CN202998441U - Sound box power amplification circuit and sound box - Google Patents
Sound box power amplification circuit and sound box Download PDFInfo
- Publication number
- CN202998441U CN202998441U CN 201220688883 CN201220688883U CN202998441U CN 202998441 U CN202998441 U CN 202998441U CN 201220688883 CN201220688883 CN 201220688883 CN 201220688883 U CN201220688883 U CN 201220688883U CN 202998441 U CN202998441 U CN 202998441U
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- port
- sound channel
- input end
- audio amplifier
- power amplification
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Abstract
The utility model discloses a sound box power amplification circuit and a sound box. The sound box power amplification circuit comprises an audio amplifying circuit, a first speaker, a second speaker, a first capacitor and a second capacitor. The audio amplifying circuit comprises a first audio input end, a second audio input end, a first port of a first sound channel, a second port of the first sound channel, a first port of a second sound channel, and a second port of the second sound channel. A positive input end of and a negative input end of the first speaker are respectively connected with the first port of the first sound channel and the second port of the first sound channel. A positive input end of and a negative input end of the second speaker are respectively connected with the first port of the second sound channel and the second port of the second sound channel. The first capacitor is in series connection between the first port of the first sound channel and the ground. The second capacitor is in series connection between the first port of the second sound channel and the ground. The sound box power amplification circuit and the sound box have the advantage that stereo sound with high quality can be outputted.
Description
[technical field]
The utility model relates to a kind of audio amplifier power amplification circuit and audio amplifier.
[background technology]
Along with the progress of science and technology, audio amplifier correlation technique reach its maturity and people to the more and more higher pursuit of audio amplifier tonequality, how improving audio amplifier tonequality is those skilled in the art's common pursuit.And existing some audio amplifier, it can not export the stereo of better quality.
[summary of the invention]
In order to solve the problems of the technologies described above, the utility model provides a kind of audio amplifier power amplification circuit and audio amplifier, so that the stereo output of better quality to be provided.
a kind of audio amplifier power amplification circuit, comprise audio amplifier circuit, the first loudspeaker, the second loudspeaker, the first electric capacity and the second electric capacity, described audio amplifier circuit comprises the first audio input end, the second audio input end, the first port of the first sound channel, the second port of the first sound channel, the first port of second sound channel, the second port of second sound channel, the positive input terminal of described the first loudspeaker be connected with negative input end with the first port of the first sound channel be connected the second port of sound channel and be connected, the positive input terminal of described the second loudspeaker is connected with negative input end and is connected the second port with second sound channel with the first port of second sound channel and is connected, described the first capacitance series is between first port and ground of the first sound channel, described the second capacitance series is between first port and ground of second sound channel.
In order to solve the problems of the technologies described above, the utility model also provides a kind of audio amplifier.
A kind of audio amplifier adopts described audio amplifier power amplification circuit.
The beneficial effects of the utility model are: owing to having adopted the audio amplifier power amplification circuit, and provide the first sound channel and second sound channel output, can export the stereo of better quality.
[description of drawings]
Fig. 1 is the circuit theory schematic diagram of the audio amplifier power amplification circuit of a kind of embodiment of the present utility model.
[embodiment]
Below with reference to accompanying drawing, specific embodiment of the utility model is described in further detail.
as shown in Figure 1, the audio amplifier power amplification circuit of a kind of embodiment, comprise audio amplifier circuit, the first loudspeaker SP1, the second loudspeaker SP2, the first capacitor C 1 and the second capacitor C 2, described audio amplifier circuit comprises the first audio input end 1, the second audio input end 2, the first port 3 of the first sound channel, the second port 4 of the first sound channel, the first port 5 of second sound channel, the second port 6 of second sound channel, the positive input terminal of described the first loudspeaker SP1 be connected with negative input end with the first port 3 of the first sound channel be connected the second port 4 of sound channel and be connected, the positive input terminal of described the second loudspeaker SP2 is connected with negative input end and is connected the second port 6 with second sound channel with the first port 5 of second sound channel and is connected, described the first capacitor C 1 is serially connected between first port 3 and ground of the first sound channel, described the second capacitor C 2 is serially connected between first port 5 and ground of second sound channel.
Described audio amplifier circuit can adopt chip NS4263, can realize switching between AB class/D class mode of operation.
The audio amplifier of a kind of embodiment adopts described audio amplifier power amplification circuit.
Claims (2)
1. audio amplifier power amplification circuit, it is characterized in that: comprise audio amplifier circuit, the first loudspeaker, the second loudspeaker, the first electric capacity and the second electric capacity, described audio amplifier circuit comprises the first audio input end, the second audio input end, the first port of the first sound channel, the second port of the first sound channel, the first port of second sound channel, the second port of second sound channel, the positive input terminal of described the first loudspeaker be connected with negative input end with the first port of the first sound channel be connected the second port of sound channel and be connected, the positive input terminal of described the second loudspeaker is connected with negative input end and is connected the second port with second sound channel with the first port of second sound channel and is connected, described the first capacitance series is between first port and ground of the first sound channel, described the second capacitance series is between first port and ground of second sound channel.
2. an audio amplifier, is characterized in that: adopt audio amplifier power amplification circuit as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220688883 CN202998441U (en) | 2012-12-12 | 2012-12-12 | Sound box power amplification circuit and sound box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220688883 CN202998441U (en) | 2012-12-12 | 2012-12-12 | Sound box power amplification circuit and sound box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202998441U true CN202998441U (en) | 2013-06-12 |
Family
ID=48569565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220688883 Expired - Fee Related CN202998441U (en) | 2012-12-12 | 2012-12-12 | Sound box power amplification circuit and sound box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202998441U (en) |
-
2012
- 2012-12-12 CN CN 201220688883 patent/CN202998441U/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: 20130612 Termination date: 20151212 |
|
| EXPY | Termination of patent right or utility model |