CN201078855Y - MP3, MP4 external connection power amplifier - Google Patents
MP3, MP4 external connection power amplifier Download PDFInfo
- Publication number
- CN201078855Y CN201078855Y CNU2007200209879U CN200720020987U CN201078855Y CN 201078855 Y CN201078855 Y CN 201078855Y CN U2007200209879 U CNU2007200209879 U CN U2007200209879U CN 200720020987 U CN200720020987 U CN 200720020987U CN 201078855 Y CN201078855 Y CN 201078855Y
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- Prior art keywords
- power amplifier
- plug
- utility
- model
- functions
- 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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- 238000010586 diagram Methods 0.000 description 1
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- Circuit For Audible Band Transducer (AREA)
Abstract
An MP3 and MP4 external amplifier is provided, which belongs to the technical field of electronic stereo playing equipments. Some MP3 and MP4 do not have power amplifier functions; some MP4 or handsets are provided with the power amplifier functions, but some power amplifier functions are not ideal and the music can only be listened through earplugs. The technical proposal of the utility model is that: a loudspeaker (1) is fixedly connected with a plug (2); two wires of the loudspeaker (1) are fixedly connected with two electrodes on the plug (2). The utility model has the advantages of reasonable and practical structure design and ingenious and novel conception. The utility model is a small power amplifier hardware equipment, is used for adding power amplifier functions to MP3, MP4, handsets, walkmans, CD, etc., which has simple structure, small shape, saves time and material when being manufactured, facilitates use and carrying and can meet the requirement of people on power amplifier.
Description
Technical field:
The utility model relates to electronic audio playback equipment technical field, is the external amplifirer of a kind of MP3MP4 more specifically.
Background technology:
Some MP3 and MP4 do not have the power amplifier function, though carry the power amplifier function as MP4 that has or mobile phone, some function power amplifier effect is undesirable, wants to listen to the music and can only be undertaken by earplug.
Summary of the invention:
For overcoming above-mentioned shortcoming, the purpose of this utility model is the external amplifirer of a kind of MP3MP4 of design.Its technical scheme is: loud speaker 1 is fixedlyed connected with plug 2, and two wires of loud speaker 1 are fixedlyed connected with two electrodes on the plug 2 respectively.The advantage of this utility model is: the reasonable in design practicality, novelty is skillfully constructed, it is a kind of small-sized power amplifier hardware device, be used for increasing the power amplifier function to MP3, MP4, mobile phone, walkman, CD etc., it is simple in structure, make the material-saving that gets up to save time, bodily form compact volume and convenience is used and is carried, and can satisfy the needs of people to power amplifier.
Description of drawings:
Fig. 1 front view, Fig. 2 end view, Fig. 3 are the circuit connection diagram of loud speaker and plug.In the accompanying drawing: 1, loud speaker, 2, plug.
Embodiment:
Claims (1)
1. external amplifirer of MP3MP4, it is characterized in that: loud speaker (1) is fixedlyed connected with plug (2), and two wires of loud speaker (1) are fixedlyed connected with two electrodes on the plug (2) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200209879U CN201078855Y (en) | 2007-05-08 | 2007-05-08 | MP3, MP4 external connection power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200209879U CN201078855Y (en) | 2007-05-08 | 2007-05-08 | MP3, MP4 external connection power amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201078855Y true CN201078855Y (en) | 2008-06-25 |
Family
ID=39570921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200209879U Expired - Fee Related CN201078855Y (en) | 2007-05-08 | 2007-05-08 | MP3, MP4 external connection power amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201078855Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104348945A (en) * | 2013-08-02 | 2015-02-11 | 上海斐讯数据通信技术有限公司 | Audio power amplification device, mobile telephone and control method thereof |
-
2007
- 2007-05-08 CN CNU2007200209879U patent/CN201078855Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104348945A (en) * | 2013-08-02 | 2015-02-11 | 上海斐讯数据通信技术有限公司 | Audio power amplification device, mobile telephone and control method thereof |
| CN104348945B (en) * | 2013-08-02 | 2018-09-28 | 上海斐讯数据通信技术有限公司 | Audio power amplifier device, mobile phone and control method |
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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: 20080625 Termination date: 20100508 |