CN206547196U - A kind of boombox phase test instrument - Google Patents
A kind of boombox phase test instrument Download PDFInfo
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- CN206547196U CN206547196U CN201720183649.0U CN201720183649U CN206547196U CN 206547196 U CN206547196 U CN 206547196U CN 201720183649 U CN201720183649 U CN 201720183649U CN 206547196 U CN206547196 U CN 206547196U
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- resistance
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Abstract
The utility model is related to a kind of boombox phase test instrument, wherein the first triode T1 produces a noise signal, P1a is connected in filter circuits, second triode T2 output signals are delivered to the 5th triode T5 and exported to R channel, 3rd triode T3 is a phase shifter, and L channel is applied a signal to by the 4th triode T4.P1A and P1B are integral gang potentiometer P1, and power supply can be that 9V laminated cells are powered.Correct phase polarity judges to be carried out as follows：L the and R output ends of the circuit are connected to amplifier, and frequency is changed by rotating P1.In low frequency, the position of sound is not known；In high-frequency, sound appears in centre, improperly loudspeaker phase then effect contrast.From above-described embodiment as can be seen that advantage of the present utility model is：Reasonable in design, contributes to the phase of loudspeaker to judge.
Description
Technical field
The utility model is related to stero set technical field, more particularly to a kind of boombox phase test instrument.
Background technology
In stereo component system, it is necessary to check loudspeaker phase whether by it is reversed the problem of because generally connecting line
There is no polarity differentiation, if reversed use the normal of extreme influence loudspeaker, serious even can burn out circuit.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of boombox phase test instrument, existing to solve
Deficiency in technology.
In order to achieve the above object, the purpose of this utility model is achieved through the following technical solutions：
A kind of boombox phase test instrument, including first resistor, second resistance, 3rd resistor, the 4th electricity are provided
Resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, the 11st resistance, the 12nd electricity
Resistance, the 13rd resistance, the 14th resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the 6th electricity
Appearance, the 7th electric capacity, the 8th electric capacity, the 9th electric capacity, the tenth electric capacity, the first triode, the second triode, the 3rd triode, the 4th
Triode, the 5th triode, the first variable resistor and the second adjustable resistance, the 7th electric capacity, the 8th electric capacity, described
Nine electric capacity and the tenth electric capacity are electrochemical capacitor, first triode, second triode, the three or three pole
Pipe, the 4th triode and the 5th triode are NPN type triode, the colelctor electrode and base of first triode
Pole, the brush of first variable resistor, the emitter stage of second triode, one end of the 6th resistance, the described 8th
One end of resistance, the negative pole of the 7th electric capacity, one end of the 11st resistance, one end of the 14th resistance and described
8th electric capacity negative pole ground connection, one end of the first resistor, one end of the 4th resistance, one end of the 5th resistance,
One end, one end of the 9th resistance and one end of the 12nd resistance of 7th resistance connect external power source respectively, institute
The other end for stating first resistor connects one end of first electric capacity and the emitter stage of first triode, first electricity respectively
Appearance, second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity and the 3rd triode connect successively
Connect, the second resistance is connected between first electric capacity and the 4th resistance, described in another termination of first electric capacity
The base stage of second triode, the 3rd resistor and first variable resistor are connected across second electric capacity and the 4th electricity
Between appearance, the other end of the 4th resistance connects between the 4th electric capacity and the 5th electric capacity respectively, the two or three pole
The colelctor electrode of pipe, the other end of the 5th resistance connects the base stage of the 3rd triode, the base of the 5th triode respectively
Pole and the other end of the 6th resistance, the emitter stage of the 3rd triode connect one end of the 6th electric capacity and described respectively
The other end of 8th resistance, the other end of the 6th electric capacity connects one end and the described 4th 3 of the second adjustable resistance respectively
The base stage of pole pipe, the other end of the 7th resistance connects the colelctor electrode and the second adjustable resistance of the 3rd triode respectively
The other end, the other end of the 9th resistance connects the positive pole of the 9th electric capacity and the current collection of the 4th triode respectively
Pole, the other end of the 12nd resistance connects the positive pole of the tenth electric capacity and the colelctor electrode of the 5th triode, institute respectively
The emitter stage, the tenth resistance and the 11st resistance for stating the 4th triode are sequentially connected, the hair of the 5th triode
Emitter-base bandgap grading, the 13rd resistance and the 14th resistance are sequentially connected, and it is L ends that the negative pole of the 9th electric capacity, which stretches out, described
It is R ends that the negative pole of tenth electric capacity, which stretches out, and the 7th electric capacity and the 11st resistance simultaneously connect, the 8th electric capacity and described the
14 resistance simultaneously connect.
Above-mentioned boombox phase test instrument, wherein, first triode, second triode, described
Three triodes, the 4th triode and the 5th triode use BC547B.
Compared with the prior art, the beneficial effects of the utility model are：
Reasonable in design, contributes to the phase of loudspeaker to judge.
Brief description of the drawings
Constitute a part of accompanying drawing of the present utility model to be used for providing further understanding to of the present utility model, this practicality is new
The schematic description and description of type is used to explain the utility model, does not constitute to improper restriction of the present utility model.
In accompanying drawing：
Fig. 1 shows the electrical block diagram of the utility model boombox phase test instrument.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
With reference to shown in Fig. 1, the utility model boombox phase test instrument includes first resistor R1, second resistance
R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th resistance
R9, the tenth resistance R10, the 11st resistance R11, the 12nd resistance R12, the 13rd resistance R13, the 14th resistance R14, the first electricity
Hold C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4, the 5th electric capacity C5, the 6th electric capacity C6, the 7th electric capacity C7, the 8th electricity
Hold C8, the 9th electric capacity C9, the tenth electric capacity C10, the first triode T1, the second triode T2, the 3rd triode T3, the 4th triode
T4, the 5th triode T5, the first variable resistor P1a and the second adjustable resistance P1b, the 7th electric capacity C7, the 8th electric capacity C8, the 9th electricity
It is electrochemical capacitor to hold C9 and the tenth electric capacity C10, the first triode T1, the second triode T2, the 3rd triode T3, the four or three pole
Pipe T4 and the 5th triode T5 is NPN type triode, the first triode T1 colelctor electrode and base stage, the first variable resistor P1a
Brush, the second triode T2 emitter stage, the 6th resistance R6 one end, the 8th resistance R8 one end, the 7th electric capacity C7 it is negative
Pole, the 11st resistance R11 one end, the 14th resistance R14 one end and the 8th electric capacity C8 negative pole ground connection, first resistor R1's
One end, the 4th resistance R4 one end, the 5th resistance R5 one end, the 7th resistance R7 one end, the 9th resistance R9 one end and
12 resistance R12 one end connects external power source (+9V) respectively, and the first resistor R1 other end connects the first electric capacity C1 one end respectively
With the first triode T1 emitter stage, the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4, the 5th electric capacity C5
It is sequentially connected with the 3rd triode T3, second resistance R2 is connected between the first electric capacity C1 and the 4th resistance R4, the first electric capacity C1's
The second triode T2 of another termination base stage, 3rd resistor R3 and the first variable resistor P1a are connected across the second electric capacity C2 and the 4th
Between electric capacity C4, the 4th resistance R4 other end connects between the 4th electric capacity C4 and the 5th electric capacity C5 respectively, the second triode T2
Colelctor electrode, the 5th resistance R5 other end connects the 3rd triode T3 base stage, the 5th triode T5 base stage and the 6th electricity respectively
The R6 other end is hindered, the 3rd triode T3 emitter stage connects the 6th electric capacity C6 one end and the 8th resistance R8 other end respectively,
The 6th electric capacity C6 other end connects the second adjustable resistance P1b one end and the 4th triode T4 base stage, the 7th resistance R7 respectively
The other end connect the 3rd triode T3 colelctor electrode and the second adjustable resistance P1b other end respectively, the 9th resistance R9's is another
End connects the 9th electric capacity C9 positive pole and the 4th triode T4 colelctor electrode respectively, and the 12nd resistance R12 other end connects the respectively
Ten electric capacity C10 positive pole and the 5th triode T5 colelctor electrode, the 4th triode T4 emitter stage, the tenth resistance R10 and the tenth
One resistance R11 is sequentially connected, and the 5th triode T5 emitter stage, the 13rd resistance R13 and the 14th resistance R14 are sequentially connected,
It is L ends that 9th electric capacity C9 negative pole, which stretches out, and it is R ends, the 7th electric capacity C7 and the 11st resistance that the tenth electric capacity C10 negative pole, which stretches out,
R11 simultaneously connects, and the 8th electric capacity C8 and the 14th resistance R14 simultaneously connect.
In the technical program, the first triode T1, the second triode T2, the 3rd triode T3, the 4th triode T4 and
Five triode T5 use BC547B, wherein the first triode T1 produces a noise signal, P1a is connected in filter circuits,
Second triode T2 output signals are delivered to the 5th triode T5 and exported to R channel, and the 3rd triode T3 is a phase shifter, lead to
Cross the 4th triode T4 and apply a signal to L channel.P1A and P1B are integral gang potentiometer P1, and power supply can be that 9V is folded
Layer battery is powered.Correct phase polarity judges to be carried out as follows：L the and R output ends of the circuit are connected to amplifier, by turning
Dynamic P1 changes frequency.In low frequency, the position of sound is not known；In high-frequency, sound appears in centre, improperly raises one's voice
Device phase then effect contrast.
From above-described embodiment as can be seen that advantage of the present utility model is：
Reasonable in design, contributes to the phase of loudspeaker to judge.
Specific embodiment of the utility model is described in detail above, but the utility model is not restricted to the above
The specific embodiment of description, it is intended only as example.To those skilled in the art, any equivalent modifications and substitute also all
Among category of the present utility model.Therefore, the impartial conversion made in the case where not departing from spirit and scope of the present utility model
And modification, it should all cover in the range of the utility model.
Claims (2)
1. a kind of boombox phase test instrument, it is characterised in that including first resistor, second resistance, 3rd resistor,
Four resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, the 11st resistance, the tenth
Two resistance, the 13rd resistance, the 14th resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity,
Six electric capacity, the 7th electric capacity, the 8th electric capacity, the 9th electric capacity, the tenth electric capacity, the first triode, the second triode, the 3rd triode,
4th triode, the 5th triode, the first variable resistor and the second adjustable resistance, the 7th electric capacity, the 8th electric capacity, institute
It is electrochemical capacitor to state the 9th electric capacity and the tenth electric capacity, first triode, second triode, the described 3rd 3
Pole pipe, the 4th triode and the 5th triode are NPN type triode, the colelctor electrode and base of first triode
Pole, the brush of first variable resistor, the emitter stage of second triode, one end of the 6th resistance, the described 8th
One end of resistance, the negative pole of the 7th electric capacity, one end of the 11st resistance, one end of the 14th resistance and described
8th electric capacity negative pole ground connection, one end of the first resistor, one end of the 4th resistance, one end of the 5th resistance,
One end, one end of the 9th resistance and one end of the 12nd resistance of 7th resistance connect external power source respectively, institute
The other end for stating first resistor connects one end of first electric capacity and the emitter stage of first triode, first electricity respectively
Appearance, second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity and the 3rd triode connect successively
Connect, the second resistance is connected between first electric capacity and the 4th resistance, described in another termination of first electric capacity
The base stage of second triode, the 3rd resistor and first variable resistor are connected across second electric capacity and the 4th electricity
Between appearance, the other end of the 4th resistance connects between the 4th electric capacity and the 5th electric capacity respectively, the two or three pole
The colelctor electrode of pipe, the other end of the 5th resistance connects the base stage of the 3rd triode, the base of the 5th triode respectively
Pole and the other end of the 6th resistance, the emitter stage of the 3rd triode connect one end of the 6th electric capacity and described respectively
The other end of 8th resistance, the other end of the 6th electric capacity connects one end and the described 4th 3 of the second adjustable resistance respectively
The base stage of pole pipe, the other end of the 7th resistance connects the colelctor electrode and the second adjustable resistance of the 3rd triode respectively
The other end, the other end of the 9th resistance connects the positive pole of the 9th electric capacity and the current collection of the 4th triode respectively
Pole, the other end of the 12nd resistance connects the positive pole of the tenth electric capacity and the colelctor electrode of the 5th triode, institute respectively
The emitter stage, the tenth resistance and the 11st resistance for stating the 4th triode are sequentially connected, the hair of the 5th triode
Emitter-base bandgap grading, the 13rd resistance and the 14th resistance are sequentially connected, and it is L ends that the negative pole of the 9th electric capacity, which stretches out, described
It is R ends that the negative pole of tenth electric capacity, which stretches out, and the 7th electric capacity and the 11st resistance simultaneously connect, the 8th electric capacity and described the
14 resistance simultaneously connect.
2. boombox phase test instrument as claimed in claim 1, it is characterised in that first triode, described
Two triodes, the 3rd triode, the 4th triode and the 5th triode use BC547B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720183649.0U CN206547196U (en) | 2017-02-28 | 2017-02-28 | A kind of boombox phase test instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720183649.0U CN206547196U (en) | 2017-02-28 | 2017-02-28 | A kind of boombox phase test instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206547196U true CN206547196U (en) | 2017-10-10 |
Family
ID=59994210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720183649.0U Expired - Fee Related CN206547196U (en) | 2017-02-28 | 2017-02-28 | A kind of boombox phase test instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206547196U (en) |
-
2017
- 2017-02-28 CN CN201720183649.0U patent/CN206547196U/en not_active Expired - Fee Related
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171010 Termination date: 20210228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |