CN201928436U - Portable wireless power amplifier - Google Patents
Portable wireless power amplifier Download PDFInfo
- Publication number
- CN201928436U CN201928436U CN2010206932810U CN201020693281U CN201928436U CN 201928436 U CN201928436 U CN 201928436U CN 2010206932810 U CN2010206932810 U CN 2010206932810U CN 201020693281 U CN201020693281 U CN 201020693281U CN 201928436 U CN201928436 U CN 201928436U
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- circuit
- electrically connected
- power amplifier
- signal
- wireless power
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- Expired - Lifetime
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Abstract
The utility model discloses a portable wireless power amplifier which comprises a power amplifier main body, wherein a circuit of the power amplifier main body is provided with a transformer, a microphone pre-stage amplifying circuit, a signal amplifying circuit and a speaker. The portable wireless power amplifier is characterized by also comprising a charging circuit, a priority circuit, a signal matching circuit and an MP3 sound source module, wherein the charging circuit is electrically connected with the transformer, the charging circuit is internally provided with a rechargeable battery, a signal input terminal of the priority circuit is electrically connected with the microphone pre-stage amplifying circuit, a signal output terminal of the priority circuit is electrically connected with the signal matching circuit, the signal matching circuit is electrically connected with an MP3 signal output terminal of the MP3 sound source module and the signal amplifying circuit, and the MP3 sound source module is electrically connected with a recording output signal terminal of the signal amplifying circuit. The portable wireless power amplifier is small in volume, multifunctional and good in amplification effect, and can adopt alternating current and direct current for supplying power, so as to facilitate the use of a user.
Description
Technical field
The utility model relates to a kind of power amplification device, especially relates to a kind of portable mobile wireless power amplifier.
Background technology
The lecturer says and usually in a place such as classroom that holds the up to a hundred people, can hear in order to make the hearer class hour, then must improve the throat decibel, thereby occurs the situation that therefore lecturer's throat suffers from disease often.For addressing the above problem, wireless power amplifier arises at the historic moment.Yet existing wireless power amplifier volume is big, function singleness, and amplification effect is poor, only can pass through alternating current or powered by direct current, thereby bring very big inconvenience to the user.
Summary of the invention
The utility model is to provide a kind of portable mobile wireless power amplifier at the defective that the above-mentioned background technology exists, and this power amplifier volume is little, multi-functional, and amplification effect is good, can be convenient to the user and use by alternating current and powered by direct current.
For achieving the above object, the utility model discloses a kind of portable mobile wireless power amplifier, it comprises the power amplifier main body, the circuit of this power amplifier main body is provided with transformer, Mike's preamplifying circuit, signal amplification circuit and loudspeaker, it is characterized in that: also comprise charging circuit, priority circuit, Signal Matching circuit and MP3 source of sound module, described charging circuit is electrically connected with described transformer, is provided with rechargeable battery in the described charging circuit; The signal input part of described priority circuit is electrically connected with described Mike's preamplifying circuit, and the signal output part of described priority circuit is electrically connected with described Signal Matching circuit; Described Signal Matching circuit is electrically connected with the MP3 signal output part and the described signal amplification circuit of described MP3 source of sound module; Described MP3 source of sound module is electrically connected with the recording output signal end of described signal amplification circuit.
Further, described charging circuit is provided with the rectification circuit that is electrically connected with described transformer, described rectification circuit is electrically connected with filter circuit, described filter circuit is electrically connected with voltage stabilizing circuit, described voltage stabilizing circuit is electrically connected with some first charging networks, and described first charging network is electrically connected with described rechargeable battery.
Further, described filter circuit is electrically connected with second charging network, and described second charging network is electrically connected with storage battery.
Further, be provided with high pass filter between described Mike's preamplifying circuit and the described signal amplification circuit.
Further, described Mike's preamplifying circuit is provided with antenna, wireless receiving module and the potentiometer that connects along order, and described potentiometer is electrically connected with described high pass filter, and the output of described wireless receiving module is electrically connected with described priority circuit.
Further, described Mike's preamplifying circuit is provided with Mike's interface, pre-amplifier and the potentiometer that connects along order, and described potentiometer is electrically connected with described high pass filter, and the output of described pre-amplifier is electrically connected 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 is connected with recording access.
Further, described signal amplification circuit is provided with mixing amplifying circuit, tone control circuit and the power amplifier that connects along order, the output 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, the utility model portable mobile wireless power amplifier is by the cooperation of above-mentioned each circuit unit, thereby can realize that volume is little, and multi-functional, amplification effect is good, can be convenient to the user and use by alternating current and powered by direct current.
Description of drawings
Fig. 1 is the stereogram of a kind of embodiment of the utility model.
Fig. 2 is circuit theory diagrams of the present utility model shown in Figure 1.
Embodiment
For further understanding feature of the present utility model, technological means and the specific purposes that reached, function, the utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
See also Fig. 1 and Fig. 2, the utility model portable mobile wireless power amplifier comprises power amplifier main body 1, and the circuit of this power amplifier main body 1 is provided with transformer 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 transformer T is electrically connected with interchange input interface AC_in and the on/off switching circuit 9 that connects along order, and the output of described transformer T is electrically connected with current rectifying and wave filtering circuit 10 and the voltage stabilizing circuit 11 that connects along order.
Described charging circuit 5 is electrically connected with the output of described transformer T, and described charging circuit 5 is provided with the rectification circuit 51 that is electrically connected with described transformer T.Described rectification circuit 51 is electrically connected with filter circuit 52, and described filter circuit 52 is electrically connected with voltage stabilizing circuit 53, and described voltage stabilizing circuit 53 is electrically connected with some first charging networks 54, and (E1, E2 E3) are electrically connected described first charging network 54 with rechargeable battery.Described filter circuit 52 is electrically connected with second charging network 55, and described second charging network 55 is electrically connected with storage battery E4.
Be provided with high pass filter 12 between described Mike's preamplifying circuit 2 and the described signal amplification circuit 3.Described Mike's preamplifying circuit 2 be provided with the antenna that connects along order (P1, P2), (VR1, VR2), (VR1 VR2) is electrically connected with described high pass filter 12 described potentiometer for wireless receiving module (21,22) and potentiometer.The output of described wireless receiving module (21,22) is electrically connected with described priority circuit 6.Described Mike's preamplifying circuit 2 also is provided with the Mike's interface (MIC1 that connects along order, MIC2), pre-amplifier (23,24) and potentiometer (VR3, VR4), described potentiometer (VR3, VR4) be electrically connected with described high pass filter 12, the output of described pre-amplifier (23) is electrically connected with described priority circuit 6.
Described Signal Matching circuit 7 is provided with audio input interface AUX, and described audio input interface AUX is electrically connected with matching network 71, and described matching network 71 is electrically connected with potentiometer VR5, and described potentiometer VR5 is electrically connected with signal amplification circuit 3.Described signal amplification circuit 3 is provided with mixing amplifying circuit 31, tone control circuit 32 and the power amplifier 33 that connects along order, the output 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 is electrically connected with described Signal Matching circuit 7; Described Signal Matching circuit 7 is electrically connected with the MP3 signal output part of described MP3 source of sound module 8.Described MP3 source of sound module 8 is connected with recording access REC, and is electrically connected with the recording output signal end of described signal amplification circuit 3.
In sum, the utility model portable mobile wireless power amplifier is by the cooperation of above-mentioned each circuit unit, thereby can realize that volume is little, and multi-functional, amplification effect is good, can be convenient to the user and use by alternating current and powered by direct current.
The above embodiment has only expressed a kind of execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model scope.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with claims.
Claims (9)
1. portable mobile wireless power amplifier, it comprises power amplifier main body (1), the circuit of this power amplifier main body (1) is provided with transformer T, Mike's preamplifying circuit (2), signal amplification circuit (3) and loudspeaker (4), it is characterized in that: also comprise charging circuit (5), priority circuit (6), Signal Matching circuit (7) and MP3 source of sound module (8), described charging circuit (5) is electrically connected with described transformer T, be provided with in the described charging circuit (5) rechargeable battery (E1, E2, E3); The signal input part of described priority circuit (6) is electrically connected with described Mike's preamplifying circuit (2), and the signal output part of described priority circuit (6) is electrically connected with described Signal Matching circuit (7); Described Signal Matching circuit (7) is electrically connected with the 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) is electrically connected with the recording output signal end of described signal amplification circuit (3).
