CN102065364B - portable wireless power amplifier - Google Patents
portable wireless power amplifier Download PDFInfo
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- CN102065364B CN102065364B CN201010617251.6A CN201010617251A CN102065364B CN 102065364 B CN102065364 B CN 102065364B CN 201010617251 A CN201010617251 A CN 201010617251A CN 102065364 B CN102065364 B CN 102065364B
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Abstract
The invention discloses a kind of portable wireless power amplifier, it includes power amplifier main body, the circuit of this power amplifier main body is provided with transformator, Mike's preamplifying circuit, signal amplification circuit and loudspeaker, it is characterized in that: also include charging circuit, priority circuit, Signal Matching circuit and MP3 source of sound module, described charging circuit electrically connects with described transformator, is provided with rechargeable battery in described charging circuit；The signal input part of described priority circuit electrically connects with described Mike's preamplifying circuit, and the signal output part of described priority circuit electrically connects with described Signal Matching circuit；Described Signal Matching circuit electrically connects with MP3 signal output part and the described signal amplification circuit of described MP3 source of sound module；Described MP3 source of sound module electrically connects with the recording output signal end of described signal amplification circuit.It is little that the present invention can realize volume, multi-functional, and amplification effect is good, can pass through alternating current and powered by direct current, it is simple to user uses.
Description
Technical field
The present invention relates to a kind of power amplification device, especially relate to a kind of portable wireless power amplifier.
Background technology
Lecturer says and class hour generally in places such as classrooms accommodating up to a hundred people, in order to enable hearer to hear, then must improve throat decibel, thus often occur that therefore lecturer's throat suffers from the situation of disease.For solving the problems referred to above, wireless power amplifier arises at the historic moment.But, existing wireless power amplifier volume is big, and function singleness, amplification effect is poor, merely by alternating current or powered by direct current, thus brings very big inconvenience to user.
Summary of the invention
The present invention be directed to a kind of portable wireless power amplifier of defect offer that above-mentioned background technology exists, this power amplifier volume is little, multi-functional, and amplification effect is good, can pass through alternating current and powered by direct current, it is simple to user uses.
For achieving the above object, the invention discloses a kind of portable wireless power amplifier, it includes power amplifier main body, the circuit of this power amplifier main body is provided with transformator, Mike's preamplifying circuit, signal amplification circuit and loudspeaker, it is characterized in that: also include charging circuit, priority circuit, Signal Matching circuit and MP3 source of sound module, described charging circuit electrically connects with described transformator, is provided with rechargeable battery in described charging circuit；The signal input part of described priority circuit electrically connects with described Mike's preamplifying circuit, and the signal output part of described priority circuit electrically connects with described Signal Matching circuit；Described Signal Matching circuit electrically connects with MP3 signal output part and the described signal amplification circuit of described MP3 source of sound module；Described MP3 source of sound module electrically connects with the recording output signal end of described signal amplification circuit.
Further, described charging circuit is provided with the rectification circuit electrically connected with described transformator, described rectification circuit is electrically connected with filter circuit, described filter circuit is electrically connected with mu balanced circuit, described mu balanced circuit is electrically connected with some first charging networks, and described first charging network electrically connects with described rechargeable battery.
Further, described filter circuit is electrically connected with the second charging network, and described second charging network is electrically connected with storage battery.
Further, it is provided with high pass filter between described Mike's preamplifying circuit and described signal amplification circuit.
Further, described Mike's preamplifying circuit is provided with antenna, wireless receiving module and the potentiometer connected along order, and described potentiometer electrically connects with described high pass filter, and the outfan of described wireless receiving module electrically connects with described priority circuit.
Further, described Mike's preamplifying circuit is provided with microphone interface, pre-amplifier and the potentiometer connected along order, and described potentiometer electrically connects with described high pass filter, and the outfan of described pre-amplifier electrically connects with described priority circuit.
Further, described Signal Matching circuit is provided with audio input interface, and described audio input interface is electrically connected with matching network, and described matching network is electrically connected with potentiometer, and described potentiometer is electrically connected with signal amplification circuit.
Further, described MP3 source of sound module connects recording access.
Further, described signal amplification circuit is provided with Hybrid amplifier circuit, tone control circuit and the power amplifier connected along order, the outfan of described tone control circuit is electrically connected with recording output amplifier and turn-on muting delay circuit, and described recording output amplifier is electrically connected to described MP3 source of sound module.
In sum, portable wireless power amplifier of the present invention is by the cooperation of above-mentioned each circuit unit, thus it is little to realize volume, multi-functional, and amplification effect is good, can pass through alternating current and powered by direct current, it is simple to user uses.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of an embodiment of the present invention.
Fig. 2 is the circuit theory diagrams of the present invention shown in Fig. 1.
Detailed description of the invention
By inventive feature, technological means and the specific purposes reached, function can be further appreciated that, with detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings.
Refer to Fig. 1 and Fig. 2, portable wireless power amplifier of the present invention includes power amplifier main body 1, and the circuit of this power amplifier main body 1 is provided with transformator T, Mike's preamplifying circuit 2, signal amplification circuit 3, loudspeaker 4, charging circuit 5, priority circuit 6, Signal Matching circuit 7 and MP3 source of sound module 8.The input of described transformator T is electrically connected with the exchange input interface AC_in and power on off switch circuit 9 connected along order, and the outfan of described transformator T is electrically connected with the current rectifying and wave filtering circuit 10 and mu balanced circuit 11 connected along order.
Described charging circuit 5 electrically connects with the outfan of described transformator T, and described charging circuit 5 is provided with the rectification circuit 51 electrically connected with described transformator T.Described rectification circuit 51 is electrically connected with filter circuit 52, described filter circuit 52 is electrically connected with mu balanced circuit 53, and described mu balanced circuit 53 is electrically connected with some first charging networks 54, described first charging network 54 and rechargeable battery (E1, E2, E3) electrical connection.Described filter circuit 52 is electrically connected with the second charging network 55, and described second charging network 55 is electrically connected with storage battery E4.
It is provided with high pass filter 12 between described Mike's preamplifying circuit 2 and described signal amplification circuit 3.Described Mike's preamplifying circuit 2 is provided with antenna (P1, P2), wireless receiving module (21,22) and the potentiometer (VR1, VR2) connected along order, and described potentiometer (VR1, VR2) electrically connects with described high pass filter 12.The outfan of described wireless receiving module (21,22) electrically connects with described priority circuit 6.Described Mike's preamplifying circuit 2 is additionally provided with the microphone interface (MIC1 connected along order, MIC2), pre-amplifier (23,24) and potentiometer (VR3, VR4), described potentiometer (VR3, VR4) electrically connecting with described high pass filter 12, the outfan of described pre-amplifier (23) electrically connects with described priority circuit 6.
Described Signal Matching circuit 7 is provided with audio input interface AUX, described audio input interface AUX and is electrically connected with matching network 71, and described matching network 71 is electrically connected with potentiometer VR5, described potentiometer VR5 and is electrically connected with signal amplification circuit 3.Described signal amplification circuit 3 is provided with Hybrid amplifier circuit 31, tone control circuit 32 and the power amplifier 33 connected along order, the outfan of described tone control circuit 32 is electrically connected with recording output amplifier 34 and turn-on muting delay circuit 35, and described recording output amplifier 34 is electrically connected to described MP3 source of sound module 8.The signal output part of described priority circuit 6 electrically connects with described Signal Matching circuit 7；Described Signal Matching circuit 7 electrically connects with the MP3 signal output part of described MP3 source of sound module 8.Described MP3 source of sound module 8 connects recording access REC, and electrically connects with the recording output signal end of described signal amplification circuit 3.
In sum, portable wireless power amplifier of the present invention is by the cooperation of above-mentioned each circuit unit, thus it is little to realize volume, multi-functional, and amplification effect is good, can pass through alternating current and powered by direct current, it is simple to user uses.
Embodiment described above only have expressed one embodiment of the present invention, and it describes more concrete and detailed, but therefore can not be interpreted as limitation of the scope of the invention.It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with claims.
Claims (7)
1. a portable wireless power amplifier, it includes power amplifier main body (1), the circuit of this power amplifier main body (1) is provided with transformator T, Mike's preamplifying circuit (2), signal amplification circuit (3) and loudspeaker (4), it is characterized in that: also include charging circuit (5), priority circuit (6), Signal Matching circuit (7) and MP3 source of sound module (8), described charging circuit (5) electrically connects with described transformator T, described charging circuit is provided with rechargeable battery (E1 in (5), E2, E3)；The input of described transformator T is electrically connected with the exchange input interface AC_in and power on off switch circuit (9) connected along order；The signal input part of described priority circuit (6) electrically connects with described Mike's preamplifying circuit (2), and the signal output part of described priority circuit (6) electrically connects with described Signal Matching circuit (7)；Described Signal Matching circuit (7) electrically connects with MP3 signal output part and the described signal amplification circuit (3) of described MP3 source of sound module (8)；Described MP3 source of sound module (8) electrically connects with the recording output signal end of described signal amplification circuit (3)；Described loudspeaker (4) electrically connect with the power amplified signal outfan of described signal amplification circuit (3)；
Described charging circuit (5) is provided with the rectification circuit (51) electrically connected with described transformator T, described rectification circuit (51) is electrically connected with filter circuit (52), described filter circuit (52) is electrically connected with mu balanced circuit (53), described mu balanced circuit (53) is electrically connected with some first charging networks (54), described first charging network (54) and described rechargeable battery (E1, E2, E3) electrical connection；
Described filter circuit (52) is electrically connected with the second charging network (55), and described second charging network (55) is electrically connected with storage battery (E4).
