CN206194364U - Netted electronic drum - Google Patents
Netted electronic drum Download PDFInfo
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- CN206194364U CN206194364U CN201621158393.XU CN201621158393U CN206194364U CN 206194364 U CN206194364 U CN 206194364U CN 201621158393 U CN201621158393 U CN 201621158393U CN 206194364 U CN206194364 U CN 206194364U
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- drum
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- resistance
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Abstract
The utility model discloses a netted electronic drum, including drum, drum head, data acquisition module and data processing module, data acquisition module includes trigger and conductive medium, and conductive medium is magnetic element, magnetic element set up on the drum head, the trigger includes the hall sensor who matches with the magnetic element non -contact, the advantage is not direct contact of trigger and conductive medium, can not produce contact failure's phenomenon from this, but still can generate accurate audio signal.
Description
Technical field
The utility model is related to a kind of electronic drum, more particularly, to a kind of netted electronic drum.
Background technology
Netted electronic drum belongs to a kind of electronic percussion instrument conventional at present, generally includes drum, drum head, data acquisition module
Block and data processing module, drum head include drum circle and drum surface, and be fixedly mounted on drum surface on drum by drum circle.Drum surface is by two-layer wire side
It is laminated, data acquisition module includes trigger and transmitting medium, trigger uses piezoelectric ceramics piezo, and transmitting medium is adopted
With elastic buffer unit, elastic buffer unit positioned between lower floor's wire side and piezoelectric ceramics piezo, distinguish by elastic buffer unit
Contacted with lower floor's wire side and piezoelectric ceramics piezo, piezoelectric ceramics piezo and data processing module are connected.User's strike drum
Face produces mechanical signal, the mechanical signal to be conducted to piezoelectric ceramics piezo, piezoelectric ceramics after elastic buffer unit is buffered
Mechanical signal is converted to electric signal and is sent to data processing module by piezo, and data processing module enters to the electric signal for receiving
Row treatment generation audio signal output.
In existing netted electronic drum, as trigger piezoelectric ceramics piezo by with the elasticity as transmitting medium
The directly contact of buffer unit come receive mechanical signal so that produce electric signal, the netted electronic drum is a kind of netted electricity of contact
Son drum.The mechanical signal that elastic buffer unit transmission strike drum surface is produced, because elastic buffer unit is prepared using elastomeric material
Form, long-term compression can cause its size to change, thus with wire side loose contact, mechanical signal cannot transmit or transmit
Mechanical signal be weakened, ultimately result in the audio signal of electronic drum generation or generate bad audio signal.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of netted electronic drum, trigger in the netted electronic drum
It is not directly contacted with transmitting medium, thus without the phenomenon of generation loose contact, but remains to generate accurate audio signal.
The utility model solve the technical scheme that is used of above-mentioned technical problem for：A kind of netted electronic drum, including drum,
Drum head, data acquisition module and data processing module, described data acquisition module include trigger and transmitting medium, described
Transmitting medium is magnetic part, and described magnetic part is arranged on described drum head, described trigger include with it is described
The Hall sensor of magnetic part noncontact matching.
Described magnetic part includes magnet and cushion pad, and described cushion pad is attached to the upper surface of described magnet
On.
Described Hall sensor is arranged on the lower surface of a pcb board, and the upper surface attachment of described pcb board is flexible
Cushion.
Described magnetic part is located in described drum surface, and described Hall sensor is arranged in described drum, institute
The Hall sensor stated is located at the lower section of described magnetic part.
Described drum head includes drum circle and drum surface, and described drum surface is fixedly mounted on described drum by described drum circle
On, described drum surface is laminated by least two layers of mesh face, described magnetic part be arranged on wire side described in adjacent two layers it
Between.
Described drum surface is laminated by four-layer network face, described magnetic part be arranged on wire side described in adjacent two layers it
Between, the wire side of described magnetic part described in the adjacent two layers is clamped.
Described data processing module include shaping circuit, D/A converting circuit, control circuit, DSP data processing circuits,
Source of sound storage circuit, analog to digital conversion circuit and rear class signal amplification circuit；Described Hall sensor and described shaping circuit
Input connection, the input connection of the output end and described D/A converting circuit of described shaping circuit, described number
The input connection of the output end of analog conversion circuit and described control circuit, the output end of described control circuit and described
The input connection of DSP data processing circuits, the output end and described source of sound storage circuit of described DSP data processing circuits
Input connection, the input connection of the output end and described analog to digital conversion circuit of described source of sound storage circuit is described
Analog to digital conversion circuit output end and described rear class signal amplification circuit input connection, described rear class signal amplifies
The output end exports audio signal of circuit.
