CN206422896U - A kind of audio amplifier - Google Patents
A kind of audio amplifier Download PDFInfo
- Publication number
- CN206422896U CN206422896U CN201621427742.3U CN201621427742U CN206422896U CN 206422896 U CN206422896 U CN 206422896U CN 201621427742 U CN201621427742 U CN 201621427742U CN 206422896 U CN206422896 U CN 206422896U
- Authority
- CN
- China
- Prior art keywords
- parameter value
- power amplifier
- connection
- cwvp
- amplifier chips
- 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
Abstract
A kind of audio amplifier, including sound box and loudspeaker SP1 and loudspeaker SP2, and LM2822 power amplifier chips, electric capacity C1 to C9, resistance R1 to R6, the 3D sound effect circuits of potentiometer CWVP/L and CWVP/R composition, can realize two-channel 3D sound effect technologies, it is to avoid noise is disturbed.
Description
Technical field
The utility model is related to a kind of audio amplifier.
Background technology
With the high speed development of science and technology, audio amplifier is as the terminal of whole sound system, and it is the conversion of audio electric energy that it, which is acted on,
Space is radiated into corresponding acoustic energy, and it.Audio amplifier is the extremely important part of sound system, because it is responsible for
Electric signal, which is transformed into acoustical signal, supplies the ear of people directly to listen to this mission critical, and it directly will play friendship with the sense of hearing of people
Road, and the sense of hearing of people is very sensitive, and there is very strong resolving ability to the tone color of complex sound.Because human ear is to sound
The subjective feeling of sound exactly evaluates the most important standard of a sound system tonequality quality, therefore, and the performance height of audio amplifier is right
The playing quality of one sound system is to play key effect.However, there is tonequality in the sound equipment 3D sounds school technology in existing design
Situation about being interfered, influences tonequality.
The content of the invention
The utility model patent provides a kind of audio amplifier, can realize two-channel 3D sound effect technologies, and tonequality is perfect.
Above-mentioned technical problem, audio amplifier of the present utility model, including sound box and loudspeaker SP1 and loudspeaker SP2 are solved, also
Including a LM2822 power amplifier chips, electric capacity C1 to C9, resistance R1 to R6, potentiometer CWVP/L and CWVP/R, the LM2822 work(
Put the P1 pins connection electric capacity C1 and resistance R1 in parallel with C1 and electric capacity C2 of chip, C1, C2 and SP1 connection；
The P2 pins connection connection electric capacity C3 and power supply of LM2822 power amplifier chips；LM2822 power amplifier chips P3 pins connection C4, R2 and
C5, the P4 pins connection C5 of the LM2822 power amplifier chips；The P5 pins connection C6 of the LM2822 power amplifier chips；It is described
The P6 connection R3 and R4, C7 of LM2822 power amplifier chips, the R3 are connected with C6, the left input of C7 connection CWVP/L, CWVP/L connections
End；The P7 pins connection R6 and C8 of the LM2822 power amplifier chips；The LM2822 power amplifier chips P8 pins connection C9 and
CWVP/R, the R5 in parallel between P7 and C9, the right input of CWVP/R connections；Wherein, C1 and C4 parameter value be 220u, C2, C5,
C7 and C8 parameter value is 104p, and C3 parameter value is 470u, and C6 parameter value is 100u, and R1, R2 parameter value are 4.7 Ω,
R3, R5 parameter value are that 1k Ω, R3, R5 parameter value are that 1k Ω, R5, R6 parameter value is 4.7k Ω.
Said structure, due to using LM28822 and above-mentioned input circuit and input circuit, can realize two-channel 3D sounds
Effect technology, it is to avoid noise is disturbed.
Brief description of the drawings
Fig. 1 is system structure diagram of the present utility model.
Fig. 2 is electrical block diagram of the present utility model.
Embodiment
Come that the utility model is described in more detail with reference to the accompanying drawings and detailed description.
As illustrated in fig. 1 and 2, the present embodiment is a kind of sound box, power module, loudspeaker SP1 and loudspeaker SP2, in addition to
One LM2822 power amplifier chips, electric capacity C1 to C9, resistance R1 to R6, potentiometer CWVP/L and CWVP/R, the LM2822 power amplifiers core
The P1 pins connection electric capacity C1 and resistance R1 in parallel with C1 and electric capacity C2 of piece, C1, C2 and SP1 connection；LM2822 work(
Put the P2 pins connection connection electric capacity C3 and power supply of chip；The P3 pins of LM2822 power amplifier chips connect C4, R2 and C5, described
The P4 pins connection C5 of LM2822 power amplifier chips；The P5 pins connection C6 of the LM2822 power amplifier chips；The LM2822 power amplifiers
The P6 connection R3 and R4, C7 of chip, the R3 are connected with C6, the left input of C7 connection CWVP/L, CWVP/L connections；It is described
The P7 pins connection R6 and C8 of LM2822 power amplifier chips；The P8 pins connection C9 and CWVP/R of the LM2822 power amplifier chips,
R5 in parallel between P7 and C9, the right input of CWVP/R connections；Wherein, C1 and C4 parameter value is 220u, C2, C5, C7 and C8's
Parameter value is 104p, and C3 parameter value is 470u, and C6 parameter value is 100u, and R1, R2 parameter value are 4.7 Ω, R3, R5's
Parameter value is that 1k Ω, R3, R5 parameter value are that 1k Ω, R5, R6 parameter value is 4.7k Ω.Wherein power module provides for circuit
Power supply, from left/right input input audio signal, from due to using LM28822 and above-mentioned input circuit, input circuit, and
The parameter value of the present embodiment is set, two-channel 3D sound effect technologies can be realized, it is to avoid noise is disturbed.
Claims (1)
1. a kind of audio amplifier, including sound box and loudspeaker SP1 and loudspeaker SP2, it is characterised in that：Also include a LM2822 power amplifier cores
Piece, electric capacity C1 to C9, resistance R1 to R6, potentiometer CWVP/L and CWVP/R, the P1 pins connection of the LM2822 power amplifier chips
The electric capacity C1 and resistance R1 in parallel with C1 and electric capacity C2, C1, C2 and SP1 connection；The P2 pins of LM2822 power amplifier chips
Connection connection electric capacity C3 and power supply；P3 pins connection C4, R2 and C5 of LM2822 power amplifier chips, the LM2822 power amplifier chips
P4 pins connect C5；The P5 pins connection C6 of the LM2822 power amplifier chips；The P6 connection R3 of the LM2822 power amplifier chips and
R4, C7, the R3 are connected with C6, the left input of C7 connection CWVP/L, CWVP/L connections；The P7 of the LM2822 power amplifier chips
Pin connects R6 and C8；P8 pins connection C9 and CWVP/R, the R5 in parallel between P7 and C9 of the LM2822 power amplifier chips,
The right input of CWVP/R connections；Wherein, C1 and C4 parameter value is 220u, and C2, C5, C7 and C8 parameter value are 104p, C3's
Parameter value is 470u, and C6 parameter value is 100u, and R1, R2 parameter value are 4.7 Ω, and R3, R5 parameter value are 1k Ω, R3, R5
Parameter value be that 1k Ω, R5, R6 parameter value is 4.7k Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621427742.3U CN206422896U (en) | 2016-12-23 | 2016-12-23 | A kind of audio amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621427742.3U CN206422896U (en) | 2016-12-23 | 2016-12-23 | A kind of audio amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206422896U true CN206422896U (en) | 2017-08-18 |
Family
ID=59576015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621427742.3U Expired - Fee Related CN206422896U (en) | 2016-12-23 | 2016-12-23 | A kind of audio amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206422896U (en) |
-
2016
- 2016-12-23 CN CN201621427742.3U patent/CN206422896U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104519444A (en) | Method and apparatus for an integrated headset switch with reduced crosstalk noise | |
| US8666098B2 (en) | Single earphone for stereo and monaural audio devices | |
| DE102017105594A1 (en) | Amplifier unit for a sound transducer and sound generation unit | |
| CN204377104U (en) | The earphone of In-Ear moving-coil and the mixing of dynamic iron | |
| CN101014211A (en) | 5.1 track earphone with USB interface | |
| CN204090127U (en) | A kind of device sound mixing | |
| CN206422896U (en) | A kind of audio amplifier | |
| US20130114816A1 (en) | Audio Coupling System | |
| CN106170114A (en) | Control method, device and the audio-frequence player device of a kind of audio frequency output | |
| CN205320231U (en) | Multimedia system | |
| CN102196338A (en) | Loudspeaking system and control method thereof | |
| CN102572632A (en) | Vehicle-mounted information system device with earphone interface | |
| TWI353717B (en) | ||
| CN203279152U (en) | Stereo headphone and circuit thereof | |
| CN206422897U (en) | A kind of portable sound box | |
| JPH0746083A (en) | Sound synthesizing and band limiting circuit and low-frequency sound reinforcing circuit | |
| US8625820B2 (en) | Amplifier circuit audio circuit and electronic device | |
| JP6266701B2 (en) | Audio signal extraction input device for smart devices | |
| CN201601811U (en) | Attachable subwoofer and portable sound box combination device | |
| CN202374424U (en) | Vehicle-mounted information system device with earphone interface | |
| CN207926858U (en) | Two-channel bluetooth headset | |
| CN202634649U (en) | Double-microphone | |
| CN2691198Y (en) | Digital sund plager with vibrative function | |
| JP6093373B2 (en) | Digital speaker system | |
| KR100923573B1 (en) | Ear and mike device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170818 Termination date: 20171223 |