CN204360373U - A kind of musical instrument digital interface with USB flash disk function - Google Patents
A kind of musical instrument digital interface with USB flash disk function Download PDFInfo
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- CN204360373U CN204360373U CN201420837552.3U CN201420837552U CN204360373U CN 204360373 U CN204360373 U CN 204360373U CN 201420837552 U CN201420837552 U CN 201420837552U CN 204360373 U CN204360373 U CN 204360373U
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Abstract
The utility model discloses a kind of musical instrument digital interface with USB flash disk function, comprise input socket, MIDI main body circuit and output socket, the signal input part of MIDI main body circuit is connected with input socket, the signal output part of MIDI main body circuit is connected with output socket, also comprise USB interface and USB flash disk, MIDI main body circuit is connected with USB interface, and USB interface is connected with USB flash disk; Advantage is that this musical instrument digital interface by carrying out exchanges data between USB interface and USB flash disk, realizing the basis of music information exchange, also with USB flash disk, can have data storage function, can realize the exchange of remote music information.
Description
Technical field
The utility model relates to a kind of musical instrument digital interface, especially relates to a kind of musical instrument digital interface with USB flash disk function.
Background technology
Musical instrument digital interface (MIDI, Musical Instrument Digital Interface) can realize the exchange of music information between electronic musical instrument and electronic musical instrument, between electronic musical instrument and computer, is widely used.But the function ratio of existing musical instrument digital interface is more single, only can realize the exchange of in-plant music information, the music information of the equipment making such as electronic musical instrument or computing machine cannot be carried away at any time, not possess other functions.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of musical instrument digital interface with USB flash disk function, this musical instrument digital interface is realizing the basis of music information exchange, also with USB flash disk, there is data storage function, the exchange of remote music information can be realized.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of musical instrument digital interface with USB flash disk function, comprise input socket, MIDI main body circuit and output socket, the signal input part of described MIDI main body circuit is connected with described input socket, the signal output part of described MIDI main body circuit is connected with described output socket, also comprise USB interface and USB flash disk, described MIDI main body circuit is connected with described USB interface, and described USB interface is connected with described USB flash disk.
In described MIDI main body circuit comprises input circuit module, output circuit module, usb circuit module, model are MFM0860 the first chip and peripheral circuit; Described input circuit module is connected with described input socket and the first described chip respectively, described output circuit module is connected with described output socket and the first described chip respectively, and described usb circuit module is connected with the first described chip and USB interface respectively.
Described input socket is the socket with 2 PIN, described input circuit module comprises the second chip that model is FODM121C, first resistance, second resistance and the first diode, one end of the first described resistance, the negative electrode of the first described diode is connected with the 1st pin of the second described chip, the other end of the first described resistance is connected with the 2nd of described input socket the PIN, the anode of the first described diode, 2nd pin of the second described chip is connected with the 1st PIN of described input socket, 4th pin of the second described chip, one end of the second described resistance is connected with the 5th pin of the first described chip, the other end access power supply of the second described resistance, 3rd pin ground connection of the second described chip.
Described output socket is the socket with 3 PIN, and described output circuit module comprises the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the first triode and the second triode, one end of the 3rd described resistance is connected with the 6th pin of the first described chip, the other end of the 3rd described resistance is connected with the base stage of the first described triode, the collector of the first described triode, the base stage of the second described triode is connected with one end of the 4th described resistance, power supply is all accessed in the other end of the 4th described resistance and one end of the 6th described resistance, the collector of the second described triode is connected with one end of the 5th described resistance, the other end of the 5th described resistance is connected with the 3rd PIN of described output socket, the other end of the 6th described resistance is connected with the 2nd PIN of described output socket, 1st PIN of described output socket, the emitter of the first described triode and the equal ground connection of emitter of the second described triode.
Described usb circuit module comprises the 7th resistance, 8th resistance, first electric capacity, second electric capacity, 3rd electric capacity and the 4th electric capacity, one end of the 7th described resistance is connected with the 19th pin of the first described chip, one end of the 8th described resistance is connected with the 18th pin of the first described chip, the other end of the 7th described resistance, one end of the second described electric capacity is connected with the 3rd pin of described USB interface, the other end of the 8th described resistance, one end of the first described electric capacity is connected with the 2nd pin of described USB interface, the other end of the first described electric capacity, the other end of the second described electric capacity, one end of the 3rd described electric capacity, one end of the 4th described electric capacity is connected and its link ground connection with the 4th pin of described USB interface, the other end of the 3rd described electric capacity, the other end of the 4th described electric capacity is connected with the 1st pin of described USB interface and its link access power supply.
Described peripheral circuit comprises the 9th resistance, the tenth resistance, the second diode, the 3rd diode, crystal oscillator, the 5th electric capacity, the 6th electric capacity and the 7th electric capacity, one end of the 9th described resistance is connected with the 7th pin of the first described chip, the other end of the 9th described resistance is connected with the negative electrode of the second described diode, one end of the tenth described resistance is connected with the 8th pin of the first described chip, the other end of the tenth described resistance is connected with the negative electrode of the 3rd described diode, the anode of the second described diode, the anode of the 3rd described diode, 1st pin of the first described chip, power supply is all accessed in one end of the 5th described electric capacity and one end of the 6th described electric capacity, 2nd pin of the first described chip is connected with one end of described crystal oscillator, the other end of described crystal oscillator is connected with the 3rd pin of the first described chip, 20th pin of the first described chip is connected with one end of the 7th described electric capacity, the other end of the 5th described electric capacity, the other end of the 6th described electric capacity, the other end of the 7th described electric capacity and the equal ground connection of the 4th pin of the first described chip.
Compared with prior art, the utility model has the advantage of by arranging USB interface and USB flash disk, MIDI main body circuit is connected with USB interface, USB interface is connected with USB flash disk, this musical instrument digital interface can by carrying out exchanges data between USB interface and USB flash disk, and the basis realizing music information and exchange, also with USB flash disk, there is data storage function, the exchange of remote music information can be realized.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is the circuit diagram of MIDI main body circuit of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
Embodiment: as shown in Figure 1, a kind of musical instrument digital interface with USB flash disk function, comprise input socket P1, MIDI main body circuit and output socket P2, the signal input part of MIDI main body circuit is connected with input socket P1, the signal output part of MIDI main body circuit is connected with output socket P2, also comprise USB interface P3 and USB flash disk, MIDI main body circuit is connected with USB interface P3, and USB interface P3 is connected with USB flash disk.
The first chip U1 and peripheral circuit that as shown in Figure 2, in the present embodiment, MIDI main body circuit comprises input circuit module 1, output circuit module 2, usb circuit module 3, model are MFM0860; Input circuit module 1 is connected with input socket P1 and the first chip U1 respectively, and output circuit module 2 is connected with output socket P2 and the first chip U1 respectively, and usb circuit module 3 is connected with the first chip U1 and USB interface P3 respectively.
In the present embodiment, input socket P1 is the socket with 2 PIN, input circuit module 1 comprises the second chip U2 that model is FODM121C, first resistance R1, second resistance R2 and the first diode D1, one end of first resistance R1, the negative electrode of the first diode D1 is connected with the 1st pin of the second chip U2, the other end of the first resistance R1 is connected with the 2nd of input socket P1 the PIN, the anode of the first diode D1, 2nd pin of the second chip U2 is connected with the 1st PIN of input socket P1, 4th pin of the second chip U2, one end of second resistance R2 is connected with the 5th pin of the first chip U1, the other end access power supply of the second resistance R2, the 3rd pin ground connection of the second chip U2.
In the present embodiment, output socket P2 is the socket with 3 PIN, and output circuit module 2 comprises the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the first triode Q1 and the second triode Q2, one end of 3rd resistance R3 is connected with the 6th pin of the first chip U1, the other end of the 3rd resistance R3 is connected with the base stage of the first triode Q1, the collector of the first triode Q1, the base stage of the second triode Q2 is connected with one end of the 4th resistance R4, power supply is all accessed in the other end of the 4th resistance R4 and one end of the 6th resistance R6, the collector of the second triode Q2 is connected with one end of the 5th resistance R5, the other end of the 5th resistance R5 is connected with the 3rd of output socket P2 the PIN, the other end of the 6th resistance R6 is connected with the 2nd of output socket P2 the PIN, 1st PIN of output socket P2, the emitter of the first triode Q1 and the equal ground connection of emitter of the second triode Q2.
In the present embodiment, usb circuit module 3 comprises the 7th resistance R7, 8th resistance R8, first electric capacity C1, second electric capacity C2, 3rd electric capacity C3 and the 4th electric capacity C4, one end of 7th resistance R7 is connected with the 19th pin of the first chip U1, one end of 8th resistance R8 is connected with the 18th pin of the first chip U1, the other end of the 7th resistance R7, one end of second electric capacity C2 is connected with the 3rd pin of USB interface P3, the other end of the 8th resistance R8, one end of first electric capacity C1 is connected with the 2nd pin of USB interface P3, the other end of the first electric capacity C1, the other end of the second electric capacity C2, one end of 3rd electric capacity C3, one end of 4th electric capacity C4 is connected and its link ground connection with the 4th pin of USB interface P3, the other end of the 3rd electric capacity C3, the other end of the 4th electric capacity C4 is connected with the 1st pin of USB interface P3 and its link access power supply.
In the present embodiment, peripheral circuit comprises the 9th resistance R9, the tenth resistance R10, the second diode D2, the 3rd diode D3, crystal oscillator Y1, the 5th electric capacity C5, the 6th electric capacity C6 and the 7th electric capacity C7, one end of 9th resistance R9 is connected with the 7th pin of the first chip U1, the other end of the 9th resistance R9 is connected with the negative electrode of the second diode D2, one end of tenth resistance R10 is connected with the 8th pin of the first chip U1, the other end of the tenth resistance R10 is connected with the negative electrode of the 3rd diode D3, the anode of the second diode D2, the anode of the 3rd diode D3, 1st pin of the first chip U1, power supply is all accessed in one end of 5th electric capacity C5 and one end of the 6th electric capacity C6, 2nd pin of the first chip U1 is connected with one end of crystal oscillator Y1, the other end of crystal oscillator Y1 is connected with the 3rd pin of the first chip U1, 20th pin of the first chip U1 is connected with one end of the 7th electric capacity C7, the other end of the 5th electric capacity C5, the other end of the 6th electric capacity C6, the other end of the 7th electric capacity C7 and the equal ground connection of the 4th pin of the first chip U1, second diode D2 and the 3rd diode D3 is light emitting diode.
Claims (6)
1. the musical instrument digital interface with USB flash disk function, comprise input socket, MIDI main body circuit and output socket, the signal input part of described MIDI main body circuit is connected with described input socket, the signal output part of described MIDI main body circuit is connected with described output socket, characterized by further comprising USB interface and USB flash disk, described MIDI main body circuit is connected with described USB interface, and described USB interface is connected with described USB flash disk.
2. a kind of musical instrument digital interface with USB flash disk function according to claim 1, is characterized in that described MIDI main body circuit comprises input circuit module, output circuit module, usb circuit module, model are MFM0860 the first chip and peripheral circuit; Described input circuit module is connected with described input socket and the first described chip respectively, described output circuit module is connected with described output socket and the first described chip respectively, and described usb circuit module is connected with the first described chip and USB interface respectively.
3. a kind of musical instrument digital interface with USB flash disk function according to claim 2, it is characterized in that described input socket is the socket with 2 PIN, described input circuit module comprises the second chip that model is FODM121C, first resistance, second resistance and the first diode, one end of the first described resistance, the negative electrode of the first described diode is connected with the 1st pin of the second described chip, the other end of the first described resistance is connected with the 2nd of described input socket the PIN, the anode of the first described diode, 2nd pin of the second described chip is connected with the 1st PIN of described input socket, 4th pin of the second described chip, one end of the second described resistance is connected with the 5th pin of the first described chip, the other end access power supply of the second described resistance, 3rd pin ground connection of the second described chip.
4. a kind of musical instrument digital interface with USB flash disk function according to claim 2, it is characterized in that described output socket is the socket with 3 PIN, described output circuit module comprises the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the first triode and the second triode, one end of the 3rd described resistance is connected with the 6th pin of the first described chip, the other end of the 3rd described resistance is connected with the base stage of the first described triode, the collector of the first described triode, the base stage of the second described triode is connected with one end of the 4th described resistance, power supply is all accessed in the other end of the 4th described resistance and one end of the 6th described resistance, the collector of the second described triode is connected with one end of the 5th described resistance, the other end of the 5th described resistance is connected with the 3rd PIN of described output socket, the other end of the 6th described resistance is connected with the 2nd PIN of described output socket, 1st PIN of described output socket, the emitter of the first described triode and the equal ground connection of emitter of the second described triode.
5. a kind of musical instrument digital interface with USB flash disk function according to claim 2, it is characterized in that described usb circuit module comprises the 7th resistance, 8th resistance, first electric capacity, second electric capacity, 3rd electric capacity and the 4th electric capacity, one end of the 7th described resistance is connected with the 19th pin of the first described chip, one end of the 8th described resistance is connected with the 18th pin of the first described chip, the other end of the 7th described resistance, one end of the second described electric capacity is connected with the 3rd pin of described USB interface, the other end of the 8th described resistance, one end of the first described electric capacity is connected with the 2nd pin of described USB interface, the other end of the first described electric capacity, the other end of the second described electric capacity, one end of the 3rd described electric capacity, one end of the 4th described electric capacity is connected and its link ground connection with the 4th pin of described USB interface, the other end of the 3rd described electric capacity, the other end of the 4th described electric capacity is connected with the 1st pin of described USB interface and its link access power supply.
6. a kind of musical instrument digital interface with USB flash disk function according to claim 2, is characterized in that described peripheral circuit comprises the 9th resistance, the tenth resistance, the second diode, the 3rd diode, crystal oscillator, the 5th electric capacity, the 6th electric capacity and the 7th electric capacity, one end of the 9th described resistance is connected with the 7th pin of the first described chip, the other end of the 9th described resistance is connected with the negative electrode of the second described diode, one end of the tenth described resistance is connected with the 8th pin of the first described chip, the other end of the tenth described resistance is connected with the negative electrode of the 3rd described diode, the anode of the second described diode, the anode of the 3rd described diode, 1st pin of the first described chip, power supply is all accessed in one end of the 5th described electric capacity and one end of the 6th described electric capacity, 2nd pin of the first described chip is connected with one end of described crystal oscillator, the other end of described crystal oscillator is connected with the 3rd pin of the first described chip, 20th pin of the first described chip is connected with one end of the 7th described electric capacity, the other end of the 5th described electric capacity, the other end of the 6th described electric capacity, the other end of the 7th described electric capacity and the equal ground connection of the 4th pin of the first described chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420837552.3U CN204360373U (en) | 2014-12-25 | 2014-12-25 | A kind of musical instrument digital interface with USB flash disk function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420837552.3U CN204360373U (en) | 2014-12-25 | 2014-12-25 | A kind of musical instrument digital interface with USB flash disk function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204360373U true CN204360373U (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420837552.3U Expired - Fee Related CN204360373U (en) | 2014-12-25 | 2014-12-25 | A kind of musical instrument digital interface with USB flash disk function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204360373U (en) |
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2014
- 2014-12-25 CN CN201420837552.3U patent/CN204360373U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20171225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |