CN203301718U - Frequency divider with switchable frequency division points and frequency division orders - Google Patents
Frequency divider with switchable frequency division points and frequency division orders Download PDFInfo
- Publication number
- CN203301718U CN203301718U CN2013203982027U CN201320398202U CN203301718U CN 203301718 U CN203301718 U CN 203301718U CN 2013203982027 U CN2013203982027 U CN 2013203982027U CN 201320398202 U CN201320398202 U CN 201320398202U CN 203301718 U CN203301718 U CN 203301718U
- Authority
- CN
- China
- Prior art keywords
- frequency
- frequency division
- inductors
- bank
- capacitor
- 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)
Abstract
The utility model discloses a frequency divider with switchable frequency division points and frequency division orders. The frequency divider with the switchable frequency division points and frequency division orders comprises a low pass frequency division module which can block a high frequency band audio signal and enables a low frequency band audio signal to pass and a high pass frequency division module which can block a low frequency band audio signal and enables a high frequency band audio signal to pass, and is characterized in that control assemblies with switchable frequency division points and frequency division orders are arranged in the low pass frequency division module and the high pass frequency division module respectively; the low pass frequency division module comprises multiple order filter circuits, wherein the N-order filter circuit comprises an inductor set LN in series connection with a signal output end and a capacitor set CN in parallel connection with the signal output end; the high pass frequency division module comprises multiple order filter circuits, wherein the m-order filter circuit comprises a capacitor set CM in series connection with the signal output end and an inductor set LM in parallel connection with the signal output end; the control assemblies are switch assemblies for controlling the access states of the capacitors in the capacitor sets and the inductors in the inductor sets.
Description
Technical field
The utility model relates to a kind of filter apparatus, particularly the frequency divider of a kind of changeable part-frequency point and frequency division exponent number.
Background technology
Frequency divider is a kind of filter apparatus that is common in inside loudspeakers.In the production of loud speaker, due to the area of the diaphragm of loudspeaker, the difference of material, single loud speaker can not ideally show all frequency ranges of sound, therefore the simulated audio signal that usually uses frequency divider to input is separated into high pitch frequency range and bass frequency range, or high pitch, middle pitch and bass frequency range, send into respectively single loudspeaker unit, bass horn is reset in unit.The good bad cooperate degree that is mainly reflected in attenuation slope and part-frequency point and loudspeaker unit of the performance of frequency divider; Due to vibrating diaphragm saw lumber, size, the difference of manufacturing process and the difference of the residing operational environment of loud speaker that loudspeaker unit uses, its most applicable sound frequency range is also variant; And the diaphragm of loudspeaker also can change with its character of prolongation of service time, therefore is necessary according to above terms and conditions, the part-frequency point of frequency divider to be regulated.
Known frequency divider has been set fixing part-frequency point and frequency division exponent number mostly in process of production, loud speaker dispatch from the factory rear user can't according to the hobby, vibrating diaphragm the demands such as degree of aging change its part-frequency point or frequency division exponent number, limited the expressive ability of loud speaker to tonequality.
Summary of the invention
Can't change the problem of part-frequency point and frequency division exponent number after dispatching from the factory for existing frequency divider, the utility model provide a kind of can its part-frequency point of easy setting and the frequency divider of frequency division exponent number.
The purpose of this utility model is achieved through the following technical solutions:
Plant the frequency divider of changeable part-frequency point and frequency division exponent number, comprise can stop the high band audio signal and allow low pass frequency division module that the low-frequency range audio signal passes through, can stop the low-frequency range audio signal and allow the high band audio signal by the high pass frequency division module, it is characterized in that: the control assembly that is respectively arranged with changeable part-frequency point and frequency division exponent number in described low pass frequency division module, high pass frequency division module;
Described low pass frequency division module comprises multistage filter circuit, wherein n rank filter circuit comprises the bank of inductors LN that connects with signal output part and the capacitor group CN in parallel with signal output part, described bank of inductors LN comprises inductor Ln1, Ln2, the Ln3...LnXn of series connection successively, and described capacitor group CN comprises capacitor Cn1, Cn2, the Cn3...CnYn of mutual parallel connection;
Described high pass frequency division module comprises multistage filter circuit, wherein m rank filter circuit comprises capacitor group CM and the bank of inductors LM in parallel with signal output part that connects with signal output part, described capacitor group CM comprises capacitor Cm1, Cm2, the Cm3...CmXm of mutual parallel connection, and described bank of inductors LM comprises inductor Lm1, Lm2, the Lm3...LmYm of series connection successively;
Described control assembly is the switch module of the access state of the capacitor of control capacitor group and the inductor in bank of inductors.
In addition, the utility model also comprise can allow special frequency channel between high band and low-frequency range audio signal by and stop the band reduction of fractions to a common denominator frequency module of other frequency band audio signals.
Concrete, described switch module comprises respectively and bank of inductors L
N, capacitor group C
N, bank of inductors L
MWith capacitor group C
MThe single pole multiple throw S of series connection
nL, S
nC, S
mL and S
mC, described single pole multiple throw S
nL and S
mThe selection contact jaw of L connects respectively bank of inductors L
NWith bank of inductors L
MIn node between adjacent two inductors; Single pole multiple throw S
nC and S
mThe selection contact jaw of C connects respectively capacitor group C
NWith capacitor group C
MIn each capacitor.
Preferably, described single pole multiple throw S
nL and S
mC comprises that respectively makes a bank of inductors L when connecting
NWith capacitor group C
MThe selection contact jaw of short circuit, described single pole multiple throw S
nC and S
mL comprises respectively a unsettled selection contact jaw.
Described bank of inductors L
NIn inductor be the single-candidate inductance, capacitor group C
NIn capacitor for increasing progressively electric capacity.
Further preferred, described bank of inductors is for equidistantly to install many tap inductors of some taps additional in an inductance coil, and described tap connects respectively the selection contact jaw of the single pole multiple throw of with these many tap inductors, connecting.
Further preferred, described control assembly also comprises with single pole multiple throw and being connected, and controls it and selects the automatic control module of switching.
Further preferred, the exponent number of described multistage filter circuit is for being 2 rank or 3 rank.
The utlity model has following beneficial effect:
(1) low pass frequency division module of the present utility model and its part-frequency point of high pass frequency division module all can be changed, by the change part-frequency point, make that loud speaker is aging at vibrating diaphragm, vibrating diaphragm is affected by environment and still have tonequality expression effect preferably when character changes, making the loud speaker life-span not be subjected to the aging impact of vibrating diaphragm.
(2) the utility model is provided with automatic control module, make the operation of frequency divider easier, quick, the comfort level when increasing the user and using product.
Description of drawings
Fig. 1 is the low pass frequency division module circuit diagram of the frequency divider of a kind of changeable part-frequency point of the utility model and frequency division exponent number;
Fig. 2 is the high pass frequency division module circuit diagram of the frequency divider of a kind of changeable part-frequency point of the utility model and frequency division exponent number;
Fig. 3 is a kind of schematic diagram that the low pass frequency division module of the frequency divider of a kind of changeable part-frequency point of the utility model and frequency division exponent number is implemented;
Fig. 4 is a kind of schematic diagram that the high pass frequency division module of the frequency divider of a kind of changeable part-frequency point of the utility model and frequency division exponent number is implemented.
Embodiment
For the ease of those skilled in the art's understanding, the utility model is described in further detail below in conjunction with the drawings and specific embodiments:
The changeable part-frequency point that the utility model discloses and the frequency divider of frequency division exponent number, as illustrated in fig. 1 and 2, comprise respectively low pass frequency division module and high pass frequency division module, regulates the part-frequency point of low pass frequency division module, high pass frequency division module by control group.
Described low pass frequency division module and high pass frequency division module can filter out respectively low-frequency range audio signal and the high band audio signal by signal source output, and the low-frequency range audio signal that will filter out and high band audio signal and Mid Frequency audio signal transfer to respectively bass horn unit and loudspeaker unit.Described control assembly can change part-frequency point and the frequency division exponent number of low pass frequency division module and high pass frequency division module, change the frequency by low pass frequency division module or high pass frequency division module audio signal, make it to adapt to diaphragm of loudspeaker performance change, and then make loud speaker obtain better tonequality expressive ability.
Concrete, as shown in Figure 1, described low pass frequency division module comprises multistage filter circuit, wherein n rank filter circuit comprises the bank of inductors L that connects with the bass horn unit Z1 of signal output part
NThe capacitor group C in parallel with the bass horn unit Z1 with signal output part
N, described bank of inductors L
NComprise the inductor L of series connection successively
n1, L
n2, L
n3...L
nX
n, described capacitor group C
NThe capacitor C that comprises mutual parallel connection
n1, C
n2, C
n3...C
nY
nAs shown in Figure 2, described high pass frequency division module comprises multistage filter circuit, and wherein m rank filter circuit comprises the capacitor group C that connects with the loudspeaker unit Z2 of signal output part
MWith the loudspeaker unit Z2 bank of inductors L in parallel with signal output part
M, described capacitor group C
MThe capacitor C that comprises mutual parallel connection
m1, C
m2, C
m3...C
mX
m, described bank of inductors L
MComprise the inductor L of series connection successively
m1, L
m2, L
m3...L
mY
mSwitch module all use in Fig. 1 and 2 as the capacitor of control assembly control capacitor group and the access state of the inductor in bank of inductors.
Described switch module comprises respectively and bank of inductors L
N, capacitor group C
N, bank of inductors L
MWith capacitor group C
MThe single pole multiple throw S of series connection
nL, S
nC, S
mL and S
mC, described single pole multiple throw S
nL and S
mThe selection contact jaw of L connects respectively bank of inductors L
NWith bank of inductors L
MIn node between adjacent two inductors; Single pole multiple throw S
nC and S
mThe selection contact jaw of C connects respectively capacitor group C
NWith capacitor group C
MIn each capacitor.Described single pole multiple throw S
nL and S
mC comprises that respectively makes a bank of inductors L when connecting
NWith capacitor group C
MThe selection contact jaw of short circuit, described single pole multiple throw S
nC and S
mL comprises respectively a unsettled selection contact jaw.
Inductor in described bank of inductors is the single-candidate inductance, and the capacitor in the capacitor group is for increasing progressively electric capacity.Described bank of inductors is for equidistantly to install many tap inductors of some taps additional in an inductance coil, described tap connects respectively the selection contact jaw of the single pole multiple throw of with these many tap inductors, connecting.
In the specific implementation, described control assembly also comprises with single pole multiple throw and being connected, and controls it and selects the automatic control module of switching.
Embodiment 1
As shown in Figure 3, be an embodiment of the low pass frequency division module in a kind of frequency divider of the utility model.The described low pass frequency division module of the present embodiment has 2 rank circuit structures, and wherein bass horn unit Z3 connects with external power amplifier V, bank of inductors, and is in parallel with the capacitor group.Described bank of inductors is installed additional the inductor L of the inductance value such as two of 1 centre tap acquisitions by an inductance coil
11 and L
12.L
11 and L
12 are provided with switch S with bass horn unit Z3 centre
11 connects with circuit, L
11 tap place is drawn a wire to described S
11 place, form S together with main circuit
12 gears of 1.Work as S
1When 1 wire of drawing with tap place joins, the L of described bank of inductors
11 place in circuit, make described low pass frequency divider have the filter effect of certain part-frequency point, namely by signal amplifier, transmitted in next simulated audio signal, only has the audio signal of frequency below part-frequency point to be sent to bass horn unit Z3 by described low pass frequency divider; Work as S
11 and L
1When the wire that draw 2 ends joins, L
11 and L
12 equal places in circuit, reduced the part-frequency point of low pass frequency divider.Simultaneously, described capacitor group of with bass horn unit Z3, connecting has comprised capacitor C
11, at C
1One end of the branch road at 1 place is provided with switch S
12.S
1During 2 disconnection, C
11 place in circuit not, described low pass frequency divider is single order low pass frequency divider; S
1During 2 closure, C
11 is in parallel with bass horn unit Z3, forms the step low-pass frequency divider, and the attenuation slope of frequency divider increases.
Switch S in the present embodiment
11 and S
1Be provided with automatic control module on 2, above-mentioned automatic control module can be connected with remote control,, in order to use the control of remote control equipment realization to described frequency divider, makes simple to operate, convenient.
As shown in Figure 4, be an embodiment of the high pass frequency division module in the frequency divider of a kind of changeable part-frequency point of the utility model and frequency division exponent number.The described high pass frequency divider of the present embodiment has 3 rank circuit structures, comprises switch S
11, S
12, S
21, loudspeaker unit Z4, capacitor group C
1And C
2, bank of inductors L
1Capacitor group C
1Comprise capacitor C
11, C
12, described C
1With external power amplifier V, S
1An end series connection of 1, S
1Series capacitor bank C between 1 other end and loudspeaker unit Z4
2And switch S
21, S
11 other end is also in parallel by bank of inductors L
1And S
12 branches that are composed in series.C
11, C
12 rears respectively have wire to cause S
11 place, form S together
12 gears of 1.S
21 one ends are connected with loudspeaker unit Z, an other end can with C
21 front end or rear end connect.Work as C
11 is connected with follow-up loop, and the bass frequencies signal in the simulated audio signal that external power amplifier V transmission can be come is removed and filters out the treble frequency signal, is transferred to follow-up loop and finally passes to loudspeaker unit Z4; Work as C
12 are connected with follow-up loop, C
11 place in circuit not, changed the part-frequency point in high pitch loop.Simultaneously, be provided with inductive bank in first order circuit in parallel with follow-up loop, described inductive bank installs 1 tap additional by 1 inductance coil and obtains equivalent inductor L
11 and L
12.Work as L
1The part-frequency point frequency ratio L in 1 access loop
11 and L
12 part-frequency point frequencies while all accessing loop want high.In like manner, S
21 can control C
2Whether 1 be connected on loudspeaker unit Z4, works as C
2During 1 series connection, integrated circuit is 3 scalariform states, in order to exponent number and minute yupin effect of adjusting whole filter.
Switch S in the present embodiment
11 and S
12, S
2Be provided with automatic control module on 1, above-mentioned automatic control module is the control handle that is arranged on stereo set, makes simple to operate, convenient.
Claims (8)
1. the frequency divider of a changeable part-frequency point and frequency division exponent number, comprise can stop the high band audio signal and allow low pass frequency division module that the low-frequency range audio signal passes through, can stop the low-frequency range audio signal and allow the high band audio signal by the high pass frequency division module, it is characterized in that: the control assembly that is respectively arranged with changeable part-frequency point and frequency division exponent number in described low pass frequency division module, high pass frequency division module;
Described low pass frequency division module comprises multistage filter circuit, wherein n rank filter circuit comprises the bank of inductors LN that connects with signal output part and the capacitor group CN in parallel with signal output part, described bank of inductors LN comprises inductor Ln1, Ln2, the Ln3...LnXn of series connection successively, and described capacitor group CN comprises capacitor Cn1, Cn2, the Cn3...CnYn of mutual parallel connection;
Described high pass frequency division module comprises multistage filter circuit, wherein m rank filter circuit comprises capacitor group CM and the bank of inductors LM in parallel with signal output part that connects with signal output part, described capacitor group CM comprises capacitor Cm1, Cm2, the Cm3...CmXm of mutual parallel connection, and described bank of inductors LM comprises inductor Lm1, Lm2, the Lm3...LmYm of series connection successively;
Described control assembly is the switch module of the access state of the capacitor of control capacitor group and the inductor in bank of inductors.
2. the frequency divider of changeable part-frequency point according to claim 1 and frequency division exponent number is characterized in that: also comprise can allow special frequency channel between high band and low-frequency range audio signal by and stop the band reduction of fractions to a common denominator frequency module of other frequency band audio signals.
3. the frequency divider of changeable part-frequency point according to claim 1 and 2 and frequency division exponent number, it is characterized in that: described switch module comprises single pole multiple throw SnL, SnC, SmL and the SmC that connects with bank of inductors LN, capacitor group CN, bank of inductors LM and capacitor group CM respectively, and described single pole multiple throw SnL is connected respectively the node between adjacent two inductors in bank of inductors LN and bank of inductors LM with the selection contact jaw of SmL; Single pole multiple throw SnC is connected respectively each capacitor in capacitor group CN and capacitor group CM with the selection contact jaw of SmC.
4. the frequency divider of changeable part-frequency point according to claim 3 and frequency division exponent number, it is characterized in that: described single pole multiple throw SnL and SmC comprise respectively a selection contact jaw that makes bank of inductors LN and capacitor group CM short circuit when connecting, and described single pole multiple throw SnC and SmL comprise respectively a unsettled selection contact jaw.
5. the frequency divider of changeable part-frequency point according to claim 4 and frequency division exponent number, it is characterized in that: the inductor in described bank of inductors is the single-candidate inductance, and the capacitor in the capacitor group is for increasing progressively electric capacity.
6. the frequency divider of changeable part-frequency point according to claim 5 and frequency division exponent number, it is characterized in that: described bank of inductors is for equidistantly to install many tap inductors of some taps additional in an inductance coil, described tap connects respectively the selection contact jaw of the single pole multiple throw of with these many tap inductors, connecting.
7. the frequency divider of changeable part-frequency point according to claim 6 and frequency division exponent number is characterized in that: described control assembly also comprises and is connected with single pole multiple throw and controls single pole multiple throw and select the automatic control module of switching.
8. the frequency divider of changeable part-frequency point according to claim 7 and frequency division exponent number is characterized in that: the exponent number of described multistage filter circuit is for being 2 or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203982027U CN203301718U (en) | 2013-07-05 | 2013-07-05 | Frequency divider with switchable frequency division points and frequency division orders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203982027U CN203301718U (en) | 2013-07-05 | 2013-07-05 | Frequency divider with switchable frequency division points and frequency division orders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203301718U true CN203301718U (en) | 2013-11-20 |
Family
ID=49577694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203982027U Expired - Fee Related CN203301718U (en) | 2013-07-05 | 2013-07-05 | Frequency divider with switchable frequency division points and frequency division orders |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203301718U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104780485A (en) * | 2015-03-23 | 2015-07-15 | 张廷亮 | Frequency divider of loudspeaker box |
| CN106488350A (en) * | 2015-08-27 | 2017-03-08 | 比亚迪股份有限公司 | Earphone |
| CN107509134A (en) * | 2017-10-10 | 2017-12-22 | 李龙根 | A kind of earphone second order passive frequency divider |
| CN112332726A (en) * | 2020-10-29 | 2021-02-05 | 合肥科威尔电源系统股份有限公司 | Adjustable reactor and equal-step-length adjusting method thereof |
-
2013
- 2013-07-05 CN CN2013203982027U patent/CN203301718U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104780485A (en) * | 2015-03-23 | 2015-07-15 | 张廷亮 | Frequency divider of loudspeaker box |
| CN106488350A (en) * | 2015-08-27 | 2017-03-08 | 比亚迪股份有限公司 | Earphone |
| CN106488350B (en) * | 2015-08-27 | 2019-11-22 | 比亚迪股份有限公司 | Earphone |
| CN107509134A (en) * | 2017-10-10 | 2017-12-22 | 李龙根 | A kind of earphone second order passive frequency divider |
| CN112332726A (en) * | 2020-10-29 | 2021-02-05 | 合肥科威尔电源系统股份有限公司 | Adjustable reactor and equal-step-length adjusting method thereof |
| CN112332726B (en) * | 2020-10-29 | 2022-06-07 | 合肥科威尔电源系统股份有限公司 | Adjustable reactor and equal-step-length adjusting method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203301718U (en) | Frequency divider with switchable frequency division points and frequency division orders | |
| CN105096976B (en) | A kind of audio system for controlling DSP with bluetooth approach by intelligent APP | |
| EP2712207A1 (en) | Audio signal broadcasting system and electronic apparatus | |
| CN108391196B (en) | Audio signal processing device and sound box | |
| KR20170117154A (en) | Method and apparatus for determining a preset parameter set of an audio equalizer (AEQ) | |
| EP2605549A1 (en) | Digital equalizing filters with fixed phase response | |
| RU2554273C1 (en) | Acoustic system | |
| CN105635466A (en) | Mobile communication terminal and audio circuit thereof | |
| CN203407000U (en) | Voice output adjustment circuit and audio and video playing equipment | |
| CN204206429U (en) | Audio signal processing | |
| CN201937549U (en) | Audio power amplification system and audio equipment | |
| CN203523011U (en) | Audio configuration device and TV audio system | |
| CN211720702U (en) | Sound box monomer and combined sound equipment | |
| RU146421U1 (en) | ACOUSTIC SYSTEM | |
| CN203761573U (en) | Electronic acoustic splitter | |
| CN204291295U (en) | A kind of microphone changing sound style | |
| CN203523026U (en) | Passive filter circuit having equalization sound dividing and spread spectrum tuning functions | |
| CN202310063U (en) | Digital audio frequency processor | |
| KR101395286B1 (en) | Digital audio processing apparatus having adaptive equalizers and method thereof | |
| CN207625776U (en) | A kind of apparatus for processing audio | |
| CN109889954A (en) | Full range multistage corrective network compensator | |
| CN204304948U (en) | A kind of high-pass filter | |
| CN105227151A (en) | Speech playing method and system | |
| CN104135325A (en) | Infrared receiving circuit and receiving method thereof | |
| CN218788835U (en) | Electronic and power mixed frequency division audio device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 516223 Difeni Industrial Park, Xinlian Village, Xinwei Town, Huiyang District, Huizhou City, Guangdong Province Patentee after: Huizhou Difenni Acoustics Technology Co., Ltd. Address before: 516223 Difeni Industrial Park, Xinlian Village, Xinwei Town, Huiyang District, Huizhou City, Guangdong Province Patentee before: Huizhou Ultrasonic Audio Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20210705 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |