EP0940827A1 - Self-inductance component - Google Patents
Self-inductance component Download PDFInfo
- Publication number
- EP0940827A1 EP0940827A1 EP99200505A EP99200505A EP0940827A1 EP 0940827 A1 EP0940827 A1 EP 0940827A1 EP 99200505 A EP99200505 A EP 99200505A EP 99200505 A EP99200505 A EP 99200505A EP 0940827 A1 EP0940827 A1 EP 0940827A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- self
- inductance component
- wound
- component according
- winding
- 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.)
- Granted
Links
- 238000004804 winding Methods 0.000 claims abstract description 10
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 10
- 238000010276 construction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910001035 Soft ferrite Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
Definitions
- the present invention relates to a self-inductance component comprising a winding wound on a rectilinear magnetic core.
- Such a component is used in television distribution systems by cable.
- a coil has a winding simple, wound on a magnetic core made up of a plurality of cylinders of ferrite placed in the extension of one another.
- a cable television distribution system includes antennas, amplifiers, cables and distribution boxes; a self-inductance component placed in these distributors allows to pass fairly intense supply currents, direct or alternating currents to 50 Hz, so as to supply the amplifiers via cables, from of power supplies located in a building.
- the frequency range transiting in these systems being very extensive, it is difficult to obtain that it component has both a high impedance at the highest frequencies low (5 MHz) and an absence of resonances at the highest frequencies.
- a parasitic modulation phenomenon at 50 Hz may appear, due to periodic saturation of the magnetic core.
- An object of the invention is to obtain correct operation in a frequency range as wide as 5 MHz to 3000 MHz, the component being traversed by an alternating current at 50 Hz of at least 5 amperes.
- the said magnetic core consists of several rods of ferrite placed side by side as in a bundle, and the winding is wound in partly in one direction and partly in the other.
- FIG. 1 represents a component according to the invention, seen in perspective.
- Figure 2 shows an example of the use of such a component.
- the component has a winding wound on a magnetic core straight consisting of several ferrite rods 1, 2, 3 placed side by side as in a bundle. Here they are three in number, and they are arranged with their axes equidistant from each other, forming an equilateral triangle.
- the winding is partly wound in one direction and partly in the other. he is made of part 4 between entry 6 and a midpoint 7, and part 5 between midpoint 7 and exit 8, these two parts being for example of equal lengths, possibly to the nearest revolution.
- part 4 the thread is wound in the direction indicated by arrow 9, and in part 5 the wire is wound in the opposite direction, indicated by arrow 10.
- the two parts are for example connected by solder in 7. At this point, the wire could also be bent to start again in the opposite direction.
- the distributor of Figure 2 is part for example of a network of television distribution not shown, it divides a signal on an input E, to send it to four outputs S1, S2, S3, S4. Upstream of the entrance E is finds any electronic circuit 12 which requires power. In downstream of outputs S1, S2, S3, S4 are electronic circuits any 24, 25, 26, 27 which each require power.
- the module SP is a module known in itself which realizes the high signal distribution frequency. The supply current is supplied by an AL supply on the connection 30, and reaches circuits 12, 24, 25, 26, 27 via components respectively 22, 34, 35, 36, 37, each of the model described above and represented by figure 1.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
Description
La présente invention concerne un composant à self-inductance comportant un enroulement bobiné sur un noyau magnétique rectiligne.The present invention relates to a self-inductance component comprising a winding wound on a rectilinear magnetic core.
Un tel composant est utilisé dans des systèmes de distribution de télévision par câble.Such a component is used in television distribution systems by cable.
Un composant selon le préambule ci-dessus est connu de la demande de brevet EP 0 642 142. Selon ce document, une bobine comporte un enroulement simple, bobiné sur un noyau magnétique constitué d'une pluralité de cylindres de ferrite placés dans le prolongement l'un de l'autre.A component according to the above preamble is known from the application for Patent EP 0 642 142. According to this document, a coil has a winding simple, wound on a magnetic core made up of a plurality of cylinders of ferrite placed in the extension of one another.
Un système de distribution de télévision par câble comprend des antennes, des amplificateurs, des câbles et des répartiteurs de distribution ; un composant à self-inductance placé dans ces répartiteurs permet de faire passer des courants d'alimentation assez intenses, courants continus ou alternatifs à 50 Hz, de façon à alimenter les amplificateurs via les câbles, à partir d'alimentations situées dans un bâtiment. La gamme de fréquences transitant dans ces systèmes étant très étendue, il est difficile d'obtenir que ce composant présente à la fois une impédance élevée aux fréquences les plus basses (5 Mhz) et une absence de résonances aux fréquences les plus élevées. En outre, lorsque le composant est parcouru par un courant alternatif important, un phénomène de modulation parasite à 50 Hz risque d'apparaítre, dû à une saturation périodique du noyau magnétique.A cable television distribution system includes antennas, amplifiers, cables and distribution boxes; a self-inductance component placed in these distributors allows to pass fairly intense supply currents, direct or alternating currents to 50 Hz, so as to supply the amplifiers via cables, from of power supplies located in a building. The frequency range transiting in these systems being very extensive, it is difficult to obtain that it component has both a high impedance at the highest frequencies low (5 MHz) and an absence of resonances at the highest frequencies. In addition, when the component is traversed by an alternating current important, a parasitic modulation phenomenon at 50 Hz may appear, due to periodic saturation of the magnetic core.
Un objet de l'invention est d'obtenir un fonctionnement correct dans une gamme de fréquences aussi étendue que 5 MHz à 3000 Mhz, le composant étant parcouru par un courant alternatif à 50 Hz d'au moins 5 ampères.An object of the invention is to obtain correct operation in a frequency range as wide as 5 MHz to 3000 MHz, the component being traversed by an alternating current at 50 Hz of at least 5 amperes.
A cet effet, le dit noyau magnétique est constitué de plusieurs bâtonnets de ferrite placés côte à côte comme dans un fagot, et l'enroulement est bobiné en partie dans un sens et en partie dans l'autre.To this end, the said magnetic core consists of several rods of ferrite placed side by side as in a bundle, and the winding is wound in partly in one direction and partly in the other.
Des modes particuliers de réalisation du composant apparaissent dans les
revendications dépendantes 2 à 4.Particular embodiments of the component appear in the
Ces aspects de l'invention ainsi que d'autres aspects plus détaillés apparaítront plus clairement grâce à la description suivante d'un mode de réalisation constituant un exemple non limitatif.These aspects of the invention as well as other more detailed aspects will appear more clearly from the following description of a mode of embodiment constituting a nonlimiting example.
La figure 1 représente un composant selon l'invention, vu en perspective.FIG. 1 represents a component according to the invention, seen in perspective.
La figure 2 représente un exemple d'utilisation d'un tel composant.Figure 2 shows an example of the use of such a component.
Le composant comporte un enroulement bobiné sur un noyau magnétique
rectiligne constitué de plusieurs bâtonnets de ferrite 1, 2, 3 placés côte à côte
comme dans un fagot. Ici ils sont au nombre de trois, et ils sont disposés avec
leurs axes équidistants l'un de l'autre, formant un triangle équilatéral.The component has a winding wound on a magnetic core
straight consisting of
L'enroulement est bobiné en partie dans un sens et en partie dans l'autre. Il
est fait d'une partie 4 entre l'entrée 6 et un point médian 7, et d'une partie 5
entre le point médian 7 et la sortie 8, ces deux parties étant par exemple de
longueurs égales, éventuellement à un tour près. Dans la partie 4 le fil est
bobiné dans le sens indiqué par la flèche 9, et dans la partie 5 le fil est bobiné
en sens inverse, indiqué par la flèche 10. Les deux parties sont par exemple
reliées par soudure en 7. En ce point, le fil pourrait aussi être plié pour repartir
dans la direction opposée.The winding is partly wound in one direction and partly in the other. he
is made of
On peut par exemple faire passer un courant de 6 ampères, à 50 Hz ou à 100 Hz, dans un composant constitué de trois barreaux de ferrite doux, du type dit "4B1", le bobinage étant fait de deux fois 11,5 tours jointifs de fil de 70/100, avec un diamètre de 4 à 5 mm. Les meilleurs résultats sont obtenus lorsque le fil est bobiné directement sur le fagot de bâtonnets de ferrite, c'est-à-dire sans mandrin support.We can for example pass a current of 6 amps, at 50 Hz or 100 Hz, in a component made up of three bars of soft ferrite, of the type called "4B1", the winding being made twice 11.5 contiguous turns of wire of 70/100, with a diameter of 4 to 5 mm. The best results are obtained when the wire is wound directly on the bundle of ferrite rods, i.e. without support mandrel.
Le répartiteur de la figure 2 fait partie par exemple d'un réseau de
distribution de télévision non représenté, il divise un signal sur une entrée E,
pour l'envoyer sur quatre sorties S1, S2, S3, S4. En amont de l'entrée E se
trouve un circuit électronique quelconque 12 qui nécessite une alimentation. En
aval des sorties S1, S2, S3, S4 se trouvent des circuits électroniques
quelconques 24, 25, 26, 27 qui nécessitent chacun une alimentation. Le module
SP est un module connu en soi qui réalise la répartition des signaux haute
fréquence. Le courant d'alimentation est fourni par une alimentation AL sur la
connexion 30, et parvient aux circuits 12, 24, 25, 26, 27 via des composants
respectivement 22, 34, 35, 36, 37, chacun étant du modèle décrit ci dessus et
représenté par la figure 1.The distributor of Figure 2 is part for example of a network of
television distribution not shown, it divides a signal on an input E,
to send it to four outputs S1, S2, S3, S4. Upstream of the entrance E is
finds any
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9802545 | 1998-03-03 | ||
FR9802545A FR2775824A1 (en) | 1998-03-03 | 1998-03-03 | SELF INDUCTANCE COMPONENT |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0940827A1 true EP0940827A1 (en) | 1999-09-08 |
EP0940827B1 EP0940827B1 (en) | 2003-11-19 |
Family
ID=9523571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99200505A Expired - Lifetime EP0940827B1 (en) | 1998-03-03 | 1999-02-23 | Self-inductance component |
Country Status (6)
Country | Link |
---|---|
US (1) | US6118363A (en) |
EP (1) | EP0940827B1 (en) |
JP (1) | JPH11288814A (en) |
DE (1) | DE69912869D1 (en) |
FR (1) | FR2775824A1 (en) |
SG (1) | SG74123A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002313630A (en) * | 2001-04-10 | 2002-10-25 | Uro Electronics Co Ltd | Choke coil |
JP2010288244A (en) * | 2009-06-12 | 2010-12-24 | Pixela Corp | Lnb interface circuit |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2290799A1 (en) * | 1974-11-07 | 1976-06-04 | Philips Nv | HIGH FREQUENCY SIGNAL TRANSMISSION DEVICE |
JPS5885511A (en) * | 1981-11-16 | 1983-05-21 | Nishi Nippon Control Kk | Manufacture of reactor |
EP0642142A2 (en) * | 1993-09-01 | 1995-03-08 | Philips Electronique Grand Public | Self-inductance coil |
JPH09330810A (en) * | 1996-06-07 | 1997-12-22 | Toyota Motor Corp | Low-loss core member |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2279239A (en) * | 1937-10-18 | 1942-04-07 | Bbc Brown Boveri & Cie | High tension transformer |
US5805042A (en) * | 1997-03-31 | 1998-09-08 | Scientific-Atlanta, Inc. | Radio frequency low hum-modulation AC bypass coil |
-
1998
- 1998-03-03 FR FR9802545A patent/FR2775824A1/en not_active Withdrawn
-
1999
- 1999-02-23 DE DE69912869T patent/DE69912869D1/en not_active Expired - Lifetime
- 1999-02-23 EP EP99200505A patent/EP0940827B1/en not_active Expired - Lifetime
- 1999-02-26 US US09/258,431 patent/US6118363A/en not_active Expired - Fee Related
- 1999-03-01 JP JP11052089A patent/JPH11288814A/en active Pending
- 1999-03-02 SG SG1999001050A patent/SG74123A1/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2290799A1 (en) * | 1974-11-07 | 1976-06-04 | Philips Nv | HIGH FREQUENCY SIGNAL TRANSMISSION DEVICE |
JPS5885511A (en) * | 1981-11-16 | 1983-05-21 | Nishi Nippon Control Kk | Manufacture of reactor |
EP0642142A2 (en) * | 1993-09-01 | 1995-03-08 | Philips Electronique Grand Public | Self-inductance coil |
JPH09330810A (en) * | 1996-06-07 | 1997-12-22 | Toyota Motor Corp | Low-loss core member |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 007, no. 178 (E - 191) 6 August 1983 (1983-08-06) * |
PATENT ABSTRACTS OF JAPAN vol. 098, no. 004 31 March 1998 (1998-03-31) * |
Also Published As
Publication number | Publication date |
---|---|
JPH11288814A (en) | 1999-10-19 |
US6118363A (en) | 2000-09-12 |
FR2775824A1 (en) | 1999-09-03 |
SG74123A1 (en) | 2000-07-18 |
DE69912869D1 (en) | 2003-12-24 |
EP0940827B1 (en) | 2003-11-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4945189A (en) | Asymmetric audio cable for high fidelity signals | |
EP0741254A3 (en) | Electromagnetic coil assembly for electromagnetic apparatus | |
FR2576409A1 (en) | ELECTROMAGNETIC FLOW METER | |
EP1821398A1 (en) | AC/DC converter with autotransformer | |
EP1679784B1 (en) | Three phase recitifier circuit comprising 12-pulse rectifiers | |
EP0940827B1 (en) | Self-inductance component | |
EP0642142B1 (en) | Self-inductance coil | |
EP0301923A1 (en) | Electric power supply, especially for a wave generator of a pulse radar | |
US6094110A (en) | RF choke with windings located at two different core diameters | |
WO2006056833A1 (en) | Isolating transformer | |
US20020067223A1 (en) | Ninety degree splitter | |
FR2677513A1 (en) | Electronic switching device for an antenna switchable in the VHF and UHF frequency ranges | |
US6118354A (en) | High frequency splitter | |
US4334228A (en) | Bifilar antenna trap | |
FR2798246A1 (en) | CONTROL CIRCUIT FOR A GAS DISCHARGE LAMP, PARTICULARLY FOR A MOTOR VEHICLE | |
FR2785335A1 (en) | IGNITION DEVICE FOR INTERNAL COMBUSTION ENGINE | |
EP0427841B1 (en) | Electic converter with several induction coils | |
FR3103625A1 (en) | Winding, corresponding production method and aircraft comprising such a winding | |
TW348256B (en) | Coil type electronic parts and its manufacturing method | |
US20210067196A1 (en) | Low Insertion Loss Network Device Having an Extended RF Spectrum | |
JP2544247Y2 (en) | Coaxial cable connection structure | |
EP1335501B1 (en) | Method for power line communication and coupling apparatus | |
RU2069022C1 (en) | High-frequency electromagnetic device winding | |
FR3112886A1 (en) | Assembly comprising at least a first and a second inductor | |
JP3592814B2 (en) | Passive equipment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB IT |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
17P | Request for examination filed |
Effective date: 20000308 |
|
AKX | Designation fees paid |
Free format text: DE FR GB IT |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20031119 Ref country code: GB Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20031119 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 69912869 Country of ref document: DE Date of ref document: 20031224 Kind code of ref document: P |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040220 |
|
GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 20031119 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041029 |
|
26N | No opposition filed |
Effective date: 20040820 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |