CN106060687B - Multi-mode microphone power supply system - Google Patents
Multi-mode microphone power supply system Download PDFInfo
- Publication number
- CN106060687B CN106060687B CN201610405863.6A CN201610405863A CN106060687B CN 106060687 B CN106060687 B CN 106060687B CN 201610405863 A CN201610405863 A CN 201610405863A CN 106060687 B CN106060687 B CN 106060687B
- Authority
- CN
- China
- Prior art keywords
- power supply
- control signal
- voltage
- mos tube
- signal
- 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.)
- Active
Links
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
- Electronic Switches (AREA)
Abstract
The present disclosure relates to power systems, and particularly to a power system for a multi-mode microphone. The invention can provide various power supply modes for the microphone, can enable the microphone to provide various power supply modes in the low frequency band, is convenient for providing larger power when a user adjusts the volume, and is convenient for realizing the maximization of the power in the low frequency band.
Description
Technical Field
The present disclosure relates to power systems, and particularly to a power system for a multi-mode microphone.
Background
The existing power supply system of the microphone adopts a single power supply mode, especially in a low frequency band, if a user adjusts the volume output by the microphone, the output power of the microphone cannot be effectively utilized in the low frequency band due to the limitation of the power supply mode, and the service time of a high frequency band is less, even if higher effective power can be achieved, but the utilization rate is not high, so that the effective power of the low frequency band becomes critical.
Disclosure of Invention
Aiming at the problems existing in the prior art, a multi-mode microphone power supply system is provided.
The specific technical scheme is as follows:
A multimode microphone power supply system for low frequency power supply, comprising:
the acquisition module is used for acquiring the adjusting signals of the user;
The comparison circuit is connected with the acquisition module and used for comparing the adjusting signal with a standard signal and outputting a first control signal and a second control signal;
The first switch circuit is respectively connected with an input end and a voltage output end of a first voltage, and is connected with the first control signal;
and the second switch circuit is respectively connected with the input end and the voltage output end of the second voltage, and is connected with the second control signal.
Preferably, the comparison circuit includes:
the first input end of the first comparator is connected with the adjusting signal, and the second input end of the first comparator is connected with the standard signal.
Preferably, the comparison circuit further includes:
And the first input end of the second comparator is connected with the regulating signal, and the second input end of the second comparator is connected with the standard signal.
Preferably, the first switching circuit includes:
The source electrode or the drain electrode of the first MOS tube is connected with the input end of the first voltage, the grid electrode of the first MOS tube is connected with the first control signal, and the source electrode or the drain electrode of the first MOS tube is connected with the voltage output end.
Preferably, the first switching circuit further includes:
the grid electrode of the second MOS tube is connected with the first control signal, and the source electrode or the drain electrode of the second MOS tube is respectively connected with the voltage output end and the source electrode or the drain electrode of the first MOS tube.
Preferably, the second switching circuit includes:
The source electrode or the drain electrode of the third MOS tube is connected with the input end of the second voltage, the grid electrode of the third MOS tube is connected with the second control signal, and the source electrode or the drain electrode of the third MOS tube is connected with the voltage output end.
Preferably, the second switching circuit further includes:
And the grid electrode of the fourth MOS tube is connected with the second control signal, and the drain electrode or the source electrode of the fourth MOS tube is respectively connected with the voltage output end and the source electrode or the drain electrode of the third MOS tube.
Preferably, the first voltage is 4.2V.
Preferably, the second voltage is 9.6V.
Preferably, the input end of the first voltage is connected with the input end of the second voltage through a boost circuit.
The beneficial effects of the technical scheme are as follows:
the technical scheme can provide various power supply modes for the microphone, can enable the microphone to provide various power supply modes in the low frequency band, is convenient for providing larger power when a user adjusts the volume, and is convenient for realizing the power maximization of the low frequency band.
Drawings
FIG. 1 is a schematic diagram of a multi-mode microphone power supply system according to an embodiment of the present invention;
Fig. 2 is a schematic diagram illustrating connection of a multimode microphone power supply circuit according to an embodiment of the invention.
Detailed Description
It should be noted that, under the condition of no conflict, the following technical schemes and technical features can be mutually combined.
The following describes the embodiments of the present invention further with reference to the accompanying drawings:
The embodiment provides a multimode microphone power supply system, which is applied to low-frequency power supply, as shown in fig. 1, and includes:
the acquisition module 1 is used for acquiring an adjusting signal of a user;
The comparison circuit 2 is connected with the acquisition module 1 and is used for comparing the adjusting signal with a standard signal and outputting a first control signal and a second control signal;
the first switch circuit 3 is respectively connected with an input end IN1 of a first voltage Vbat and a voltage output end Vout, and the first switch circuit 3 is connected with a first control signal;
The second switch circuit 4 is connected to the input terminal IN2 and the voltage output terminal Vout of the second voltage Vboost, and the second switch circuit 4 is connected to the second control signal.
In this embodiment, the first switch circuit 3 or the second switch circuit 4 may be controlled to output voltage by the first control signal and the second control signal, specifically, in this embodiment, the user adjusts the volume of the microphone, the acquisition module 1 acquires the adjustment signal adjusted by the user, the comparison circuit 2 may compare the adjustment signal with the standard signal, for example, the adjusted volume, that is, the adjustment signal is greater than the standard signal, the first control signal may be at a high level, the second control signal may be at a low level, the first switch circuit 3 is turned on, the second switch circuit 4 is turned off, and conversely, if the adjustment signal is less than the standard signal, the first control signal is at a low level, the second control signal may be at a high level, and the second voltage Vboost of the second switch circuit 4 supplies power to the microphone.
In a preferred embodiment of the present invention, as shown in fig. 2, the comparison circuit 2 includes:
The first input end of the first comparator 21 is connected with the adjusting signal, and the second input end of the first comparator 21 is connected with the standard signal.
In a preferred embodiment of the present invention, as shown in fig. 2, the comparison circuit 2 further includes:
The first input end of the second comparator 22 is connected with the adjusting signal, and the second input end of the second comparator 22 is connected with the standard signal.
In a preferred embodiment of the present invention, as shown in fig. 2, the first switching circuit 3 includes:
The first MOS transistor Q1, the source electrode or the drain electrode of the first MOS transistor Q1 is connected with the input end IN1 of the first voltage Vbat, the grid electrode of the first MOS transistor Q1 is connected with the first control signal, and the source electrode or the drain electrode of the first MOS transistor Q1 is connected with the voltage output end Vout.
In a preferred embodiment of the present invention, as shown in fig. 2, the first switching circuit 3 further includes:
The grid electrode of the second MOS tube Q2 is connected with the first control signal, and the source electrode or the drain electrode of the second MOS tube Q2 is respectively connected with the voltage output end Vout and the source electrode or the drain electrode of the first MOS tube Q1.
In a preferred embodiment of the invention, as shown in fig. 2, the second switching circuit 4 comprises:
and the source electrode or the drain electrode of the third MOS tube Q3 is connected with the input end IN2 of the second voltage Vboost, the grid electrode of the third MOS tube Q3 is connected with a second control signal, and the source electrode or the drain electrode of the third MOS tube Q3 is connected with the voltage output end Vout.
In a preferred embodiment of the present invention, as shown in fig. 2, the second switching circuit 4 further includes:
The grid electrode of the fourth MOS tube Q4 is connected with a second control signal, and the drain electrode or the source electrode of the fourth MOS tube Q4 is respectively connected with the voltage output end Vout and the source electrode or the drain electrode of the third MOS tube Q3.
In a preferred embodiment of the invention, the first voltage Vbat is 4.2V.
In a preferred embodiment of the invention, the second voltage Vboost is 9.6V.
IN a preferred embodiment of the present invention, the input terminal IN1 of the first voltage Vbat is connected to the input terminal IN2 of the second voltage Vboost through a boost circuit.
In the above embodiment, if the adjustment signal is greater than the standard signal, the first comparator outputs the first control signal, the first control signal can control the conduction of the third MOS transistor and the fourth MOS transistor, the second control signal can control the cut-off of the first MOS transistor and the second MOS transistor, and the first voltage supplies power, and conversely, if the adjustment signal is less than the standard signal, the second voltage supplies power.
In summary, the above embodiment can provide multiple power supply modes for the microphone, so that the microphone can provide multiple power supply modes in the low frequency band, which is convenient for providing larger power when the user adjusts the volume, and is convenient for realizing the power maximization of the low frequency band.
By way of illustration and the accompanying drawings, there is shown exemplary examples of specific structures of the embodiments and other variations may be made based on the spirit of the invention. While the above invention is directed to the presently preferred embodiments, such disclosure is not intended to be limiting.
Various alterations and modifications will no doubt become apparent to those skilled in the art after having read the above description. Therefore, the appended claims should be construed to cover all such variations and modifications as fall within the true spirit and scope of the invention. Any and all equivalents and alternatives falling within the scope of the claims are intended to be embraced therein.
Claims (10)
1. A multi-mode microphone power supply system for use in low frequency power supply, comprising:
the acquisition module is used for acquiring the adjusting signals of the user;
The comparison circuit is connected with the acquisition module and used for comparing the adjusting signal with a standard signal and outputting a first control signal and a second control signal;
The first switch circuit is respectively connected with an input end and a voltage output end of a first voltage, and is connected with the first control signal;
the second switch circuit is respectively connected with the input end of the second voltage and the voltage output end, and is connected with the second control signal;
the adjusting signal is larger than the standard signal, the first control signal is in a high level, the second control signal is in a low level, the first switch circuit is turned on, and the second switch circuit is turned off;
the adjusting signal is smaller than the standard signal, the first control signal is in a low level, the second control signal is in a high level, and the second voltage Vboost of the second switch circuit supplies power to the microphone;
The adjustment signal is a volume signal.
2. The multi-mode microphone power supply system of claim 1, wherein the comparison circuit comprises:
the first input end of the first comparator is connected with the adjusting signal, and the second input end of the first comparator is connected with the standard signal.
3. The multi-mode microphone power supply system of claim 2, wherein the comparison circuit further comprises:
And the first input end of the second comparator is connected with the regulating signal, and the second input end of the second comparator is connected with the standard signal.
4. The multi-mode microphone power supply system of claim 1, wherein the first switching circuit comprises:
The source electrode or the drain electrode of the first MOS tube is connected with the input end of the first voltage, the grid electrode of the first MOS tube is connected with the first control signal, and the source electrode or the drain electrode of the first MOS tube is connected with the voltage output end.
5. The multi-mode microphone power supply system of claim 4, wherein the first switching circuit further comprises:
the grid electrode of the second MOS tube is connected with the first control signal, and the source electrode or the drain electrode of the second MOS tube is respectively connected with the voltage output end and the source electrode or the drain electrode of the first MOS tube.
6. The multi-mode microphone power supply system of claim 1, wherein the second switching circuit comprises:
The source electrode or the drain electrode of the third MOS tube is connected with the input end of the second voltage, the grid electrode of the third MOS tube is connected with the second control signal, and the source electrode or the drain electrode of the third MOS tube is connected with the voltage output end.
7. The multi-mode microphone power supply system of claim 6, wherein the second switching circuit further comprises:
And the grid electrode of the fourth MOS tube is connected with the second control signal, and the drain electrode or the source electrode of the fourth MOS tube is respectively connected with the voltage output end and the source electrode or the drain electrode of the third MOS tube.
8. The multi-mode microphone power supply system of claim 1, wherein the first voltage is 4.2V.
9. The multi-mode microphone power supply system of claim 1, wherein the second voltage is 9.6V.
10. The multi-mode microphone power supply system of claim 1, wherein the input of the first voltage is coupled to the input of the second voltage through a boost circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610405863.6A CN106060687B (en) | 2016-06-08 | 2016-06-08 | Multi-mode microphone power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610405863.6A CN106060687B (en) | 2016-06-08 | 2016-06-08 | Multi-mode microphone power supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106060687A CN106060687A (en) | 2016-10-26 |
| CN106060687B true CN106060687B (en) | 2024-05-17 |
Family
ID=57169812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610405863.6A Active CN106060687B (en) | 2016-06-08 | 2016-06-08 | Multi-mode microphone power supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106060687B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4985910A (en) * | 1989-09-15 | 1991-01-15 | Mars Incorporated | Method and apparatus for retrofitting a standard coin operated telephone employing a carbon microphone with a line powered electronic controller |
| JP2004023360A (en) * | 2002-06-14 | 2004-01-22 | Matsushita Electric Ind Co Ltd | Voltage comparator |
| CN102349226A (en) * | 2009-03-13 | 2012-02-08 | 皇家飞利浦电子股份有限公司 | Supply circuit for supplying a switch circuit |
| CN102457047A (en) * | 2010-10-18 | 2012-05-16 | 台达电子工业股份有限公司 | Power supply and power supply system with multiple power supplies |
| CN202276319U (en) * | 2011-11-03 | 2012-06-13 | 深圳创维－Rgb电子有限公司 | Digital audio power amplification power supply circuit |
| CN103516043A (en) * | 2012-06-26 | 2014-01-15 | 华为技术有限公司 | Power switching control signal generation circuit, and system method for dual-power redundancy power supplying |
| CN203554749U (en) * | 2013-09-28 | 2014-04-16 | 李世宗 | Illumination system switched between solar energy power supply and commercial power |
| CN204131785U (en) * | 2014-09-18 | 2015-01-28 | 何祥喜 | A kind of biswitch formula alternating current-direct current automatic switchover double-purpose Intelligent lightening device |
| CN104754484A (en) * | 2013-12-27 | 2015-07-01 | Gn瑞声达A/S | Hearing instrument with switchable power supply voltage |
| CN204650760U (en) * | 2015-06-04 | 2015-09-16 | 交通运输部科学研究院 | A kind of wireless geomagnetism vehicle checker adopting interval conversion power supply pattern |
| CN204832485U (en) * | 2015-08-03 | 2015-12-02 | 国家电网公司 | A frequency conversion electron source for 750kV level CVT on -site proving system |
| CN205017583U (en) * | 2015-09-30 | 2016-02-03 | 深圳市芯易邦电子有限公司 | Microphone circuit, microphone circuit board and microphone |
| CN206061040U (en) * | 2016-06-08 | 2017-03-29 | 钰太芯微电子科技（上海）有限公司 | A kind of multimodal microphone power system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090256534A1 (en) * | 2008-04-14 | 2009-10-15 | Twisthink, L.L.C. | Power supply control method and apparatus |
| TWI455470B (en) * | 2011-12-30 | 2014-10-01 | Nat Univ Tsing Hua | Two - stage isolated DC / AC conversion circuit architecture |
-
2016
- 2016-06-08 CN CN201610405863.6A patent/CN106060687B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4985910A (en) * | 1989-09-15 | 1991-01-15 | Mars Incorporated | Method and apparatus for retrofitting a standard coin operated telephone employing a carbon microphone with a line powered electronic controller |
| JP2004023360A (en) * | 2002-06-14 | 2004-01-22 | Matsushita Electric Ind Co Ltd | Voltage comparator |
| CN102349226A (en) * | 2009-03-13 | 2012-02-08 | 皇家飞利浦电子股份有限公司 | Supply circuit for supplying a switch circuit |
| CN102457047A (en) * | 2010-10-18 | 2012-05-16 | 台达电子工业股份有限公司 | Power supply and power supply system with multiple power supplies |
| CN202276319U (en) * | 2011-11-03 | 2012-06-13 | 深圳创维－Rgb电子有限公司 | Digital audio power amplification power supply circuit |
| CN103516043A (en) * | 2012-06-26 | 2014-01-15 | 华为技术有限公司 | Power switching control signal generation circuit, and system method for dual-power redundancy power supplying |
| CN203554749U (en) * | 2013-09-28 | 2014-04-16 | 李世宗 | Illumination system switched between solar energy power supply and commercial power |
| CN104754484A (en) * | 2013-12-27 | 2015-07-01 | Gn瑞声达A/S | Hearing instrument with switchable power supply voltage |
| CN204131785U (en) * | 2014-09-18 | 2015-01-28 | 何祥喜 | A kind of biswitch formula alternating current-direct current automatic switchover double-purpose Intelligent lightening device |
| CN204650760U (en) * | 2015-06-04 | 2015-09-16 | 交通运输部科学研究院 | A kind of wireless geomagnetism vehicle checker adopting interval conversion power supply pattern |
| CN204832485U (en) * | 2015-08-03 | 2015-12-02 | 国家电网公司 | A frequency conversion electron source for 750kV level CVT on -site proving system |
| CN205017583U (en) * | 2015-09-30 | 2016-02-03 | 深圳市芯易邦电子有限公司 | Microphone circuit, microphone circuit board and microphone |
| CN206061040U (en) * | 2016-06-08 | 2017-03-29 | 钰太芯微电子科技（上海）有限公司 | A kind of multimodal microphone power system |
Non-Patent Citations (1)
| Title |
|---|
| 提升MEMS麦克风灵敏度的设计方法;周建民;《集成电路应用》;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106060687A (en) | 2016-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7746044B2 (en) | Power supply system for motherboard | |
| US20170185125A1 (en) | Electronic device | |
| JP6360560B2 (en) | Intrinsic comparator delay for output clamping circuit | |
| US9736566B2 (en) | Earphone line control device and earphone | |
| WO2009091474A8 (en) | Hybrid on-chip regulator for limited output high voltage | |
| KR101599203B1 (en) | Earphone and method for realizing automatic recognition switching control of earphone | |
| US8854025B2 (en) | Switching power supply | |
| CN110428039B (en) | Programmable control radio frequency power amplifier power supply module | |
| KR20170101140A (en) | Switching regulator | |
| CN104410395A (en) | Overvoltage protection circuit and method for transistor switch | |
| TWI475361B (en) | Current distribution system, current distribution method, and computer system thereof | |
| CN102354242A (en) | Power control circuit | |
| CN104682702B (en) | Power circuit and electronic product | |
| CN106060687B (en) | Multi-mode microphone power supply system | |
| US10224925B2 (en) | Communication node | |
| US9671808B2 (en) | Circuit and method for controlling standyby power consumption | |
| US9741503B2 (en) | Control circuit of switch device | |
| CN107844186B (en) | Power supply system | |
| KR101574300B1 (en) | Buck converter | |
| CN204376858U (en) | Overvoltage protection circuit for transistor switch | |
| CN103139689A (en) | Device and method for eliminating popping sound of earphone | |
| US9887682B2 (en) | Regulating circuit and optimizing circuit | |
| US10686414B2 (en) | Load-adaptive class-G amplifier for low-power audio applications | |
| US20160276930A1 (en) | Dc power supply control system and circuit | |
| US20130322664A1 (en) | Noise elimination circuit for audio equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |