CN202979264U - Capacitive handheld microphone for singing - Google Patents
Capacitive handheld microphone for singing Download PDFInfo
- Publication number
- CN202979264U CN202979264U CN 201220699661 CN201220699661U CN202979264U CN 202979264 U CN202979264 U CN 202979264U CN 201220699661 CN201220699661 CN 201220699661 CN 201220699661 U CN201220699661 U CN 201220699661U CN 202979264 U CN202979264 U CN 202979264U
- Authority
- CN
- China
- Prior art keywords
- circuit
- signal
- capacitive
- power interface
- sound head
- 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
Images
Abstract
The utility model provides a capacitive handheld microphone for singing. The capacitive handheld microphone for singing comprises a capacitive pickup (1), a high-resistance input circuit (2), an impedance conversion circuit (3), a phantom power interface (4) and a polarized voltage generating circuit (5). A signal input end of the capacitive pickup (1) is connected with a signal input end of the impedance conversion circuit (3). A signal output end of the impedance conversion circuit (3) is connected with a signal input end of the phantom power interface (4). A power output end of the phantom power interface (4) is connected with a power input end of the polarized voltage generating circuit (5). A power output end of the polarized voltage generating circuit (5) is connected with a power input end of the capacitive pickup (1). Picked acoustical signals are converted into electrical signals to be output through the capacitive pickup, and corresponding acoustical signals are acquired after the signals are processed by the high-resistance input circuit and the impedance conversion circuit. The capacitive handheld microphone for singing is effective in frequency response and high in sensitivity.
Description
Technical field
The utility model relates to a kind of audio-frequency signal converter, belongs to the audio frequency apparatus technical field.
Background technology
Existing performance microphone adopts moving coil type microphone more.The frequency response effect of moving-coil sound head is relatively poor, sensitivity is lower.
Summary of the invention
The utility model is the problem that the frequency response effect is relatively poor, sensitivity is lower of the moving-coil sound head of the existing moving coil type microphone existence of solution, and then provides a kind of condenser type hand-held performance microphone.For this reason, the utility model provides following technical scheme:
the hand-held performance microphone of a kind of condenser type, comprise capacitance sound head (1), high impedance input circuit (2), impedance inverter circuit (3), phantom power interface (4) and polarizing voltage produce circuit (5), the signal output part of capacitance sound head (1) is connected with the signal input part of high impedance input circuit (2), the signal output part of high impedance input circuit (2) is connected with the signal input part of impedance inverter circuit (3), the signal output part of impedance inverter circuit (3) is connected with the signal input part of phantom power interface (4), the power output end of phantom power interface (4) is connected with the power input that polarizing voltage produces circuit (5), the power output end that polarizing voltage produces circuit (5) is connected with the power input of capacitance sound head (1).
The utility model provides a kind of audio-frequency signal converter, convert the audio signal of picking up to signal of telecommunication output by capacitance sound head, and obtain corresponding voice signal after processing by high impedance input circuit and impedance inverter circuit, and having frequency response effect preferably, the sensitivity of microphone is higher.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, during the below will describe embodiment, the accompanying drawing of required use is done to introduce simply, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the hand-held performance microphone of condenser type that provides of embodiment of the present utility model;
Fig. 2 is the structural representation of the high impedance input circuit that provides of embodiment of the present utility model;
Fig. 3 is the structural representation of the impedance inverter circuit that provides of embodiment of the present utility model;
Fig. 4 is the structural representation that the polarizing voltage that provides of embodiment of the present utility model produces circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
this embodiment provides a kind of condenser type hand-held performance microphone, as shown in Figure 1, comprise capacitance sound head (1), high impedance input circuit (2), impedance inverter circuit (3), phantom power interface (4) and polarizing voltage produce circuit (5), the signal output part of capacitance sound head (1) is connected with the signal input part of high impedance input circuit (2), the signal output part of high impedance input circuit (2) is connected with the signal input part of impedance inverter circuit (3), the signal output part of impedance inverter circuit (3) is connected with the signal input part of phantom power interface (4), the power output end of phantom power interface (4) is connected with the power input that polarizing voltage produces circuit (5), the power output end that polarizing voltage produces circuit (5) is connected with the power input of capacitance sound head (1).
Concrete, the circuit structure of high impedance input circuit (2) is comprised of the 11 triode Q11, the first resistance R 1, the second resistance R 2, the 6th resistance R 6, the 7th resistance R 7 and the 8th resistance R 8 as shown in Figure 2, is used for coordinating capacitance sound head (1) work.The circuit structure of impedance inverter circuit (3) as shown in Figure 3, formed by the first triode Q1, the 3rd triode Q3, the 9th resistance R 9, the 11 resistance R 11, the 3rd resistance R 3, the 4th resistance R 4, the first diode D1 and the second diode D2, be used for to coordinate the words of the rear class work of knocking off.The circuit structure of polarizing voltage generation circuit (5) is used to capacitance sound head (1) that operating voltage is provided as shown in Figure 4.Phantom power interface (4) is used for providing the 48V direct voltage.
the course of work of the audio-frequency signal converter that this embodiment provides comprises: capacitance sound head 1 is used for converting voice signal to the signal of telecommunication and output, through the 5th capacitor C 5 couplings, grid to the 11 triode Q11, the first resistance R 1, the second resistance R 2, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8 is biasing resistors of the 11 triode Q11, source electrode and a pair of balanced signal of drain electrode output from the 11 triode Q11, through the first triode Q1, the 3rd triode Q3, the 9th resistance R 9, the 11 resistance R 11, the impedance inverter circuit 3 that the 3rd resistance R 3 and the 4th resistance R 4 form, the impedance of electronic signal is dropped to below 200 Europe and from CANNON export.Form a LC oscillating circuit and a voltage doubling rectifing circuit provides operating voltage for capacitance sound head 1 by the 6th triode Q6, the 13 resistance R 13, the 14 capacitor C 14, the 8th capacitor C 8, the 4th capacitor C 4, the first inductance L 1, the second inductance L 2, the 3rd diode D3 and the 4th diode D4.
The audio-frequency signal converter that adopts this embodiment to provide, convert the audio signal of picking up to signal of telecommunication output by capacitance sound head, and obtain corresponding voice signal after processing by high impedance input circuit and impedance inverter circuit, and having frequency response effect preferably, the sensitivity of microphone is higher.
The above; it is only the better embodiment of the utility model; but protection range of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model embodiment discloses; the variation that can expect easily or replacement are within all should being encompassed in protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claim.
Claims (3)
1. hand-held performance microphone of condenser type, it is characterized in that, comprise capacitance sound head (1), high impedance input circuit (2), impedance inverter circuit (3), phantom power interface (4) and polarizing voltage produce circuit (5), the signal output part of capacitance sound head (1) is connected with the signal input part of high impedance input circuit (2), the signal output part of high impedance input circuit (2) is connected with the signal input part of impedance inverter circuit (3), the signal output part of impedance inverter circuit (3) is connected with the signal input part of phantom power interface (4), the power output end of phantom power interface (4) is connected with the power input that polarizing voltage produces circuit (5), the power output end that polarizing voltage produces circuit (5) is connected with the power input of capacitance sound head (1).
2. the hand-held performance microphone of condenser type according to claim 1, is characterized in that, phantom power interface (4) is used for providing the 48V direct voltage.
3. the hand-held performance microphone of condenser type according to claim 1, is characterized in that, capacitance sound head (1) is used for converting voice signal to the signal of telecommunication and output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220699661 CN202979264U (en) | 2012-12-17 | 2012-12-17 | Capacitive handheld microphone for singing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220699661 CN202979264U (en) | 2012-12-17 | 2012-12-17 | Capacitive handheld microphone for singing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202979264U true CN202979264U (en) | 2013-06-05 |
Family
ID=48520280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220699661 Expired - Fee Related CN202979264U (en) | 2012-12-17 | 2012-12-17 | Capacitive handheld microphone for singing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202979264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114786112A (en) * | 2022-06-22 | 2022-07-22 | 广州市保伦电子有限公司 | Equipment detection device of external phantom power supply simulation microphone |
-
2012
- 2012-12-17 CN CN 201220699661 patent/CN202979264U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114786112A (en) * | 2022-06-22 | 2022-07-22 | 广州市保伦电子有限公司 | Equipment detection device of external phantom power supply simulation microphone |
| CN114786112B (en) * | 2022-06-22 | 2022-10-11 | 广州市保伦电子有限公司 | Equipment detection device of external phantom power supply simulation microphone |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102354883B (en) | Audio signal transfer device | |
| CN202979264U (en) | Capacitive handheld microphone for singing | |
| CN204465850U (en) | A kind of Anti-interference earphone circuit | |
| CN204258785U (en) | A kind of multifrequency resonance transmission circuit for array induction logging tool | |
| CN204168261U (en) | 1KHz audio signal generator | |
| CN104682892A (en) | Audio frequency amplifier used for computer speakers | |
| CN203734825U (en) | Audio signal processing circuit and audio playing device | |
| CN203193881U (en) | Electret microphone protection circuit | |
| CN104754479A (en) | Wireless microphone for office meetings | |
| CN104300926A (en) | Audio power amplifier used for multimedia electronic equipment | |
| CN204887472U (en) | Hang portable multi -functional public -address amplifier | |
| CN205105359U (en) | Cylindricality contact microphone | |
| CN201518533U (en) | Wireless microphone | |
| CN204929165U (en) | Wireless microphone is used in teaching | |
| CN204244100U (en) | A kind of power circuit for active audio amplifier power amplifier | |
| CN204031391U (en) | The chargeable tuning microphone of a kind of Campatible | |
| CN204014033U (en) | A kind of computer wireless microphone circuit | |
| CN204009411U (en) | Integrated two-sided control circuit board for USB speaker wire rod with bluetooth and power amplifier | |
| CN104602161A (en) | High-voice-definition microphone for use in teaching | |
| CN207720394U (en) | A kind of processing circuit suitable for voice pickup microphone | |
| CN204244465U (en) | The wireless microphone circuit of a kind of energy change of voice | |
| CN103854683A (en) | Audio collecting device applied to interactive teaching system | |
| CN204206116U (en) | A kind of audio-frequency power amplifier for multimedia electronic equipment | |
| CN101998207A (en) | Voice input device | |
| CN217770362U (en) | Electret microphone and acoustic system |
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: 20130605 Termination date: 20131217 |