CN204795567U - Cell -phone audio interface communication equipment - Google Patents
Cell -phone audio interface communication equipment Download PDFInfo
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- CN204795567U CN204795567U CN201520443913.0U CN201520443913U CN204795567U CN 204795567 U CN204795567 U CN 204795567U CN 201520443913 U CN201520443913 U CN 201520443913U CN 204795567 U CN204795567 U CN 204795567U
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Abstract
The utility model relates to the field of communication technology, the utility model provides a cell -phone audio interface communication equipment contains audio interface, power control module, power and functional circuit module, wherein audio interface contains a microphone pin and a GND pin, power control module contains a rectifier element, a NPN type triode and a PNP type triode, rectification component connection in the microphone pin reaches the GND pin, and with the base of NPN type triode links to each other, the emitter ground of NPN type triode, collecting electrode and the base of PNP type triode links to each other, the projecting pole of PNP type triode with power anodal links to each other, the collecting electrode and functional circuit module links to each other, the utility model provides a reducible battery unnecessary of cell -phone audio interface communication equipment consumes, prolongs its life, the consume that produces owing to be in the on position always of protect function circuit module simultaneously.
Description
Technical field
The utility model relates to communication technical field, especially about a kind of mobile audio interface communication equipment.
Background technology
Along with the high speed development of mobile communication technology, mobile phone has become means of communication very general in people's daily life, also get more and more based on the application program of mobile phone development and ancillary equipment thereof, the function of mobile phone expanded by these application programs and ancillary equipment thereof, make it far beyond the category of simple means of communication, such as Cellscope, mobile phone micro projector, wireless handheld scanner, health detector, mobile phone 20M audio emitter, mobile phone card reader, air monitor etc., these ancillary equipment are connected with mobile phone by wireless or wired mode, in the mode of wired connection, ancillary equipment is mainly by being connected with interface existing on mobile phone, such as audio interface, data transmission interface etc., but, the form of the identical function interface that different types of mobile phone provides is also different, it is more common that what differ greatly is power interface, therefore the interface shape of ancillary equipment and mobile phone also has number of different types.
Mobile audio interface communication equipment refers to and carries out by mobile audio interface and mobile phone the ancillary equipment that communicates, the audio interface of existing main flow mobile phone all meets national standard or international standard, it comprises L channel, R channel, microphone and ground wire altogether, and mobile audio interface communication equipment carries out the mutual of signal by L channel or R channel and microphone interface and mobile phone.
The battery that functional circuitry module in mobile audio interface communication equipment is set in mainly passing through is powered as it, and no matter whether mobile telecommunication device is in running order, battery in mobile audio interface communication equipment is all powered for functional circuitry continual, battery is in lasting consumption state, thus, not only make battery easily be consumed totally, therefore functional circuitry also can be subject to unnecessary loss.
Utility model content
In order to solve Problems existing in background technology, the utility model provides a kind of mobile audio interface communication equipment, by setting up energy supply control module, when making mobile audio interface communication equipment be that mobile phone connects, battery is meeting and functional circuitry model calling, for its electricity, and when handset audio equipment does not access mobile phone, battery and functional circuitry module disconnect, be in non-"on" position, thus, can battery electric quantity be saved, extend battery, avoid impacting functional circuitry module owing to being in "on" position always simultaneously.
The mobile audio interface communication equipment that the utility model provides, comprises: audio interface, energy supply control module, power supply and functional circuit module, and wherein said audio interface comprises a microphone pin and a GND pin; Described energy supply control module comprises a rectifier cell, a NPN type triode and a PNP type triode, described rectifier cell is connected to described microphone pin and described GND pin, and be connected with the base stage of described NPN type triode, grounded emitter, the collector electrode of described NPN type triode are connected with the base stage of described PNP type triode, and the emitter of described PNP type triode is connected with the positive pole of described power supply, collector electrode is connected with described functional circuit module.
In a preferred embodiment, mobile audio interface communication equipment more comprises two anti-interference elements, and wherein, described microphone pin is by anti-interference element ground described in one of them, and described GND pin is by anti-interference element ground described in another.
In a preferred embodiment, described anti-interference element comprises the first resistance and Schottky diode, described microphone pin is connected with described Schottky diode positive pole with described first resistance of described GND pin by corresponding described anti-interference element, described Schottky diode minus earth.
In a preferred embodiment, described energy supply control module more comprises the second resistance, and described rectifier cell is connected with the base stage of described NPN type triode by described second resistance.
In a preferred embodiment, described energy supply control module more comprises the 3rd resistance, and the collector electrode of described NPN type triode is connected with the base stage of described PNP type triode by described 3rd resistance.
In a preferred embodiment, described energy supply control module more comprises the first filter element, between the base stage that described first filter element is connected across described NPN type triode and emitter.
In a preferred embodiment, described energy supply control module more comprises the second filter element, between the collector electrode that described second filter element is connected across described PNP type triode and ground.
In a preferred embodiment, described rectifier cell is made up of two two Xiao Jite diodes, described pair of Schottky diode comprises negative electrode pin, anode pin and common pin, described in one of them, the common pin of two Schottky diode is connected with described microphone pin, described in another, the common pin of two Schottky diode is connected with described GND pin, the described negative electrode pin of two described pair of Schottky diodes is connected and ground connection, and described anode pin is connected and is connected with the base stage of described NPN type triode.
In a preferred embodiment, described audio interface more comprises two earphone pins, and described in one of them, earphone pin is connected to described functional circuit module.
In a preferred embodiment, a described earphone pin is by the 4th grounding through resistance, and earphone pin described in another is by the 5th grounding through resistance.
A bias voltage is there is between the ground wire of mobile audio interface and microphone signal interface, when mobile audio interface communication equipment access mobile audio interface provided by the utility model, bias voltage by rectifier cell for NPN type triode provides bias current to make it enter saturation condition, and then make PNP type triode saturated, thus turn-on battery and functional circuit module, battery is that functional circuit module is powered, and mobile audio interface communication equipment is opened; When mobile audio interface communication equipment provided by the utility model and mobile phone disconnect, do not have bias voltage to input, therefore NPN type triode is in cut-off state, PNP type triode also cannot be saturated, battery and functional circuit module access failure, mobile audio interface communication equipment is in off-position.As can be seen here; the ingenious bias voltage existed between the ground wire in mobile audio interface and microphone that utilizes of the mobile audio interface communication equipment that the utility model provides is to control the connection between battery and functional circuit module; thus when arriving mobile audio interface communication equipment access mobile phone; battery is that functional circuit module is powered; when extracting; the object of stopping power supply; to reduce the unnecessary consumption of battery; extend its useful life, the simultaneously consume that produces owing to being in "on" position always of defencive function circuit module.
Accompanying drawing explanation
Fig. 1 illustrates the mobile audio interface communicating equipment circuit structural representation that the utility model one preferred embodiment provides;
Fig. 2 illustrates the mobile audio interface communicating equipment circuit structural representation that another preferred embodiment of the utility model provides;
Fig. 3 illustrates the mobile audio interface communicating equipment circuit structural representation that the another preferred embodiment of the utility model provides.
Component symbol illustrates:
Audio interface Y
Microphone pin Ym
GND pin Yg
Earphone pin Yr
Earphone pin Yl
Energy supply control module 10
Rectifier cell 11
NPN type triode Q1
PNP type triode Q2
Two Schottky diode U1
Two Schottky diode U2
Negative electrode pin 1
Anode pin 2
Common pin 3
Second resistance R2
3rd resistance R3
First filter element 12
Electric capacity C1
Second filter element 13
Electric capacity C2
Electric capacity C3
Battery BT
Functional circuit module 20
Anti-interference element 30
First resistance R1a
Schottky diode D1
Anti-interference element 40
First resistance R1b
Schottky diode D2
4th resistance R4
5th resistance R5
Embodiment
For making the technical solution of the utility model and advantage thereof definitely and in detail, be described hereinafter with reference to diagram.
Refer to Fig. 1, Fig. 1 illustrates the mobile audio interface communicating equipment circuit structural representation that the utility model one preferred embodiment provides.As shown in Figure 1, the mobile audio interface communication equipment that the present embodiment provides comprises audio interface Y, energy supply control module 10, battery BT and functional circuit module 20.
Specifically, audio interface Y comprises four pins, be respectively microphone pin Ym, GND pin Yg and two earphone pin Yr and Yl, when the audio interface of mobile audio interface communication equipment access mobile phone, the microphone pin Ym of the audio interface Y of mobile audio interface communication equipment is connected with the microphone pin of mobile audio interface, GND pin Yg is connected with the ground wire pin of mobile audio interface, earphone pin Yr is connected with the R channel pin of mobile audio interface, and earphone pin Yl is connected with the left channel pin of mobile audio interface.In the present embodiment, microphone pin Ym and earphone pin Yl is connected to functional circuit module 20, transmit for the data-signal between mobile audio interface communication equipment and mobile phone, earphone pin Yr ground connection, be understandable that, in other embodiments of the present utility model, that be connected with functional circuit module 20 also can be earphone pin Yr, ground connection be earphone pin Yl, the utility model is not limited with the connected mode in the present embodiment.
Energy supply control module 10 comprises rectifier cell 11, NPN type triode Q1 and PNP type triode Q2.As shown in the figure, in the present embodiment, rectifier cell 11 is made up of two groups of two Schottky diode U1 and U2, two Schottky diode U1, U2 all comprise negative electrode pin 1, anode pin 2 and common pin 3, wherein the common pin 3 of two Schottky diode U1 is connected with microphone pin Ym, negative electrode pin 1 is connected also ground connection with the negative electrode pin 1 of two Schottky diode U2, and the common pin 3 of two Schottky diode U2 is connected with GND pin Yg, anode pin 2 is connected with the anode pin 2 of two Schottky diode U1 and is connected to the base stage of NPN type triode Q1.Grounded emitter, the collector electrode of NPN type triode Q1 are connected with the base stage of PNP type triode Q2, and the emitter of PNP type triode Q2 is connected with the positive pole of battery BT, and the collector electrode of PNP type triode Q2 is connected with functional circuit module 20.Energy supply control module 10 operation principle in the present embodiment is, when mobile audio interface communication equipment is connected with mobile phone, bias voltage is produced between microphone pin Ym and GND pin Yg, bias voltage is through rectifier cell 11, import NPN type triode Q1 into, bias current is provided for the BE of NPN type triode Q1 ties (i.e. base stage and emitter), make NPN type triode Q1 saturated, when Q1 is saturated, the BE of PNP type triode Q2 ties reverse-biased generation bias current, make PNP type triode Q2 saturated, the emitter of PNP type triode Q2 and collector electrode conducting, thus make battery BT be that functional circuit module 20 is powered by PNP type triode Q2.But when mobile audio interface communication equipment is not connected with mobile phone, owing to not having bias voltage to import into, PNP type triode Q2 unsaturation, its emitter and collector electrode disconnect, thus make cannot carry out conducting between battery BT and functional circuit module 20, stop as its power supply.Thus, the consumption that battery is unnecessary can being reduced, extending battery life, preventing the loss that functional circuit module causes because being energized for a long time simultaneously.
It should be noted that, in the present embodiment, bias voltage between microphone pin Ym and GND pin Yg can be converted to the control direct current signal in energy supply control module 10 by rectifier cell 11, rectifier cell 11 adopts two two Xiao Jite diodes to form, because Schottky diode self tube voltage drop is less, when the bias voltage of some mobile phone is smaller, also can well be suitable for, the applicable model of the present embodiment technical scheme can be expanded thus.Be understandable that, in other embodiments of the present utility model, rectifier cell 11 also can be made up of other elements, such as, be made up of four diodes, as can be seen here, those skilled in the art can select the formation of rectifier cell 11 according to the difference of actual product demand.
In the present embodiment, the power supply of functional circuit module is provided by battery BT, and be specifically as follows lithium battery or other storage batterys, the utility model is not as limit.Battery BT minus earth.
Functional circuit module 20 is the modules for specific implementation mobile audio interface communication equipment actual functional capability, it realizes different functions according to different product designs, such as mobile phone card reader, be a kind of by mobile phone to carry out the mobile audio interface communication equipment of bank card payment, its functional circuit module carries out data interaction by microphone pin and earphone pin and mobile phone, the bank card information read is transferred to mobile phone, to complete the functions such as payment or inquiry.Embodiment of the present utility model, mainly in order to solve battery powered relevant issues, with the function of functional circuit module specific implementation and onrelevant, therefore is no longer specifically described at this.
As mentioned before, when mobile audio interface communication equipment access mobile phone, bias voltage is there is between microphone pin Ym and GND pin Yg, and the size of bias voltage reality is relevant to type of cell phone, but generally speaking still belong to small-signal, and energy supply control module 10 carries out work based on this small-signal just, in order to avoid being subject to the interference of the extraneous signal of telecommunication, in a preferred embodiment, mobile audio interface communication equipment more comprises anti-interference element, for antistatic interference.Refer to Fig. 2, Fig. 2 illustrates the mobile audio interface communicating equipment circuit structural representation that another preferred embodiment of the utility model provides.As shown in Figure 2, the present embodiment and difference embodiment illustrated in fig. 1 are, the mobile audio interface communication equipment that this enforcement provides more comprises two anti-interference elements 30 and 40, and microphone pin Ym is by anti-interference element 30 ground connection, and GND pin Yg is by anti-interference element 40 ground connection.Specifically, anti-interference element 30 comprises the first resistance R1a and Schottky diode D1, microphone pin Ym is connected to the first resistance R1a, first resistance R1a is connected to the positive pole of Schottky diode D1, in other words, microphone pin Ym is connected with the positive pole of Schottky diode D1 by the first resistance R1a, Schottky diode D1 minus earth, same, anti-interference element 40 comprises the first resistance R1b and Schottky diode D2, GND pin Yg is connected to the first resistance R1b, first resistance R1b is connected to the positive pole of Schottky diode D2, in other words, GND pin Yg is connected with the positive pole of Schottky diode D2 by the first resistance R1b, Schottky diode D2 minus earth.In the present embodiment, anti-interference element 30 and 40 is by forming leadage circuit, by the electrostatic leakage in mobile audio interface communication equipment, thus prevent electrostatic from producing interference to mobile audio interface communication equipment, prevent energy supply control module 10 from producing misoperation because of electrostatic, improve the stability of mobile audio interface communication equipment performance.It should be noted that other element of the mobile audio interface communication equipment in the present embodiment and annexation thereof with embodiment illustrated in fig. 1 in mobile audio interface communication equipment identical, therefore no longer to repeat.
In other preferred embodiments of the present utility model; in order to the element in protective circuit or filtration clutter; corresponding object can be reached by what set up resistance and filter element; please refer to Fig. 3, Fig. 3 illustrates the mobile audio interface communicating equipment circuit schematic diagram that the another preferred embodiment of the utility model provides.As shown in Figure 3, the mobile audio interface communication equipment of the present embodiment and the difference of provided mobile audio interface communication equipment embodiment illustrated in fig. 1 are, have set up protective resistance and filter element.In the energy supply control module 10 of the mobile audio interface communication equipment that this enforcement provides, more comprise the second resistance R2, the 3rd resistance R3, the first filter element 12 and the second filter element 13.
Specifically, second resistance R2 is connected to rectifier cell 11 and NPN type triode Q1, in other words, rectifier cell 11 is connected with the base stage of NPN type triode Q1 by the second resistance R2, because the ability to bear of NPN type triode Q1 to voltage is limited, current limliting can be carried out to circuit by setting up the second resistance R2, thus prevent NPN type triode Q1 because of the thermal breakdown of the excessive appearance of electric current and the aging speed slowing down NPN type triode Q1, NPN type triode Q1 can be stablized and permanent work.
3rd resistance R3 is connected to NPN type triode Q2 and PNP type triode Q2; in other words; the collector electrode of NPN type triode Q1 is connected with the base stage of PNP type triode Q2 by the 3rd resistance R3, identical with the function of the second resistance R2, and the 3rd resistance R3 can be PNP type triode Q2 provides protection.
In the present embodiment, first filter element 12 is made up of electric capacity C1, it is connected across between the base stage of NPN type triode and emitter, can carry out clutter filtration, avoiding the misoperation that NPN type triode Q1 occurs because of clutter by arranging electric capacity C1 to the signal transferring to NPN type triode Q1.It should be noted that the first filter element 12 also can be realized by other modes, those skilled in the art can carry out selectivity replacement, not as limit according to the actual demand of product.
Second filter element 13 comprises electric capacity C2 and C3, both are all connected across between the collector electrode of PNP type triode Q2 and ground, can be functional circuit module 20 and filter function is provided, avoid functional circuit module 20 by the signal in energy supply control module 10 or the impact carrying out clutter extraneous from the beginning, same, second filter element 13 also can be realized by other modes, and those skilled in the art can carry out selectivity replacement, not as limit according to the actual demand of product.
In addition, the mobile audio interface communication equipment that the present embodiment provides also comprises the 4th resistance R4 and the 5th resistance R5, be connected with earphone pin Yr, Yl respectively, specifically, earphone pin Yr is by the 4th resistance R4 ground connection, and earphone pin Yl passes through the 5th resistance R5 ground connection, in this way, the audio signal that can be mobile phone is set up with reference to ground, stablizes input signal.
In the present embodiment, by setting up the second resistance R2, the 3rd resistance R3 is respectively NPN type triode Q1 and PNP type triode Q2 provides protection, makes the work that they can be more stable and permanent; By setting up the first filter element 12 and the second filter element 13, NPN type triode Q1, functional circuit module 20 filtering clutter can be respectively, avoid producing misoperation; By setting up the 4th resistance R4 and the 5th resistance R5 carrys out stable input signal, make circuit can carry out work more accurately.
Be understandable that, the resistance set up in the present embodiment and filter element can carry out adjusting and selecting according to actual conditions, not all must be included in mobile audio interface communication equipment, and the resistance set up in the present embodiment and filter element and embodiment illustrated in fig. 2 in anti-interference element also in the same embodiment and deposit, mutually can there is no impact.
In sum; mobile audio interface communication equipment provided by the utility model by energy supply control module to the connection between battery and functional circuit module; make mobile audio interface communication equipment only when being connected with mobile phone; its battery just can be connected with functional circuit module; and be its power supply; and when disconnecting with mobile phone; connection between battery and functional circuit module will disconnect; thus stop as its power supply; thus avoid battery to carry out unnecessary consumption; extend battery, and defencive function circuit module.In addition; by setting up anti-interference element, resistance and filter element in circuit, for corresponding element provides protection, for circuit is released and filtering related clutter; avoid the interference of circuit because clutter and occur misoperation, improve performance and the stability of mobile audio interface communication equipment.
Be understandable that, type and the parameter of electronic devices and components involved in the utility model all can be chosen according to the actual demand of product by those skilled in the art, all should belong to the scope that the utility model comprises.
Claims (10)
1. a mobile audio interface communication equipment, is characterized in that, comprises: audio interface, energy supply control module, power supply and functional circuit module, and wherein said audio interface comprises a microphone pin and a GND pin; Described energy supply control module comprises a rectifier cell, a NPN type triode and a PNP type triode, described rectifier cell is connected to described microphone pin and described GND pin, and be connected with the base stage of described NPN type triode, grounded emitter, the collector electrode of described NPN type triode are connected with the base stage of described PNP type triode, and the emitter of described PNP type triode is connected with the positive pole of described power supply, collector electrode is connected with described functional circuit module.
2. mobile audio interface communication equipment as claimed in claim 1, it is characterized in that, more comprise two anti-interference elements, wherein, described microphone pin is by anti-interference element ground described in one of them, and described GND pin is by anti-interference element ground described in another.
3. mobile audio interface communication equipment as claimed in claim 2, it is characterized in that, described anti-interference element comprises the first resistance and Schottky diode, described microphone pin is connected with described Schottky diode positive pole with described first resistance of described GND pin by corresponding described anti-interference element, described Schottky diode minus earth.
4. mobile audio interface communication equipment as claimed in claim 1, it is characterized in that, described energy supply control module more comprises the second resistance, and described rectifier cell is connected with the base stage of described NPN type triode by described second resistance.
5. mobile audio interface communication equipment as claimed in claim 1, it is characterized in that, described energy supply control module more comprises the 3rd resistance, and the collector electrode of described NPN type triode is connected with the base stage of described PNP type triode by described 3rd resistance.
6. mobile audio interface communication equipment as claimed in claim 1, it is characterized in that, described energy supply control module more comprises the first filter element, between the base stage that described first filter element is connected across described NPN type triode and emitter.
7. mobile audio interface communication equipment as claimed in claim 1, it is characterized in that, described energy supply control module more comprises the second filter element, between the collector electrode that described second filter element is connected across described PNP type triode and ground.
8. mobile audio interface communication equipment as claimed in claim 1, it is characterized in that, described rectifier cell is made up of two two Xiao Jite diodes, described pair of Schottky diode comprises negative electrode pin, anode pin and common pin, described in one of them, the common pin of two Schottky diode is connected with described microphone pin, described in another, the common pin of two Schottky diode is connected with described GND pin, the described negative electrode pin of two described pair of Schottky diodes is connected and ground connection, and described anode pin is connected and is connected with the base stage of described NPN type triode.
9. mobile audio interface communication equipment as claimed in claim 1, it is characterized in that, described audio interface more comprises two earphone pins, and described in one of them, earphone pin is connected to described functional circuit module.
10. mobile audio interface communication equipment as claimed in claim 9, is characterized in that, a described earphone pin is by the 4th grounding through resistance, and earphone pin described in another is by the 5th grounding through resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520443913.0U CN204795567U (en) | 2015-06-25 | 2015-06-25 | Cell -phone audio interface communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520443913.0U CN204795567U (en) | 2015-06-25 | 2015-06-25 | Cell -phone audio interface communication equipment |
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| Publication Number | Publication Date |
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| CN204795567U true CN204795567U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201520443913.0U Withdrawn - After Issue CN204795567U (en) | 2015-06-25 | 2015-06-25 | Cell -phone audio interface communication equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106101391A (en) * | 2016-06-01 | 2016-11-09 | 福建联迪商用设备有限公司 | A kind of method solving the shake of Android phone microphone bias voltage |
| CN106303822A (en) * | 2015-06-25 | 2017-01-04 | 朗新科技股份有限公司 | Mobile audio interface communication equipment |
-
2015
- 2015-06-25 CN CN201520443913.0U patent/CN204795567U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106303822A (en) * | 2015-06-25 | 2017-01-04 | 朗新科技股份有限公司 | Mobile audio interface communication equipment |
| CN106303822B (en) * | 2015-06-25 | 2021-06-08 | 朗新科技集团股份有限公司 | Mobile phone audio interface communication equipment |
| CN106101391A (en) * | 2016-06-01 | 2016-11-09 | 福建联迪商用设备有限公司 | A kind of method solving the shake of Android phone microphone bias voltage |
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Address after: Wuxi District of Jiangsu city of Wuxi province Zhenze road 214131 No. 18 Wuxi Software Park, whale D Building Room 601 Patentee after: Lanxin Technology Group Co., Ltd Address before: Wuxi District of Jiangsu city of Wuxi province Zhenze road 214131 No. 18 Wuxi Software Park, whale D Building Room 601 Patentee before: LONGSHINE TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 214135 floor 10 and 11, building B, swan tower, Wuxi Software Park, No. 90, Jinghui East Road, Xinwu District, Wuxi City, Jiangsu Province Patentee after: Lanxin Technology Group Co., Ltd Address before: Wuxi District of Jiangsu city of Wuxi province Zhenze road 214131 No. 18 Wuxi Software Park, whale D Building Room 601 Patentee before: Lanxin Technology Group Co., Ltd |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20210608 |
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Granted publication date: 20151118 Effective date of abandoning: 20210608 |
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| AV01 | Patent right actively abandoned |