CN101330771A - Series frequency-reducing type frequency divider - Google Patents
Series frequency-reducing type frequency divider Download PDFInfo
- Publication number
- CN101330771A CN101330771A CNA2008101200584A CN200810120058A CN101330771A CN 101330771 A CN101330771 A CN 101330771A CN A2008101200584 A CNA2008101200584 A CN A2008101200584A CN 200810120058 A CN200810120058 A CN 200810120058A CN 101330771 A CN101330771 A CN 101330771A
- Authority
- CN
- China
- Prior art keywords
- inductance
- frequency
- series
- parallel
- high pitch
- 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.)
- Pending
Links
Images
Landscapes
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention discloses a series frequency-reduction frequency divider, which comprises a high pitch loudspeaker, mid-frequency loudspeakers numbering n minus 2 (n is larger than or equal to 3), and a basetone loudspeaker, and further comprises inductors numbering n minus 1 and corresponding to the number of the loudspeakers, and capacitors numbering n minus 1 and corresponding to the number of the loudspeakers; the inductors numbering n minus 1 are connected in series between an input end and an output end in sequence; a capacitor is respectively connected in parallel between the rear end of each inductor and the ground; both ends of a first inductor are connected in parallel with the high pitch loudspeaker; two ends of each of the other inductors are respectively connected in parallel with a mid-frequency loudspeaker; the basetone loudspeaker is connected in parallel between the output end and the ground. The frequency divider adopts elements, the number of which is equal to the number of first-order series frequency dividers, thereby achieving the frequency dividing effect of more than first orders; similar parallel frequency-reduction circuits, instead of whole frequency bands, are arranged at both ends of each mid-frequency loudspeaker and both ends of the basetone loudspeaker. The frequency-reduction effect is enhanced on the basis of reduced cost, and the performance-price-ratio of the frequency divider is enhanced.
Description
[technical field]
The present invention relates to loudspeaker enclosure divider, especially three frequency division and above frequency divider.
[technical background]
It is few that present single order series connection frequency divider has an element, the advantage that cost is low, but all loud speaker two ends of single order frequency divider are the full range band signal, divide yupin effect not ideal.And parallel frequency divider generally adopts second order or the above frequency dividing circuit of second order, and effect is good relatively, but element is more, the cost height.
[summary of the invention]
Purpose of the present invention is exactly in order to solve problems of the prior art, proposes a kind of series frequency-reducing type frequency divider, adopts less elements can obtain the above efficient frequency division of single order, can improve the cost performance of frequency divider.
For achieving the above object, patent of the present invention has proposed a kind of series frequency-reducing type frequency divider, comprise a high pitch loudspeaker, a n-2 Squawker, a woofer, n 〉=2, also comprise and the corresponding n-1 of an above-mentioned number of loudspeakers inductance and n-1 electric capacity, a described n-1 inductance is connected between input and the output successively, be parallel with an electric capacity between the rear end of each inductance and the ground respectively, the two ends of first inductance are parallel with high pitch loudspeaker, woofer in parallel between the two ends of other inductance Squawker respectively in parallel, output and ground.
As preferably, also be in series with the high pitch adjunct circuit between the end of the positive pole of described high pitch loudspeaker and first inductance; Also be in series with the middle pitch adjunct circuit between one end of the positive pole of each Squawker and inductance; The two ends of woofer are parallel with the bass compensation circuit.
As preferably, described high pitch adjunct circuit is made up of the high pitch damping resistance and the high pitch series connection frequency division electric capacity of series connection; The middle pitch adjunct circuit is made up of the middle pitch damping resistance and the middle pitch series connection frequency division electric capacity of series connection; The bass compensation circuit is made up of the bass damping resistance and the bass series connection frequency division electric capacity of series connection.
As preferably, also be in series with the separation inductance between per two continuous inductance, also be in series with the separation inductance between n-1 inductance and the output.Purpose makes each part-frequency point can open distance, prevents that peak valley from appearring in the crosspoint.
As preferably, the positive pole of described high pitch loudspeaker and and an end of first inductance between also be in series with capacitances in series frequency division electric capacity.
As preferably, the quantity of described Squawker is one, described first inductance, second inductance are connected between input and the output successively, be parallel with first electric capacity, second electric capacity between the rear end of first inductance, second inductance and the ground respectively, the two ends of first inductance are parallel with high pitch loudspeaker, the two ends of second inductance are parallel with Squawker, woofer in parallel between output and the ground.
For achieving the above object, patent of the present invention has also proposed a kind of middle pitch series frequency-reducing type frequency divider, comprise a high pitch loudspeaker, a n-2 Squawker, a woofer, n 〉=3, also comprise and the corresponding n of an above-mentioned number of loudspeakers inductance and n-1 electric capacity, a described n inductance is connected between input and the output successively, the two ends of first inductance are parallel with high pitch loudspeaker, after each Squawker and the capacitances in series, be connected between the rear end and ground of each inductance woofer in parallel between output and the ground.
The beneficial effect of patent of the present invention: connect with the single order element of frequency divider equal amount of employing of the present invention, reached the above branch yupin effect of single order, Squawker, woofer two ends are not the full range bands, similar is frequency dividing circuit in parallel.On the basis that reduces cost, improve the branch yupin effect, improved the cost performance of frequency divider.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
[description of drawings]
Fig. 1 is the circuit theory diagrams of the embodiment of the invention one;
Fig. 2 is the circuit theory diagrams of the embodiment of the invention two;
Fig. 3 is the circuit theory diagrams of the embodiment of the invention three;
Fig. 4 is the circuit theory diagrams of the embodiment of the invention four;
Fig. 5 is the circuit theory diagrams of the embodiment of the invention five;
Fig. 6 is the circuit theory diagrams of the embodiment of the invention six;
Fig. 7 is the circuit theory diagrams of the embodiment of the invention seven.
[embodiment]
Embodiment one:
Consult Fig. 1, be the three frequency division series frequency-reducing type frequency divider, comprise a high pitch loudspeaker T, Squawker M, woofer W, first inductance L
1, second inductance L
2, first capacitor C
1, second capacitor C
2, described first inductance L
1, second inductance L
2Be connected between input A and the output B first inductance L successively
1, second inductance L
2The rear end and ground between be parallel with first capacitor C respectively
1, second capacitor C
2, first inductance L
1Two ends be parallel with high pitch loudspeaker T, second inductance L
2Two ends be parallel with Squawker M, woofer W in parallel between output B and the ground.
Main frequency dividing circuit of the present invention is the low pass circuit of being made up of a plurality of inductance L and a plurality of capacitor C.Part-frequency point reduces successively, and loud speaker is connected across corresponding part-frequency point position according to the difference of part-frequency point.The three frequency division of present embodiment is typical frequency divider.
Signal from input A to output B, successively by first inductance L
1, first capacitor C
1, second inductance L
2, second capacitor C
2The low pass frequency dividing circuit of forming, woofer W is connected between output B and the ground; Squawker M is connected in parallel on second inductance L
2On, high pitch loudspeaker T is connected in parallel on first inductance L
1On.First inductance L
1With first capacitor C
1Form first part-frequency point.Second inductance L
2With second capacitor C
2Form second part-frequency point.Part-frequency point is from first, and second grade reduces successively.
As: first part-frequency point is 5000Hz, and second part-frequency point is 1500Hz.The computing formula of part-frequency point is the second order-3db frequency division formula of standard.First inductance L
1With first capacitor C
1The part-frequency point of forming 5000Hz.L
1＝0.36mH，C
1＝2.8uF。Second inductance L
2With second capacitor C
2The part-frequency point of forming 1500Hz.L
2＝1.2Mh，C
2＝9.3uF。
This divider circuit with connect frequency dividing ratio, high pitch has partly been simplified the high pitch channel loop.Series connection frequency divider high pitch needs 2 series connection of first capacitor C, 1, the second capacitor C, and second capacitor C, 2 capacity are bigger, and the high frequency internal resistance increases, and has improved the electric capacity internal resistance, and after simplifying, the high pitch loop only helps high pitch by first capacitor C 1 and reduces internal resistance.In, bass part is by operation principle, this circuit has adopted piecemeal the mode of filtering to carry out frequency division, first is first inductance L
1, first capacitor C
1The 5000Hz part-frequency point of forming.Second is second inductance L
2, second capacitor C
2The 1500Hz part-frequency point of forming, middle pitch is connected across between 5000Hz and the 1500Hz, and bass is connected on below the 1500Hz.
