CN100462696C - Audio phase detector - Google Patents
Audio phase detector Download PDFInfo
- Publication number
- CN100462696C CN100462696C CNB2006100359448A CN200610035944A CN100462696C CN 100462696 C CN100462696 C CN 100462696C CN B2006100359448 A CNB2006100359448 A CN B2006100359448A CN 200610035944 A CN200610035944 A CN 200610035944A CN 100462696 C CN100462696 C CN 100462696C
- Authority
- CN
- China
- Prior art keywords
- pin
- connects
- foot
- phase
- ground
- 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
Images
Landscapes
- Amplifiers (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The disclosed audio phase detector comprises a single-tone signal generator and a phase detection device, wherein the 3 and 6 feet of the generator connect with C7, R20 and D4; the 5th foot connects with R17-R19; the 1st foot connects with R12 and C3 and the base of Q1 for amplification; the VR1 regulates the output for detection signal from J1; the MIC1 of phase detection device connects with C9, the 5th foot of IC1 connects with R3, C2 and R4; the 7th foot connects with R6, 6th and 3rd feet of IC2; the 5th foot of IC2 connects with R7 and R9, the 1st foot connects with D1, 9th foot of IC2; the 11th foot of IC3 connects with D3, R21, R15 and the 1st foot; the collector of Q2 connects with R22, the base connects with R21; and the emitter grounds.
Description
Technical field:
The present invention relates to a kind of audio phase detector that in the audio frequency engineering, is used for detecting voice band line.
Background technology:
In the audio frequency engineering construction, usually because two (or a plurality of) loudspeaker wiring errors, "+-" polarity connects instead, and make the sound wave phase place of loudspeaker output also opposite, cause the sound stack, interfere that its result repeals by implication the output sound wave, thereby make sound reduction, perhaps the sound ambiguous in different sound listening point, even can form " dead band ", destroy sound field effect, can't reach the quality index requirement of audio engineering.The personnel selection ear goes to distinguish the phase place of sound, corrects wiring error, is impossible.In the big sound equipment wiring installation of complicated Pang, the mistake of going to clear up wiring corrects wiring error, also is very difficult.
Summary of the invention:
The object of the invention is to overcome the deficiencies in the prior art, and a kind of audio phase detector with high accuracy and sensitivity is provided.
For achieving the above object, technical scheme provided by the invention is: this detecting device partly is made up of tone signal generator part and phase-detection, tone signal generator part is connected with C7, R20, D4 by the 3rd, 6 pin of IC4, the 5th pin is connected with R17, R18, R19, and the 4th pin and C7 are connected to ground, and the 7th pin is connected with R20, the 2nd pin is connected with R11, R12, R13, the 1st pin with R12, C3, be connected, regulate the output size through VR1, from J1 output single-tone detection signal; The 1st pin is connected with the base stage of Q1, uses in the self check of loudspeaker output tone signal after Q1 amplifies; The 8th pin is connected with power supply is anodal with the C utmost point of Q1;
The MIC1 that phase-detection partly receives the single-tone detection signal is connected with C9, C9 is connected with J2, J2 is connected with VR2, VR2 is connected with C2, and the 5th pin of IC1 is connected with R3, C2, R4, and the 6th pin is connected with R1, R6, the 7th pin is connected with the 6th pin, the 3rd pin of R6, IC2, the 3rd pin and the 4th pin are connected to ground, and the 1st pin is connected with the 2nd pin, and the 8th pin is connected with+Vcc; The 5th pin of IC2 is connected with R7, R9, and the 7th pin is connected with D2, and the 8th pin is connected with+Vcc, and the 1st pin is connected with the 9th pin of D1, IC3, and the 2nd pin is connected with R9, R8, and the 4th pin is connected to ground; The 8th pin of IC3 is connected with the 10th pin, and the 11st pin is connected with D3, R21, R15, the 1st pin, and the 12nd pin is connected with LED3, the 13rd pin is connected with LED4, the 7th pin and the 5th pin, the 3rd pin are connected to ground, and the 6th pin is connected with D1, D2, R14, and the 4th pin is connected with D3, R15, C6; The 14th pin is connected with+Vcc, and the collector of Q2 is connected with R22, and base stage is connected with R21, grounded emitter.
Tone signal generator part of the present invention produces single frequency signal by IC4, by J1 output, gives external power amplifier as detection signal, and external power amplifier connects loudspeaker to be measured after amplifying tone signal, makes loudspeaker emit the single-tone detection signal; The single-tone detection signal of loudspeaker output after the MIC1 microphone reception by the phase-detection part, after IC1, IC2 amplify, handle, is given the IC3 chip and is carried out phase-detection, comparison, exports positive phase signals at 12 pin of IC3, and driving LED 3 shows homophase; At the 13 pin output inversion signal of IC3, driving LED 4 shows anti-phase.
The present invention partly receives the defeated amplifier of audio frequency merit to the tone signal generator when using, and makes loudspeaker generation single-tone.Phase detectors parts is in the front of loudspeaker, receive sound after, handle, detect, show the result of phase-detection with LED light.At this moment, if testing result is anti-phase, as long as the loudspeaker wiring then can conversely.
In sum, use the present invention to correct loudspeaker wiring error, engineering detecting is simple, highly sensitive, the result accurately and reliably, easy to use.
Description of drawings:
Fig. 1 is an electrical block diagram of the present invention.
Embodiment:
See shown in Figure 1, present embodiment tone signal generator part is connected with C7, R20, D4 by the 3rd, 6 pin of IC4 (BA4560), the 5th pin is connected with R17, R18, R19, the 4th pin and C7 are connected to ground, the 7th pin is connected with R20, and the 2nd pin is connected with R11, R12, R13, the 1st pin with R12, C3, be connected, regulate the output size through VR1, from J1 output single-tone detection signal.The 1st pin is connected with the base stage of Q1, uses in the self check of loudspeaker output tone signal after Q1 amplifies.The 8th pin is connected with power supply is anodal with the C utmost point of Q1.
The MIC that phase-detection partly receives the single-tone detection signal is connected with C9, C9 is connected with J2, J2 is connected with VR2, VR2 is connected with C2, the 5th pin of IC1 (LM358) is connected with R3, C2, R4, and the 6th pin is connected with R1, R6, and the 7th pin is connected with the 6th pin, the 3rd pin of R6, IC2, the 1st pin is connected with the 2nd pin, and the 3rd pin and the 4th pin are connected to ground.The 5th pin of IC2 (LM358) is connected with R7, R9, and the 7th pin is connected with D2, and the 8th pin is connected with+Vcc, and the 1st pin is connected with the 9th pin of D1, IC3, and the 2nd pin is connected with R9, R8, and the 4th pin is connected to ground.The 8th pin of IC3 (50193) is connected with the 10th pin, and the 11st pin is connected with D3, R21, R15, the 1st pin, and the 12nd pin is connected with LED3, the 13rd pin is connected with LED4, the 7th pin and the 5th pin, the 3rd pin are connected to ground, and the 6th pin is connected with D1, D2, R14, and the 4th pin is connected with D3, R15, C6.The 14th pin is connected with+Vcc, and the collector of Q2 is connected with R22, and base stage is connected with R21, grounded emitter.
The present invention is as element circuit, also can be used in the corresponding instrument that needs phase-detection, phase-samplomh, the equipment.
Claims (1)
1. an audio phase detector partly is made up of tone signal generator part and phase-detection, it is characterized in that:
Tone signal generator part: the 3rd, 6 pin that by model are the IC4 of BA4560 are connected with C7, R20, D4, the 5th pin is connected with R17, R18, R19, the 4th pin and C7 are connected to ground, the 7th pin is connected with R20, the 2nd pin is connected with R11, R12, R13, the 1st pin is connected with R12, C3, regulates the output size through VR1, from J1 output single-tone detection signal; The 1st pin is connected with the base stage of Q1, uses in the self check of loudspeaker output tone signal after Q1 amplifies; The 8th pin is connected with power supply is anodal with the C utmost point of Q1;
The phase-detection part: the MIC1 that receives the single-tone detection signal is connected with C9, C9 is connected with J2, J2 is connected with VR2, VR2 is connected with C2, and model is that the 5th pin of the IC1 of LM358 is connected with R3, C2, R4, and the 6th pin is connected with R1, R6, the 7th pin and R6, model are that the 6th pin, the 3rd pin of the IC2 of LM358 is connected, the 3rd pin and the 4th pin are connected to ground, and the 1st pin is connected with the 2nd pin, and the 8th pin is connected with+Vcc; Model is that the 5th pin of the IC2 of LM358 is connected with R7, R9, and the 7th pin is connected with D2, and the 8th pin is connected with+vcc, and the 1st pin and D1, model are that the 9th pin of 50193 IC3 is connected, and the 2nd pin is connected with R9, R8, and the 4th pin is connected to ground; Model is that the 8th pin of 50193 IC3 is connected with the 10th pin, and the 11st pin is connected with D3, R21, R15, the 1st pin, and the 12nd pin is connected with LED3, the 13rd pin is connected with LED4, the 7th pin and the 5th pin, the 3rd pin are connected to ground, and the 6th pin is connected with D1, D2, R14, and the 4th pin is connected with D3, R15, C6; The 14th pin is connected with+Vcc, and the collector of Q2 is connected with R22, and base stage is connected with R21, grounded emitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100359448A CN100462696C (en) | 2006-06-14 | 2006-06-14 | Audio phase detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100359448A CN100462696C (en) | 2006-06-14 | 2006-06-14 | Audio phase detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1908600A CN1908600A (en) | 2007-02-07 |
| CN100462696C true CN100462696C (en) | 2009-02-18 |
Family
ID=37699773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100359448A Expired - Fee Related CN100462696C (en) | 2006-06-14 | 2006-06-14 | Audio phase detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100462696C (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034433A (en) * | 1987-11-30 | 1989-08-02 | 肯特-穆尔公司 | Ultrasonic hand-held refrigerant leak detector |
| CN2248118Y (en) * | 1995-11-28 | 1997-02-26 | 宣浩 | Phase-locked frequency tracking ultrasonic polishing machine |
| WO2005109951A1 (en) * | 2004-05-05 | 2005-11-17 | Deka Products Limited Partnership | Angular discrimination of acoustical or radio signals |
| CN2929674Y (en) * | 2006-06-14 | 2007-08-01 | 李志� | Audio frequency phase detector |
-
2006
- 2006-06-14 CN CNB2006100359448A patent/CN100462696C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034433A (en) * | 1987-11-30 | 1989-08-02 | 肯特-穆尔公司 | Ultrasonic hand-held refrigerant leak detector |
| CN2248118Y (en) * | 1995-11-28 | 1997-02-26 | 宣浩 | Phase-locked frequency tracking ultrasonic polishing machine |
| WO2005109951A1 (en) * | 2004-05-05 | 2005-11-17 | Deka Products Limited Partnership | Angular discrimination of acoustical or radio signals |
| CN2929674Y (en) * | 2006-06-14 | 2007-08-01 | 李志� | Audio frequency phase detector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1908600A (en) | 2007-02-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2006065473A3 (en) | Speaker diagnostics based upon driving-point impedance | |
| CA2549451A1 (en) | Reversible diode doorbell detection circuit | |
| CN207489210U (en) | A kind of photoelectric smoke detecting alarm | |
| CN2929674Y (en) | Audio frequency phase detector | |
| CN100462696C (en) | Audio phase detector | |
| CN107438222A (en) | It is a kind of to break and short-circuit detecting circuit and method towards earphone/headset loudspeaker | |
| CN101980547A (en) | Earphone | |
| CN205793346U (en) | A kind of towards earphone/headset loudspeaker broken string and short-circuit detecting circuit | |
| CN201828630U (en) | Intelligent multi-sensor cable fault localization instrument | |
| CN202798855U (en) | Microphone circuit module with reverberation and monitoring functions | |
| CN205880042U (en) | Hum bar electric induction circuit | |
| MY174292A (en) | Transfer device, electronic signature tool, detection device and interface detection system | |
| CN103424625B (en) | Test signal supply equipment and SIC (semiconductor integrated circuit) | |
| CN201303410Y (en) | Novel earphone | |
| CN209231531U (en) | A kind of wireless type pulse metal detector | |
| CN202141772U (en) | Seismic prospecting cable broken line point detector | |
| CN207489211U (en) | A kind of compound detecting alarm of carbon monoxide photoelectric smoke | |
| CN203705665U (en) | Voice/vibration signal identification system | |
| CN201374680Y (en) | Audio power amplifier | |
| CN101713766B (en) | Wide frequency response noise resistant adapterization probe adopting double piezoelectric ceramic wafers | |
| CN203104716U (en) | FM wireless microphone having directly monitoring function over sound effects | |
| CN105910772A (en) | Ultrasonic leakage detection device and ultrasonic leakage detection method | |
| CN206118024U (en) | Stereo set power amplifier power detection appearance | |
| CN206024114U (en) | A kind of audio test system | |
| CN103888884B (en) | Loudspeaker detecting method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090218 Termination date: 20110614 |