CN209642952U - A kind of accessory device of simulation signal generator - Google Patents
A kind of accessory device of simulation signal generator Download PDFInfo
- Publication number
- CN209642952U CN209642952U CN201920742079.3U CN201920742079U CN209642952U CN 209642952 U CN209642952 U CN 209642952U CN 201920742079 U CN201920742079 U CN 201920742079U CN 209642952 U CN209642952 U CN 209642952U
- Authority
- CN
- China
- Prior art keywords
- circuit
- output circuit
- connect
- receiving module
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Amplifiers (AREA)
Abstract
The utility model discloses a kind of accessory devices of simulation signal generator, including bluetooth receiver board, receiving module, in put demodulator circuit, first low puts output circuit, level-one vacuum tube amplifying circuit, cathode follows output circuit, rear class pushes circuit and output transformer, the bluetooth receiver board is connect with receiving module, demodulator circuit one end is put in described to connect with receiving module, the other end is low with first to be put output circuit and connect, the termination of level-one vacuum amplifying circuit one first is low to put output circuit, another termination cathode follows output circuit, the rear class pushes a termination cathode to follow output circuit, another termination exports transformer.The acquisition coupling of bluetooth intermediate-freuqncy signal is sent to vacuum tube anode launching electronics beam and obtains ideal standard sine wave test sound source signal, the noise signal that dominant frequency generates when by reducing bluetooth radiation test ensures that harmonic component meets limit value requirement, there is no linear distortion, realizes test zero interference.
Description
Technical field
The utility model relates to accurate testing source of sound technical field more particularly to a kind of accessory devices of simulation signal generator.
Background technique
At present generally to the test of audio playing apparatus, to the left and right acoustic channels of audio playing apparatus when being by playing sound
It is tested, as long as can hear that L channel or right channel make a sound and be judged as normal, but such test can not detect
Out because of circuit question, and make L channel or right channel sound size are uneven, when playing noise or the output of left and right acoustic channels sound with
The problem of different sizes of sound provided by sound source.
Utility model content
The noise signal that dominant frequency generates when the utility model is provided by reducing bluetooth radiation test ensures that harmonic component is full
Sufficient limit value requirement realizes test zero interference without linear distortion.For this purpose, the utility model discloses a kind of simulation signal generators
Accessory device, including bluetooth receiver board, receiving module, in put demodulator circuit, first it is low put output circuit, level-one vacuum tube amplification
Circuit, cathode follow output circuit, rear class to push circuit and output transformer, and the bluetooth receiver board is connect with receiving module,
It puts demodulator circuit one end in described to connect with receiving module, the other end is connect with low output circuit of putting, the level-one vacuum amplification
Circuit on one side connect it is low put output circuit, another termination cathode follows output circuit, and it is defeated that the rear class pushes a termination cathode to follow
Circuit out, another termination export transformer.
It further says, the bluetooth receiver board includes antenna input circuit, RF receiving module, demodulation circuit of intermediate frequency,
Two it is low put output circuit and rear class power amplifier, the antenna input circuit is connect with RF receiving module, intermediate frequency demodulation electricity
Road one end is connect with RF receiving module, and the other end is low with second to be put output circuit and connect, and the rear class power amplifier is low with second
Put output circuit connection.
It further says, the model BC6140 of the bluetooth receiver board.
It further says, which further includes loudspeaker load, and the loudspeaker load is connect with output transformer.
It further says, the level-one vacuum tube amplifying circuit includes vacuum suppressor grid tube, rear class power tube, output transformation
Device, main transformer, genotron and hv filtering inductance amplify when signal inputs voltage order one from the vacuum suppressor grid tube,
Loudspeaker load is given in output after being put into output transformer using rear class power tube is low, and the hv filtering inductance is used to drop ripple,
For the main transformer for powering, point five groups of outputs, the output transformer is used for isolation coupling audio output.
The utility model has the beneficial effects that:
The utility model discloses a kind of accessory device of simulation signal generator, including bluetooth receiver board, receiving module, in put
Demodulator circuit, first it is low put output circuit, level-one vacuum tube amplifying circuit, cathode follow output circuit, rear class push circuit and
Export transformer, the bluetooth receiver board connect with receiving module, it is described in put demodulator circuit one end and connect with receiving module, separately
One end is connect with low output circuit of putting, the level-one vacuum amplifying circuit one terminate it is low put output circuit, another termination cathode with
With output circuit, the rear class pushes a termination cathode to follow output circuit, and another termination exports transformer.Bluetooth intermediate-freuqncy signal
Acquisition coupling is sent to vacuum tube anode launching electronics beam and obtains ideal standard sine wave test sound source signal, by reducing bluetooth
The noise signal that dominant frequency generates when radiation test ensures that harmonic component meets limit value requirement, without linear distortion, realizes test zero
Interference.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment combination attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is the one of the utility model
A little embodiments for those skilled in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is a kind of flow diagram of the accessory device of simulation signal generator of the utility model；
Fig. 2 is the flow diagram of bluetooth receiver board in a kind of accessory device of simulation signal generator of the utility model；
Fig. 3 is the circuit theory of level-one vacuum tube amplifying circuit in a kind of accessory device of simulation signal generator of the utility model
Figure.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
Fig. 1-3 is please referred to, is a kind of accessory device structure chart of simulation signal generator disclosed in the present embodiment, including bluetooth connects
Receive plate, receiving module, in put demodulator circuit, first it is low put output circuit, level-one vacuum tube amplifying circuit, cathode follow output electricity
Road, rear class push circuit and output transformer, and the bluetooth receiver board connect with receiving module, it is described in put demodulator circuit one end
It is connect with receiving module, the other end is connect with low output circuit of putting, and the level-one vacuum amplifying circuit one terminates low put and exports electricity
Road, another termination cathode follow output circuit, and the rear class pushes a termination cathode to follow output circuit, and another termination output becomes
Depressor.
In the present embodiment, the bluetooth receiver board include antenna input circuit, RF receiving module, demodulation circuit of intermediate frequency,
Second it is low put output circuit and rear class power amplifier, the antenna input circuit is connect with RF receiving module, the intermediate frequency demodulation
Circuit on one side is connect with RF receiving module, and the other end is low with second to be put output circuit and connect, the rear class power amplifier and second
It is low to put output circuit connection.
In the present embodiment, the model BC6140 of the bluetooth receiver board.
In the present embodiment, which further includes loudspeaker load, and the loudspeaker load is connect with output transformer.
In the present embodiment, the level-one vacuum tube amplifying circuit include vacuum suppressor grid tube 717A, rear class power tube 45,
Export transformer H-20-7U, main transformer PT-160, genotron 80 and hv filtering inductance PCM-1006H, when signal from
The vacuum suppressor grid tube 717A input voltage order one amplification is put into output transformer H-20-7U using rear class power tube 45 is low
After export and give loudspeaker load, the hv filtering inductance PCM-1006H is for dropping ripple, and the main transformer PT-160 is for supplying
Electricity, point five groups of outputs, the output transformer H-20-7U are used for isolation coupling audio output.
Above-described is only the embodiments of the present invention, and the common sense such as well known specific structure and characteristic are herein in scheme
It does not describe excessively.It should be pointed out that for those skilled in the art, in the premise for not departing from the utility model structure
Under, several modifications and improvements can also be made.These also should be considered as the protection scope of the utility model, these all will not influence
The effect and patent practicability that the utility model is implemented.This application claims protection scope should be with the content of its claim
Subject to, the records such as specific embodiment in specification can be used for explaining the content of claim.
Claims (5)
1. a kind of accessory device of simulation signal generator, which is characterized in that including bluetooth receiver board, receiving module, in put demodulation electricity
Road, the first low output circuit, level-one vacuum tube amplifying circuit, cathode put follow output circuit, rear class that circuit and output is pushed to become
Depressor, the bluetooth receiver board are connect with receiving module, it is described in put demodulator circuit one end and connect with receiving module, the other end with
First low output circuit of putting connects, and the termination of level-one vacuum amplifying circuit one first is low to put output circuit, another termination cathode
Output circuit is followed, the rear class pushes a termination cathode to follow output circuit, and another termination exports transformer.
