CN201699951U - Output indicator of sound box - Google Patents
Output indicator of sound box Download PDFInfo
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- CN201699951U CN201699951U CN2010202430213U CN201020243021U CN201699951U CN 201699951 U CN201699951 U CN 201699951U CN 2010202430213 U CN2010202430213 U CN 2010202430213U CN 201020243021 U CN201020243021 U CN 201020243021U CN 201699951 U CN201699951 U CN 201699951U
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Abstract
The utility model discloses an output indicator of a sound box, particularly relates to an indicationg circuit output by a multipath sound box system, and belongs to the technical field of the sound box. An input end of the indicator is connected with the tail end of an audio output line, and an output end of the indicator is connected with the input end of the sound box. The indicator comprises a low-frequency divider, a first voltage stabilizer, a low-frequency indicator, a high-frequency divider, a second voltage stabilizer, a current sensor, a third voltage stabilizer and a current indicator. When the whole circuits all work normally, light- emitting diodes (LEDs) of the indicator can emit normally so as to indicate that the whole circuits work normally; when the LEDs emit abnormally, the corresponding circuit problem can be found.
Description
Technical field:
The utility model relates to a kind of output indicator for sound box, is specifically related to a kind of indicating circuit of multichannel sound box system output, belongs to the audio amplifier technical field.
Background technology:
Commonly in the present various stereo set have an audio-frequency information that display or indicator light can show input or output, its can be used for judging input and output normally whether, but its scope that can judge only limits to from connected signal source can not judge the normal condition from signal source to this whole signal path of loudspeaker that plays out sound to itself.Therefore rely on screen on the stereo set or indicator light can not solve the normally situation whether of the whole voice-frequency channel of above said supervision, and not input or output indication on some stereo set, under the occasion of multichannel voice frequency output, because audio amplifier is numerous, whether what only judge the whole path of each outlet line with hearing is very much time and effort consuming normally.
The utility model content
The utility model purpose:
Technical problem to be solved of the present utility model is the defective at background technology, and a kind of output indicator for sound box is provided.
Technical scheme:
The utility model is for realizing that above-mentioned utility model purpose adopts following technical scheme:
For achieving the above object, the utility model provides a kind of output indicator for sound box, the input of described indicating device is connected with the end of audio output line, the output of described indicating device is connected with the input of audio amplifier, comprises low frequency frequency divider, first stable-pressure device, low frequency indicating device, high frequency divider, second stable-pressure device, current sensor, the 3rd stable-pressure device, current indicator; Wherein the input of indicating device is connected with the input of low frequency frequency divider, the input of high frequency divider, the input of current indicator respectively; The output of low frequency frequency divider connects first stable-pressure device, low frequency indicating device successively; The output of high frequency divider connects second stable-pressure device, high frequency indicating device successively; The output of current sensor is connected with the input of the 3rd stable-pressure device, the output of indicating device respectively, and the 3rd stable-pressure device is connected with current indicator.
Further, the circuit structure of above-mentioned output indicator for sound box medium and low frequency frequency divider comprises the 3rd resistance R 3, second capacitor C 2, the 4th resistance R 4, wherein an end of the 3rd resistance R 3 is connected with input 1 end of described indicating device, the other end of the 3rd resistance R 3 is connected with an end of second capacitor C 2, an end of the 4th resistance R 4 respectively, and the other end of second capacitor C 2 is connected with the other end of the 4th resistance R 4.
Further, the circuit structure of above-mentioned output indicator for sound box medium-high frequency frequency divider comprises first capacitor C 1, first resistance R 1, second resistance R 2; Wherein an end of first capacitor C 1 is connected with output 3 ends of described indicating device, and connect successively first resistance R 1, second resistance R, 2 backs of the other end of first capacitor C 1 is connected with input 2 ends of described indicating device.
Further, current sensor comprises current transformer T1, the 5th resistance R 5 in the above-mentioned output indicator for sound box, wherein the end of the same name of the former limit winding of current transformer T1 is connected with output 4 ends of described indicating device, the different name end of the different name end of the former limit winding of current transformer T1, the secondary winding of current transformer T1 is connected with input 2 ends of described indicating device respectively, the end of the same name of the secondary winding of current transformer T1 is connected with an end of the 5th resistance R 5, and the other end of the 5th resistance R 5 is connected with the input of the 3rd stable-pressure device.
Further, the circuit structure of first stable-pressure device, second stable-pressure device, the 3rd stable-pressure device is identical in the above-mentioned output indicator for sound box, and circuit structure is two two-way connections of voltage stabilizing didoe.
Further, the circuit structure of above-mentioned output indicator for sound box medium and low frequency indicating device, high frequency indicating device, current indicator is identical, and circuit structure is two two-way connections of voltage stabilizing light-emitting diode.
Beneficial effect:
Whether the utility model can indicate whole sound system audio frequency normal from the source of sound to the end, or whether which bar outlet line of indication is normal in multichannel output sound system.
Description of drawings:
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is a circuit block diagram of the present utility model.
Specific embodiments:
Be described in further detail below in conjunction with the enforcement of accompanying drawing technical scheme:
As shown in Figure 1, the input of indicating device of the present utility model is connected with the end of audio output line, the output of indicating device is connected with the input of audio amplifier, and this indicating device comprises low frequency frequency divider, first stable-pressure device, low frequency indicating device, high frequency divider, second stable-pressure device, current sensor, the 3rd stable-pressure device, current indicator; Wherein the input of indicating device is connected with the input of low frequency frequency divider, the input of high frequency divider, the input of current indicator respectively; The output of low frequency frequency divider connects first stable-pressure device, low frequency indicating device successively; The output of high frequency divider connects second stable-pressure device, high frequency indicating device successively; The output of current sensor is connected with the input of the 3rd stable-pressure device, the output of indicating device respectively, and the 3rd stable-pressure device is connected with current indicator.
As shown in Figure 2, indicator circuit structure of the present utility model comprises: current transformer T1; Resistance R 1, R2, R3, R4, R5; Low frequency voltage stabilizing didoe D1, D2, D3, D4, D5, D6; LED 1, LED2, LED3, LED4, LED5, LED6; Non-polar condenser C1, C2.Among the figure, 1,2 is input, is connected to the end on audio output line road; 3,4 is the output of this indicating device, is connected to the input interface of high-power audio amplifier.
LED 1, LED2, LED3, LED4, LED5, LED6 are indicator light, and wherein whether LED 1, LED2, LED3, LED4 indicative audio signal normally arrive the audio amplifier input, whether whether LED 5, LED6 indication audio amplifier have normal power output, promptly indicate audio amplifier inside to open circuit.Wherein LED 1, LED3 arrive the high band indication of input again for audio signal, and LED 2, LED4 are the low-frequency range indication that audio signal arrives input.
Enter the input of indicating device when audio signal after, behind the frequency divider frequency division of being made up of resistance R 1, R2, R3, R4, capacitor C 1, C2, high frequency, the low frequency part signal of telecommunication are respectively through driving corresponding lumination of light emitting diode again after the pressurizer voltage stabilizing; Inside at indicating device is being connected in series current sensor, and the voltage signal of its output is luminous through voltage stabilizing didoe voltage stabilizing rear drive LED 5, LED6.Under all normal situation of whole audio system, when sound is imported, the light-emitting diode that the high-frequency signal light-emitting diode of indicating device, low frequency signal light-emitting diode and current sensor are driven will be normally luminous.If the light-emitting diode that the low frequency light-emitting diode and the current sensor of indicating device are driven is not luminous, represent that then the input circuit before of indicating device has the problem of opening circuit; If high-frequency signal light-emitting diode and low frequency signal light-emitting diode are all normally luminous, and the light-emitting diode that current sensor drove is not luminous, then represent the loudspeaker line broken circuit in the audio amplifier.
When the transmission of the output signal process transmission line of audio-frequency power amplifier arrives audio amplifier,, can judge whether its whole circuit is normal because the audio amplifier place is connected to this circuit arrangement.(approximately 1kHz is following gets final product the low-frequency range of audio frequency, do not need accurate frequency division) through resistance R 3, capacitor C 2, resistance R 4 frequency divisions, the high frequency worry is removed, signal is through voltage stabilizing didoe D3, D4 voltage stabilizing then, it is the normal working voltage value that deboost is no more than LED 2, LED4, make LED 2, LED4 luminous, indicating whether has low-band signal.The effect of dividing potential drop when resistance R 3 has voltage stabilizing didoe work concurrently.Using two voltage stabilizing didoes, the two-way connection of bi-directional voltage stabilizing light-emitting diode luminous herein is in order to reduce the waveform influence to audio signal, and the load when making the two-way flow of audible communication electric current is close, the other two parts of this circuit with herein with.
Its front end obtains the signal of high band through capacitor C 1, resistance R 1, capacitor C 2 frequency divisions, delivers to voltage stabilizing didoe D1, D2 voltage stabilizing, and driven for emitting lights diode (LED) 1, LED3 are luminous again, and indicating whether has high frequency band signal.
When speech of microphone place or playing back music, when LED 1, LED2, LED3, LED4 are all luminous, the signal that audio-frequency power amplifier is described normal delivery is normal from microphone, signal source to the entire circuit of audio amplifier to the input of audio amplifier in other words.
Following circuit will be the indication audio amplifier internal circuit whether normally or whether open circuit.
The audio power signal is through series connection current transformer T1 mutual inductance thereon, the input inductance amount of instrument transformer can not be too big, in case influence the frequency bandwidth characteristics of sound, import in addition with the wire circle of exporting than big, so that the magnitude of voltage of enough driven for emitting lights diode can be provided; At the output of instrument transformer certain voltage output will be arranged, the voltage of output is connected to voltage stabilizing didoe D5, D6 through resistance R 5, and whether whether driven for emitting lights diode (LED) 5, the luminous indication audio amplifier of LED6 normally or open circuit again.
