CN109587608A - Sound system and high-power coil circuit - Google Patents
Sound system and high-power coil circuit Download PDFInfo
- Publication number
- CN109587608A CN109587608A CN201710900008.7A CN201710900008A CN109587608A CN 109587608 A CN109587608 A CN 109587608A CN 201710900008 A CN201710900008 A CN 201710900008A CN 109587608 A CN109587608 A CN 109587608A
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- China
- Prior art keywords
- coil
- controlled
- tube
- power
- capacitor
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/046—Construction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The present invention proposes a kind of sound system and high-power coil circuit, wherein high-power coil circuit includes: coil；Power end, power end are connected with one end of coil, and power end is used to provide working power to coil；Signal receiving end is controlled, control signal receiving end is for receiving control signal；Controlled tr tube, the first end of controlled tr tube is connected with the other end of coil, and the control terminal of the second end ground connection of controlled tr tube, controlled tr tube is connected with control signal receiving end, controlled tr tube is switched on or off under control of the control signal, to correspond to opening or closing for control coil；Interference signal absorptive unit, the pulse interference signal that interference signal absorptive unit generates when opening or closing for absorbing coil, to prevent interference of the pulse interference signal to control signal.The misrecognition that thereby, it is possible to avoid controlling signal as caused by pulse interference signal, and help to reduce the damage of element in the control circuit for generating control signal.
Description
Technical field
The present invention relates to technical field of electric appliances more particularly to a kind of high-power coil circuits and a kind of sound system.
Background technique
At work due to high-power coil class, it can be produced because reaction gesture acts on when being started to it and closing control
Raw pulse interference signal, interference signal meeting via line are transmitted to the control circuit for generating control signal, lead to control circuit work
Make abnormal and element in control circuit is damaged.
To solve the above problems, in the related technology, increasing transient voltage straining element, in coil circuit to inhibit part
Pulse interference signal reduces some voltages and reduces the partial pulse time.But the technology can not be inherently eliminated these pulses
Interference signal, i.e., the pulse interference signal not being eliminated can still interfere control signal, in some instances it may even be possible to it is tight to will lead to generation
Weight accident, and element that can slowly in Damage Coutrol circuit, influence service life and the performance of control circuit.
Summary of the invention
The present invention is directed to solve one of the technical problem in above-mentioned technology at least to a certain extent.For this purpose, of the invention
First purpose is to propose that a kind of high-power coil circuit, the circuit can be avoided the control letter as caused by pulse interference signal
Number misrecognition, and facilitate reduce generate control signal control circuit in element damage.
Second object of the present invention is to propose a kind of sound system.
In order to achieve the above object, first aspect present invention embodiment proposes a kind of high-power coil circuit, which includes:
Coil.Power end, the power end are connected with one end of the coil, and the power end is used to provide work electricity to the coil
Source.Signal receiving end is controlled, the control signal receiving end is for receiving control signal.Controlled tr tube, the controllable switch
The first end of pipe is connected with the other end of the coil, the second end ground connection of the controlled tr tube, the controlled tr tube
Control terminal is connected with the control signal receiving end, and the controlled tr tube is opened or closed under the control of said control signal
It is disconnected, opening or closing for the coil is controlled with corresponding.Interference signal absorptive unit, the interference signal absorptive unit is for inhaling
The pulse interference signal generated when the coil opens or closes is received, to prevent the pulse interference signal to the control signal
Interference.
High-power coil circuit according to an embodiment of the present invention receives control signal by control signal end, and according to control
Signal control controlled tr tube processed is switched on or off, and to correspond to opening or closing for control coil, and is inhaled by interference signal
It receives unit and absorbs the pulse interference signal generated when the coil opens or closes, to prevent the pulse interference signal to described
Control the interference of signal, wherein provide working power to coil by power end.It avoids being caused by pulse interference signal as a result,
Control signal misrecognition, and facilitate reduce generate control signal control circuit in element damage.
In addition, high-power coil circuit according to the above embodiment of the present invention can also have following additional technology special
Sign:
According to one embodiment of present invention, the interference signal absorptive unit includes: first capacitor, the first capacitor
With the coils from parallel connection of coils；First diode, the anode of the first diode are connected with the other end of the coil, and described first
The cathode of diode is connected with one end of the coil；Second capacitor, one end of second capacitor is respectively with the described 1st
The cathode of pole pipe is connected with one end of the coil, the other end ground connection of second capacitor.
According to one embodiment of present invention, the first capacitor is X capacitor, and second capacitor is electrolytic capacitor.
According to one embodiment of present invention, the first diode is Schottky diode.
According to one embodiment of present invention, the controlled tr tube includes metal-oxide-semiconductor, IGBT.
According to one embodiment of present invention, when the controlled tr tube includes metal-oxide-semiconductor, the drain electrode conduct of the metal-oxide-semiconductor
The first end of the controlled tr tube, control terminal of the grid of the metal-oxide-semiconductor as the controlled tr tube, the metal-oxide-semiconductor
Second end of the source electrode as the controlled tr tube is connected with parasitic diode between the source electrode and drain electrode of the metal-oxide-semiconductor.
According to one embodiment of present invention, the control signal is pwm signal.
Further, second aspect of the present invention embodiment proposes a kind of sound system comprising above-mentioned high-power line
Enclose circuit.
Sound system of the invention, using above-mentioned high-power coil circuit, can be avoided is caused by pulse interference signal
Control signal misrecognition, and facilitate reduce generate control signal control circuit in element damage.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, in which:
Fig. 1 is the schematic diagram of interference signal absorptive unit according to an embodiment of the present invention；
Fig. 2 is the schematic diagram of high-power coil circuit according to an embodiment of the present invention；
Fig. 3 (a) is the waveform diagram for the control signal eliminated accord to a specific embodiment of that present invention without interference；
Fig. 3 (b) is the waveform diagram for being interfered the control signal of elimination accord to a specific embodiment of that present invention；
Fig. 4 is the block diagram of sound system according to an embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings the sound system and high-power coil circuit of the embodiment of the present invention are described.
Fig. 1 is the schematic diagram of the high-power coil circuit of the embodiment of the present invention.As shown in Figure 1, the high-power coil circuit
100 include: coil L1, power end a, control signal receiving end b, controlled tr tube Q1 and interference signal absorptive unit 10.
Wherein, it is connected referring to Fig. 1, power end a with one end of coil L1, power end a is used to provide work to the coil
Power supply.Signal receiving end b is controlled for receiving control signal.The other end phase of the first end of controlled tr tube Q1 and coil L1
Even, the control terminal of the second end ground connection of controlled tr tube Q1, controlled tr tube Q1 is connected with control signal receiving end b, controllably opens
It closes pipe Q1 to be switched on or off under control of the control signal, to correspond to opening or closing for control coil L1.Interference signal absorbs
The pulse interference signal that unit 10 generates when opening or closing for absorbing coil L1, to prevent pulse interference signal from believing control
Number interference.
Optionally, controlled tr tube Q1 may include metal-oxide-semiconductor, IGBT.
In some embodiments of the invention, referring to fig. 2, when controlled tr tube Q1 includes metal-oxide-semiconductor, the drain electrode of metal-oxide-semiconductor is made
For the first end of controlled tr tube Q1, control terminal of the grid of metal-oxide-semiconductor as controlled tr tube Q1, the source electrode of metal-oxide-semiconductor is used as can
The second end for controlling switching tube Q1, is connected with parasitic diode between the source electrode and drain electrode of metal-oxide-semiconductor.
Further, as shown in Figure 1, interference signal absorptive unit 10 includes: first capacitor C1, first diode D1 and
Two capacitor C2.Wherein, first capacitor C1 is in parallel with coil L1.The anode of first diode D1 is connected with the other end of coil L1,
The cathode of first diode D1 is connected with one end of coil L1.One end of second capacitor C2 cathode with first diode D1 respectively
It is connected with one end of coil L1, the other end ground connection of the second capacitor C2.
Optionally, first capacitor C1 can be X capacitor, and the second capacitor C2 can be electrolytic capacitor, and first diode D1 can be Xiao
Special based diode.
Wherein, X capacitor is that powered electromagnetic is inhibited to interfere electricity container, has the effects that filtering, eliminates electric spark；Electricity
Solution capacitor in this embodiment can be filtered working power voltage.
In an embodiment of the present invention, control signal can be pwm signal.
For example, referring to fig. 2, defeated to control signal receiving end by control circuit to power end input service power supply
Enter pwm signal, which can be square-wave signal.When high-power coil circuit does not access interference signal receiving unit 10,
Due to the presence of counter electromotive force, high impulse interference signal can be generated, at this point, shown in collected square-wave signal such as Fig. 3 (a)；When
When accessing interference signal receiving unit 10, it is dry which can effectively absorb high impulse shown in Fig. 3 (a)
Signal is disturbed, at this point, shown in collected pwm signal such as Fig. 3 (b).Comparison diagram 3 (a), figure (b) are as can be seen that the embodiment of the present invention
High-power coil circuit can effectively eliminate high impulse interference signal.
To sum up, high-power coil circuit according to an embodiment of the present invention receives control signal, and root by control signal end
According to being switched on or off for control signal control controlled tr tube, to correspond to opening or closing for control coil, and pass through interference letter
Number absorptive unit absorbs the pulse interference signal generated when the coil opens or closes, to prevent the pulse interference signal pair
The interference of the control signal, wherein provide working power to coil by power end.It is avoided as a result, by pulse interference signal
The misrecognition of caused control signal, and help to reduce the damage of element in the control circuit for generating control signal.
Fig. 2 is the block diagram of sound system according to an embodiment of the present invention.As shown in Fig. 2, the sound system 1000 includes
The high-power coil circuit 100 of the above embodiment of the present invention.
The sound system of the embodiment of the present invention avoids being caused by pulse interference signal using above-mentioned high-power coil circuit
Control signal misrecognition, and facilitate reduce generate control signal control circuit in element damage.
In addition, sound system according to an embodiment of the present invention other constitute and its act on to those skilled in the art and
Speech be it is known, for reduce redundancy, be not repeated herein.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing custom logic function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Claims (8)
1. a kind of high-power coil circuit characterized by comprising
Coil；
Power end, the power end are connected with one end of the coil, and the power end is used to provide work electricity to the coil
Source；
Signal receiving end is controlled, the control signal receiving end is for receiving control signal；
Controlled tr tube, the first end of the controlled tr tube are connected with the other end of the coil, the controlled tr tube
Second end ground connection, the control terminal of the controlled tr tube are connected with the control signal receiving end, and the controlled tr tube is in institute
It states and is switched on or off under the control of control signal, control opening or closing for the coil with corresponding；
Interference signal absorptive unit, the interference signal absorptive unit is for absorbing the arteries and veins generated when the coil opens or closes
Interference signal is rushed, to prevent interference of the pulse interference signal to the control signal.
2. high-power coil circuit as described in claim 1, which is characterized in that the interference signal absorptive unit includes:
First capacitor, the first capacitor and the coils from parallel connection of coils；
First diode, the anode of the first diode are connected with the other end of the coil, the yin of the first diode
Pole is connected with one end of the coil；
Second capacitor, one end of second capacitor one end phase with the cathode of the first diode and the coil respectively
Even, the other end ground connection of second capacitor.
3. high-power coil circuit as claimed in claim 2, which is characterized in that the first capacitor is X capacitor, described second
Capacitor is electrolytic capacitor.
4. high-power coil circuit as claimed in claim 2 or claim 3, which is characterized in that the first diode is Schottky two
Pole pipe.
5. high-power coil circuit as described in claim 1, which is characterized in that the controlled tr tube include metal-oxide-semiconductor,
IGBT。
6. high-power coil circuit as claimed in claim 5, which is characterized in that when the controlled tr tube includes metal-oxide-semiconductor, institute
State first end of the drain electrode of metal-oxide-semiconductor as the controlled tr tube, control of the grid of the metal-oxide-semiconductor as the controlled tr tube
End processed, second end of the source electrode of the metal-oxide-semiconductor as the controlled tr tube, connects between the source electrode and drain electrode of the metal-oxide-semiconductor
There is parasitic diode.
7. such as high-power coil circuit of any of claims 1-6, which is characterized in that the control signal is PWM
Signal.
8. a kind of sound system, which is characterized in that including high-power coil circuit such as of any of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710900008.7A CN109587608A (en) | 2017-09-28 | 2017-09-28 | Sound system and high-power coil circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710900008.7A CN109587608A (en) | 2017-09-28 | 2017-09-28 | Sound system and high-power coil circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109587608A true CN109587608A (en) | 2019-04-05 |
Family
ID=65914643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710900008.7A Pending CN109587608A (en) | 2017-09-28 | 2017-09-28 | Sound system and high-power coil circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109587608A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006269299A (en) * | 2005-03-24 | 2006-10-05 | Lecip Corp | Discharge lamp lighting circuit |
| CN201490688U (en) * | 2009-07-31 | 2010-05-26 | 珠海格力电器股份有限公司 | Phase sequence converter |
| CN203872211U (en) * | 2013-10-18 | 2014-10-08 | 张家斌 | Anti-theft device for mobile phone |
| CN104752099A (en) * | 2015-03-06 | 2015-07-01 | 深圳怡化电脑股份有限公司 | Drive module of relay |
-
2017
- 2017-09-28 CN CN201710900008.7A patent/CN109587608A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006269299A (en) * | 2005-03-24 | 2006-10-05 | Lecip Corp | Discharge lamp lighting circuit |
| CN201490688U (en) * | 2009-07-31 | 2010-05-26 | 珠海格力电器股份有限公司 | Phase sequence converter |
| CN203872211U (en) * | 2013-10-18 | 2014-10-08 | 张家斌 | Anti-theft device for mobile phone |
| CN104752099A (en) * | 2015-03-06 | 2015-07-01 | 深圳怡化电脑股份有限公司 | Drive module of relay |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190405 |
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| RJ01 | Rejection of invention patent application after publication |