2. a kind of accessory device of simulation signal generator as described in claim 1, which is characterized in that the bluetooth receiver board includes
Antenna input circuit, RF receiving module, demodulation circuit of intermediate frequency, second low put output circuit and rear class power amplifier, the antenna
Input circuit is connect with RF receiving module, and described demodulation circuit of intermediate frequency one end is connect with RF receiving module, and the other end is low with second
Output circuit connection is put, the rear class power amplifier is low with second to be put output circuit and connect.
3. a kind of accessory device of simulation signal generator as claimed in claim 2, which is characterized in that the type of the bluetooth receiver board
Number be BC6140.
4. a kind of accessory device of simulation signal generator as described in claim 1, which is characterized in that the device further includes that loudspeaker are negative
It carries, the loudspeaker load is connect with output transformer.
5. a kind of accessory device of simulation signal generator as claimed in claim 4, which is characterized in that the level-one vacuum tube amplification
Circuit includes vacuum suppressor grid tube, rear class power tube, exports transformer, main transformer, genotron and hv filtering inductance,
Amplify when signal inputs voltage order one from the vacuum suppressor grid tube, is exported after being put into output transformer using rear class power tube is low
It is loaded to loudspeaker, the hv filtering inductance is for dropping ripple, and the main transformer is for powering, and point five groups of outputs are described defeated
Transformer is used for isolation coupling audio output out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920742079.3U CN209642952U (en) | 2019-05-22 | 2019-05-22 | A kind of accessory device of simulation signal generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920742079.3U CN209642952U (en) | 2019-05-22 | 2019-05-22 | A kind of accessory device of simulation signal generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209642952U true CN209642952U (en) | 2019-11-15 |
Family
ID=68498633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920742079.3U Expired - Fee Related CN209642952U (en) | 2019-05-22 | 2019-05-22 | A kind of accessory device of simulation signal generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209642952U (en) |
-
2019
- 2019-05-22 CN CN201920742079.3U patent/CN209642952U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103297894A (en) | Earphone power amplifier, working method and mobile terminal equipment | |
| CN212211014U (en) | FM radio anti-D type power amplifier interference circuit, circuit board and FM radio | |
| CN105472082A (en) | Radiation spurious emission (RSE) auxiliary test circuit | |
| CN107528559A (en) | Noiselike signal modulate circuit | |
| CN203734624U (en) | High-performance microstrip multistage low-noise amplifier | |
| CN202889621U (en) | Interface system for vehicle-mounted electret microphone | |
| CN201682458U (en) | Automatic gain control magnifier and low noise hearing aid system | |
| CN209642952U (en) | A kind of accessory device of simulation signal generator | |
| CN208445738U (en) | A kind of harmonic distortion filtering equipment and terminal | |
| CN205195953U (en) | Noise suppression disturbs audio circuit | |
| CN201917355U (en) | Weak signal detection circuit | |
| CN207218648U (en) | Adaptive amplifying circuit based on reception signal detection | |
| CN104242831A (en) | Wideband amplification device with low noise | |
| CN102538952A (en) | High-sensitivity thunder test circuit | |
| CN201976071U (en) | Front-end amplifier of wireless communication receiver | |
| US7046814B2 (en) | Impedance adapter preamplifier device for electronic tube audio frequencies able to be inserted on line on the path of the low frequency signal | |
| CN213126391U (en) | Novel live microphone | |
| CN207150542U (en) | Audio power amplifier | |
| CN208227005U (en) | A kind of High Linear low noise short-wave all-frequency band monitoring array received front end | |
| CN203618113U (en) | Audio signal clipping control circuit device with power supply correlation | |
| CN201945347U (en) | Flowmeter pretreatment instrument | |
| CN206640735U (en) | A kind of filter circuit of noise cancelling headphone | |
| CN219019009U (en) | Analog audio input amplitude limiting circuit for sound equipment | |
| CN212970073U (en) | High-fidelity low-cost analog hearing aid circuit | |
| CN201398190Y (en) | Envelope detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191115 |