From high pitch loudspeaker T circuit mainly by first inductance L
1With first capacitor C
1The imitative second order frequency division of forming (definition of imitative second order: similar second order is incomplete same again, follow-up noun same interpretation); Squawker M is first inductance L
1With first capacitor C
1The imitative second order frequency division low pass part of forming is by second inductance L
2With second capacitor C
2Form imitative second order high pass part; Woofer W is by first inductance L
1, first capacitor C
1, second inductance L
2, second capacitor C
2The imitative four frequency division low pass circuits of forming.
Embodiment two:
Consult Fig. 2, be the multistage series frequency-reducing type frequency divider of n frequency division, comprise high pitch loudspeaker T, a n-2 Squawker M
1, M
2..., M
N-2, a woofer W, n 〉=2 also comprise the inductance L with the corresponding n-1 of above-mentioned number of loudspeakers
1, L
2..., L
N-1With n-1 capacitor C
1, C
2..., C
N-1, a described n-1 inductance L
1, L
2..., L
N-1Be connected on successively between input A and the output B, be parallel with an electric capacity between the rear end of each inductance and the ground respectively, first inductance L
1Two ends be parallel with high pitch loudspeaker T, other inductance L
1Two ends Squawker respectively in parallel, woofer W in parallel between output B and the ground.
The positive pole of described high pitch loudspeaker T and first inductance L
1An end between also be in series with the high pitch adjunct circuit; Also be in series with the middle pitch adjunct circuit between one end of the positive pole of each Squawker and inductance; The two ends of woofer W are parallel with the bass compensation circuit.
Described high pitch adjunct circuit is by the high pitch damping resistance R of series connection
TWith high pitch series connection frequency division capacitor C
TForm; The middle pitch adjunct circuit is by the middle pitch damping resistance R of series connection
MWith middle pitch series connection frequency division capacitor C
MForm; The bass compensation circuit is by the bass damping resistance R of series connection
WWith bass series connection frequency division capacitor C
WForm.
The circuit of present embodiment can be realized several frequency divisions, is L successively
1, C
1, L
2, C
2, L
3, C
3, L
4, C
4Low pass circuit Deng forming connects a loud speaker on each inductance, last bass is connected on the output B, and part-frequency point reduces successively.When frequency division quantity during greater than 3, when part-frequency point was a frequency multiplication, effect was desirable more.For example the part-frequency point of five frequency divisions is 6000,3000,1500, during 750Hz, just be frequency multiplication.
By above-mentioned explanation, thereby the present invention realizes reducing number of elements, and the above frequency division mode of single order is arranged again.Be characterized in: have the few advantage of series connection frequency division element, effective advantage in the multistage frequency division of frequency division in parallel is arranged again, the advantage that collects them is an one.
Present embodiment is the frequency dividing circuit that can realize the n frequency division.N is a positive integer.
Present embodiment n frequency dividing circuit is by main frequency dividing circuit, and n loud speaker adjunct circuit formed.Main frequency dividing circuit is made up of a plurality of inductance and a plurality of electric capacity.Main frequency division is by first inductance L
1, first capacitor C
1, second inductance L
2, second capacitor C
2The n-1 inductance L
N-1, the n-1 capacitor C
N-1The low pass dividing network circuit of Zu Chenging successively.High pitch loudspeaker T and adjunct circuit thereof are parallel to first inductance L
1On; Adjunct circuit is by series connection frequency division capacitor C
T, damping resistance R
TAnd high pitch loudspeaker T forms.Squawker M
1And adjunct circuit, be parallel to second inductance L
2On, adjunct circuit is by series connection frequency division capacitor C M
1, middle pitch damping resistance RM
1And Squawker M
1Form.Squawker M
N-2And adjunct circuit is in parallel and the n-1 inductance L
N-1On, adjunct circuit is by series connection frequency division capacitor C M
N-2, damping resistance RM
N-2And Squawker M
N-2Form.Woofer and adjunct circuit thereof, woofer are parallel between output B and the ground, and low pass loudspeaker impedance compensating circuit, is parallel between output B and the ground with after resistance R W connects by capacitor C W.
Embodiment three:
Consult Fig. 3,, on the basis of embodiment one, increased series connection frequency division capacitor C for the improved three frequency division series frequency-reducing type frequency divider of high pitch
T, capacitances in series frequency division capacitor C
TThe positive pole that is connected on high pitch loudspeaker T with first inductance L
1An end between.
