CN210431875U - Detection device for converting audio signal into voltage signal - Google Patents
Detection device for converting audio signal into voltage signal Download PDFInfo
- Publication number
- CN210431875U CN210431875U CN201921891351.0U CN201921891351U CN210431875U CN 210431875 U CN210431875 U CN 210431875U CN 201921891351 U CN201921891351 U CN 201921891351U CN 210431875 U CN210431875 U CN 210431875U
- Authority
- CN
- China
- Prior art keywords
- triode
- base
- resistance
- connects
- electrode
- 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
- 230000005236 sound signal Effects 0.000 title claims abstract description 11
- 238000001514 detection method Methods 0.000 title claims description 6
- 239000003990 capacitor Substances 0.000 claims description 12
- 238000001914 filtration Methods 0.000 abstract description 4
- 230000003321 amplification Effects 0.000 abstract description 3
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000030808 detection of mechanical stimulus involved in sensory perception of sound Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Amplifiers (AREA)
Abstract
The utility model provides a check out test set for being converted audio signal into voltage signal, the MIC microphone adopts 5V mains operated, triode Q1's base inserts the signal of MIC microphone, and triode Q1's base passes through resistance R3, resistance R2 connects 5V power anodal after, triode Q1's projecting pole ground connection, triode Q1's collecting electrode connects triode Q2's base, triode Q2's base still connects 5V power anodal through resistance R4 after, triode Q2's projecting pole ground connection, triode Q2's collecting electrode connects triode Q3's base through resistance R5 after, triode Q3's base still connects 5V power anodal through resistance R6 after, triode Q3's projecting pole connects 5V power anodal, triode Q3's collecting electrode connects the positive pole of LED pilot lamp after resistance R7, the cathode ground connection of LED pilot lamp, when MIC microphone detected voiced sound signal through the filtering, through filtering, The triode is amplified and then converted into a voltage signal, when the LED indicating lamp is on, the voltage signal represents the voltage, the structure is simple, multiple amplification is adopted, and the sensitivity is high.
Description
Technical Field
The present invention relates to an audio processing apparatus, and more particularly, to a detection apparatus for converting an audio signal into a voltage signal.
Background
With the continuous development of the technology level, the audio processing chip is widely applied to digital media equipment, and has wide market requirements and application prospects, and the integrated circuit design comprises the aspects of circuits, layouts, process schemes, assembly mechanisms and the like.
SUMMERY OF THE UTILITY MODEL
The utility model provides a check out test set for converting audio signal to voltage signal realizes the detection of sound signal and to voltage signal's conversion, adopts following technical scheme: the MIC microphone is powered by a 5V power supply, the base electrode of the triode Q1 is connected with a signal of the MIC microphone, the base electrode of the triode Q1 is connected with the positive electrode of the 5V power supply through a resistor R3 and a resistor R2, the emitting electrode of the triode Q1 is grounded, the collecting electrode of the triode Q1 is connected with the base electrode of the triode Q2, the base electrode of the triode Q2 is also connected with the positive electrode of the 5V power supply through a resistor R4, the emitting electrode of the triode Q638 is grounded, the collecting electrode of the triode Q2 is connected with the base electrode of the triode Q3 through a resistor R5, the base electrode of the triode Q3 is also connected with the positive electrode of the 5V power supply through a resistor R6, the emitting electrode of the triode Q42 is connected with the positive electrode of the 5V power supply, the collecting electrode of the triode Q3 is connected with the positive electrode of the LED indicator lamp through a resistor R7, and the.
Preferably, a filter capacitor C1 is further provided, and the filter capacitor C1 is connected between the base of the triode Q1 and the MIC microphone.
Preferably, a filter capacitor C2 is further provided, and both ends of the filter capacitor C2 are respectively connected with the resistor R3 and the collector of the transistor Q2.
The utility model has the advantages that: the utility model discloses utilize the 5v power to supply power for the MIC microphone, when the MIC microphone detects there is the sound signal, convert voltage signal after filtering, triode amplification, represent when the LED pilot lamp is bright has voltage, simple structure, convenient operation and with low costs, adopt and enlarge many times, sensitivity is high.
Drawings
Fig. 1 is a circuit diagram of the present invention.
Detailed Description
It can be known from fig. 1 that the utility model discloses a MIC microphone, triode Q1, triode Q2, triode Q3 and LED pilot lamp, the MIC microphone adopts 5V power supply, the signal of MIC microphone is connected to triode Q1's base, and triode Q1's base passes through resistance R3, resistance R2 connects 5V power positive pole after, triode Q1's projecting pole ground connection, triode Q1's collecting electrode connects triode Q2's base, triode Q2's base still connects 5V power positive pole after resistance R4, triode Q2's projecting pole ground connection, triode Q2's collecting electrode connects triode Q3's base after resistance R5, triode Q3's base still connects 5V power positive pole after resistance R6, triode Q3's projecting pole connects 5V power positive pole, triode Q3's collecting electrode connects the LED pilot lamp's negative pole ground connection after resistance R7, the LED pilot lamp's negative pole ground connection.
Preferably, a filter capacitor C1 is further provided, and the filter capacitor C1 is connected between the base of the triode Q1 and the MIC microphone.
Preferably, a filter capacitor C2 is further provided, and both ends of the filter capacitor C2 are respectively connected with the resistor R3 and the collector of the transistor Q2.
The utility model discloses utilize the 5v power to supply power for the MIC microphone, when the MIC microphone detects there is the sound signal, convert voltage signal after filtering, triode amplification, represent when the LED pilot lamp is bright has voltage, simple structure, convenient operation and with low costs, adopt and enlarge many times, sensitivity is high.
Finally, it should be noted that: the above embodiments are merely illustrative and not restrictive of the invention
Technical solution although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention, and the appended claims are intended to cover such modifications and equivalents as fall within the spirit and scope of the invention.
Claims (3)
1. The detection equipment for converting the audio signal into the voltage signal comprises an MIC microphone, a triode Q1, a triode Q2, a triode Q3 and an LED indicator lamp, and is characterized in that the MIC microphone is powered by a 5V power supply, the base electrode of the triode Q1 is connected with the signal of the MIC microphone, the base electrode of the triode Q1 is connected with the positive electrode of the 5V power supply through a resistor R3 and a resistor R2, the emitter electrode of the triode Q1 is grounded, the collector electrode of the triode Q1 is connected with the base electrode of the triode Q2, the base electrode of the triode Q2 is also connected with the positive electrode of the 5V power supply through a resistor R4, the emitter electrode of the triode Q2 is grounded, the collector electrode of the triode Q2 is connected with the base electrode of the triode Q3 through a resistor R5, the base electrode of the triode Q3 is also connected with the positive electrode of the 5V power supply through a resistor R6, the emitter electrode of the triode Q3 is connected with, the cathode of the LED indicator lamp is grounded.
2. The detection apparatus for converting an audio signal into a voltage signal according to claim 1, characterized in that: a filter capacitor C1 is further arranged, and the filter capacitor C1 is connected between the base electrode of the triode Q1 and the MIC microphone.
3. The detection apparatus for converting an audio signal into a voltage signal according to claim 1, characterized in that: and a filter capacitor C2 is further arranged, and two ends of the filter capacitor C2 are respectively connected with the resistor R3 and the collector of the triode Q2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921891351.0U CN210431875U (en) | 2019-11-05 | 2019-11-05 | Detection device for converting audio signal into voltage signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921891351.0U CN210431875U (en) | 2019-11-05 | 2019-11-05 | Detection device for converting audio signal into voltage signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210431875U true CN210431875U (en) | 2020-04-28 |
Family
ID=70369330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921891351.0U Expired - Fee Related CN210431875U (en) | 2019-11-05 | 2019-11-05 | Detection device for converting audio signal into voltage signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210431875U (en) |
-
2019
- 2019-11-05 CN CN201921891351.0U patent/CN210431875U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108183690A (en) | A kind of audio voltage follows circuit | |
| CN108072809A (en) | A kind of electrical load detection of electrical leakage warning circuit | |
| CN210431875U (en) | Detection device for converting audio signal into voltage signal | |
| CN104408411A (en) | Novel image processing system | |
| CN201903573U (en) | Current detection and amplification circuit used for two-wire manufactured instrument | |
| CN209247871U (en) | A kind of power on and off detection circuit of automobile power system | |
| CN207427481U (en) | A kind of microphone test device | |
| CN203299321U (en) | Simple electric leakage alarm device for power equipment | |
| CN101977347A (en) | Measuring method and measuring circuit for temperature rise of voice coil of dynamic speaker | |
| CN206211964U (en) | Audio-switch and voice-controlled electronic equipment | |
| CN204557241U (en) | A kind of digital pressure switch | |
| CN203151434U (en) | Power amplifier protective circuit | |
| CN204720956U (en) | A kind of three-phase uninterrupted power supply with lack detection circuit | |
| CN209488797U (en) | Sound pick-up | |
| CN203761351U (en) | Square wave signal extracting circuit | |
| CN204831730U (en) | Tire leakage detection circuitry | |
| CN203435138U (en) | High-sensitivity pickup sensor circuit | |
| CN204760023U (en) | LED level indicating circuit | |
| CN210219554U (en) | Intelligent street lamp of noise management | |
| CN203165130U (en) | Novel bank safety alarm with infrared monitoring and triode output control | |
| CN207878591U (en) | Closestool automatic voice prompt system | |
| CN220542255U (en) | Sound detection circuit, circuit board and medical breathing machine | |
| CN201083791Y (en) | Detector alarm circuit for real-time detection for battery voltage | |
| CN206056859U (en) | Digital display electronic pressure gauge with illumination and sound broadcasting device | |
| CN109239445A (en) | A kind of power on and off detection circuit of automobile power system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200428 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |