CN204350271U - Universal audio adaptive device and electronic equipment - Google Patents
Universal audio adaptive device and electronic equipment Download PDFInfo
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- CN204350271U CN204350271U CN201420713420.XU CN201420713420U CN204350271U CN 204350271 U CN204350271 U CN 204350271U CN 201420713420 U CN201420713420 U CN 201420713420U CN 204350271 U CN204350271 U CN 204350271U
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Abstract
A kind of universal audio adaptive device that the utility model provides and electronic equipment, realize when adaptive device audio interface of the present utility model inserts electronic equipment audio frequency interface by adapter circuit, the voltage detecting value of Umic is made to fall into the identification range of electronic equipment audio frequency interface, the utility model goes for the electronic equipment with GB audio interface or American Standard audio interface, therefore has the advantage of highly versatile.Universal audio adaptive device, comprising: adaptive device audio interface and adapter circuit; Described adaptive device audio interface at least comprises the first pin and the second pin, described first pin be Mike's pin or ground pin in one, described second pin be Mike's pin or ground pin in another; Described adapter circuit at least comprises: load unit and bidirectional voltage boosting unit; The first end of described load unit is connected with described first pin, second end of described load unit is connected with the first end of described bidirectional voltage boosting unit, second end of described bidirectional voltage boosting unit is connected with described second pin, and described bidirectional voltage boosting unit comprises the one way conducting device of reverse parallel connection.
Description
Technical field
The utility model relates to a kind of adaptive device and electronic equipment, particularly relates to a kind of universal audio adaptive device and electronic equipment.
Background technology
Current audio interface is divided into syllogic audio interface and four-part form audio interface, and wherein, four-part form audio interface is divided into again GB four-part form interface and American Standard four-part form interface.The pin one of GB four-part form interface is L channel pin, pin two is R channel pin, pin 3 is Mike's pin, pin 4 is ground pin, and the pin set-up mode of American Standard four-part form interface is then different, wherein, pin one is L channel pin, pin two is R channel pin, and pin 3 is GND pin, and pin 4 is Mike's pin.For the headset plug of GB four-part form, as shown in Figure 1, L channel loudspeaker first end is connected with pin one, and its second end is connected with pin 4; R channel loudspeaker first end is connected with pin two, and its second end is connected with pin 4; Mike's first end is connected with pin 3, and the second end is connected with pin 4.
Between earphone and the electronic equipment with audio interface with the use of identifying as follows, headset plug is after insertion audio interface, electronic equipment can Umic voltage between automatic Test earphone Mike and ground, only have when the Umic voltage detected is in the identification range of audio interface, audio interface eloquence assert that headset plug inserts successfully.Because GB four-part form interface in audio interface is different with Mike's pin of American Standard four-part form interface and the line sequence of ground pin, cause detection line sequence during dissimilar electronic equipment detection Umic voltage different, therefore, simple employing GB four-part form interface headphones or American Standard four-part form interface headphones just can not be applicable to the electronic equipments with audio interface all on the market, have the shortcoming of earphone adapting universal difference.
Utility model content
For this reason, technical problem to be solved in the utility model is the problem overcoming prior art sound intermediate frequency interface generality difference, provides a kind of universal audio adaptive device and electronic equipment.
For solving the problems of the technologies described above, the utility model provides a kind of universal audio adaptive device on the one hand, comprising: adaptive device audio interface and adapter circuit; Described adaptive device audio interface at least comprises the first pin and the second pin, described first pin be Mike's pin or ground pin in one, described second pin be Mike's pin or ground pin in another; Described adapter circuit at least comprises: load unit and bidirectional voltage boosting unit; The first end of described load unit is connected with described first pin, second end of described load unit is connected with the first end of described bidirectional voltage boosting unit, second end of described bidirectional voltage boosting unit is connected with described second pin, and described bidirectional voltage boosting unit comprises the one way conducting device of reverse parallel connection.
A kind of universal audio adaptive device, described load unit is the first resistance, the one way conducting device of described reverse parallel connection comprises the first diode and the second diode, and described first diode and described second diode are symmetrical arranged, wherein, the first end of described first resistance is connected with described first pin, and the second end of described first resistance is connected with the positive pole of described first diode and the negative pole of described second diode respectively; The negative pole of described first diode is connected with described second pin; The positive pole of described second diode is connected with described second pin.
A kind of universal audio adaptive device, described load unit is the first resistance, and the one way conducting device of described reverse parallel connection is bidirectional diode, wherein, the first end of described first resistance is connected with described first pin, and the second end of described first resistance is connected with the first end of described bidirectional diode; Second end of described bidirectional diode is connected with described second pin.
A kind of universal audio adaptive device, the resistance of described first resistance is 6k Ω ~ 10k Ω.
A kind of universal audio adaptive device, the resistance of described first resistance is 7.5k Ω ~ 8.2k Ω.
A kind of universal audio adaptive device, described first diode is germanium tube diode or silicone tube diode; Described second diode is germanium tube diode or silicone tube diode.
A kind of universal audio adaptive device, described bidirectional diode is germanium tube bidirectional diode or silicone tube bidirectional diode.
The utility model provides a kind of electronic equipment on the other hand, comprising: universal audio adaptive device as above.
The another aspect of the utility model provides a kind of universal audio adaptive device, comprising: adaptive device audio interface and adapter circuit; Described adaptive device audio interface at least comprises the first pin and the second pin, described first pin be Mike's pin or ground pin in one, described second pin be Mike's pin or ground pin in another; Described adapter circuit at least comprises: the first adaptation unit and the second adaptation unit; Described first adaptation unit comprises the first load component and the first boost parts, the first end of described first load component is connected with described first pin, second end of described first load component is connected with the first end of described first boost parts, and the second end of described first boost parts is connected with described second pin; Described second adaptation unit comprises the second load component and the second boost parts, the first end of described second load component is connected with described second pin, second end of described second load component is connected with the first end of described second boost parts, and the second end of described second boost parts is connected with described first pin; Described first boost parts is one way conducting device, and described second boost parts is one way conducting device, and two described one way conducting devices are symmetrical arranged.
A kind of universal audio adaptive device, described first load component is the second resistance, described first boost parts is the first triode, described second load component is the 3rd resistance, described second boost parts is the second triode, and wherein, the first end of described second resistance is connected with described first pin, second end of described second resistance is connected with the base stage of described first triode, and the emitter of described first triode is connected with described second pin; The first end of described 3rd resistance is connected with described second pin, and the second end of described 3rd resistance is connected with the base stage of described second triode, and the emitter of described second triode is connected with described first pin.
A kind of universal audio adaptive device, the resistance of described second resistance is 4k Ω ~ 9k Ω, and the resistance of the 3rd resistance is 4k Ω ~ 9k Ω.
A kind of universal audio adaptive device, the resistance of described second resistance is 5k Ω ~ 7k Ω, and the resistance of described 3rd resistance is 5k Ω ~ 7k Ω.
A kind of universal audio adaptive device, the resistance of described second resistance is 5.6k Ω ~ 6.2k Ω, and the resistance of described 3rd resistance is 5.6k Ω ~ 6.2k Ω.
A kind of universal audio adaptive device, described first triode is germanium tube triode or silicone tube triode; Second triode is germanium tube triode or silicone tube triode.
The another aspect of the utility model provides a kind of electronic equipment, comprising: universal audio adaptive device as above.
Technique scheme of the present utility model has the following advantages compared to existing technology:
A kind of universal audio adaptive device that the utility model provides and electronic equipment, realize when adaptive device audio interface of the present utility model inserts electronic equipment audio frequency interface by adapter circuit, the voltage detecting value of Umic is made to fall into the identification range of electronic equipment audio frequency interface, the utility model goes for the electronic equipment with GB audio interface or American Standard audio interface, therefore has the advantage of highly versatile.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is the circuit diagram of background technology of the present utility model;
Fig. 2 is the structure chart of embodiment 1 of the present utility model;
Fig. 3 is the circuit diagram of embodiment 1 of the present utility model;
Fig. 4 is the structure chart of embodiment 2 of the present utility model;
Fig. 5 is the circuit diagram of embodiment 2 of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on embodiment of the present utility model, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection range of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or quantity or position.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
Below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Embodiment 1
The present embodiment 1 provides a kind of universal audio adaptive device, as shown in Figure 2, comprising: adaptive device audio interface and adapter circuit.
Adaptive device audio interface at least comprises the first pin and the second pin, the first pin be Mike's pin or ground pin in one, the second pin be Mike's pin or ground pin in another.
Adapter circuit, for when adaptive device audio interface is connected with electronic equipment audio frequency interface, cooperation electronic equipment completes the detection to adaptive device audio interface and electronic equipment audio frequency interface successful match.
Wherein, adapter circuit at least comprises: load unit and bidirectional voltage boosting unit.
The first end of load unit is connected with the first pin, and the second end of load unit is connected with the first end of bidirectional voltage boosting unit, and the second end of bidirectional voltage boosting unit is connected with the second pin, and bidirectional voltage boosting unit comprises the one way conducting device of reverse parallel connection.In the utility model, two one way conducting devices are symmetrical arranged.In the present embodiment, two one way conducting devices are symmetrical arranged, and are the type of two one way conducting devices, specification, parameter all identical; Reverse parallel connection, the input being first one way conducting device is connected with the output of second one way conducting device, and the output of first one way conducting device is connected with the input of second one way conducting device.By being symmetrical arranged two one way conducting devices, when the connected circuit of subsequent design difference, simplified design, various parameters when arranging without the need to considering that one way conducting device is asymmetric.
After adaptive device audio interface is connected with electronic equipment audio frequency interface, load unit is used for carrying out current limliting and dividing potential drop when electronic equipment detects Umic voltage; Bidirectional voltage boosting unit be used for electronic equipment detect Umic voltage time, make the voltage at bidirectional voltage boosting unit two ends over the ground pin raise, wherein, in the circuit of bidirectional voltage boosting unit two ends for the conducting of bidirectional voltage boosting unit institute, be positioned at the two ends of bidirectional voltage boosting unit.
Audio adaptation apparatus in the utility model can be any a four-section type headset plug or jack, and such as diameter is headset plug or the earphone jack of 3.5mm or 2.5mm.If adaptive device audio interface is headset plug, then can directly adaptive device audio interface be inserted in the earphone jack of electronic equipment audio frequency interface; If adaptive device audio interface is earphone jack, two ends can be adopted to be all that adaptive device audio interface is connected with electronic equipment audio frequency interface by the patchcord of headset plug.
When adaptive device audio interface is GB interface, this first pin can be Mike's pin (being positioned at pin 3 position), and the second pin is ground pin (being positioned at pin 4 position); Certainly, this first pin can also be ground pin (being positioned at pin 4 position), and the second pin is Mike's pin (being positioned at pin 3 position).
When adaptive device audio interface is American Standard interface, this first pin can be Mike's pin (being positioned at pin 4 position), and the second pin is ground pin (being positioned at pin 3 position); Certainly, this first pin can also be ground pin (being positioned at pin 3 position), and the second pin is Mike's pin (being positioned at pin 4 position).
Below, the utility model is positioned at pin 3 position with the first pin, the second pin is positioned at pin 4 position, adaptive device audio interface is described for earphone jack for headset plug, electronic equipment audio frequency interface:
When electronic equipment audio frequency interface adopts GB interface, Mike's pin of electronic equipment audio frequency interface is positioned at pin 3 position, the ground pin of electronic equipment audio frequency interface is positioned at pin 4 position, in use, adaptive device audio interface is inserted in the jack of electronic equipment audio frequency interface, now, first pin of adaptive device audio interface is connected with Mike's pin of electronic equipment audio frequency interface, second pin is connected with electronic equipment audio frequency interface ground pin, when electronic equipment carries out Umic voltage detecting, adapter circuit makes Umic voltage fall into the voltage identification scope of electronic equipment audio frequency interface, now, ensure that adaptive device audio interface and electronic equipment audio frequency interface match.
When electronic equipment audio frequency interface adopts American Standard interface, Mike's pin of electronic equipment audio frequency interface is positioned at pin 4 position, the ground pin of electronic equipment audio frequency interface is positioned at pin 3 position, in use, adaptive device audio interface is inserted in the jack of electronic equipment audio frequency interface, now, second pin of adaptive device audio interface is connected with Mike's pin of electronic equipment audio frequency interface, first pin is connected with electronic equipment audio frequency interface ground pin, adapter circuit makes Umic voltage fall into the voltage identification scope of electronic equipment audio frequency interface, now, ensure that adaptive device audio interface and electronic equipment audio frequency interface match.
Certainly, when the first pin is positioned at pin 4 position, when the second pin is positioned at pin 3 position, in technical scheme, pin is according to doing corresponding adjustment, namely can realize the technical program equally.
When adaptive device audio interface of the present utility model inserts electronic equipment audio frequency interface, the utility model realizes making the voltage detecting value of Umic fall into the identification range of electronic equipment audio frequency interface by adapter circuit, the utility model goes for the electronic equipment of GB interface or American Standard interface, therefore has the advantage of highly versatile.
Below, make that the first pin is positioned at pin 3 position, the second pin is positioned at pin 4 position, electronic equipment audio frequency interface adopts GB interface to be that example is described, certainly, as other execution modes, electronic equipment audio frequency interface can also adopt American Standard interface, certainly, can also make that the first pin is positioned at pin 4 position, the second pin is positioned at pin 3 position, be not described in detail in this.
As an embodiment of the present embodiment 1, as shown in Figure 3, in present embodiment, bidirectional voltage boosting unit comprises the diode of a pair reverse parallel connection, wherein, the diode of reverse parallel connection comprises the first diode Q1 and the second diode Q2, and the first diode Q1 and the second diode Q2 is symmetrical arranged.In the present embodiment, the first diode Q1 and the second diode Q2 is symmetrical arranged, and is the type of two diodes, specification, parameter all identical.Wherein, load unit is the first resistance R1, and the one way conducting device of reverse parallel connection comprises the first diode Q1 and the second diode Q2.When adaptive device audio interface of the present utility model inserts electronic equipment audio frequency interface, the first end of the first resistance R1 is connected with Mike's pin of electronic equipment audio frequency interface, and second end of the first resistance R1 is connected with the positive pole of the first diode Q1 and the negative pole of the second diode Q2 respectively.The negative pole of the first diode Q1 is connected with the ground pin of electronic equipment audio frequency interface.The positive pole of the second diode Q2 is connected with the ground pin of electronic equipment audio frequency interface.When the scope of the resistance of the first resistance R1 is 6k Ω ~ 10k Ω, the utility model just can mate with the most of electronic equipment on market.When the resistance of the first resistance R1 is reduced into 7.5k Ω ~ 8.2k Ω further, the utility model can be applicable to the most electronic equipments on market, and its versatility will be further enhanced.In present embodiment, in order to obtain best technique effect, when the first diode Q1 and the second diode Q2 is germanium tube diode, the first resistance R1 preferably adopts resistance to be the resistance of 7.8k Ω; When the first diode Q1 and the second diode Q2 is silicone tube diode, the first resistance R1 preferably adopts resistance to be the resistance of 8.1k Ω.
When electronic equipment audio frequency interface is GB interface, Mike's pin of electronic equipment audio frequency interface is positioned at pin 3 position, the ground pin of electronic equipment audio frequency interface is positioned at pin 4 position, in use, by adaptive device audio interface in jack that is direct or that insert electronic equipment audio frequency interface through transferring, now, first pin of adaptive device audio interface is connected with Mike's pin of electronic equipment audio frequency interface, second pin is connected with electronic equipment audio frequency interface ground pin, when electronic equipment detects, second diode Q2 is in cut-off state, first diode Q1 is in conducting state, therefore, the voltage of the positive terminal anticathode end of the first diode Q1 boosts, first resistance R1 carries out current limliting and dividing potential drop, ensure that the voltage of electronic equipment detection Umic falls into the voltage identification scope of electronic equipment audio frequency interface, thus, ensure that adaptive device audio interface and electronic equipment audio frequency interface match.
When electronic equipment audio frequency interface is American Standard interface, Mike's pin of electronic equipment audio frequency interface is positioned at pin 4 position, the ground pin of electronic equipment audio frequency interface is positioned at pin 3 position, in use, by adaptive device audio interface in jack that is direct or that insert electronic equipment audio frequency interface through transferring, now, second pin of adaptive device audio interface is connected with Mike's pin of electronic equipment audio frequency interface, first pin is connected with electronic equipment audio frequency interface ground pin, when electronic equipment detects, first diode Q1 is in cut-off state, second diode Q2 is in conducting state, therefore, the voltage of the positive terminal anticathode end of the second diode Q2 boosts, first resistance R1 carries out current limliting and dividing potential drop, ensure that the voltage of electronic equipment detection Umic falls into the voltage identification scope of electronic equipment audio frequency interface, thus, ensure that adaptive device audio interface and electronic equipment audio frequency interface match.
Adapter circuit of the present utility model coordinates electronic equipment to carry out the detection of Umic voltage by the diode of resistance and two mutual Opposite direction connections, thus realize when adaptive device audio interface is connected with electronic equipment audio frequency interface, make Umic voltage fall into the magnitude of voltage identification range of electronic equipment audio frequency interface.The utility model goes for the electronic equipment of GB interface or American Standard interface, and match cognization can be carried out with most electronic equipment audio frequency interface on market, improve the versatility of audio adaptation apparatus, and the utility model adopts resistance and diode just to improve the versatility of audio adaptation apparatus, therefore has the advantage that cost is low.
As the another one embodiment of the present embodiment 1, load unit is the first resistance R1, and the one way conducting device of described reverse parallel connection is bidirectional diode.Wherein, bidirectional diode is germanium tube bidirectional diode or silicone tube bidirectional diode.The resistance of the first resistance R1 is 6k Ω ~ 10k Ω, and in order to obtain better technique effect, the resistance of the first resistance R1 can be set to 7.5k Ω ~ 8.2k Ω further.In present embodiment, in order to obtain best technique effect, when bidirectional diode is germanium tube bidirectional diode, the first resistance R1 employing resistance is the resistance of 7.8k Ω; When bidirectional diode is silicone tube bidirectional diode.
When the diode that bidirectional diode substitutes two mutual Opposite direction connections is as bidirectional voltage boosting unit, its principle is identical as bidirectional voltage boosting unit with the diode of two mutual Opposite direction connections, can reach identical effect, be not described in detail in this.
The present embodiment 1 also provides a kind of electronic equipment, and this electronic equipment can comprise above-mentioned universal audio adaptive device.This electronic equipment can for intelligent cipher equipment (audio frequency KEY), earphone, audio switching device (audio interface turns the switching device of other interfaces) or other can carry out the device of transfer of data by audio interface.
Embodiment 2
The present embodiment 2 provides a kind of universal audio adaptive device, as shown in Figure 4, comprising: adaptive device audio interface and adapter circuit.
Adaptive device audio interface at least comprises the first pin and the second pin, the first pin be Mike's pin or ground pin in one, the second pin be Mike's pin or ground pin in another.
Adapter circuit, for when adaptive device audio interface is connected with electronic equipment audio frequency interface, cooperation electronic equipment completes the detection to adaptive device audio interface and electronic equipment audio frequency interface successful match.
Wherein, adapter circuit at least comprises: the first adaptation unit and the second adaptation unit;
First adaptation unit comprises the first load component and the first boost parts, the first end of the first load component is connected with the first pin, second end of the first load component is connected with the first end of the first boost parts, and the second end of the first boost parts is connected with the second pin.
Second adaptation unit comprises the second load component and the second boost parts, the first end of the second load component is connected with the second pin, second end of the second load component is connected with the first end of the second boost parts, and the second end of the second boost parts is connected with the first pin;
Described first boost parts is one way conducting device, and described second boost parts is one way conducting device, and two described one way conducting devices are symmetrical arranged.Described in the present embodiment a two described one way conducting device is symmetrical arranged, and is the type of two described one way conducting devices, specification, parameter all identical.By being symmetrical arranged two one way conducting devices, when the connected circuit of subsequent design difference, simplified design, various parameters when arranging without the need to considering that one way conducting device is asymmetric.
After adaptive device audio interface is connected with electronic equipment audio frequency interface, load component (the first load component or the second load component) is for carrying out current limliting and dividing potential drop when electronic equipment detects Umic voltage; Boost parts (the first boost parts or the second boost parts) is for when electronic equipment detects Umic voltage, make the power supply at boost parts two ends over the ground pin raise, wherein, the two ends of boost parts are positioned in the circuit of boost parts two ends for the conducting of boost parts institute.
Adaptive device interface in the utility model can be any a four-section type headset plug or jack, and such as diameter is headset plug or the earphone jack of 3.5mm or 2.5mm.If the audio adaptation apparatus in the utility model is headset plug, then can directly audio adaptation apparatus of the present utility model be inserted in the earphone jack of electronic equipment; If the audio adaptation apparatus in the utility model is earphone jack, two ends can be adopted to be all that adaptive device audio interface is connected with electronic equipment by the patchcord of headset plug.
When adaptive device audio interface is GB interface, this first pin can be ground pin (being positioned at pin 4 position) for Mike's pin (being positioned at pin 3 position), the second pin; Certainly, this first pin can also be ground pin (being positioned at pin 4 position), and the second pin is Mike's pin (being positioned at pin 3 position).
When adaptive device audio interface is American Standard interface, this first pin can be Mike's pin (being positioned at pin 4 position), and the second pin is ground pin (being positioned at pin 3 position); Certainly, this first pin can also be ground pin (being positioned at pin 3 position), and the second pin is Mike's pin (being positioned at pin 4 position).
Below, the utility model is positioned at pin 3 position with the first pin, the second pin is positioned at pin 4 position, adaptive device audio interface is described for earphone jack for headset plug, electronic equipment audio frequency interface:
When electronic equipment audio frequency interface is GB interface, Mike's pin of electronic equipment audio frequency interface is positioned at pin 3 position, the ground pin of electronic equipment audio frequency interface is positioned at pin 4 position, in use, adaptive device audio interface is inserted in the jack of electronic equipment audio frequency interface, now, first pin of adaptive device audio interface is connected with Mike's pin of electronic equipment audio frequency interface, second pin is connected with electronic equipment audio frequency interface ground pin, when electronic equipment carries out Umic voltage detecting, adapter circuit makes Umic voltage fall into the voltage identification scope of electronic equipment audio frequency interface, now, ensure that adaptive device audio interface and electronic equipment audio frequency interface match.
When electronic equipment audio frequency interface is American Standard interface, Mike's pin of electronic equipment audio frequency interface is positioned at pin 4 position, the ground pin of electronic equipment audio frequency interface is positioned at pin 3 position, in use, adaptive device audio interface is inserted in the jack of electronic equipment, now, second pin of adaptive device audio interface is connected with Mike's pin of electronic equipment audio frequency interface, first pin is connected with electronic equipment audio frequency interface ground pin, adapter circuit makes Umic voltage fall into the voltage identification scope of electronic equipment audio frequency interface, now, ensure that adaptive device audio interface and electronic equipment audio frequency interface match.
Certainly, when the first pin is positioned at pin 4 position, when the second pin is positioned at pin 3 position, in technical scheme, pin is according to doing corresponding adjustment, namely can realize the technical program equally.
When adaptive device audio interface of the present utility model inserts electronic equipment audio frequency interface, the utility model realizes making Umic voltage fall into the magnitude of voltage identification range of electronic equipment audio frequency interface by adapter circuit, the utility model goes for the electronic equipment of GB interface or American Standard interface, therefore has the advantage of highly versatile.And the utility model only adopts resistance and triode just to improve the versatility of audio adaptation apparatus, therefore has the advantage that cost is low.
Below, make that the first pin is positioned at pin 3 position, the second pin is positioned at pin 4 position, electronic equipment audio frequency interface adopts GB interface to be that example is described, certainly, as other execution modes, electronic equipment audio frequency interface can also adopt American Standard interface, certainly, can also make that the first pin is positioned at pin 4 position, the second pin is positioned at pin 3 position, be not described in detail in this.
As one of the present embodiment 2 concrete execution mode, as shown in Figure 5, the first load component is the second resistance R2, and the first boost parts is the first triode D1, and the second load component is the 3rd resistance R3, and the second boost parts is the second triode D2.Wherein, when adaptive device audio interface of the present utility model inserts electronic equipment audio frequency interface, the first end of the second resistance R2 is connected with Mike's pin of electronic equipment audio frequency interface, second end of the second resistance R2 is connected with the base stage of the first triode D1, and the emitter of the first triode D1 is connected with the ground pin of electronic equipment audio frequency interface.The first end of the 3rd resistance R3 is connected with the ground pin of electronic equipment audio frequency interface, and second end of the 3rd resistance R3 is connected with the base stage of the second triode D2, and the emitter of the second triode D2 is connected with Mike's pin of electronic equipment audio frequency interface.
Wherein, the first triode D1 is germanium tube triode or silicone tube triode.Second triode D2 is germanium tube triode or silicone tube triode.
The resistance of the second resistance R2 is 4k Ω ~ 9k Ω, and the resistance of the 3rd resistance is 4k Ω ~ 9k Ω.The utility model just can mate with the most of electronic equipment on market.When the resistance of the second resistance R2 can be set to 5k Ω ~ 7k Ω further, when the resistance of the 3rd resistance is 5k Ω ~ 7k Ω, the utility model can be applicable to the most electronic equipments on market, and its versatility will be further enhanced.When the resistance of the second resistance R2 is set to 5.6k Ω ~ 6.2k Ω, the resistance of the 3rd resistance is 5.6k Ω ~ 6.2k Ω, and versatility of the present utility model can be better.When the first triode D1 and the second triode D2 is germanium tube triode, resistance R2 and resistance R3 is 6.2k Ω, or, when the first triode D1 and the second triode D2 is silicone tube triode, resistance R2 and resistance R3 is 5.7k Ω, the technique effect that the utility model obtains can be best, and its versatility is best.
When electronic equipment audio frequency interface is GB interface, Mike's pin of electronic equipment audio frequency interface is positioned at pin 3 position, the ground pin of electronic equipment audio frequency interface is positioned at pin 4 position, in use, by adaptive device audio interface in jack that is direct or that insert electronic equipment audio frequency interface through transferring, when electronic equipment detects, second triode D2 is in cut-off state, first triode D1 is in conducting state, therefore, the voltage of base terminal to emitter terminal of the first triode D1 boosts, second resistance R2 carries out current limliting and dividing potential drop, ensure that the voltage of electronic equipment detection Umic falls into the voltage identification scope of electronic equipment audio frequency interface, thus, ensure that adaptive device audio interface and electronic equipment audio frequency interface match.
When electronic equipment audio frequency interface is American Standard interface, Mike's pin of electronic equipment audio frequency interface is positioned at pin 4 position, the ground pin of electronic equipment audio frequency interface is positioned at pin 3 position, in use, by adaptive device audio interface in jack that is direct or that insert electronic equipment audio frequency interface through transferring, when electronic equipment detects, first triode D1 is in cut-off state, second triode D2 is in conducting state, therefore, the voltage of base terminal to emitter terminal of the second triode D2 boosts, 3rd resistance R3 carries out current limliting and dividing potential drop, ensure that the voltage of electronic equipment detection Umic falls into the voltage identification scope of electronic equipment audio frequency interface, thus, ensure that adaptive device audio interface and electronic equipment audio frequency interface match.
Adapter circuit of the present utility model coordinates electronic equipment to carry out the detection of Umic voltage by resistance and triode, thus realize when adaptive device audio interface is connected with electronic equipment audio frequency interface, make Umic voltage fall into the magnitude of voltage identification range of electronic equipment audio frequency interface.The utility model goes for the electronic equipment of GB interface or American Standard interface, therefore has the advantage of highly versatile.And the utility model only adopts resistance and triode just to improve the versatility of audio adaptation apparatus, therefore has the advantage that cost is low.
The present embodiment 2 also provides a kind of electronic equipment, and this electronic equipment can comprise above-mentioned universal audio adaptive device.This electronic equipment can for intelligent cipher equipment (audio frequency KEY), earphone, audio switching device (audio interface turns the switching device of other interfaces) or other can carry out the device of transfer of data by audio interface.
Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of preferred implementation of the present utility model comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiment person of ordinary skill in the field of the present utility model.
Should be appreciated that each several part of the present utility model can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the application-specific integrated circuit (ASIC) of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the utility model can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment when not departing from principle of the present utility model and aim, revising, replacing and modification in scope of the present utility model.Scope of the present utility model is by claims and equivalency thereof.
Claims (15)
1. a universal audio adaptive device, is characterized in that, comprising: adaptive device audio interface and adapter circuit;
Described adaptive device audio interface at least comprises the first pin and the second pin, described first pin be Mike's pin or ground pin in one, described second pin be Mike's pin or ground pin in another;
Described adapter circuit at least comprises: load unit and bidirectional voltage boosting unit;
The first end of described load unit is connected with described first pin, second end of described load unit is connected with the first end of described bidirectional voltage boosting unit, second end of described bidirectional voltage boosting unit is connected with described second pin, and described bidirectional voltage boosting unit comprises the one way conducting device of reverse parallel connection.
2. universal audio adaptive device according to claim 1, is characterized in that, described load unit is the first resistance, the one way conducting device of described reverse parallel connection comprises the first diode and the second diode, and described first diode and described second diode are symmetrical arranged, wherein
The first end of described first resistance is connected with described first pin, and the second end of described first resistance is connected with the positive pole of described first diode and the negative pole of described second diode respectively;
The negative pole of described first diode is connected with described second pin;
The positive pole of described second diode is connected with described second pin.
3. universal audio adaptive device according to claim 1, is characterized in that, described load unit is the first resistance, and the one way conducting device of described reverse parallel connection is bidirectional diode, wherein,
The first end of described first resistance is connected with described first pin, and the second end of described first resistance is connected with the first end of described bidirectional diode;
Second end of described bidirectional diode is connected with described second pin.
4. the universal audio adaptive device according to Claims 2 or 3, is characterized in that,
The resistance of described first resistance is 6k Ω ~ 10k Ω.
5. universal audio adaptive device according to claim 4, is characterized in that,
The resistance of described first resistance is 7.5k Ω ~ 8.2k Ω.
6. universal audio adaptive device according to claim 2, is characterized in that, described first diode is germanium tube diode or silicone tube diode; Described second diode is germanium tube diode or silicone tube diode.
7. universal audio adaptive device according to claim 3, is characterized in that, described bidirectional diode is germanium tube bidirectional diode or silicone tube bidirectional diode.
8. an electronic equipment, is characterized in that, comprising: the universal audio adaptive device as described in any one of claim 1 to 7.
9. a universal audio adaptive device, is characterized in that, comprising: adaptive device audio interface and adapter circuit;
Described adaptive device audio interface at least comprises the first pin and the second pin, described first pin be Mike's pin or ground pin in one, described second pin be Mike's pin or ground pin in another;
Described adapter circuit at least comprises: the first adaptation unit and the second adaptation unit;
Described first adaptation unit comprises the first load component and the first boost parts, the first end of described first load component is connected with described first pin, second end of described first load component is connected with the first end of described first boost parts, and the second end of described first boost parts is connected with described second pin;
Described second adaptation unit comprises the second load component and the second boost parts, the first end of described second load component is connected with described second pin, second end of described second load component is connected with the first end of described second boost parts, and the second end of described second boost parts is connected with described first pin;
Described first boost parts is one way conducting device, and described second boost parts is one way conducting device, and two described one way conducting devices are symmetrical arranged.
10. universal audio adaptive device according to claim 9, is characterized in that, described first load component is the second resistance, described first boost parts is the first triode, and described second load component is the 3rd resistance, and described second boost parts is the second triode, wherein
The first end of described second resistance is connected with described first pin, and the second end of described second resistance is connected with the base stage of described first triode, and the emitter of described first triode is connected with described second pin;
The first end of described 3rd resistance is connected with described second pin, and the second end of described 3rd resistance is connected with the base stage of described second triode, and the emitter of described second triode is connected with described first pin.
11. universal audio adaptive devices according to claim 10, is characterized in that,
The resistance of described second resistance is 4k Ω ~ 9k Ω, and the resistance of the 3rd resistance is 4k Ω ~ 9k Ω.
12. universal audio adaptive devices according to claim 11, is characterized in that,
The resistance of described second resistance is 5k Ω ~ 7k Ω, and the resistance of described 3rd resistance is 5k Ω ~ 7k Ω.
13. universal audio adaptive devices according to claim 12, is characterized in that,
The resistance of described second resistance is 5.6k Ω ~ 6.2k Ω, and the resistance of described 3rd resistance is 5.6k Ω ~ 6.2k Ω.
14. universal audio adaptive devices according to claim 10, is characterized in that, described first triode is germanium tube triode or silicone tube triode; Second triode is germanium tube triode or silicone tube triode.
15. 1 kinds of electronic equipments, is characterized in that, comprising: the universal audio adaptive device as described in any one of claim 9 to 14.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105635904A (en) * | 2014-11-24 | 2016-06-01 | 天地融科技股份有限公司 | Universal audio adaption apparatus and electronic devices |
| WO2016082563A1 (en) * | 2014-11-24 | 2016-06-02 | 天地融科技股份有限公司 | Universal audio adapter apparatus and electronic device |
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2014
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105635904A (en) * | 2014-11-24 | 2016-06-01 | 天地融科技股份有限公司 | Universal audio adaption apparatus and electronic devices |
| WO2016082563A1 (en) * | 2014-11-24 | 2016-06-02 | 天地融科技股份有限公司 | Universal audio adapter apparatus and electronic device |
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