CN205596170U - Cell -phone volume control circuit - Google Patents
Cell -phone volume control circuit Download PDFInfo
- Publication number
- CN205596170U CN205596170U CN201620359876.XU CN201620359876U CN205596170U CN 205596170 U CN205596170 U CN 205596170U CN 201620359876 U CN201620359876 U CN 201620359876U CN 205596170 U CN205596170 U CN 205596170U
- Authority
- CN
- China
- Prior art keywords
- resistance
- button
- electric capacity
- utility
- model
- 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
Links
Landscapes
- Dc-Dc Converters (AREA)
Abstract
The utility model discloses a cell -phone volume control circuit, including button S1, button S2, resistance R1, electric capacity C1, MOS pipe Q1 and resistance R2, the button S1 one end VCC that connects, button S1 other end connecting resistance R1, the resistance R1 other end be connecting resistance R2, grounded capacitance C1 and MOS pipe Q1's the G utmost point respectively, and resistance R2 passes through button S2 ground connection, and incoming signal vi and electric capacity C2 are connected respectively to MOS pipe Q1's the D utmost point, and ground resistance R3, MSO pipe Q1 are connected respectively to the electric capacity C2 other end S extremely and output vo. The utility model discloses cell -phone volume control circuit adopts a MOS pipe to control, and effective the realization is adjusted the plus -minus of volume, and circuit structure is very simple, and the cost is extremely low, and is small, and portable equipments such as especially adapted cell -phone use.
Description
Technical field
This utility model relates to a kind of volume circuit, specifically a kind of mobile phone volume regulation circuit.
Background technology
Sound is to be produced by object vibration, and the just object at sounding calls source.Sound is the pressure wave motion by air.The little bone (auditory ossicles) of pressure wave vibration internal ear, these vibrations are converted into small electronics E.E.G, and it is exactly the sound that we aware.The principle that internal ear uses is as the pronunciation of microphones capture sound wave or speaker, and it is the relation between the mechanical part of movement and barometric wave.Natural, low at sound wave tone, mobile slow and sufficiently large time, we can essentially " sensation " vibrate health to barometric wave.
Development along with mobile Internet, the portable sets such as mobile phone develop rapidly, one research direction of current whole industry is miniaturization, and miniaturization is accomplished by being optimized these portable device internal electronic circuits simplifying, wherein audio-frequency module is the requisite module of the portable sets such as mobile phone, and simplifying it is a kind of form of thinking usual in industry.
Utility model content
The purpose of this utility model is to provide a kind of mobile phone volume regulation circuit, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the following technical scheme of this utility model offer:
A kind of mobile phone volume regulation circuit, including button S1, button S2, resistance R1, electric capacity C1, metal-oxide-semiconductor Q1 and resistance R2, described button S1 one end connects power supply VCC, the button S1 other end connects resistance R1, the resistance R1 other end connects the G pole of resistance R2, ground capacity C1 and metal-oxide-semiconductor Q1 respectively, resistance R2 passes through button S2 ground connection, and the D pole of metal-oxide-semiconductor Q1 connects input signal Vi and electric capacity C2 respectively, and the electric capacity C2 other end connects S pole and the output end vo of earth resistance R3, MSO pipe Q1 respectively.
As further program of the utility model: described input signal Vi is audio signal.
As this utility model further scheme: described power supply VCC voltage is 3.3V.
Compared with prior art, the beneficial effects of the utility model are: this utility model mobile phone volume regulation circuit uses a metal-oxide-semiconductor to be controlled, and effectively realizes the plus-minus to volume and regulates, circuit structure is the simplest, cost is extremely low, and volume is little, is especially suitable for the portable equipments such as mobile phone and uses.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of mobile phone volume regulation circuit.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
Refer to Fig. 1, in this utility model embodiment, a kind of mobile phone volume regulation circuit, including button S1, button S2, resistance R1, electric capacity C1, metal-oxide-semiconductor Q1 and resistance R2, described button S1 one end connects power supply VCC, the button S1 other end connects resistance R1, the resistance R1 other end connects the G pole of resistance R2, ground capacity C1 and metal-oxide-semiconductor Q1 respectively, resistance R2 passes through button S2 ground connection, the D pole of metal-oxide-semiconductor Q1 connects input signal Vi and electric capacity C2 respectively, and the electric capacity C2 other end connects S pole and the output end vo of earth resistance R3, MSO pipe Q1 respectively；Described input signal Vi is audio signal；Described power supply VCC voltage is 3.3V.
Referring to Fig. 1, Q1 grid G when being different high electronegative potential, the resistance value between source S and drain D just differs, to this end, we to grid G plus different voltage, i.e. resistance value between scalable source S and drain D, thus play the effect of regulation volume；When pressing S1, VCC charges to C1 through S1, R1, and the upper current potential of C1 raises, and the resistance between source S and drain D reduces, and volume increases；Otherwise, when pressing S2, C1 discharges through R2, S2, and the upper current potential of C1 declines, and volume reduces.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and in the case of without departing substantially from spirit or essential attributes of the present utility model, it is possible to realize this utility model in other specific forms.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than described above, it is intended that all changes fallen in the implication of equivalency and scope of claim included in this utility model.Should not be considered as limiting involved claim by any reference in claim.
In addition, it is to be understood that, although this specification is been described by according to embodiment, but the most each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should can also be formed, through appropriately combined, other embodiments that it will be appreciated by those skilled in the art that as an entirety, the technical scheme in each embodiment by those skilled in the art.
Claims (3)
1. a mobile phone volume regulation circuit, including button S1, button S2, resistance R1, electric capacity C1, metal-oxide-semiconductor Q1 and resistance R2, it is characterized in that, described button S1 one end connects power supply VCC, the button S1 other end connects resistance R1, the resistance R1 other end connects the G pole of resistance R2, ground capacity C1 and metal-oxide-semiconductor Q1 respectively, resistance R2 passes through button S2 ground connection, the D pole of metal-oxide-semiconductor Q1 connects input signal Vi and electric capacity C2 respectively, and the electric capacity C2 other end connects S pole and the output end vo of earth resistance R3, MSO pipe Q1 respectively.
Mobile phone volume the most according to claim 1 regulation circuit, it is characterised in that described input signal Vi is audio signal.
Mobile phone volume the most according to claim 1 regulation circuit, it is characterised in that described power supply VCC voltage is 3.3V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620359876.XU CN205596170U (en) | 2016-04-25 | 2016-04-25 | Cell -phone volume control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620359876.XU CN205596170U (en) | 2016-04-25 | 2016-04-25 | Cell -phone volume control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205596170U true CN205596170U (en) | 2016-09-21 |
Family
ID=56936069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620359876.XU Expired - Fee Related CN205596170U (en) | 2016-04-25 | 2016-04-25 | Cell -phone volume control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205596170U (en) |
-
2016
- 2016-04-25 CN CN201620359876.XU patent/CN205596170U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102165793A (en) | Circuit arrangement for providing an analog signal, and electronic apparatus | |
| DK1435104T3 (en) | Digital pulse generator unit | |
| CN101534467B (en) | Condenser microphone | |
| CN101583065A (en) | Integrated ciruict biasing microphone | |
| KR20160131822A (en) | Apparatus for setting up vibration and portable electronic device including apparatus for setting up vibration | |
| CN207070253U (en) | A kind of mobile terminal, ear-micro phone and its Electret condenser microphone circuit | |
| CN203933898U (en) | A kind of VGA CARD is eliminated circuit and active noise reduction earphone | |
| CN103199602A (en) | Mobile terminal charging system and mobile terminal charging method | |
| CN205596170U (en) | Cell -phone volume control circuit | |
| JP4559841B2 (en) | Stereo microphone | |
| DK1339256T3 (en) | Process for the manufacture of acoustic appliances and to reduce wind disturbance | |
| CN205754821U (en) | Interactive teaching and learning recorded broadcast audio process | |
| CN104185119A (en) | Audio device | |
| CN204721585U (en) | Receiver amplifier | |
| CN102203693B (en) | Man-machine interaction feedback device and method thereof | |
| CN205453897U (en) | Dual signal mixer circuit | |
| US20080219479A1 (en) | Audio Output Circuit and Audio Output Method | |
| CN207410389U (en) | A kind of mobile terminal | |
| CN201629138U (en) | Electronic sound pickup device for stringed instrument | |
| CN202374436U (en) | Pop noise suppression circuit | |
| CN202160277U (en) | Condenser type microphone device | |
| TWI410144B (en) | Wave noise eliminating circuit | |
| CN205408131U (en) | Wireless audio frequency transmitter circuit | |
| CN207182162U (en) | A kind of variable osteoacusis bluetooth wearable device | |
| JP2008028789A (en) | Signal terminal device |
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: 20160921 Termination date: 20170425 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |