EP0352834A2 - Aperiodic generator - Google Patents
Aperiodic generator Download PDFInfo
- Publication number
- EP0352834A2 EP0352834A2 EP89201665A EP89201665A EP0352834A2 EP 0352834 A2 EP0352834 A2 EP 0352834A2 EP 89201665 A EP89201665 A EP 89201665A EP 89201665 A EP89201665 A EP 89201665A EP 0352834 A2 EP0352834 A2 EP 0352834A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- transformer
- windings
- aperiodic
- magnetic circuit
- fraction
- 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.)
- Withdrawn
Links
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
Definitions
- aperiodic generator The technique of induction heating generators called aperiodic generator has given rise to the creation of means of precise adaptation of these generators to their load.
- these means are constituted by adaptation transformers distinct from the aperiodic transformer and which include windings provided with sockets, making it possible to transfer the power of the generator to the particular load connected to its terminals.
- the present invention relates to a modification of the aperiodic transformer consisting in providing one or more auxiliary windings on the magnetic circuit of the transformer in order to allow this adaptation.
- the aperiodic transformer is usually made on a magnetic circuit called battleship.
- the windings are arranged on the central leg on which the winding is carried out.
- the magnetic circuit loops back on either side of the central leg via 2 side legs.
- Each of the side legs has a section which is half that of the central leg.
- These magnetic circuits are usually produced by the juxtaposition of ferrite circuits U.
- the magnetic flux which circulates in the central leg is divided into 2 equal fractions and which circulates in the lateral legs.
- the tension by turns induced in a winding wound on each of the lateral legs will therefore have a tension half lower than a winding wound on the central leg. This results in the possibility of producing voltages which will be a fraction of those available between two consecutive turns of the aperiodic transformer.
- the voltage per turn is of the order of 200 volts.
- the secondary voltage usually used is 350 to 500 volts.
- the user will have 0 - 200 - 400 - 600 volt sockets.
- the voltage generated will be 100 volts per turn instead of 200.
- this device makes it possible to solve the majority of adaptation problems. It is also possible to install windings on half of each side leg. We will thus have a new division by 2, or 50 volts per turn.
- This device has two advantages compared to previous techniques, on the one hand, it allows a fine adaptation of the generator from the aperiodic transformer, on the other hand, it avoids an auxiliary adaptation transformer. All the secondary terminals, from 100 to 100 volts or from 50 to 50 volts, are available to the user without having to perform any switching operations.
- the attached figure illustrates a possible embodiment of the device which is the subject of the invention.
- the two windings a and b are wound on the central leg of a magnetic circuit e.
- Two additional windings respectively c and d are wound on the lateral legs of said circuit and connected between the sockets 2 and 3 and 3 and 4 of the secondary winding b. These two windings are themselves provided with a median grip marked 2.5 and 3.5.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Eletrric Generators (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
Description
La technique des générateurs de chauffage par induction dit générateur apériodique a donné lieu à la création de moyens d'adaptation précis de ces générateurs à leur charge.The technique of induction heating generators called aperiodic generator has given rise to the creation of means of precise adaptation of these generators to their load.
Dans tous les cas, ces moyens sont constitués par des transformateurs d'adaptation distincts du transformateur apériodique et qui comportent des enroulements pourvus de prises, permettant de transférer la puissance du générateur à la charge particulière connectée à ses bornes.In all cases, these means are constituted by adaptation transformers distinct from the aperiodic transformer and which include windings provided with sockets, making it possible to transfer the power of the generator to the particular load connected to its terminals.
La présente invention a pour objet une modification du transformateur apériodique consistant à prévoir un ou plusieurs enroulements auxiliaires sur le circuit magnétique du transformateur dans le but de permettre cette adaptation.The present invention relates to a modification of the aperiodic transformer consisting in providing one or more auxiliary windings on the magnetic circuit of the transformer in order to allow this adaptation.
Le transformateur apériodique est habituellement réalisé sur un circuit magnétique dit cuirassé. Les enroulements sont disposés sur la jambe centrale sur lequel est effectué l'enroulement. Le circuit magnétique se reboucle de part et d'autre de la jambe centrale par l'intermédiaire de 2 jambes latérales. Chacune des jambes latérales a une section qui est la moitié de celle de la jambe centrale.The aperiodic transformer is usually made on a magnetic circuit called battleship. The windings are arranged on the central leg on which the winding is carried out. The magnetic circuit loops back on either side of the central leg via 2 side legs. Each of the side legs has a section which is half that of the central leg.
Ces circuits magnétiques sont habituellement réalisés par la juxtaposition de circuits U en ferrite.These magnetic circuits are usually produced by the juxtaposition of ferrite circuits U.
Le flux magnétique qui circule dans la jambe centrale se divise en 2 fractions égales et qui circulent dans les jambes latérales. La tension par spires induite dans un enroulement bobiné sur chacune des jambes latérales aura donc une tension moitié moins élevée qu'un enroulement bobiné sur la jambe centrale. Il en résulte la possibilité de produire des tensions qui seront une fraction de celles dont on dispose entre deux spires consécutives du transformateur apériodique.The magnetic flux which circulates in the central leg is divided into 2 equal fractions and which circulates in the lateral legs. The tension by turns induced in a winding wound on each of the lateral legs will therefore have a tension half lower than a winding wound on the central leg. This results in the possibility of producing voltages which will be a fraction of those available between two consecutive turns of the aperiodic transformer.
A titre d'exemple, dans un transformateur apériodique haute fréquence, la tension par spire est de l'ordre de 200 volts.
La tension secondaire habituellement utilisée est de 350 à 500 volts. Sans répartiteur de tension, l'utilisateur disposera des prises 0 - 200 - 400 - 600 volts.For example, in a high frequency aperiodic transformer, the voltage per turn is of the order of 200 volts.
The secondary voltage usually used is 350 to 500 volts. Without a voltage distributor, the user will have 0 - 200 - 400 - 600 volt sockets.
Si l'on dispose de 2 enroulements c et d, effectués sur l'une des 2 jambes ou les 2 jambes latérales du transformateur, la tension engendrée sera de 100 volts par spire au lieu de 200.If there are 2 windings c and d, carried out on one of the 2 legs or the 2 lateral legs of the transformer, the voltage generated will be 100 volts per turn instead of 200.
Il sera dès lors possible d'ajouter ou de soustraire les tensions ainsi engendrées, aux tensions existantes sur l'enroulement secondaire b. On pourra ainsi disposer des tensions 0 - 100 - 200 - 300 - 400 - 500 - 600 volts. En pratique on se limitera à 300 - 400 et 500 volts.It will therefore be possible to add or subtract the voltages thus generated, from the existing voltages on the secondary winding b. This will provide voltages 0 - 100 - 200 - 300 - 400 - 500 - 600 volts. In practice, we will limit ourselves to 300 - 400 and 500 volts.
Tel qu'il vient d'être décrit ce dispositif permet de résoudre la majorité des problèmes d'adaptation. Il est également possible d'installer des enroulements sur la moitié de chaque jambe latérale. On disposera ainsi d'une nouvelle division par 2, soit 50 volts par spire. Ce dispositif présente deux avantages par rapport aux techniques antérieures, d'une part, il permet une adaptation fine du générateur à partir du transformateur apériodique, d'autre part, il évite un transformateur auxiliaire d'adaptation. Toutes les bornes secondaires, de 100 en 100 volts ou de 50 en 50 volts, sont à la disposition de l'utilisateur sans qu'il ait à effectuer des commutations.As just described, this device makes it possible to solve the majority of adaptation problems. It is also possible to install windings on half of each side leg. We will thus have a new division by 2, or 50 volts per turn. This device has two advantages compared to previous techniques, on the one hand, it allows a fine adaptation of the generator from the aperiodic transformer, on the other hand, it avoids an auxiliary adaptation transformer. All the secondary terminals, from 100 to 100 volts or from 50 to 50 volts, are available to the user without having to perform any switching operations.
Enfin, un tel dispositif présente une inductance parasite bien inférieure à celle résultant de l'utilisation des dispositifs de l'art antérieur.Finally, such a device has a parasitic inductance much lower than that resulting from the use of devices of the prior art.
La Figure annexée illustre une réalisation possible du dispositif objet de l'invention.The attached figure illustrates a possible embodiment of the device which is the subject of the invention.
Les deux enroulements a et b sont bobinés sur la jambe centrale d'un circuit magnétique e.The two windings a and b are wound on the central leg of a magnetic circuit e.
Deux enroulements supplémentaires respectivement c et d sont bobinés sur les jambes latérales dudit circuit et connectés entre les prises 2 et 3 et 3 et 4 de l'enroulement secondaire b. Ces deux enroulements sont eux mêmes pourvus d'une prise médiane marquée 2,5 et 3,5.Two additional windings respectively c and d are wound on the lateral legs of said circuit and connected between the sockets 2 and 3 and 3 and 4 of the secondary winding b. These two windings are themselves provided with a median grip marked 2.5 and 3.5.
La tension par spire dans ces deux enroulements latéraux est la moitié de celle induite dans l'enroulement b ou a. Il apparaît donc sur les prises marquées 2,5 et 3,5 une tension intermédiaire entre celle qui existe entre les prises 2 et 3 et 3 et 4.The tension per turn in these two side windings is half that induced in winding b or a. It therefore appears on the sockets marked 2.5 and 3.5 an intermediate voltage between that which exists between sockets 2 and 3 and 3 and 4.
Claims (1)
Les enroulements ainsi constitués sont connectés sur une fraction de l'enroulement secondaire dans le but de diviser la tension apparaissant sur cet enroulement par le facteur voulu.Device intended to allow a precise adaptation of a generator to its load, characterized by the use, on the same transformer, of windings c and d carried out on a fraction of the magnetic circuit e of said transformer in order to generate voltages which are in the section ratio between the total magnetic circuit and the fraction used.
The windings thus formed are connected to a fraction of the secondary winding in order to divide the voltage appearing on this winding by the desired factor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8810108A FR2641661B1 (en) | 1984-12-24 | 1988-07-25 | IMPROVEMENT IN THE APERIODIC GENERATOR |
| FR8810108 | 1988-07-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0352834A2 true EP0352834A2 (en) | 1990-01-31 |
| EP0352834A3 EP0352834A3 (en) | 1992-06-17 |
Family
ID=9368818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19890201665 Withdrawn EP0352834A3 (en) | 1988-07-25 | 1989-06-23 | Aperiodic generator |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP0352834A3 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1477719A (en) * | 1966-03-10 | 1967-04-21 | Ministerul Ind Constructhlor D | Single phase transformer for arc welding |
| US3671847A (en) * | 1970-03-20 | 1972-06-20 | Matsushita Electric Ind Co Ltd | Power supply for driving magnetron |
-
1989
- 1989-06-23 EP EP19890201665 patent/EP0352834A3/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1477719A (en) * | 1966-03-10 | 1967-04-21 | Ministerul Ind Constructhlor D | Single phase transformer for arc welding |
| US3671847A (en) * | 1970-03-20 | 1972-06-20 | Matsushita Electric Ind Co Ltd | Power supply for driving magnetron |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0352834A3 (en) | 1992-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR2605453A1 (en) | HIGH FREQUENCY TRANSFORMER WITH PRINTED CIRCUIT WINDING, PARTICULARLY FOR VERY HIGH VOLTAGE SUPPLY | |
| FR2733095A1 (en) | DEVICE WITH VARIABLE INDUCTANCE AND USE OF SAID DEVICE FOR PRODUCING A CURRENT SOURCE FOR A NULL VOLTAGE SWITCHING CELL | |
| FR2556905A1 (en) | CONTROL CIRCUIT FOR POWER FIELD EFFECT TRANSISTOR | |
| EP0465903B1 (en) | Magnetic control method of energy transfer in a static converter | |
| EP1355409A3 (en) | Power supply device | |
| EP0352834A2 (en) | Aperiodic generator | |
| FR2591831A1 (en) | FAST CONTROL CIRCUIT OF POWER FIELD EFFECT TRANSISTORS | |
| CH132420A (en) | Adjustable voltage drop transformer, particularly applicable to electric welding. | |
| EP0443342A1 (en) | Method for controlling the energy transfer in a static converter, static energy converter for carrying out such method and electric power supply using such converter | |
| FR2641661A2 (en) | Enhancement to the aperiodic generator | |
| EP0471625A1 (en) | Device for obtaining of an adjustable d.c. voltage | |
| FR2752642A1 (en) | TRANSFORMER-RECTIFIER T.H.T. FOR SURFACE MOUNTING | |
| EP0032089B1 (en) | Circuit for supplying an electrical load, especially for discharge lamp | |
| FR2618285A1 (en) | INDUCTIVE COOKING STATION. | |
| FR2607618A1 (en) | IMPROVED SPOT RETURN TRANSFORMER AND CATHODE RAY TUBE DISPLAY DEVICE PROVIDED WITH SUCH A TRANSFORMER | |
| FR2593961A1 (en) | HIGH VOLTAGE TRANSFORMER IN FRACTIONED TECHNOLOGY, ESPECIALLY FOR CATHODE TRICHROME TUBE | |
| DE3831306A1 (en) | Demagnetisation circuit | |
| FR2573588A1 (en) | Circuitry for contactless changeover of transformer tappings | |
| FR2471723A1 (en) | RADIOLOGICAL GENERATOR HAVING A RADIATION PROTECTION ARMOR, SURROUNDING THE X-RAY TUBE | |
| JPS63206161A (en) | High-tension switching power source for radiation detector | |
| EP0433975B1 (en) | Circuit for electric power supply to a load such as a magnetron | |
| JPS629697Y2 (en) | ||
| BE400749A (en) | Compounding and overcurrent limiting device for controlled electrical discharge devices | |
| KR200152722Y1 (en) | Power conversion circuit | |
| BE861724A (en) | ELECTRONIC VOLTAGE REGULATOR |
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: A2 Designated state(s): DE |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): DE |
|
| 17P | Request for examination filed |
Effective date: 19921208 |
|
| 17Q | First examination report despatched |
Effective date: 19931025 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19940308 |