CN204117589U - A kind of vibration phonation circuit - Google Patents
A kind of vibration phonation circuit Download PDFInfo
- Publication number
- CN204117589U CN204117589U CN201420594431.0U CN201420594431U CN204117589U CN 204117589 U CN204117589 U CN 204117589U CN 201420594431 U CN201420594431 U CN 201420594431U CN 204117589 U CN204117589 U CN 204117589U
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- resistance
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- triode
- electric capacity
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Abstract
The utility model discloses a kind of vibration phonation circuit, external power supply, comprise: the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity, the first triode, the second triode, the 3rd triode and sonic vibrator, between the first input end of described vibration phonation circuit and the second input end, access described power supply; The base stage of described first triode connects first input end by described first resistance, and collector connects first input end by described second resistance.The base stage of described second triode connects first input end by described 3rd resistance, and collector connects first input end by described 4th resistance.The base stage of described 3rd triode connects first input end by described 5th resistance, and collector connects first input end by described sonic vibrator.The utility model is simple, low cost, can realize without the need to increasing extra trigger pip the sounding that vibrates.
Description
Technical field
The utility model relates to electronic circuit field, particularly relates to a kind of vibration phonation circuit.
Background technology
At present, the various sound-producing devices (such as: warning horn, doorbell etc.) in daily life, work are widely used, and generally all need to adopt the devices such as hummer, and provide extra trigger pip to work, cost is higher.Therefore, a kind of simple phonation circuit of design is also applied, and to substitute traditional sound-producing device, becomes the problem that those skilled in the art need to solve.
Utility model content
The purpose of this utility model is to provide a kind of vibration phonation circuit of simple, low cost, can realize without the need to increasing extra trigger pip the sounding that vibrates.
The technical scheme realizing above-mentioned purpose is:
A kind of vibration phonation circuit, external power supply, comprise: the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity, the first triode, the second triode, the 3rd triode and sonic vibrator, wherein:
Described power supply is accessed between the first input end of described vibration phonation circuit and the second input end;
The base stage of described first triode connects first input end by described first resistance, and collector connects first input end by described second resistance, and emitter connects the second input end;
The base stage of described second triode connects first input end by described 3rd resistance, and collector connects first input end by described 4th resistance, and emitter connects the second input end;
The base stage of described 3rd triode connects first input end by described 5th resistance, and collector connects first input end by described sonic vibrator, and emitter connects the second input end;
One end of described first electric capacity connects the base stage of described first triode, and the other end connects the collector of described second triode;
One end of described second electric capacity connects the collector of described first triode, and the other end connects the base stage of described second triode;
One end of described 3rd electric capacity connects the collector of described second triode, and the other end connects the base stage of described 3rd triode.
In certain embodiments, described power supply is accumulator, and the positive pole of this accumulator connects first input end, and negative pole connects the second input end.
In certain embodiments, also comprise switch, described first resistance, described second resistance, described 3rd resistance, described 4th resistance, described 5th resistance are all connected first input end by described switch with described sonic vibrator.
The beneficial effects of the utility model are: the utility model, by effective configuration of resistance, electric capacity and triode, from the square wave producing certain frequency, makes sonic vibrator sounding, without the need to external trigger signal.Thus traditional sound-producing device is replaced in application, greatly reduces cost.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the vibration phonation circuit of a kind of embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Refer to Fig. 1, vibration phonation circuit of the present utility model, comprise: the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the first triode Q1, the second triode Q2, the 3rd triode Q3 and sonic vibrator SK, wherein:
Vibration phonation circuit is containing first input end and the second input end.The positive pole of external power supply connects first input end, and negative pole connects the second input end.In this enforcement, power supply is accumulator.Can certainly be other forms of power supply, such as dry cell etc.
The base stage of the first triode Q1 connects first input end by the first resistance R1, and collector connects first input end by the second resistance R2, and emitter connects the second input end;
The base stage of the second triode Q2 connects first input end by the 3rd resistance R3, and collector connects first input end by the 4th resistance R4, and emitter connects the second input end;
The base stage of the 3rd triode Q3 connects first input end by the 5th resistance R5, collector connects first input end (that is: sonic vibrator SK is connected between the collector of first input end and the 3rd triode Q3) by sonic vibrator SK, and emitter connects the second input end;
One end of first electric capacity C1 connects the base stage of the first triode Q1, and the other end connects the collector of the second triode Q2;
One end of second electric capacity C2 connects the collector of the first triode Q1, and the other end connects the base stage of the second triode Q2;
One end of 3rd electric capacity C3 connects the collector of the second triode Q2, and the other end connects the base stage of the 3rd triode Q3.
Principle of work of the present utility model: after access power supply, the base stage of the first triode Q1 and the base stage of the second triode Q2 obtain forward bias respectively through the first resistance R1, the 3rd resistance R3.Be coupled by the first electric capacity C1, the second electric capacity C2 between first triode Q1 and the second triode Q2, first electric capacity C1 and the second electric capacity C2 alternately charge and discharge, thus make the first triode Q1 and the second triode Q2 alternately conducting and cut-off, produce the square wave of certain frequency, enter the 3rd triode Q3 by the 3rd electric capacity C3, finally make sonic vibrator SK sound.So without the need to increasing extra trigger pip.Vibration phonation circuit of the present utility model is applied and replaces traditional sound-producing device, effectively reduce costs.
Preferably, vibration phonation circuit of the present utility model also comprises switch S, and the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5 and sonic vibrator SK all connect into first input end by switch S.So that the keying of overall control circuit, replace the device such as doorbell, alarm better.
The above is only a kind of embodiment of the present utility model; it should be pointed out that to those skilled in the art, under the prerequisite not departing from the utility model creation design; can also make some similar distortion and improvement, these also should be considered as within protection domain of the present utility model.
Claims (3)
1. a vibration phonation circuit, external power supply, it is characterized in that, comprise: the first resistance (R1), the second resistance (R2), the 3rd resistance (R3), the 4th resistance (R4), the 5th resistance (R5), the first electric capacity (C1), the second electric capacity (C2), the 3rd electric capacity (C3), the first triode (Q1), the second triode (Q2), the 3rd triode (Q3) and sonic vibrator (SK), wherein:
Described power supply is accessed between the first input end of described vibration phonation circuit and the second input end;
The base stage of described first triode (Q1) connects first input end by described first resistance (R1), and collector connects first input end by described second resistance (R2), and emitter connects the second input end;
The base stage of described second triode (Q2) connects first input end by described 3rd resistance (R3), and collector connects first input end by described 4th resistance (R4), and emitter connects the second input end;
The base stage of described 3rd triode (Q3) connects first input end by described 5th resistance (R5), and collector connects first input end by described sonic vibrator (SK), and emitter connects the second input end;
One end of described first electric capacity (C1) connects the base stage of described first triode (Q1), and the other end connects the collector of described second triode (Q2);
One end of described second electric capacity (C2) connects the collector of described first triode (Q1), and the other end connects the base stage of described second triode (Q2);
One end of described 3rd electric capacity (C3) connects the collector of described second triode (Q2), and the other end connects the base stage of described 3rd triode (Q3).
2. vibration phonation circuit according to claim 1, is characterized in that, described power supply is accumulator, and the positive pole of this accumulator connects first input end, and negative pole connects the second input end.
3. vibration phonation circuit according to claim 1, it is characterized in that, also comprise switch (S), described first resistance (R1), described second resistance (R2), described 3rd resistance (R3), described 4th resistance (R4), described 5th resistance (R5) are all connected first input end by described switch (S) with described sonic vibrator (SK).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420594431.0U CN204117589U (en) | 2014-10-14 | 2014-10-14 | A kind of vibration phonation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420594431.0U CN204117589U (en) | 2014-10-14 | 2014-10-14 | A kind of vibration phonation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204117589U true CN204117589U (en) | 2015-01-21 |
Family
ID=52334879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420594431.0U Expired - Fee Related CN204117589U (en) | 2014-10-14 | 2014-10-14 | A kind of vibration phonation circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204117589U (en) |
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2014
- 2014-10-14 CN CN201420594431.0U patent/CN204117589U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20161014 |
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| CF01 | Termination of patent right due to non-payment of annual fee |