CN202008767U - Automatic control demonstrating instrument with diode - Google Patents
Automatic control demonstrating instrument with diode Download PDFInfo
- Publication number
- CN202008767U CN202008767U CN2010206673708U CN201020667370U CN202008767U CN 202008767 U CN202008767 U CN 202008767U CN 2010206673708 U CN2010206673708 U CN 2010206673708U CN 201020667370 U CN201020667370 U CN 201020667370U CN 202008767 U CN202008767 U CN 202008767U
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- triode
- integrated circuit
- diode
- pin
- resistance
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Abstract
The utility model relates to an automatic control demonstrating instrument with a diode, belonging to the technical field of demonstrating instruments. A circuit consists of a resistor, an ampere meter, the diode, a triode, a voltage meter, a capacitor, a 555 integrated circuit and a loudspeaker. The automatic control demonstrating instrument with the diode is characterized in that a variable resistor, a second resistor and the ampere meter are connected in series; the diode is connected at the two ends of a jack; the emitting electrode of the triode is connected with the negative electrode of a direct-current power supply; the collector electrode of the triode is connected with four pins of the 555 integrated circuit; the base electrode of the triode is connected with the second resistor; the voltage meter is connected between the base electrode of the triode and the emitting electrode of the triode; and the ampere meter, the voltage meter, the jack, the variable resistor and a switch are arranged on the front surface of an showing plate. With the adoption of the technical scheme, the automatic control demonstrating instrument with the diode has the advantages and the positive effects of strong intuition and good economy and practicality.
Description
Technical field
The utility model relates to a kind of diode and controls demonstrator automatically, belongs to the demonstration instrument technical field.
Background technology
In the teaching of electronic circuit, when lecturing the automatic control action of diode (photodiode, temp .-sensitive diodes, gas sensing diode, magnetodiode, pressure-sensitive diode) in circuit, no instrument is demonstrated.
Summary of the invention
The purpose of this utility model provides a kind of diode and controls demonstrator automatically, can demonstrate the automatic control action of diode (photodiode, temp .-sensitive diodes, gas sensing diode, magnetodiode, pressure-sensitive diode) in circuit.
The purpose of this utility model is achieved in that circuit is by resistance, reometer, diode, triode, voltage table, electric capacity, 555 integrated circuit and loudspeaker are formed, 4 pin of 555 integrated circuit connect the positive pole of direct supply by the 4th resistance, 8 pin of 555 integrated circuit connect the positive pole of direct supply, 5 pin of 555 integrated circuit connect the negative pole of direct supply by second electric capacity, 1 pin of 555 integrated circuit connects the negative pole of direct supply, 2 pin of 555 integrated circuit and 6 pin connect the negative pole of direct supply by first electric capacity, connect the 5th resistance between 6 pin of 555 integrated circuit and 7 pin of 555 integrated circuit, 7 pin of 555 integrated circuit connect the positive pole of direct supply by the 3rd resistance, it is characterized in that: variable resistor, second resistance and reometer series connection, diode is connected on jack two ends, the emitter of triode connects the negative pole of direct supply, 4 pin of the collector of triode and 555 integrated circuit link to each other, the base stage of triode links to each other with second resistance, voltage table is connected between the emitter of the base stage of triode and triode, reometer, voltage table, jack, variable resistor and switch place the Graphic Panel front.
Because adopt technique scheme, advantage and good effect that the utility model had are: intuitive is strong, and is economical and practical.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is the structural representation of the utility model embodiment.
R among the figure
1. variable resistor R
2. second resistance R
3. the 3rd resistance R
4. the 4th resistance R
5. the 5th resistance A. reometer B. jack G
1. diode G
2. triode V. voltage table C
1. first capacitor C
2. second capacitor C
3. the 3rd capacitor I .555 integrated circuit Y. loudspeaker K. switch E. power supply F. Graphic Panel H. bellmouth orifice D. base
Embodiment
In Fig. 1,4 pin of 555 integrated circuit (I) are by the 4th resistance (R
4) connecing the positive pole of direct supply, 8 pin of 555 integrated circuit (I) connect the positive pole of direct supply, and 5 pin of 555 integrated circuit (I) are by the second electric capacity (C
2) connecing the negative pole of direct supply, 1 pin of 555 integrated circuit (I) connects the negative pole of direct supply, and 2 pin of 555 integrated circuit (I) and 6 pin are by the first electric capacity (C
1) connect the negative pole of direct supply, meet the 5th resistance (R between 7 pin of 6 pin of 555 integrated circuit (I) and 555 integrated circuit (I)
5), 7 pin of 555 integrated circuit (I) are by the 3rd resistance (R
3) connect the positive pole of direct supply, variable resistor (R
1), the second resistance (R
2) and reometer (A) series connection, diode (G
1) be connected on jack (B) two ends, triode (G
2) emitter connect the negative pole of direct supply, triode (G
2) collector and 4 pin of 555 integrated circuit (I) link to each other triode (G
2) the base stage and the second resistance (R
2) link to each other, voltage table (V) is connected on triode (G
2) base stage and triode (G
2) emitter between.
In Fig. 2, Graphic Panel (F) links to each other with base (D), and bellmouth orifice (H) is arranged on the Graphic Panel (F), reometer (A), voltage table (V), jack (B), variable resistor (R
1) and switch (K) place Graphic Panel (F) front.
Claims (1)
1. a diode is controlled demonstrator automatically, and circuit is made up of resistance, reometer, diode, triode, voltage table, electric capacity, 555 integrated circuit and loudspeaker, and 4 pin of 555 integrated circuit (I) are by the 4th resistance (R
4) connecing the positive pole of direct supply, 8 pin of 555 integrated circuit (I) connect the positive pole of direct supply, and 5 pin of 555 integrated circuit (I) are by the second electric capacity (C
2) connecing the negative pole of direct supply, 1 pin of 555 integrated circuit (I) connects the negative pole of direct supply, and 2 pin of 555 integrated circuit (I) and 6 pin are by the first electric capacity (C
1) connect the negative pole of direct supply, meet the 5th resistance (R between 7 pin of 6 pin of 555 integrated circuit (I) and 555 integrated circuit (I)
5), 7 pin of 555 integrated circuit (I) are by the 3rd resistance (R
3) connect the positive pole of direct supply, variable resistor (R
1), the second resistance (R
2) and reometer (A) series connection, diode (G
1) be connected on jack (B) two ends, triode (G
2) emitter connect the negative pole of direct supply, triode (G
2) collector and 4 pin of 555 integrated circuit (I) link to each other triode (G
2) the base stage and the second resistance (R
2) link to each other, voltage table (V) is connected on triode (G
2) base stage and triode (G
2) emitter between, reometer (A), voltage table (V), jack (B), variable resistor (R
1) and switch (K) place Graphic Panel (F) front.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206673708U CN202008767U (en) | 2010-12-12 | 2010-12-12 | Automatic control demonstrating instrument with diode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206673708U CN202008767U (en) | 2010-12-12 | 2010-12-12 | Automatic control demonstrating instrument with diode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202008767U true CN202008767U (en) | 2011-10-12 |
Family
ID=44750427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206673708U Expired - Fee Related CN202008767U (en) | 2010-12-12 | 2010-12-12 | Automatic control demonstrating instrument with diode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202008767U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102385810A (en) * | 2011-10-19 | 2012-03-21 | 盐城师范学院 | Demonstration instrument for semiconductor photosensitive component characteristics |
-
2010
- 2010-12-12 CN CN2010206673708U patent/CN202008767U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102385810A (en) * | 2011-10-19 | 2012-03-21 | 盐城师范学院 | Demonstration instrument for semiconductor photosensitive component characteristics |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111012 Termination date: 20111212 |