Embodiment four:
Consult Fig. 4 ,-6db level point intersection three frequency division series frequency-reducing type frequency divider is on the basis of embodiment one, two, in first inductance L
1With second inductance L
2Between series connection separate inductance, in second inductance L
2With the separation inductance of connecting between the output B.Purpose makes each part-frequency point can open distance, prevents that peak valley from appearring in the crosspoint.
Embodiment five:
Consult Fig. 5, be the tri-frequency divider of middle pitch series connection (with the low pass capacitances in series).Improved the Squawker mode of connection.Squawker M connects with second capacitor C 2, and middle pitch damping resistance RM is in parallel with Squawker M; Between middle pitch and output B, increased by the 3rd inductance L 3.
What adopt in the present embodiment is three frequency division, in like manner, can adopt 2 or above middle pitch, constitutes many frequency divisions.Be specially and comprise high pitch loudspeaker T, a n-2 Squawker M
1, M
2..., M
N-2, a woofer W, n 〉=3 also comprise the inductance L with the corresponding n of above-mentioned number of loudspeakers
1, L
2..., L
nWith n-1 capacitor C
1, C
2..., C
N-1, a described n inductance L
1, L
2..., L
nBe connected between input A and the output B first inductance L successively
1Two ends be parallel with high pitch loudspeaker T, after each Squawker and the capacitances in series, be connected between the rear end and ground of each inductance woofer W in parallel between output B and the ground.
Embodiment six:
Consult Fig. 6, be the circuit diagram of the present invention when public with frequency division in parallel.The present invention and the common circuit diagram that uses of frequency division high pitch part in parallel.The high pitch part is made of the second order frequency dividing circuit in parallel of standard inductance L T and capacitor C T and high pitch.
Embodiment seven:
Consult Fig. 7, present embodiment is many frequency divisions series frequency-reducing type frequency divider, is on the basis of embodiment one, and three frequency division is expanded to many frequency divisions.
Frequency dividing circuit of the present invention is the low pass circuit of being made up of inductance L and capacitor C, and inductance is in series in other words.Part-frequency point reduces successively.And can add and traditional loud speaker adjunct circuit damping resistance for example, impedance compensation circuit.And Squawker can be connected with capacitor C.Also can together use with parallel frequency divider.Be widely used, mode is flexible.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (7)
1. series frequency-reducing type frequency divider comprises a high pitch loudspeaker (T), a n-2 Squawker (M
1, M
2..., M
N-2), a woofer (W), n 〉=2 is characterized in that: also comprise the inductance (L with the corresponding n-1 of above-mentioned number of loudspeakers
1, L
2..., L
N-1) and n-1 electric capacity (C
1, C
2..., C
N-1), described n-1 inductance (L
1, L
2..., L
N-1) be connected on successively between input (A) and the output (B), be parallel with an electric capacity between the rear end of each inductance and the ground respectively, the first inductance (L
1) two ends be parallel with high pitch loudspeaker (T), other inductance (L
1) two ends Squawker respectively in parallel, woofer in parallel (W) between output (B) and the ground.
2. series frequency-reducing type frequency divider as claimed in claim 1 is characterized in that: the positive pole of described high pitch loudspeaker (T) and the first inductance (L
1) an end between also be in series with the high pitch adjunct circuit; Also be in series with the middle pitch adjunct circuit between one end of the positive pole of each Squawker and inductance; The two ends of woofer (W) are parallel with the bass compensation circuit.
3. series frequency-reducing type frequency divider as claimed in claim 2 is characterized in that: described high pitch adjunct circuit is by the high pitch damping resistance (R of series connection
T) and high pitch series connection frequency division electric capacity (C
T) form; The middle pitch adjunct circuit is by the middle pitch damping resistance (R of series connection
M) and middle pitch series connection frequency division electric capacity (C
M) form; The bass compensation circuit is by the bass damping resistance (R of series connection
W) and bass series connection frequency division electric capacity (C
W) form.
4. series frequency-reducing type frequency divider as claimed in claim 3 is characterized in that: also be in series with the separation inductance, n-1 inductance (L between per two continuous inductance
N-1) and output (B) between also be in series with the separation inductance.
5. series frequency-reducing type frequency divider as claimed in claim 1 is characterized in that: the positive pole of described high pitch loudspeaker (T) with the first inductance (L
1) an end between also be in series with capacitances in series frequency division electric capacity (C
T).
6. series frequency-reducing type frequency divider as claimed in claim 1 is characterized in that: the quantity of described Squawker is one, the described first inductance (L
1), the second inductance (L
2) be connected between input (A) and the output (B) the first inductance (L successively
1), the second inductance (L
2) the rear end and ground between be parallel with the first electric capacity (C respectively
1), the second electric capacity (C
2), the first inductance (L
1) two ends be parallel with high pitch loudspeaker (T), the second inductance (L
2) two ends be parallel with Squawker (M
1), woofer in parallel (W) between output (B) and the ground.
7. the middle pitch series frequency-reducing type frequency divider comprises a high pitch loudspeaker (T), a n-2 Squawker (M
1, M
2..., M
N-2), a woofer (W), n 〉=3 is characterized in that: also comprise the inductance (L with the corresponding n of above-mentioned number of loudspeakers
1, L
2..., L
n) and n-1 electric capacity (C
1, C
2..., C
N-1), described n inductance (L
1, L
2..., L
n) be connected between input (A) and the output (B) the first inductance (L successively
1) two ends be parallel with high pitch loudspeaker (T), after each Squawker and the capacitances in series, be connected between the rear end and ground of each inductance woofer in parallel (W) between output (B) and the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101200584A CN101330771A (en) | 2008-07-17 | 2008-07-17 | Series frequency-reducing type frequency divider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101200584A CN101330771A (en) | 2008-07-17 | 2008-07-17 | Series frequency-reducing type frequency divider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101330771A true CN101330771A (en) | 2008-12-24 |
Family
ID=40206301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101200584A Pending CN101330771A (en) | 2008-07-17 | 2008-07-17 | Series frequency-reducing type frequency divider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101330771A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108429982A (en) * | 2018-04-18 | 2018-08-21 | 郑治龙 | A kind of high response audio frequency dividers |
| CN113314311A (en) * | 2021-05-27 | 2021-08-27 | 海宁德科隆电子有限公司 | Magnetic core structure and sound inductance assembly and frequency division circuit using same |
| CN114269039A (en) * | 2022-03-01 | 2022-04-01 | 南昌硅基半导体科技有限公司 | LED device with high electro-optic modulation bandwidth |
-
2008
- 2008-07-17 CN CNA2008101200584A patent/CN101330771A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108429982A (en) * | 2018-04-18 | 2018-08-21 | 郑治龙 | A kind of high response audio frequency dividers |
| CN113314311A (en) * | 2021-05-27 | 2021-08-27 | 海宁德科隆电子有限公司 | Magnetic core structure and sound inductance assembly and frequency division circuit using same |
| CN114269039A (en) * | 2022-03-01 | 2022-04-01 | 南昌硅基半导体科技有限公司 | LED device with high electro-optic modulation bandwidth |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101933343B (en) | An electrostatic speaker system | |
| Wheeler | Wide-band amplifiers for television | |
| CN103684340A (en) | Filter, portable terminal and electronic component | |
| RU2453985C1 (en) | Highly selective band-pass tuneable lc filter | |
| US20090189714A1 (en) | Layered low-pass filter | |
| CA2382512A1 (en) | Improved crossover filters and method | |
| TW200514350A (en) | Laminated low pass filter | |
| CN209608623U (en) | Filter circuit and multiplexer | |
| CN101330771A (en) | Series frequency-reducing type frequency divider | |
| JP4279539B2 (en) | Resistance attenuator | |
| CN201248125Y (en) | Cascade frequency-dropping type frequency divider | |
| CN110113065A (en) | The antenna assembly and electronic equipment of electronic equipment | |
| JP2017005477A (en) | Ladder filter, demultiplexer and module | |
| CN104506158A (en) | Analog band pass filter | |
| RU2372711C1 (en) | Bandpass high-selectivity lc-filter | |
| CN204362009U (en) | A kind of analog bandpass filtering device | |
| CN113161708A (en) | Three-way power divider | |
| US8467522B2 (en) | Universal ISDN/POTS splitter | |
| CN213305735U (en) | Computer sound effect enhancing circuit | |
| CN210839493U (en) | Dual-input dual-output low-noise amplifier | |
| CN106033954B (en) | A kind of antenna combiner | |
| CN2779775Y (en) | A system capable of eliminating thermal effect of loudspeaker | |
| CN220067388U (en) | Filtering circuit and filter | |
| JPH10327036A (en) | Output circuit for d/a converter | |
| US11757424B2 (en) | Band-pass filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20081224 |