Described data processing module also includes prime signal amplification circuit, and described Hall sensor is by before described
The input connection of level signal amplification circuit and described shaping circuit, the input of described prime signal amplification circuit sum and
Described Hall sensor connection, the described output end of prime signal amplification circuit and the input of described shaping circuit connects
Connect.
Described prime signal amplification circuit includes first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th electricity
Resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity and triode；One end of the first described electric capacity is that described prime signal is put
The input of big circuit, the described other end of the first electric capacity and one end of described first resistor is connected, the first described electricity
The base stage connection of the other end of resistance, one end of described second resistance, one end of described 3rd resistor and described triode,
Power supply is accessed in one end of the other end of described second resistance, one end of the 4th described resistance and the second described electric capacity,
The other end ground connection of the second described electric capacity, the other end ground connection of described 3rd resistor, described the 4th resistance it is another
One end connection at end, the colelctor electrode of described triode and the 3rd described electric capacity, the emitter stage of described triode and described
The 5th resistance one end connection, the other end ground connection of described the 5th resistance, the other end of the 3rd described electric capacity is described
Prime signal amplification circuit output end.
Compared with prior art, the utility model has the advantage of at by drum, drum head, data acquisition module and data
The reason netted electronic drum of module composition, data acquisition module includes trigger and transmitting medium, and transmitting medium is magnetic part, magnetic
Part is arranged on drum head, and trigger includes the Hall sensor matched with magnetic part noncontact, Hall sensor and data
Processing module connect, magnetic part produce magnetic field, when tap drum head when, magnetic part produce vibrations, with Hall sensor away from
From changing, the magnetic field range that Hall sensor is sensed produces change, thus generates audio voltage signal and exports to data
Processing module, the audio voltage signal that data processing module will be received is processed, the audio signal output needed for obtaining, this
Audio voltage signal, trigger are generated by the cooperation of magnetic part and Hall sensor in the netted electronic drum of utility model
It is not directly contacted with transmitting medium, thus without the phenomenon of generation loose contact, but remains to generate accurate audio signal.Separately
Outward, when drum head is tapped, because trigger and transmitting medium are contactless, dynamics is uploaded less than drum substantially when tapping drum head
On disk, the signal of edge-triggered device is substantially can't detect, so not resulting in face string side；When drum edge is tapped,
The trigger signal at edge is very strong, and drum head will not substantially shake, and the magnetic flux of magnetic part will not change, and is passed by Hall
Sensor will not substantially generate audio voltage signal, not result in side string face；
When magnetic part includes magnet and cushion pad, when cushion pad is attached on the upper surface of magnet, it can be ensured that striking
It is not directly to tap to avoid causing mechanicalness noise on magnetic part when hitting；
When Hall sensor is arranged on the lower surface of a pcb board, when the upper surface of pcb board is attached with elastic cord breaker,
Caused by can avoiding when long-term strike drum surface drum head deformation or drum head tension force do not debug it is tight in the case of beat drum head when it is direct
Beat on pcb board and cause big mechanicalness noise；
When data processing module includes shaping circuit, D/A converting circuit, control circuit, DSP data processing circuits, source of sound
Storage circuit, analog to digital conversion circuit and rear class signal amplification circuit；The input connection of Hall sensor and shaping circuit, shaping
The input connection of the output end and D/A converting circuit of circuit, the output end of D/A converting circuit and the input of control circuit
Connection, control circuit output end and DSP data processing circuits input connection, the output end of DSP data processing circuits and
The input connection of source of sound storage circuit, the input connection of the output end and analog to digital conversion circuit of source of sound storage circuit, modulus
The input connection of the output end and rear class signal amplification circuit of change-over circuit, the output end output sound of rear class signal amplification circuit
During frequency signal, required audio is obtained after can Hall sensor be processed with the audio voltage signal that magnetic range is provided
Signal output；
When data processing module also includes prime signal amplification circuit, Hall sensor by prime signal amplification circuit and
The input connection of shaping circuit, input and the Hall sensor connection of prime signal amplification circuit sum, prime signal amplifies
When the output end of circuit and the input of shaping circuit are connected, can amplify because Hall sensor is carried with magnetic range is smaller
The less audio voltage signal for supplying, the requirement for making it meet audio input signal；
When prime signal amplification circuit includes first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the
One electric capacity, the second electric capacity, the 3rd electric capacity and triode；One end of first electric capacity is the input of prime signal amplification circuit, the
One end connection of the other end of one electric capacity and first resistor, the other end of first resistor, one end of second resistance, 3rd resistor
The base stage connection of one end and triode, one end of the other end of second resistance, one end of the 4th resistance and the second electric capacity is accessed
Power supply, the other end ground connection of the second electric capacity, the other end ground connection of 3rd resistor, the other end of the 4th resistance, the current collection of triode
One end connection of one end connection of pole and the 3rd electric capacity, the emitter stage of triode and the 5th resistance, another termination of the 5th resistance
Ground, the other end of the 3rd electric capacity for prime signal amplification circuit output end when, the circuit structure is simple, and cost is relatively low, can be with
Hall sensor is amplified with the audio voltage signal that magnetic range is provided makes it meet wanting for audio input signal
Ask.
Brief description of the drawings
Fig. 1 is the explosive view of netted electronic drum of the present utility model；
Fig. 2 is the explosive view of the drum head of netted electronic drum of the present utility model；
Fig. 3 is the sectional view of netted electronic drum of the present utility model；
Fig. 4 is the structure chart of the trigger of netted electronic drum of the present utility model；
Fig. 5 is the theory diagram of the data processing module of netted electronic drum of the present utility model in example IV；
Fig. 6 is the theory diagram of the data processing module of netted electronic drum of the present utility model in embodiment five；
Fig. 7 is the circuit diagram of the prime signal amplification circuit of netted electronic drum of the present utility model in embodiment six.
Specific embodiment
Netted electronic drum of the present utility model is described in further detail below in conjunction with accompanying drawing embodiment.
Embodiment one：As Figure 1-Figure 4, a kind of netted electronic drum, including drum 1, drum head, data acquisition module sum
According to processing module, drum head includes drum circle 2 and drum surface 3, and be fixedly mounted on drum surface 3 on drum 1 by drum circle 2, data acquisition module bag
Trigger and transmitting medium are included, drum surface 3 is laminated by four-layer network face, trigger includes pcb board 4 and under pcb board 4
The Hall sensor 5 on surface, transmitting medium is magnetic part, magnetic part be arranged on ground floor wire side and second layer wire side it
Between, magnetic part is clamped by ground floor wire side and second layer wire side, and magnetic part is located at the center of drum surface 3, and pcb board 4 is installed
In drum 1, pcb board 4 is located at the underface of magnetic part, and Hall sensor 5 is matched with magnetic part noncontact, hall sensing
Device 5 and data processing module are connected.
In the present embodiment, magnetic part includes magnet 6 and cushion pad 7, and cushion pad 7 is attached on the upper surface of magnet 6, delays
Rush pad 7 and the contact of ground floor wire side, lower surface and the second layer wire side contact of magnet 6.
In the present embodiment, the model A1388 or A1389 of Hall sensor 5.
Embodiment two：As Figure 1-Figure 4, a kind of netted electronic drum, including drum 1, drum head, data acquisition module sum
According to processing module, drum head includes drum circle 2 and drum surface 3, and be fixedly mounted on drum surface 3 on drum 1 by drum circle 2, data acquisition module bag
Trigger and transmitting medium are included, drum surface 3 is laminated by four-layer network face, trigger includes pcb board 4 and under pcb board 4
The Hall sensor 5 on surface, transmitting medium is magnetic part, magnetic part be arranged on second layer wire side and third layer wire side it
Between, magnetic part is clamped by second layer wire side and third layer wire side, and magnetic part is located at the center of drum surface 3, and pcb board 4 is installed
In drum 1, pcb board 4 is located at the underface of magnetic part, and Hall sensor 5 is matched with magnetic part noncontact, hall sensing
Device 5 and data processing module are connected.
In the present embodiment, magnetic part includes magnet 6 and elastic buffering pad 7, and cushion pad is attached to the upper surface of magnet 6
On, elastic buffering pad 7 and second layer wire side are contacted, lower surface and third layer the wire side contact of magnet 6.
In the present embodiment, the model A1388 or A1389 of Hall sensor 5.
