CN204031183U - A kind of voice warning circuit receiving for light wave - Google Patents
A kind of voice warning circuit receiving for light wave Download PDFInfo
- Publication number
- CN204031183U CN204031183U CN201420484056.4U CN201420484056U CN204031183U CN 204031183 U CN204031183 U CN 204031183U CN 201420484056 U CN201420484056 U CN 201420484056U CN 204031183 U CN204031183 U CN 204031183U
- Authority
- CN
- China
- Prior art keywords
- operational amplifier
- speech power
- battery pack
- power amplifier
- phonetic speech
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of voice warning circuit receiving for light wave, comprise battery pack, operational amplifier, phonetic speech power amplifier, loud speaker and photodiode, battery pack is to operational amplifier, the power supply of phonetic speech power amplifier, the positive pole of photodiode is connected with the reverse input end of operational amplifier, the negative pole of photodiode is connected with the positive input of operational amplifier, the output of operational amplifier is connected with the reverse input end of operational amplifier by feedback resistance, the output of operational amplifier is also connected with the negative pole of battery pack by slide rheostat, the exit of slide rheostat is connected with the reverse input end of phonetic speech power amplifier, the positive input of phonetic speech power amplifier is connected with the negative pole of battery pack, the output of phonetic speech power amplifier is connected with loud speaker.Circuit of the present utility model is simple, is easy to carry, low in energy consumption, safe and reliable, with low cost, has a good application prospect.
Description
Technical field
The utility model relates to a kind of voice warning circuit receiving for light wave, belongs to electronic measuring technology field.
Background technology
Light wave receiver, for receiving lightwave signal for what test, is widely applied in geological prospecting, mine collection field, especially for the staff of underground work, it is very necessary carrying light wave receiver, in the time of unexpected generation, facilitate the staff of underground work, find light source, so that the very first time is found outlet, but on the market, existing light wave receiver, volume is large, be not easy to carry, complex circuit designs, cost compare is high, is unfavorable for promoting the use of.
Utility model content
The purpose of this utility model is to overcome existing light wave receiver, and volume is large, be not easy to carry, and complex circuit designs, cost compare is high, is unfavorable for the problem of promoting the use of.The voice warning circuit receiving in light wave of the present utility model, circuit is simple, and cost of manufacture is low, facilitates the personnel of underground work to carry, easy to use, has a good application prospect.
In order to achieve the above object, the technical scheme that the utility model adopts is:
A kind of voice warning circuit receiving for light wave, it is characterized in that: comprise battery pack G, operational amplifier A, phonetic speech power amplifier M, loud speaker S and photodiode D, the positive pole of described battery pack G is external operational amplifier A respectively, the positive voltage input of phonetic speech power amplifier M, the external calculation amplifier of the negative difference A of described battery pack G, the negative voltage input of phonetic speech power amplifier M, the positive pole of described photodiode D is connected with the reverse input end of operational amplifier A, the negative pole of described photodiode D is connected with the positive input of operational amplifier A, the output of described operational amplifier A is connected with the reverse input end of operational amplifier A by feedback resistance R1, the output of described operational amplifier A is also connected with the negative pole of battery pack G by slide rheostat R2, the exit of described slide rheostat R2 is connected with the reverse input end of phonetic speech power amplifier M, the positive input of described phonetic speech power amplifier M is connected with the negative pole of battery pack G, the output of described phonetic speech power amplifier M is connected with loud speaker S.
Aforesaid a kind of voice warning circuit receiving for light wave, it is characterized in that: the reverse input end of the described operational amplifier A first polar capacitor C1 that also connects, the positive pole of described the first polar capacitor C1 is connected with the positive pole of photodiode D, and described the first negative pole of polar capacitor C1 and the reverse input end of operational amplifier A are connected.
Aforesaid a kind of voice warning circuit receiving for light wave, is characterized in that: the output of described phonetic speech power amplifier M is also in series with the second polar capacitor C2.
Aforesaid a kind of voice warning circuit receiving for light wave, is characterized in that: the positive pole of described battery pack G is in series with K switch.
Aforesaid a kind of voice warning circuit receiving for light wave, is characterized in that: the output voltage of described battery pack G is 12V.
Aforesaid a kind of voice warning circuit receiving for light wave, is characterized in that: described operational amplifier A is μ A741 integrated chip, described phonetic speech power amplifier M is LM386 chip.
The beneficial effects of the utility model are: the voice warning circuit receiving for light wave of the present utility model, adopts photodiode D to receive for lightwave signal, and be connected with operational amplifier, phonetic speech power amplifier, realize voice message, slide rheostat plays gain and controls, and regulates the sensitivity of photodiode D, and circuit is simple, volume is little, the personnel of being convenient to underground work carry, low in energy consumption, safe and reliable, with low cost, have a good application prospect.
Brief description of the drawings
Fig. 1 is the circuit diagram of the voice warning circuit receiving for light wave of the present utility model.
Embodiment
Below in conjunction with Figure of description, the utility model is described in further detail.Following examples are only for the technical solution of the utility model is more clearly described, and can not limit protection range of the present utility model with this.