Check that whether normal whole power amplifier when unobstructed, can observe the luminous situation of whole light-emitting diodes again in playing back music or at microphone place sounding.
Other light-emitting diode does not work if LED1, LED2 are normal, and the circuit that this audio amplifier is described has and opens circuit, and has only a certain amount of high-frequency energy to be transferred on the circuit and makes the high frequency indicator light bright herein.
And if LED 1, LED2, LED3, LED4 are all normally luminous, have only LED 5 and LED 6 not to have luminous, this has with regard to explanation audio amplifier inside and opens circuit and do not have electric current to enter audio amplifier, promptly do not have electric current on the circuit herein, then current sensor T1 does not have voltage to offer LED 5, LED6 is luminous.
By above scheme, reached the utility model purpose effectively.
Claims (6)
1. output indicator for sound box, it is characterized in that: the input of described indicating device is connected with the end of audio output line, the output of described indicating device is connected with the input of audio amplifier, and described indicating device comprises low frequency frequency divider, first stable-pressure device, low frequency indicating device, high frequency divider, second stable-pressure device, current sensor, the 3rd stable-pressure device, current indicator; Wherein the input of indicating device is connected with the input of low frequency frequency divider, the input of high frequency divider, the input of current indicator respectively; The output of low frequency frequency divider connects first stable-pressure device, low frequency indicating device successively; The output of high frequency divider connects second stable-pressure device, high frequency indicating device successively; The output of current sensor is connected with the input of the 3rd stable-pressure device, the output of indicating device respectively, and the 3rd stable-pressure device is connected with current indicator.
2. output indicator for sound box according to claim 1, it is characterized in that: the circuit structure of described low frequency frequency divider comprises the 3rd resistance R 3, second capacitor C 2, the 4th resistance R 4, wherein an end of the 3rd resistance R 3 is connected with input 1 end of described indicating device, the other end of the 3rd resistance R 3 is connected with an end of second capacitor C 2, an end of the 4th resistance R 4 respectively, and the other end of second capacitor C 2 is connected with the other end of the 4th resistance R 4.
3. output indicator for sound box according to claim 1 is characterized in that: the circuit structure of described high frequency divider comprises first capacitor C 1, first resistance R 1, second resistance R 2; Wherein an end of first capacitor C 1 is connected with output 3 ends of described indicating device, and connect successively first resistance R 1, second resistance R, 2 backs of the other end of first capacitor C 1 is connected with input 2 ends of described indicating device.
4. output indicator for sound box according to claim 1, it is characterized in that: described current sensor comprises current transformer T1, the 5th resistance R 5, wherein the end of the same name of the former limit winding of current transformer T1 is connected with output 4 ends of described indicating device, the different name end of the different name end of the former limit winding of current transformer T1, the secondary winding of current transformer T1 is connected with input 2 ends of described indicating device respectively, the end of the same name of the secondary winding of current transformer T1 is connected with an end of the 5th resistance R 5, and the other end of the 5th resistance R 5 is connected with the input of the 3rd stable-pressure device.
5. output indicator for sound box according to claim 1 is characterized in that: the circuit structure of described first stable-pressure device, second stable-pressure device, the 3rd stable-pressure device is identical, and circuit structure is two two-way connections of voltage stabilizing didoe.
6. output indicator for sound box according to claim 1 is characterized in that: the circuit structure of described low frequency indicating device, high frequency indicating device, current indicator is identical, and circuit structure is two two-way connections of voltage stabilizing light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202430213U CN201699951U (en) | 2010-06-30 | 2010-06-30 | Output indicator of sound box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202430213U CN201699951U (en) | 2010-06-30 | 2010-06-30 | Output indicator of sound box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201699951U true CN201699951U (en) | 2011-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202430213U Expired - Fee Related CN201699951U (en) | 2010-06-30 | 2010-06-30 | Output indicator of sound box |
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| Country | Link |
|---|---|
| CN (1) | CN201699951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107172531A (en) * | 2017-07-15 | 2017-09-15 | 江苏中协智能科技有限公司 | A kind of linear array sound of round-the-clock level pressure |
-
2010
- 2010-06-30 CN CN2010202430213U patent/CN201699951U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107172531A (en) * | 2017-07-15 | 2017-09-15 | 江苏中协智能科技有限公司 | A kind of linear array sound of round-the-clock level pressure |
| CN107172531B (en) * | 2017-07-15 | 2018-11-02 | 江苏中协智能科技有限公司 | A kind of linear array sound of round-the-clock level pressure and its fault judgment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SANG HUI Free format text: FORMER OWNER: WANG RUNHUI Effective date: 20110426 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 214153 NO. 108, QIANRONG ROAD, BINHU DISTRICT, WUXI CITY, JIANGSU PROVINCE TO: 214153 NO. 809, QIANHU ROAD, WUXI CITY, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110426 Address after: 214153 Jiangsu province Wuxi Qian Hu Road No. 809 Patentee after: Sang Hui Address before: 214153 Jiangsu province Binhu District of Wuxi City Qian Rong Lu No. 108 Patentee before: Wang Runhui |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20110630 |