Portable wireless power amplifier the most according to claim 1, it is characterised in that: it is provided with high pass filter (12) between described Mike's preamplifying circuit (2) and described signal amplification circuit (3).
Portable wireless power amplifier the most according to claim 2, it is characterized in that: described Mike's preamplifying circuit (2) is provided with the antenna (P1 connected along order, P2), wireless receiving module (21,22) and potentiometer (VR1, VR2), described potentiometer (VR1, VR2) electrically connect with described high pass filter (12), the outfan of described wireless receiving module (21,22) electrically connects with described priority circuit (6).
Portable wireless power amplifier the most according to claim 3, it is characterized in that: described Mike's preamplifying circuit (2) is provided with the microphone interface (MIC1 connected along order, MIC2), pre-amplifier (23,24) and potentiometer (VR3, VR4), described potentiometer (VR3, VR4) electrically connect with described high pass filter (12), the outfan of described pre-amplifier (23,24) electrically connects with described priority circuit (6).
Portable wireless power amplifier the most according to claim 4, it is characterized in that: described Signal Matching circuit (7) is provided with audio input interface AUX, described audio input interface AUX is electrically connected with matching network (71), described matching network (71) is electrically connected with potentiometer VR5, described potentiometer VR5 and is electrically connected with signal amplification circuit (3).
Portable wireless power amplifier the most according to claim 5, it is characterised in that: described MP3 source of sound module (8) connects recording access REC.
Portable wireless power amplifier the most according to claim 6, it is characterized in that: described signal amplification circuit (3) is provided with Hybrid amplifier circuit (31), tone control circuit (32) and the power amplifier (33) connected along order, the outfan of described tone control circuit (32) is electrically connected with recording output amplifier (34) and turn-on muting delay circuit (35), and described recording output amplifier (34) is electrically connected to described MP3 source of sound module (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010617251.6A CN102065364B (en) | 2010-12-31 | 2010-12-31 | portable wireless power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010617251.6A CN102065364B (en) | 2010-12-31 | 2010-12-31 | portable wireless power amplifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102065364A CN102065364A (en) | 2011-05-18 |
| CN102065364B true CN102065364B (en) | 2016-08-03 |
Family
ID=44000419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010617251.6A Expired - Fee Related CN102065364B (en) | 2010-12-31 | 2010-12-31 | portable wireless power amplifier |
Country Status (1)
| Country | Link |
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| CN (1) | CN102065364B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106535036B (en) * | 2017-01-20 | 2019-12-17 | 广州岳胜电子科技有限公司 | portable wireless power amplifier |
| CN107347171B (en) * | 2017-08-25 | 2023-12-22 | 东莞精恒电子有限公司 | Pulse width modulation 600W+150W (PFC) power amplifier module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1734931A (en) * | 2004-09-28 | 2006-02-15 | 康佳集团股份有限公司 | Wireless sound box |
| CN200966159Y (en) * | 2005-11-11 | 2007-10-24 | 江潮 | Active sound box built-in with DVD player |
| CN201928436U (en) * | 2010-12-31 | 2011-08-10 | 东莞精恒电子有限公司 | Portable wireless power amplifier |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2556885Y (en) * | 2002-06-14 | 2003-06-18 | 郑爱民 | Sound with battery for outdoor activities |
| TW549261U (en) * | 2002-11-01 | 2003-08-21 | Enttek Co Ltd | Audio and video apparatus for transportation carrier |
| CN201118955Y (en) * | 2007-11-23 | 2008-09-17 | 恩平市邦华电子有限公司 | A sound amplifier with recording function |
-
2010
- 2010-12-31 CN CN201010617251.6A patent/CN102065364B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1734931A (en) * | 2004-09-28 | 2006-02-15 | 康佳集团股份有限公司 | Wireless sound box |
| CN200966159Y (en) * | 2005-11-11 | 2007-10-24 | 江潮 | Active sound box built-in with DVD player |
| CN201928436U (en) * | 2010-12-31 | 2011-08-10 | 东莞精恒电子有限公司 | Portable wireless power amplifier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102065364A (en) | 2011-05-18 |
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Granted publication date: 20160803 Termination date: 20191231 |