WO1998021812A1 - Method for mounting from modular elements a direct voltage converter capable of different configurations and resulting converter - Google Patents

Method for mounting from modular elements a direct voltage converter capable of different configurations and resulting converter Download PDF

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Publication number
WO1998021812A1
WO1998021812A1 PCT/FR1997/001982 FR9701982W WO9821812A1 WO 1998021812 A1 WO1998021812 A1 WO 1998021812A1 FR 9701982 W FR9701982 W FR 9701982W WO 9821812 A1 WO9821812 A1 WO 9821812A1
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WO
WIPO (PCT)
Prior art keywords
converter
motherboard
elements
output
converters
Prior art date
Application number
PCT/FR1997/001982
Other languages
French (fr)
Inventor
Frédéric BONILLA
Philippe Marchand
Henri Huillet
Pascal Boisrond
Original Assignee
Gaïa Converter
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Gaïa Converter filed Critical Gaïa Converter
Priority to AU50573/98A priority Critical patent/AU5057398A/en
Publication of WO1998021812A1 publication Critical patent/WO1998021812A1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0286—Programmable, customizable or modifiable circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components

Definitions

  • the present invention relates to converters delivering, from a continuous input voltage, one or more continuous output voltages and more particularly to multi-output converters, for example but not exclusively of the "flyback" or "push-” type. sweater ".
  • These types of converters which include a single transformer with several independent outputs obtained from several secondary windings of the transformer, have certain drawbacks including in particular that of requiring, depending on the particular needs of the user, a redefinition of the transformer and an adaptation of food.
  • the present invention specifically aims to significantly reduce these drawbacks by proposing a more flexible and more economical technique to meet different needs.
  • the subject of the invention is a configurable method of mounting a DC voltage converter from modular elements, characterized in that it consists, on the one hand, in constituting each of said elements in the form of '' an elementary DC / DC converter carried by a support provided with connection pins, and, on the other hand, to constitute a motherboard in the form of a printed circuit arranged to receive several of said elements as a function of the configuration of the desired output voltages, said configuration being carried out by the choice and interconnection of the elements with each other and with the motherboard by means of establishment and / or removal of connections, said card -mother also being provided with the various basic functions necessary for the final multi-output converter to be produced.
  • the method of the invention makes it possible to produce on demand, simply, quickly and economically, multi-output converters adapted to specific needs.
  • the method brings great flexibility in the configuration of the multi-output converter thanks to the immediate association and mounting on the same pre-established motherboard, of elementary converters also pre-established, with identical or different characteristics and with the connection mode of the individual outputs of said elementary converters, using connection elements such as "straps" added by welding very quickly and easily or by removing the connection in the printed circuits of the motherboard.
  • the motherboard can receive one or more other elements of the same morphology as those constituting said elementary converters and carrying circuits, also pre-established, performing one or more complementary functions such as management functions of , internal control, etc.
  • the invention also relates to the multi-output converters obtained in accordance with the above method.
  • Other characteristics and advantages will emerge from the following description of modes of implementing the method of the invention, description given by way of example only and with reference to the appended drawings in which:
  • Figure 1 is a diagram illustrating a conventional multi-output DC voltage converter of the "flyback"type
  • Figures 2a and 2b schematically illustrate two modular elements that will be called “brick", each carrying a so-called elementary converter
  • FIGS 3a to 3d schematically illustrate four possible configurations of multi-output converters according to the invention.
  • FIG. 4 schematically shows a multi-output converter according to the invention, with three outputs.
  • the converter consists of a single transformer comprising a primary winding N1 at the terminals of which a given DC input voltage Ve is applied, via a switching switch INT1, and three independent secondary windings N2, N3 and N4 connected to three outputs delivering three different DC voltages V1, V2 and V3.
  • the number of independent outputs can of course vary.
  • the method of the invention makes it possible to produce on demand quickly and without developments, a configurable DC-DC converter (output voltages, output power) multi-outputs.
  • DC-DC converters known as elementary, pre-established, are formed on suitable supports, called bricks, provided with connection pins and a standard format adapted to the technology of printed circuit boards.
  • Such bricks are shown schematically at 1 and 1 'in Figures 2a and 2b respectively. It is for example a rectangular printed circuit board a few centimeters in length. Each plate (1, 1 ') carries the equivalent for example of elements N 1, INT1, N2 and associated of FIG. 1, that is to say a transformer with a single primary winding, a cutting switch, a single secondary winding and its output circuit.
  • the bricks 1, 1 ' are provided with standard connection pins symbolized by the references 2 to 10 in the figures.
  • FIG. 2a relates to an elementary converter with single output (pins 2,3) and FIG. 2b to an elementary converter with double output (pins 6,7,8), each brick ensuring the regulation and the safety of its path.
  • a range of converters of the type of these figures is provided, with a power of ten watts and covering several ranges of input voltages (Ve) and output voltages (Vo).
  • Ve input voltages
  • Vo output voltages
  • FIG. 3a illustrates the mounting of three bricks of the type of brick 1 on a motherboard symbolized at 1 1.
  • the motherboard 1 1 is produced so as to present several locations for receiving a number of bricks 1 identical or not, the pins of the bricks 1 being at distances corresponding to those of the receiving holes provided for this purpose on the motherboard.
  • the multi-output converter of FIG. 3a has a single input connected in parallel to the single input of the three bricks 1 of ten watts, and two outputs, namely an output 1 constituted by the parallel mounting of the outputs of two bricks 1 and an outlet 2 constituted by the simple outlet of the third brick 1.
  • the motherboard is preset with circuits performing complementary functions such as filtering functions 1 2 at the input of the multi-output converter or monitoring and security functions 1 3.
  • FIG. 3b is shown diagrammatically a converter using the same bricks 1 as the converter of FIG. 3a but with a series connection of the outputs of the two bricks 1 on the left so as to have at output 1 a voltage V1 + V2 double that outlet of a brick, with a power of twenty watts.
  • the assemblies of FIGS. 3a, 3b are very easy and quick to carry out by establishing or removing connections between elements of the printed circuit of the motherboard 11, the establishment of the connections being for example carried out by simple "straps "soldered onto the motherboard.
  • the bricks 1 in question are thinner than the single transformer of the traditional converter and, on the other hand, the fact of substituting for example a single primary current, several primary currents in parallel (in the bricks 1) results in a reduction in said Joule losses at equal power, the sum of the losses in the bricks being less than that of the equivalent single transformer.
  • FIG. 3c illustrates an alternative embodiment of the converter of FIG. 3a in which the right brick is replaced by a 1 "brick of the same morphology as the bricks 1 but fulfilling a different function and more particularly a so-called intelligence function, namely for example a management function, an internal control function or a complementary filtering function, or the like.
  • Such bricks 1 "are also pre-established and incorporate for example a programmed logic delivering as output management bits as illustrated in FIG. 3c.
  • the converter shown has a single output but it is obvious that it can be provided with several outputs having the desired range of voltages and power by the appropriate mounting of several bricks 1 possibly of different powers.
  • Figure 3d corresponds to the converter of Figure 3b in which the brick 1 on the right has been replaced by the brick 1 "of Figure 3c.
  • Figure 4 is a block diagram of the functionalities of a converter according to the invention, consisting of three identical bricks 1 of ten watts mounted on a motherboard 1 1 '. The connections to be established are symbolized in 1 4, 1 5, 1 6, 1 7, 1 8 and 1 9 (by welded straps for example) or to delete on the motherboard 1 1 to mount the outputs of the bricks 1 in parallel or in series in order to obtain the desired configuration of the outputs (voltage and power) of the converter formed by the assembly.
  • serial connections are made by establishing the connections 1 5 and 1 8, which makes it possible to add the voltages available on channels 1, 2 and 3.
  • the motherboard 11 may advantageously include functions 20 for complementary regulation of the outputs of the converter, for example for the purposes of remote regulation or adjustment of the output voltages of the different channels 1, 2 and 3.
  • channel 1 has a separate regulation with taking measurement information from the secondary, which ensures high precision of the output voltage (of the order of 1% over the entire temperature range, for the entire input voltage range).
  • Channel 1 can be coupled to channels 2 and 3, with regard to this type of regulation, by establishing connections 1 4, 1 6, 1 7 and 1 9, so as to obtain an output having a power of 1 0 , 20 or 30 watts, regulated at 1%.
  • the functional block 1 3 located on the motherboard 1 1 ′ combines thermal protection, short-circuit protection and management of the on / off bit, this bit enabling the converter to stop when 'it is low.
  • the motherboard assembly (1 1, 1 1 ') and bricks d, 1', 1 ") is then molded in a housing with a morphology similar to that of conventional multi-output converters.
  • the invention is obviously not limited to the embodiments shown and described above, but on the contrary covers all the variants thereof, in particular as regards the characteristics (in particular input, output voltages, power) of each brick (1, 1 ') acting as an elementary DC-DC converter, as well as the functionalities of the brick (s) (1 ") for management, in particular of supply.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

The invention concerns a direct voltage converter. The object of the invention is a method for mounting from modular elements a direct voltage converter capable of different configurations. characterised in that it consists in constituting each of said elements in the form of a direct /direct elementary converter carried by a medium (1, 1') provided with connecting pins (2 to 10) and in constituting a motherboard in the form of a printed circuit (11) arranged for receiving several of said elements (1, 1') depending on the configuration of the desired voltage output, said configuration being produced by the choice and the interconnection of the elements (1, 1') between them and with the motherboard (11) by establishing and/or suppressing connections (14 to 19). said motherboard being further provided with different basic functions (12, 13) required by the final multiple output converter to be produced. The invention is applicable to direct voltage converters in particular with multiple output.