2. portable mobile wireless power amplifier according to claim 1, it is characterized in that: described charging circuit (5) is provided with the rectification circuit (51) that is electrically connected with described transformer T, described rectification circuit (51) is electrically connected with filter circuit (52), described filter circuit (52) is electrically connected with voltage stabilizing circuit (53), described voltage stabilizing circuit (53) is electrically connected with some first charging networks (54), (E1, E2 E3) are electrically connected described first charging network (54) with described rechargeable battery.
3. portable mobile wireless power amplifier according to claim 2 is characterized in that: described filter circuit (52) is electrically connected with second charging network (55), and described second charging network (55) is electrically connected with storage battery E4.
4. portable mobile wireless power amplifier according to claim 3 is characterized in that: be provided with high pass filter (12) between described Mike's preamplifying circuit (2) and the described signal amplification circuit (3).
5. portable mobile wireless power amplifier according to claim 4, it is characterized in that: described Mike's preamplifying circuit (2) is provided with the antenna (P1 that connects along order, P2), the wireless receiving module (21,22) and potentiometer (VR1, VR2), (VR1 VR2) is electrically connected with described high pass filter (12) described potentiometer, the output of described wireless receiving module (21,22) is electrically connected with described priority circuit (6).
6. portable mobile wireless power amplifier according to claim 5, it is characterized in that: described Mike's preamplifying circuit (2) is provided with the Mike's interface (MIC1 that connects along order, MIC2), pre-amplifier (23,24) and potentiometer (VR3, VR4), (VR3 VR4) is electrically connected with described high pass filter (12) described potentiometer, the output of described pre-amplifier (23,24) is electrically connected with described priority circuit (6).
7. portable mobile wireless power amplifier according to claim 6, 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, and described potentiometer VR5 is electrically connected with signal amplification circuit (3).
8. portable mobile wireless power amplifier according to claim 7 is characterized in that: described MP3 source of sound module (8) is connected with recording access REC.
9. portable mobile wireless power amplifier according to claim 8, it is characterized in that: described signal amplification circuit (3) is provided with mixing amplifying circuit (31), tone control circuit (32) and the power amplifier (33) that connects along order, the output 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 |
|---|---|---|---|
| CN2010206932810U CN201928436U (en) | 2010-12-31 | 2010-12-31 | Portable wireless power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206932810U CN201928436U (en) | 2010-12-31 | 2010-12-31 | Portable wireless power amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201928436U true CN201928436U (en) | 2011-08-10 |
Family
ID=44432269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206932810U Expired - Lifetime CN201928436U (en) | 2010-12-31 | 2010-12-31 | Portable wireless power amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201928436U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102065364A (en) * | 2010-12-31 | 2011-05-18 | 东莞精恒电子有限公司 | Portable wireless power amplifier |
| CN107371095A (en) * | 2017-08-25 | 2017-11-21 | 东莞中拓机械技术开发有限公司 | A kind of pulsewidth modulation 350W 600W+150W power amplifier modules |
-
2010
- 2010-12-31 CN CN2010206932810U patent/CN201928436U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102065364A (en) * | 2010-12-31 | 2011-05-18 | 东莞精恒电子有限公司 | Portable wireless power amplifier |
| CN102065364B (en) * | 2010-12-31 | 2016-08-03 | 东莞精恒电子有限公司 | portable wireless power amplifier |
| CN107371095A (en) * | 2017-08-25 | 2017-11-21 | 东莞中拓机械技术开发有限公司 | A kind of pulsewidth modulation 350W 600W+150W power amplifier modules |
| CN107371095B (en) * | 2017-08-25 | 2023-12-22 | 东莞精恒电子有限公司 | Pulse width modulation 350W-600W+150W power amplifier module |
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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: 20110810 Termination date: 20111231 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110810 Effective date of abandoning: 20160803 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |