CN204206394U - A kind of wireless microphone of reliable operation - Google Patents
A kind of wireless microphone of reliable operation Download PDFInfo
- Publication number
- CN204206394U CN204206394U CN201420638249.0U CN201420638249U CN204206394U CN 204206394 U CN204206394 U CN 204206394U CN 201420638249 U CN201420638249 U CN 201420638249U CN 204206394 U CN204206394 U CN 204206394U
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- electric capacity
- resistance
- triode
- inductance
- wireless microphone
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Abstract
The utility model discloses a kind of wireless microphone of reliable operation, comprise power supply, integrated regulator, first electric capacity, second electric capacity, 3rd electric capacity, 4th electric capacity, 5th electric capacity, 6th electric capacity, 7th electric capacity, 8th electric capacity, first resistance, second resistance, 3rd resistance, 4th resistance, 5th resistance, 6th resistance, antenna, first inductance, second inductance, first triode, second triode and Electret condenser microphone, first inductance, second inductance, 3rd electric capacity, 4th electric capacity, 5th electric capacity, 6th electric capacity, 7th electric capacity, second resistance, 3rd resistance and the first triode composition high-frequency oscillating circuits produce oscillator signal, audio signal carries out amplitude modulation(PAM) to oscillator signal, signal after amplitude modulation is gone out through antenna transmission.First electric capacity, the second electric capacity, integrated regulator and the first resistance composition voltage stabilizing circuit in the utility model, ensure that this wireless microphone steady operation, this wireless microphone also has the feature that structure is simple and power consumption is low.
Description
Technical field
The utility model relates to a kind of wireless microphone, particularly relates to a kind of wireless microphone of reliable operation.
Background technology
Wireless microphone is widely used in every field, also be one of indispensable equipment in amusement equipment, the radio wave of wireless microphone can be propagated at space free, if frequency of utilization overlap is intersected, not constraint and regulation, inevitably produces interference mutually, affect normal communication, therefore have a unified regulation to the use of radio frequency in the world, making influencing each other of their time reach minimum, easily there is the situation of job insecurity in traditional wireless microphone.
Utility model content
The purpose of this utility model is just the wireless microphone providing a kind of reliable operation in order to solve the problem.
In order to achieve the above object, the utility model have employed following technical scheme:
A wireless microphone for reliable operation, comprises power supply, integrated regulator, first electric capacity, second electric capacity, 3rd electric capacity, 4th electric capacity, 5th electric capacity, 6th electric capacity, 7th electric capacity, 8th electric capacity, first resistance, second resistance, 3rd resistance, 4th resistance, 5th resistance, 6th resistance, antenna, first inductance, second inductance, first triode, second triode and Electret condenser microphone, the positive pole of described power supply is connected with the input of described integrated regulator and the first end of described first electric capacity respectively, the output of described integrated regulator respectively with the first end of described first resistance, the first end of described first inductance, the first end of described second resistance, the first end of described 3rd resistance, the first end of described 4th resistance is connected with the first end of described 6th resistance, the earth terminal of described integrated regulator respectively with the second end of described first electric capacity, the first end of described Electret condenser microphone, the first end of described second electric capacity, the first end of described second inductance, the emitter of described second triode, ground connection after the first end of described 5th electric capacity is connected with the first end of described 6th electric capacity, the second end of described first resistance is connected with the second end of described second electric capacity, the second end of described first inductance respectively with the signal transmitting terminal of described antenna, the first end of described 3rd electric capacity, the first end of described 4th electric capacity is connected with the collector electrode of described first triode, the second end of described 3rd electric capacity respectively with the second end of described second inductance, the emitter of described first triode is connected with the second end of described 5th electric capacity, and the second end of described second resistance is connected with the second end of described 4th electric capacity, the base stage of described first triode respectively with the second end of described 6th electric capacity, the first end of described 7th electric capacity is connected with the second end of described 3rd resistance, the second end of described 7th electric capacity respectively with the collector electrode of described second triode, second end of described 4th resistance is connected with the first end of described 5th resistance, second end of described 5th resistance is connected with the base stage of described second triode and the first end of described 8th electric capacity respectively, and the second end of described 8th electric capacity is connected with the second end of described Electret condenser microphone and the second end of described 6th resistance respectively.
In said structure, first electric capacity, the second electric capacity, integrated regulator and the first resistance composition voltage stabilizing circuit, first inductance, the second inductance, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, the second resistance, the 3rd resistance and the first triode composition high-frequency oscillating circuits, send oscillator signal, audio signal carries out amplitude modulation(PAM) to oscillator signal, ensure that this wireless microphone steady operation.
The beneficial effects of the utility model are:
The utility model is a kind of wireless microphone of reliable operation, first electric capacity, the second electric capacity, integrated regulator and the first resistance composition voltage stabilizing circuit in this wireless microphone, first inductance, the second inductance, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, the second resistance, the 3rd resistance and the first triode composition high-frequency oscillating circuits, send oscillator signal, audio signal carries out amplitude modulation(PAM) to oscillator signal, ensure that this wireless microphone steady operation.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the wireless microphone of a kind of reliable operation of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, the wireless microphone of a kind of reliable operation of the utility model, comprises power supply, integrated regulator IC, first electric capacity C1, second electric capacity C2, 3rd electric capacity C3, 4th electric capacity C4, 5th electric capacity C5, 6th electric capacity C6, 7th electric capacity C7, 8th electric capacity C8, first resistance R1, second resistance R2, 3rd resistance R3, 4th resistance R4, 5th resistance R5, 6th resistance R6, antenna Y, first inductance L 1, second inductance L 2, first triode VT1, second triode VT2 and Electret condenser microphone MIC, the positive pole of power supply is connected with the input of integrated regulator IC and the first end of the first electric capacity C1 respectively, the output of integrated regulator IC respectively with the first end of the first resistance R1, the first end of the first inductance L 1, the first end of the second resistance R2, the first end of the 3rd resistance R3, the first end of the 4th resistance R4 is connected with the first end of the 6th resistance R6, the earth terminal of integrated regulator IC respectively with second end of the first electric capacity C1, the first end of Electret condenser microphone MIC, the first end of the second electric capacity C2, the first end of the second inductance L 2, the emitter of the second triode VT2, ground connection after the first end of the 5th electric capacity C5 is connected with the first end of the 6th electric capacity C6, second end of the first resistance R1 is connected with second end of the second electric capacity C2, the second end of the first inductance L 1 respectively with the signal transmitting terminal of antenna Y, the first end of the 3rd electric capacity C3, the first end of the 4th electric capacity C4 is connected with the collector electrode of the first triode VT1, second end of the 3rd electric capacity C3 respectively with the second end of the second inductance L 2, the emitter of the first triode VT1 is connected with second end of the 5th electric capacity C5, and second end of the second resistance R2 is connected with second end of the 4th electric capacity C4, the base stage of the first triode VT1 respectively with second end of the 6th electric capacity C6, the first end of the 7th electric capacity C7 is connected with second end of the 3rd resistance R3, second end of the 7th electric capacity C7 respectively with the collector electrode of the second triode VT2, second end of the 4th resistance R4 is connected with the first end of the 5th resistance R5, second end of the 5th resistance R5 is connected with the base stage of the second triode VT2 and the first end of the 8th electric capacity C8 respectively, and second end of the 8th electric capacity C8 is connected with second end of Electret condenser microphone MIC and second end of the 6th resistance R6 respectively.
Operation principle of the present utility model is as follows:
4th resistance R4, 5th resistance R5, 6th resistance R6, 8th electric capacity C8 and the second triode VT2 forms audio amplifier circuit, first inductance L 1, second inductance L 2, 3rd electric capacity C3, 4th electric capacity C4, 5th electric capacity C5, 6th electric capacity C6, 7th electric capacity C7, second resistance R2, 3rd resistance R3 and the first triode VT1 forms high-frequency oscillating circuits, first electric capacity C1, second electric capacity C2, integrated regulator IC and the first resistance R1 forms voltage stabilizing circuit, audio signal enters the base stage of the second triode VT2 by Electret condenser microphone MIC, audio signal after the second triode VT2 amplifies is coupled to the base stage of the first triode VT1 in high-frequency oscillating circuits through the 7th electric capacity C7, audio signal carries out amplitude modulation(PAM) to oscillator signal, signal after amplitude modulation is launched through antenna Y.
Claims (1)
1. a wireless microphone for reliable operation, is characterized in that: comprise power supply, integrated regulator, first electric capacity, second electric capacity, 3rd electric capacity, 4th electric capacity, 5th electric capacity, 6th electric capacity, 7th electric capacity, 8th electric capacity, first resistance, second resistance, 3rd resistance, 4th resistance, 5th resistance, 6th resistance, antenna, first inductance, second inductance, first triode, second triode and Electret condenser microphone, the positive pole of described power supply is connected with the input of described integrated regulator and the first end of described first electric capacity respectively, the output of described integrated regulator respectively with the first end of described first resistance, the first end of described first inductance, the first end of described second resistance, the first end of described 3rd resistance, the first end of described 4th resistance is connected with the first end of described 6th resistance, the earth terminal of described integrated regulator respectively with the second end of described first electric capacity, the first end of described Electret condenser microphone, the first end of described second electric capacity, the first end of described second inductance, the emitter of described second triode, ground connection after the first end of described 5th electric capacity is connected with the first end of described 6th electric capacity, the second end of described first resistance is connected with the second end of described second electric capacity, the second end of described first inductance respectively with the signal transmitting terminal of described antenna, the first end of described 3rd electric capacity, the first end of described 4th electric capacity is connected with the collector electrode of described first triode, the second end of described 3rd electric capacity respectively with the second end of described second inductance, the emitter of described first triode is connected with the second end of described 5th electric capacity, and the second end of described second resistance is connected with the second end of described 4th electric capacity, the base stage of described first triode respectively with the second end of described 6th electric capacity, the first end of described 7th electric capacity is connected with the second end of described 3rd resistance, the second end of described 7th electric capacity respectively with the collector electrode of described second triode, second end of described 4th resistance is connected with the first end of described 5th resistance, second end of described 5th resistance is connected with the base stage of described second triode and the first end of described 8th electric capacity respectively, and the second end of described 8th electric capacity is connected with the second end of described Electret condenser microphone and the second end of described 6th resistance respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420638249.0U CN204206394U (en) | 2014-10-30 | 2014-10-30 | A kind of wireless microphone of reliable operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420638249.0U CN204206394U (en) | 2014-10-30 | 2014-10-30 | A kind of wireless microphone of reliable operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204206394U true CN204206394U (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420638249.0U Expired - Fee Related CN204206394U (en) | 2014-10-30 | 2014-10-30 | A kind of wireless microphone of reliable operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204206394U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111343562A (en) * | 2020-03-31 | 2020-06-26 | 郑州工程技术学院 | Music audio signal calibration system |
-
2014
- 2014-10-30 CN CN201420638249.0U patent/CN204206394U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111343562A (en) * | 2020-03-31 | 2020-06-26 | 郑州工程技术学院 | Music audio signal calibration system |
| CN111343562B (en) * | 2020-03-31 | 2021-09-10 | 郑州工程技术学院 | Music audio signal calibration system |
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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: 20150311 Termination date: 20151030 |
|
| EXPY | Termination of patent right or utility model |