Embodiment three：As Figure 1-Figure 4, a kind of netted electronic drum, including drum 1, drum head, data acquisition module sum
According to processing module, drum head includes drum circle 2 and drum surface 3, and be fixedly mounted on drum surface 3 on drum 1 by drum circle 2, data acquisition module bag
Trigger and transmitting medium are included, drum surface 3 is laminated by four-layer network face, trigger includes pcb board 4 and under pcb board 4
The Hall sensor 5 on surface, transmitting medium is magnetic part, magnetic part be arranged on third layer wire side and four-layer network face it
Between, magnetic part is clamped by third layer wire side and four-layer network face, and magnetic part is located at the center of drum surface 3, and pcb board 4 is installed
In drum 1, pcb board 4 is located at the underface of magnetic part, and Hall sensor 5 and data processing module are connected.
In the present embodiment, magnetic part includes magnet 6 and elastic buffering pad 7, and cushion pad is attached to the upper surface of magnet 6
On, elastic buffering pad 7 and third layer wire side are contacted, and the lower surface of magnet 6 and four-layer network face contact.
In the present embodiment, the upper surface of pcb board 4 is attached with elastic cord breaker 8.
In the present embodiment, the model A1388 or A1389 of Hall sensor 5.
Example IV：As Figure 1-Figure 4, a kind of netted electronic drum, including drum 1, drum head, data acquisition module sum
According to processing module, drum head includes drum circle 2 and drum surface 3, and be fixedly mounted on drum surface 3 on drum 1 by drum circle 2, data acquisition module bag
Trigger and transmitting medium are included, drum surface 3 is laminated by four-layer network face, trigger includes pcb board 4 and under pcb board 4
The Hall sensor 5 on surface, transmitting medium is magnetic part, magnetic part be arranged on third layer wire side and four-layer network face it
Between, magnetic part is clamped by third layer wire side and four-layer network face, and magnetic part is located at the center of drum surface 3, and pcb board 4 is installed
In drum 1, pcb board 4 is located at the underface of magnetic part, and Hall sensor 5 is matched with magnetic part noncontact, hall sensing
Device 5 and data processing module are connected.
In the present embodiment, magnetic part includes magnet 6 and elastic buffering pad 7, and cushion pad is attached to the upper surface of magnet 6
On, elastic buffering pad 7 and third layer wire side are contacted, and the lower surface of magnet 6 and four-layer network face contact.
In the present embodiment, the upper surface of pcb board 4 is attached with elastic cord breaker 8.
In the present embodiment, the model A1388 or A1389 of Hall sensor 5.
As shown in figure 5, in the present embodiment, data processing module include shaping circuit, D/A converting circuit, control circuit,
DSP data processing circuits, source of sound storage circuit, analog to digital conversion circuit and rear class signal amplification circuit；Hall sensor 5 and shaping
The input connection of the input connection of circuit, the output end of shaping circuit and D/A converting circuit, D/A converting circuit it is defeated
Go out the input connection of end and control circuit, control the input connection of the output end and DSP data processing circuits of circuit, DSP
The input connection of the output end and source of sound storage circuit of data processing circuit, the output end and analog-to-digital conversion of source of sound storage circuit
The input connection of circuit, the input connection of the output end and rear class signal amplification circuit of analog to digital conversion circuit, rear class signal
The output end exports audio signal of amplifying circuit.
Embodiment five：As Figure 1-Figure 4, a kind of netted electronic drum, including drum 1, drum head, data acquisition module sum
According to processing module, drum head includes drum circle 2 and drum surface 3, and be fixedly mounted on drum surface 3 on drum 1 by drum circle 2, data acquisition module bag
Trigger and transmitting medium are included, drum surface 3 is laminated by four-layer network face, trigger includes pcb board 4 and under pcb board 4
The Hall sensor 5 on surface, transmitting medium is magnetic part, magnetic part be arranged on second layer wire side and third layer wire side it
Between, magnetic part is clamped by second layer wire side and third layer wire side, and magnetic part is located at the center of drum surface 3, and pcb board 4 is installed
In drum 1, pcb board 4 is located at the underface of magnetic part, and Hall sensor 5 is matched with magnetic part noncontact, hall sensing
Device 5 and data processing module are connected.
In the present embodiment, magnetic part includes magnet 6 and elastic buffering pad 7, and cushion pad is attached to the upper surface of magnet 6
On, elastic buffering pad 7 and second layer wire side are contacted, lower surface and third layer the wire side contact of magnet 6.
In the present embodiment, the upper surface of pcb board 4 is attached with elastic cord breaker 8.
In the present embodiment, the model A1388 or A1389 of Hall sensor 5.
As shown in fig. 6, in the present embodiment, data processing module includes that prime signal amplification circuit, shaping circuit, digital-to-analogue turn
Change circuit, control circuit, DSP data processing circuits, source of sound storage circuit, analog to digital conversion circuit and rear class signal amplification circuit；
The input and Hall sensor 5 of prime signal amplification circuit sum are connected, and the output end of prime signal amplification circuit and shaping are electric
The input connection on road, the input connection of the output end and D/A converting circuit of shaping circuit, the output of D/A converting circuit
End and the input connection of control circuit, control the input connection of the output end and DSP data processing circuits of circuit, DSP numbers
Connected according to the output end of process circuit and the input of source of sound storage circuit, output end and the analog-to-digital conversion electricity of source of sound storage circuit
The input connection on road, the input connection of the output end and rear class signal amplification circuit of analog to digital conversion circuit, rear class signal is put
The output end exports audio signal of big circuit.
In the present embodiment, at prime signal amplification circuit, shaping circuit, D/A converting circuit, control circuit, DSP data
Reason circuit, source of sound storage circuit, analog to digital conversion circuit and rear class signal amplification circuit are using the matured product of its technical field.
Embodiment six：As Figure 1-Figure 4, a kind of netted electronic drum, including drum 1, drum head, data acquisition module sum
According to processing module, drum head includes drum circle 2 and drum surface 3, and be fixedly mounted on drum surface 3 on drum 1 by drum circle 2, data acquisition module bag
Trigger and transmitting medium are included, drum surface 3 is laminated by four-layer network face, trigger includes pcb board 4 and under pcb board 4
The Hall sensor 5 on surface, transmitting medium is magnetic part, magnetic part be arranged on second layer wire side and third layer wire side it
Between, magnetic part is clamped by second layer wire side and third layer wire side, and magnetic part is located at the center of drum surface 3, and pcb board 4 is installed
In drum 1, pcb board 4 is located at the underface of magnetic part, and Hall sensor 5 is matched with magnetic part noncontact, hall sensing
Device 5 and data processing module are connected.
In the present embodiment, magnetic part includes magnet 6 and elastic buffering pad 7, and cushion pad is attached to the upper surface of magnet 6
On, elastic buffering pad 7 and second layer wire side are contacted, lower surface and third layer the wire side contact of magnet 6.
In the present embodiment, the upper surface of pcb board 4 is attached with elastic cord breaker 8.
In the present embodiment, the model A1388 or A1389 of Hall sensor 5.
As shown in fig. 6, in the present embodiment, data processing module includes that prime signal amplification circuit, shaping circuit, digital-to-analogue turn
Change circuit, control circuit, DSP data processing circuits, source of sound storage circuit, analog to digital conversion circuit and rear class signal amplification circuit；
The input and Hall sensor 5 of prime signal amplification circuit sum are connected, and the output end of prime signal amplification circuit and shaping are electric
The input connection on road, the input connection of the output end and D/A converting circuit of shaping circuit, the output of D/A converting circuit
End and the input connection of control circuit, control the input connection of the output end and DSP data processing circuits of circuit, DSP numbers
Connected according to the output end of process circuit and the input of source of sound storage circuit, output end and the analog-to-digital conversion electricity of source of sound storage circuit
The input connection on road, the input connection of the output end and rear class signal amplification circuit of analog to digital conversion circuit, rear class signal is put
The output end exports audio signal of big circuit.
As shown in fig. 7, in the present embodiment, prime signal amplification circuit includes first resistor R1, second resistance R2, the 3rd electricity
Resistance R3, the 4th resistance R4, the 5th resistance R5, the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3 and triode Q1；First electricity
The one end for holding C1 is the input of prime signal amplification circuit, and the other end of the first electric capacity C1 and one end of first resistor R1 connect
Connect, the base stage connection of the other end of first resistor R1, one end of second resistance R2, one end of 3rd resistor R3 and triode Q1,
Power supply is accessed in one end of the other end of second resistance R2, one end of the 4th resistance R4 and the second electric capacity C2, the second electric capacity C2's
The other end is grounded, the other end of 3rd resistor R3 ground connection, the other end of the 4th resistance R4, the colelctor electrode of triode Q1 and the 3rd electricity
Hold one end connection of C3, one end connection of the emitter stage of triode Q1 and the 5th resistance R5, the other end of the 5th resistance R5 is grounded,
The other end of the 3rd electric capacity C3 is the output end of prime signal amplification circuit.
Claims (9)
1. a kind of netted electronic drum, including drum, drum head, data acquisition module and data processing module, described data acquisition
Module includes trigger and transmitting medium, it is characterised in that described transmitting medium is magnetic part, and described magnetic part sets
Put on described drum head, described trigger includes the Hall sensor matched with described magnetic part noncontact.
2. a kind of netted electronic drum according to claim 1, it is characterised in that described magnetic part is gentle including magnet
Punching pad, described cushion pad is attached on the upper surface of described magnet.
3. a kind of netted electronic drum according to claim 1, it is characterised in that described Hall sensor is arranged on a PCB
On the lower surface of plate, the upper surface of described pcb board is attached with elastic cord breaker.
4. a kind of netted electronic drum according to claim 1, it is characterised in that described magnetic part is located in drum surface, institute
The Hall sensor stated is arranged in described drum, and described Hall sensor is located at the lower section of described magnetic part.
5. a kind of netted electronic drum according to claim 1, it is characterised in that described drum head includes drum circle and drum surface, institute
Be fixedly mounted on described drum surface on described drum by the drum circle stated, and described drum surface is laminated by least two layers of mesh face,
Described magnetic part is arranged between the wire side described in adjacent two layers.
6. a kind of netted electronic drum according to claim 5, it is characterised in that described drum surface folded by four-layer network surface layer and
Into described magnetic part is set between the wire side described in adjacent two layers, and described magnetic part is described in the adjacent two layers
Wire side is clamped.
7. a kind of netted electronic drum according to claim 1, it is characterised in that described data processing module includes shaping
Circuit, D/A converting circuit, control circuit, DSP data processing circuits, source of sound storage circuit, analog to digital conversion circuit and rear class letter
Number amplifying circuit；The input connection of described Hall sensor and described shaping circuit, the output of described shaping circuit
The input of end and described D/A converting circuit is connected, the output end and described control circuit of described D/A converting circuit
Input connection, the input connection of the output end and described DSP data processing circuits of described control circuit is described
The input connection of the output end of DSP data processing circuits and described source of sound storage circuit, described source of sound storage circuit
The input connection of output end and described analog to digital conversion circuit, the output end and described rear class of described analog to digital conversion circuit
The input connection of signal amplification circuit, the output end exports audio signal of described rear class signal amplification circuit.
8. a kind of netted electronic drum according to claim 7, it is characterised in that described data processing module also includes preceding
Level signal amplification circuit, described Hall sensor is by the defeated of described prime signal amplification circuit and described shaping circuit
Enter end connection, the input of described prime signal amplification circuit sum and described Hall sensor connection, described prime letter
The input connection of the output end and described shaping circuit of number amplifying circuit.
9. a kind of netted electronic drum according to claim 8, it is characterised in that described prime signal amplification circuit includes
First resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity and three poles
Pipe；One end of the first described electric capacity is the input of described prime signal amplification circuit, described the first electric capacity it is another
One end of end and described first resistor connects, the other end of described first resistor, one end of described second resistance, described
3rd resistor one end and described triode base stage connection, the other end of described second resistance, the 4th described electricity
Power supply is accessed in one end of one end of resistance and the second described electric capacity, the other end ground connection of described the second electric capacity, and described the
The other end ground connection of three resistance, the other end of described the 4th resistance, the colelctor electrode of described triode and the 3rd described electricity
One end connection of appearance, one end connection of the emitter stage and the 5th described resistance of described triode, described the 5th resistance
The other end is grounded, and the other end of the 3rd described electric capacity is the output end of described prime signal amplification circuit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016209250346 | 2016-08-23 | ||
| CN201620925034 | 2016-08-23 |
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| Publication Number | Publication Date |
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| CN206194364U true CN206194364U (en) | 2017-05-24 |
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ID=58732113
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621158393.XU Active CN206194364U (en) | 2016-08-23 | 2016-10-25 | Netted electronic drum |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531139A (en) * | 2016-08-23 | 2017-03-22 | 宁波音王电声股份有限公司 | Netted electronic drum |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531139A (en) * | 2016-08-23 | 2017-03-22 | 宁波音王电声股份有限公司 | Netted electronic drum |
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Address after: 315005 Yinzhou District credit Road, Ningbo, Ningbo, Zhejiang Patentee after: Audio Limited by Share Ltd Address before: 315104 Zhejiang province Ningbo Yinzhou investment and entrepreneurship center 818 integrity Road Patentee before: Ningbo Soundking Electronic Co., Ltd. |