin of 555 integrated circuit U1 export high level, light emitting diode D1 extinguishes, and light emitting diode D2 lights, and forms the effect of alternating flashes thus.
Claims (1)
1. the flash lamp circuit of an IC design education, it is characterized in that: this circuit comprises 555 integrated circuit U1, resistance R1, resistance R2 and resistance R3, electric capacity C1 and electric capacity C2, light emitting diode D1 and light emitting diode D2, switch S 1, wherein point two-way after+5V power series switch S 1, one tunnel connects 8 pin of 555 integrated circuit U1, the positive pole of connecting luminous diode D1 after the series resistor R1 of another road, the positive pole of the negative pole connecting luminous diode D2 of light emitting diode D1, ground connection after the negative pole series resistor R2 of light emitting diode D2; 4 pin of 555 integrated circuit U1 are connected with 8 pin, ground connection after 5 pin serial capacitance C1, and 2 pin are connected with 6 pin, 1 pin ground connection, 6 pin connect the positive pole of electric capacity C2, are connected with resistance R3 between 3 pin and 6 pin, 3 pin are also connected to the positive pole of light emitting diode D2, the minus earth of electric capacity C2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520837348.6U CN205122049U (en) | 2015-10-27 | 2015-10-27 | Flash light circuit of 555 integrated circuit teaching usefulness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520837348.6U CN205122049U (en) | 2015-10-27 | 2015-10-27 | Flash light circuit of 555 integrated circuit teaching usefulness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205122049U true CN205122049U (en) | 2016-03-30 |
Family
ID=55577635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520837348.6U Expired - Fee Related CN205122049U (en) | 2015-10-27 | 2015-10-27 | Flash light circuit of 555 integrated circuit teaching usefulness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205122049U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206149A (en) * | 2015-10-27 | 2015-12-30 | 广西职业技术学院 | Flash lamp circuit for 555 integrated circuit teaching |
-
2015
- 2015-10-27 CN CN201520837348.6U patent/CN205122049U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206149A (en) * | 2015-10-27 | 2015-12-30 | 广西职业技术学院 | Flash lamp circuit for 555 integrated circuit teaching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20191027 |