As shown in Figure 1, a kind of voice warning circuit receiving for light wave, comprise battery pack G, operational amplifier A, phonetic speech power amplifier M, loud speaker S and photodiode D, the positive pole of battery pack G is in series with K switch, and output voltage is 12V, the positive pole of battery pack G is external operational amplifier A respectively, the positive voltage input of phonetic speech power amplifier M, the external calculation amplifier of the negative difference A of battery pack G, the negative voltage input of phonetic speech power amplifier M, operational amplifier A is μ A741 integrated chip, described phonetic speech power amplifier M is LM386 chip, operating voltage is 12V, the positive pole of photodiode D is connected with the reverse input end of operational amplifier A, the negative pole of photodiode D is connected with the positive input of operational amplifier A, the output of operational amplifier A is connected with the reverse input end of operational amplifier A by feedback resistance R1, the output of operational amplifier A is also connected with the negative pole of battery pack G by slide rheostat R2, the exit of slide rheostat R2 is connected with the reverse input end of phonetic speech power amplifier M, slide rheostat R2 can regulate the gain of operational amplifier A, to reach the sensitivity of controlling photodiode D, the positive input of phonetic speech power amplifier M is connected with the negative pole of battery pack G, the output of phonetic speech power amplifier M is connected with loud speaker S, in the time of photodiode D acceptance point lightwave signal, after amplifying by operational amplifier A, drive phonetic speech power amplifier M work, phonetic speech power amplifier M drives loud speaker S to send voice prompt, near reminding staff, there is light source, circuit is simple, volume is little, the personnel of being convenient to underground work carry, low in energy consumption, safe and reliable, with low cost.
The reverse input end of the described operational amplifier A first polar capacitor C1 that also connects, the positive pole of the first polar capacitor C1 is connected with the positive pole of photodiode D, the first negative pole of polar capacitor C1 and the reverse input end of operational amplifier A are connected, the output of phonetic speech power amplifier M is also in series with the second polar capacitor C2, the first polar capacitor C1, the second polar capacitor C2, interference that can elimination external environment condition, prevents voice warning circuit misoperation, improves the reliability of circuit.
More than show and described general principle of the present utility model, principal character and advantage.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. the voice warning circuit receiving for light wave, it is characterized in that: comprise battery pack G, operational amplifier A, phonetic speech power amplifier M, loud speaker S and photodiode D, the positive pole of described battery pack G is external operational amplifier A respectively, the positive voltage input of phonetic speech power amplifier M, the external calculation amplifier of the negative difference A of described battery pack G, the negative voltage input of phonetic speech power amplifier M, the positive pole of described photodiode D is connected with the reverse input end of operational amplifier A, the negative pole of described photodiode D is connected with the positive input of operational amplifier A, the output of described operational amplifier A is connected with the reverse input end of operational amplifier A by feedback resistance R1, the output of described operational amplifier A is also connected with the negative pole of battery pack G by slide rheostat R2, the exit of described slide rheostat R2 is connected with the reverse input end of phonetic speech power amplifier M, the positive input of described phonetic speech power amplifier M is connected with the negative pole of battery pack G, the output of described phonetic speech power amplifier M is connected with loud speaker S.
2. a kind of voice warning circuit receiving for light wave according to claim 1, it is characterized in that: the reverse input end of the described operational amplifier A first polar capacitor C1 that also connects, the positive pole of described the first polar capacitor C1 is connected with the positive pole of photodiode D, and described the first negative pole of polar capacitor C1 and the reverse input end of operational amplifier A are connected.
3. a kind of voice warning circuit receiving for light wave according to claim 1, is characterized in that: the output of described phonetic speech power amplifier M is also in series with the second polar capacitor C2.
4. a kind of voice warning circuit receiving for light wave according to claim 1, is characterized in that: the positive pole of described battery pack G is in series with K switch.
5. a kind of voice warning circuit receiving for light wave according to claim 1, is characterized in that: the output voltage of described battery pack G is 12V.
6. a kind of voice warning circuit receiving for light wave according to claim 1, is characterized in that: described operational amplifier A is μ A741 integrated chip, and described phonetic speech power amplifier M is LM386 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420484056.4U CN204031183U (en) | 2014-08-26 | 2014-08-26 | A kind of voice warning circuit receiving for light wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420484056.4U CN204031183U (en) | 2014-08-26 | 2014-08-26 | A kind of voice warning circuit receiving for light wave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204031183U true CN204031183U (en) | 2014-12-17 |
Family
ID=52071007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420484056.4U Expired - Fee Related CN204031183U (en) | 2014-08-26 | 2014-08-26 | A kind of voice warning circuit receiving for light wave |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204031183U (en) |
-
2014
- 2014-08-26 CN CN201420484056.4U patent/CN204031183U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 225300 Taizhou Institute of science and technology, Nanjing University of Science and Technology, Jiangsu, Taizhou province 8 Patentee after: Ding Yong Address before: 210000 A building, No. 106, software Avenue, Yuhuatai District, Jiangsu, Nanjing, 3 Patentee before: Ding Yong |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20150826 |
|
| EXPY | Termination of patent right or utility model |