CN101262536B - A realization method and device for ring current and magnetic ring signal - Google Patents
A realization method and device for ring current and magnetic ring signal Download PDFInfo
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- CN101262536B CN101262536B CN2007100642516A CN200710064251A CN101262536B CN 101262536 B CN101262536 B CN 101262536B CN 2007100642516 A CN2007100642516 A CN 2007100642516A CN 200710064251 A CN200710064251 A CN 200710064251A CN 101262536 B CN101262536 B CN 101262536B
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Abstract
The invention relates to a method and a device for realizing ringing current and magnetic fluid signals. The method comprises the following specific steps: a first output end of a ringing current module is overlapped to a direct current negative input end and another input end of the ringing current module is connected with a grounding terminal; a magnetic fluid signal output wire is connected with a second output end of the ringing current module to output magnetic fluid signals; a first capacitance is parallelly connected with the second output end of the ringing current module and the magnetic fluid signal output wire as a negative output end of the magnetic fluid signals; a second capacitance is serially connected with the grounding terminal as a positive end of the magnetic fluid signals. Therefore, the method and the device of the invention can be realized by utilizing the ringing current module to generate the ringing current and the magnetic fluid signals, thus greatly saving the cost.
Description
Technical field
The present invention relates to communication technical field, relate in particular to the implementation method and the device of a ringing-current and magnetic fluid signal.
Background technology
Ringing signal and magnetic fluid signal are respectively the common-battery substation at terminal in the switch and two kinds of signals that the magnetite substation provides, and described two kinds of signals all are to adopt different modes to realize through the ringing-current module, and are specific as follows:
The generation circuit of ringing signal is as shown in Figure 1: with an end connection-48V power supply of ringing-current module incoming end; The other end connects simulation ground; Simultaneously with ringing-current module output another output signal as offset signal be superimposed upon input- 48V is last; Produce the ringing signal RING that a 25HZ exchanges 75V, be used for sending ring to the substation of common-battery interface.
The magnetic fluid signal is a two wires balanced to ground signal; It is as shown in Figure 2 that it produces circuit: with an end connection-48V power supply of ringing-current module incoming end; The other end connects simulation ground, produces magnetic fluid signal SRING-, SRING+ that two balanced-to-ground 25HZ exchange 75V, is used for sending ring to the magnetite phone of magnetite interface; Usually be applied to the magnetite phone in the army, in order to when sending a telegram here, to send the tinkle of bells.
This shows that the scheme of above-mentioned generation ringing signal and magnetic fluid signal adopts two ringing-current modules to realize that cost is higher.
Yet, along with the continuous development of modern communication technology, wanting to be based on except the technology that pursuit is advanced, also need effectively reduce cost in this fast-developing industry, this has become the emphasis of each enterprises pay attention.
Summary of the invention
The embodiment of the invention provides the implementation method and the device of a ringing-current and magnetic fluid signal, can realize producing ringing signal and magnetic fluid signal simultaneously with a ringing-current module through this method.
The objective of the invention is to realize through following technical scheme:
The implementation method of a kind of ringing-current and magnetic fluid signal comprises:
With ringing-current module first output direct current negative input end that is added to, another input of described ringing-current module is connected earth terminal, at the described ringing-current module second output termination ringing signal output line, output ringing signal;
At second output of ringing-current module and ringing signal output line first electric capacity that is connected in parallel, as the negative magnetic fluid signal of cathode output end output of magnetic fluid signal, said magnetic fluid signal is the bell signal of magnetite phone;
With earth terminal second electric capacity of connecting, export positive magnetic fluid signal as the cathode output end of magnetic fluid signal.
The described ringing-current module first output direct current-48V input that is added to.
Described first electric capacity is identical with second capacitance size, and withstand voltage is more than or equal to 250V.
Described negative magnetic fluid signal is balanced-to-ground two signals with positive magnetic fluid signal.
The implement device of a kind of ringing-current and magnetic fluid signal comprises a ringing-current module, first electric capacity and second electric capacity, wherein,
Described ringing-current module first output direct current negative input end that is added to, another input connects earth terminal, in order at the described ringing-current module second output termination ringing signal output line, output ringing signal;
Second output of said first electric capacity connection ringing-current module is parallelly connected with the ringing signal output line, exports a negative magnetic fluid signal, and said magnetic fluid signal is the bell signal of magnetite phone;
Described second electric capacity is connected with earth terminal, exports positive magnetic fluid signal as the cathode output end of magnetic fluid signal.
Described ringing-current module first output is added to-the 48V input.
Described first electric capacity is identical with second capacitance size, and withstand voltage is more than or equal to 250V.
Described negative magnetic fluid signal is balanced-to-ground two signals with positive magnetic fluid signal.
Technical scheme by the invention described above embodiment provides can be found out; The embodiment of the invention specifically comprises ringing-current module first output direct current negative input end that is added to; Another input of described ringing-current module is connected earth terminal; At the described ringing-current module second output termination ringing signal output line, output ringing signal; In second output of ringing-current module and ringing signal output line first capacitor C 1 that is connected in parallel, as the cathode output end of magnetic fluid signal; With earth terminal second capacitor C 2 of connecting, as the cathode output end of magnetic fluid signal.Therefore, realization of the present invention can utilize a ringing-current module to produce ringing-current and magnetic fluid signal, has practiced thrift cost greatly.
Description of drawings
Fig. 1 is for providing the implementation method sketch map of ringing signal in the prior art;
Fig. 2 is for providing the implementation method sketch map of magnetic fluid signal in the prior art;
The ringing-current that Fig. 3 provides for the embodiment of the invention and the implementation method sketch map of magnetic fluid signal.
Embodiment
The embodiment of the invention provides the implementation method of a ringing-current and magnetic fluid signal; Specifically comprise: with one of ringing-current module output signal be added to input-48V is last; Produce a ringing signal RING, and be connected in parallel a withstand voltage more than or equal to the electric capacity of 250V, again with the electric capacity of string same withstand voltage in ground more than or equal to 250V at the output of the ringing signal of ringing-current module output; And the parallel connection of two electric capacity produces the balanced-to-ground SRING-of two lines, SRING+ magnetic fluid signal.Wherein,
Described ringing signal production method: with the ringing-current module first output direct current-48V input that is added to; Another input of described ringing-current module is connected earth terminal GND; At the described ringing-current module second output termination ringing signal output line, output ringing signal.
Described magnetic fluid signal generating method: in second output of ringing-current module and ringing signal output line first capacitor C 1 that is connected in parallel, as the cathode output end of magnetic fluid signal; With earth terminal second capacitor C 2 of connecting,, produce the balanced-to-ground SRING-of two lines, SRING+ magnetic fluid signal as the cathode output end of magnetic fluid signal.
Combine Fig. 1,2,3 to specify the principle that produces the magnetic fluid signal with two identical electric capacity of size at present.
As shown in Figure 3; The ringing-current module produce ringing signal RING be one and be superimposed upon-the last offset signal of 48V; Identical with the SRING-signal among Fig. 2, and the SRING+ among Fig. 3 is identical with SRING+ among Fig. 2, in Fig. 3, adds two electric capacity that size is identical; With the synchronous waveform of two sine waves, thereby produce the balanced-to-ground magnetic fluid signal in two wires.
The implement device that the embodiment of the invention also provides a ringing-current module to produce ringing-current and magnetic fluid signal comprises ringing-current module and two electric capacity of a generation ringing signal;
Described electric capacity parallel connection, one of them electric capacity connects the ringing signal that the ringing-current module produces, and another electric capacity connects simulation ground, in order to produce the balanced-to-ground SRING-in two wires, SRING+ magnetic fluid signal.
To combine Fig. 3 specific embodiments of the invention to explain at present.
As shown in Figure 3; At first with an end connection-48V power supply of ringing-current module incoming end; The other end connects simulation ground, simultaneously with in two output signals of ringing-current module output-VOUT as offset signal be superimposed upon input-48V is last, another output produces a ringing signal RING.
Afterwards; Withstand voltage of parallel connection is more than or equal to the capacitor C 1 of 250V on the ringing signal of output; Again with the capacitor C 2 of string same withstand voltage in ground more than or equal to 250V, and two capacitance size are identical, so just produce the balanced-to-ground SRING-of two lines, SRING+ magnetic fluid signal respectively.
This shows,, intactly realized ringing-current and magnetic fluid signal being provided simultaneously with a ringing-current module through this technical scheme.Obviously, the circuit of realizing in this way not only can effectively be practiced thrift cost, implements also easy, understandable.
The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (8)
1. the implementation method of ringing-current and magnetic fluid signal is characterized in that, comprising:
With ringing-current module first output direct current negative input end that is added to, another input of described ringing-current module is connected earth terminal, at the described ringing-current module second output termination ringing signal output line, output ringing signal;
At second output of ringing-current module and ringing signal output line first electric capacity that is connected in parallel, as the negative magnetic fluid signal of cathode output end output of magnetic fluid signal, said magnetic fluid signal is the bell signal of magnetite phone;
With earth terminal second electric capacity of connecting, export positive magnetic fluid signal as the cathode output end of magnetic fluid signal.
2. the implementation method of a kind of ringing-current according to claim 1 and magnetic fluid signal is characterized in that, the described ringing-current module first output direct current-48V input that is added to.
3. the implementation method of a kind of ringing-current according to claim 1 and 2 and magnetic fluid signal is characterized in that, described first electric capacity is identical with second capacitance size, and withstand voltage is more than or equal to 250V.
4. the implementation method of a kind of ringing-current according to claim 1 and 2 and magnetic fluid signal is characterized in that, described negative magnetic fluid signal is balanced-to-ground two signals with positive magnetic fluid signal.
5. the implement device of ringing-current and magnetic fluid signal is characterized in that, comprises a ringing-current module, first electric capacity and second electric capacity, wherein,
Described ringing-current module first output direct current negative input end that is added to, another input connects earth terminal, in order at the described ringing-current module second output termination ringing signal output line, output ringing signal;
Second output of said first electric capacity connection ringing-current module is parallelly connected with the ringing signal output line, exports a negative magnetic fluid signal, and said magnetic fluid signal is the bell signal of magnetite phone;
Described second electric capacity is connected with earth terminal, exports positive magnetic fluid signal as the cathode output end of magnetic fluid signal.
6. the implement device of a kind of ringing-current according to claim 5 and magnetic fluid signal is characterized in that, described ringing-current module first output is added to-the 48V input.
7. according to the implement device of claim 5 or 6 described a kind of ringing-currents and magnetic fluid signal, it is characterized in that described first electric capacity is identical with second capacitance size, and withstand voltage is more than or equal to 250V.
8. according to the implement device of claim 5 or 6 described a kind of ringing-currents and magnetic fluid signal, it is characterized in that described negative magnetic fluid signal is balanced-to-ground two signals with positive magnetic fluid signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100642516A CN101262536B (en) | 2007-03-07 | 2007-03-07 | A realization method and device for ring current and magnetic ring signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100642516A CN101262536B (en) | 2007-03-07 | 2007-03-07 | A realization method and device for ring current and magnetic ring signal |
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| Publication Number | Publication Date |
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| CN101262536A CN101262536A (en) | 2008-09-10 |
| CN101262536B true CN101262536B (en) | 2012-01-25 |
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| CN2007100642516A Expired - Fee Related CN101262536B (en) | 2007-03-07 | 2007-03-07 | A realization method and device for ring current and magnetic ring signal |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986680B (en) * | 2009-07-29 | 2013-12-11 | 中国科学院空间科学与应用研究中心 | Interface circuit module of magneto exchange and city telephone and control method thereof |
| CN102510415B (en) * | 2011-12-26 | 2014-10-01 | 北京世纪东方国铁科技股份有限公司 | Magnet telephone converter |
| CN105744103A (en) * | 2016-04-15 | 2016-07-06 | 天地（常州）自动化股份有限公司 | Voltage/current independent, continuous and adjustable signal device of direct current/ringing current |
| CN110099177B (en) * | 2019-03-22 | 2021-12-14 | 珠海高凌信息科技股份有限公司 | Voice detection and processing circuit of telephone |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1396768A (en) * | 1972-09-16 | 1975-06-04 | Plessey Co Ltd | Ringtrip circuits |
| CN2106452U (en) * | 1991-07-08 | 1992-06-03 | 叶太志 | Synthetical carried telephone |
| CN2200263Y (en) * | 1994-05-13 | 1995-06-07 | 穆殿英 | Portable telephone set for overhauling |
| CN2604808Y (en) * | 2003-01-24 | 2004-02-25 | 石家庄国耀电子科技有限公司 | Overcurrent and short-circuit protector for ringing current generator |
-
2007
- 2007-03-07 CN CN2007100642516A patent/CN101262536B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1396768A (en) * | 1972-09-16 | 1975-06-04 | Plessey Co Ltd | Ringtrip circuits |
| CN2106452U (en) * | 1991-07-08 | 1992-06-03 | 叶太志 | Synthetical carried telephone |
| CN2200263Y (en) * | 1994-05-13 | 1995-06-07 | 穆殿英 | Portable telephone set for overhauling |
| CN2604808Y (en) * | 2003-01-24 | 2004-02-25 | 石家庄国耀电子科技有限公司 | Overcurrent and short-circuit protector for ringing current generator |
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| CN101262536A (en) | 2008-09-10 |
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