CN205122052U - Teaching that constitution was put to integrated fortune is with breathing lamp circuit - Google Patents
Teaching that constitution was put to integrated fortune is with breathing lamp circuit Download PDFInfo
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- CN205122052U CN205122052U CN201520880021.7U CN201520880021U CN205122052U CN 205122052 U CN205122052 U CN 205122052U CN 201520880021 U CN201520880021 U CN 201520880021U CN 205122052 U CN205122052 U CN 205122052U
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Abstract
The utility model provides a teaching that constitution was put to integrated fortune is with breathing lamp circuit, in this circuit, it provides two fortune and puts A and B to put U1 by the two fortune of LM358, it constitutes oscillatory circuit module to put A with fortune, it constitutes the constant current source module to put B with fortune, in oscillatory circuit module, the work of electric capacity C1 is in continuous endless charging and discharging state, its both ends voltage presents the alternative process for incessant rising or decline, the voltage of getting on the electric capacity C1 goes to control the constant current source module, can realize concatenating and follow electric capacity C1's voltage variation and realize by bright to dark at the emitting diode of constant current source module output, again by secretly gradually changing to what shine, reach the effect of breathing the lamp. Characteristic and the theory of operation of using this circuit to come the integrated operational circuit of demonstration can make teaching experiment become interesting, attract the student actively to think deeply phenomenon circuit theory of operation behind one's back easily to promote the experiment quality of instruction, let students can master the application that integrated fortune was put better.
Description
Technical field
The utility model relates to the teaching breath light circuit of a kind of integrated transporting discharging composition, belongs to application electric technology field.
Background technology
In Electronic Technology Specialty course teaching, common teaching method integrated operational amplifier circuit is used as forward or anti-phase proportional amplifier and voltage comparator, these confirmatory experimental results generally all need to observe with instruments such as oscillographs, because its single replication experiment circuit lacks interesting, easily cause students ' interest of study not enough, affect teaching efficiency.Therefore, be necessary that designing some has circuit that is interesting and sight concurrently, by be designed to by integrated transporting discharging can the breath light circuit of ocular demonstration, confirmatory experiment dry as dust is originally made to become interesting, easy attraction student actively thinks deeply phenomenon circuit working principle behind, thus Promoting Experimental Teaching quality, allow students can grasp the application of integrated transporting discharging better.
Utility model content
The purpose of this utility model is to provide the teaching breath light circuit of a kind of integrated transporting discharging composition, and the state that the light emitting diode of this circuit can imitate human body respiration realizes the light on and off of gradual change type, demonstrates characteristic and the principle of work of integrated operational amplifier circuit with this.
The concrete technical scheme that the utility model is taked is as follows:
A kind of teaching breath light circuit of integrated transporting discharging composition, it is characterized in that: described circuit comprises LM358 double operational U1, resistance R1 ~ R10, electric capacity C1, NPN triode Q1, light emitting diode D1 and switch S 1, wherein access 8 pin of double operational U1, one end of resistance R1 and the positive pole of light emitting diode D1 after+5V power series switch S 1, one end of other end contact resistance R2 and R3 of resistance R1, the other end ground connection of resistance R2,3 pin of another termination double operational U1 of resistance R3; 1 pin of double operational U1 and the indirect resistance R4 of 3 pin, the indirect resistance R5 of 1 pin and 2 pin, the indirect resistance R6 of 2 pin and 5 pin, ground connection after 2 pin serial capacitance C1, ground connection after 5 pin series resistor R7,4 pin ground connection, the emitter of connecting triode Q1 and one end of resistance R10 after 6 pin series resistor R9, the base stage of triode Q1 is connect, the negative pole of the collector sending and receiving optical diode D1 of triode Q1, the other end ground connection of resistance R10 after 7 pin series resistor R8.
The beneficial effects of the utility model are: the teaching breath light circuit of this integrated transporting discharging composition provides two amplifiers by LM358 double operational, by one of them amplifier composition oscillatory circuit module, by another amplifier composition constant current source module, by oscillatory circuit module, constant current source module is controlled, the light emitting diode being serially connected in constant current source module output terminal is realized by bright to dark, again by secretly gradually changing to bright, be similar to the breathing state of human body.Characteristic and the principle of work of integrated operational amplifier circuit is demonstrated with this circuit, education experiment can be made to become interesting, easy attraction student actively thinks deeply phenomenon circuit working principle behind, thus Promoting Experimental Teaching quality, allow students can grasp the application of integrated transporting discharging better.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the teaching breath light circuit of this integrated transporting discharging composition.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, the teaching breath light circuit of this integrated transporting discharging composition comprises LM358 double operational U1, resistance R1 ~ R10, electric capacity C1, NPN triode Q1, light emitting diode D1 and switch S 1, wherein access 8 pin of double operational U1, one end of resistance R1 and the positive pole of light emitting diode D1 after+5V power series switch S 1, one end of other end contact resistance R2 and R3 of resistance R1, the other end ground connection of resistance R2,3 pin of another termination double operational U1 of resistance R3; 1 pin of double operational U1 and the indirect resistance R4 of 3 pin, the indirect resistance R5 of 1 pin and 2 pin, the indirect resistance R6 of 2 pin and 5 pin, ground connection after 2 pin serial capacitance C1, ground connection after 5 pin series resistor R7,4 pin ground connection, the emitter of connecting triode Q1 and one end of resistance R10 after 6 pin series resistor R9, the base stage of triode Q1 is connect, the negative pole of the collector sending and receiving optical diode D1 of triode Q1, the other end ground connection of resistance R10 after 7 pin series resistor R8.
In this circuit, two amplifier A and B are provided by LM358 double operational U1, oscillatory circuit module is formed with amplifier A, constant current source module is formed with amplifier B, in oscillatory circuit module, electric capacity C1 is operated in the charging and discharging state of constantly circulation, its both end voltage is rendered as the uninterrupted alternation procedure rising or decline, the power taking voltage held on C1 goes to control constant current source module, the light emitting diode that can realize being serially connected in constant current source module output terminal is followed the change in voltage on electric capacity C1 and realizes by bright to dark, again by secretly gradually changing to bright, reach the effect of breath light.
Claims (1)
1. the teaching breath light circuit of an integrated transporting discharging composition, it is characterized in that: described circuit comprises LM358 double operational U1, resistance R1 ~ R10, electric capacity C1, NPN triode Q1, light emitting diode D1 and switch S 1, wherein access 8 pin of double operational U1, one end of resistance R1 and the positive pole of light emitting diode D1 after+5V power series switch S 1, one end of other end contact resistance R2 and R3 of resistance R1, the other end ground connection of resistance R2,3 pin of another termination double operational U1 of resistance R3; 1 pin of double operational U1 and the indirect resistance R4 of 3 pin, the indirect resistance R5 of 1 pin and 2 pin, the indirect resistance R6 of 2 pin and 5 pin, ground connection after 2 pin serial capacitance C1, ground connection after 5 pin series resistor R7,4 pin ground connection, the emitter of connecting triode Q1 and one end of resistance R10 after 6 pin series resistor R9, the base stage of triode Q1 is connect, the negative pole of the collector sending and receiving optical diode D1 of triode Q1, the other end ground connection of resistance R10 after 7 pin series resistor R8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520880021.7U CN205122052U (en) | 2015-11-06 | 2015-11-06 | Teaching that constitution was put to integrated fortune is with breathing lamp circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520880021.7U CN205122052U (en) | 2015-11-06 | 2015-11-06 | Teaching that constitution was put to integrated fortune is with breathing lamp circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205122052U true CN205122052U (en) | 2016-03-30 |
Family
ID=55577638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520880021.7U Withdrawn - After Issue CN205122052U (en) | 2015-11-06 | 2015-11-06 | Teaching that constitution was put to integrated fortune is with breathing lamp circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205122052U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261267A (en) * | 2015-11-06 | 2016-01-20 | 广西职业技术学院 | Breathing light circuit for teaching with integrated operational amplifier assembly |
-
2015
- 2015-11-06 CN CN201520880021.7U patent/CN205122052U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261267A (en) * | 2015-11-06 | 2016-01-20 | 广西职业技术学院 | Breathing light circuit for teaching with integrated operational amplifier assembly |
| CN105261267B (en) * | 2015-11-06 | 2017-12-01 | 广西职业技术学院 | A kind of teaching breathing circuit for lamp of integrated transporting discharging composition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160330 Effective date of abandoning: 20171201 |