Description

PROCEDE DE MONTAGE CONFIGURABLE D'UN CONVERTISSEUR DE TENSION CONTINUE A PARTIR D'ELEMENTS MODULAIRES ET CONVERTISSEUR AINSI OBTENU CONFIGURABLE MOUNTING METHOD FOR A CONTINUOUS VOLTAGE CONVERTER FROM MODULAR ELEMENTS AND CONVERTER THUS OBTAINED
La présente invention a trait aux convertisseurs délivrant, à partir d'une tension d'entrée continue, une ou plusieurs tensions de sortie continues et plus particulièrement aux convertisseurs multi-sorties, par exemple mais non exclusivement du type "flyback" ou "push-pull" . Ces types de convertisseurs qui comportent un transformateur unique à plusieurs sorties indépendantes obtenues à partir de plusieurs enroulements secondaires du transformateur, présentent certains inconvénients dont en particulier celui de nécessiter, en fonction des besoins particuliers de l'utilisateur, une redéfinition du transformateur et une adaptation de l'alimentation.The present invention relates to converters delivering, from a continuous input voltage, one or more continuous output voltages and more particularly to multi-output converters, for example but not exclusively of the "flyback" or "push-" type. sweater ". These types of converters which include a single transformer with several independent outputs obtained from several secondary windings of the transformer, have certain drawbacks including in particular that of requiring, depending on the particular needs of the user, a redefinition of the transformer and an adaptation of food.
Ceci implique des délais de réalisation et des coûts de développements qui grèvent l'adaptation de ces types de convertisseurs à la demande.This implies lead times and development costs which make it difficult to adapt these types of converters to demand.
La présente invention vise précisément à réduire significativement ces inconvénients en proposant une technique plus souple et plus économique pour répondre aux différents besoins.The present invention specifically aims to significantly reduce these drawbacks by proposing a more flexible and more economical technique to meet different needs.
A cet effet, l'invention a pour objet un procédé de montage configurable d'un convertisseur de tension continue à partir d'éléments modulaires, caractérisé en ce qu'il consiste, d'une part, à constituer chacun desdits éléments sous forme d'un convertisseur continu/continu élémentaire porté par un support pourvu de broches de connexion, et, d'autre part, à constituer une carte-mère sous forme d'un circuit imprimé agencé pour recevoir plusieurs desdits éléments en fonction de la configuration des tensions de sortie désirée, ladite configuration étant réalisée par le choix et l'interconnexion des éléments entre eux et avec la carte-mère à l'aide d'établissement et/ou suppression de liaisons, ladite carte-mère étant en outre munie des différentes fonctions de bases nécessaires au convertisseur multi-sorties final à réaliser.To this end, the subject of the invention is a configurable method of mounting a DC voltage converter from modular elements, characterized in that it consists, on the one hand, in constituting each of said elements in the form of '' an elementary DC / DC converter carried by a support provided with connection pins, and, on the other hand, to constitute a motherboard in the form of a printed circuit arranged to receive several of said elements as a function of the configuration of the desired output voltages, said configuration being carried out by the choice and interconnection of the elements with each other and with the motherboard by means of establishment and / or removal of connections, said card -mother also being provided with the various basic functions necessary for the final multi-output converter to be produced.
Le procédé de l'invention permet de réaliser à la demande, de manière simple, rapide et économique, des convertisseurs multi-sorties adaptés aux besoins spécifiques.The method of the invention makes it possible to produce on demand, simply, quickly and economically, multi-output converters adapted to specific needs.
Le procédé apporte en effet une grande souplesse dans la configuration du convertisseur multi-sorties grâce à l'association et au montage immédiats sur une même carte-mère préétablie, de convertisseurs élémentaires également préétablis, de caractéristiques identiques ou différentes et au mode de connexion des sorties individuelles desdits convertisseurs élémentaires, à l'aide d'éléments de liaison tels que des "straps" rapportées par soudage de manière très facile et rapide ou de suppression de liaison dans les circuits imprimés de la carte-mère.The method brings great flexibility in the configuration of the multi-output converter thanks to the immediate association and mounting on the same pre-established motherboard, of elementary converters also pre-established, with identical or different characteristics and with the connection mode of the individual outputs of said elementary converters, using connection elements such as "straps" added by welding very quickly and easily or by removing the connection in the printed circuits of the motherboard.
Avantageusement et selon une autre caractéristique du procédé, la carte-mère peut recevoir un ou plusieurs autres éléments de même morphologie que ceux constituant lesdits convertisseurs élémentaires et portant des circuits, également préétablis, réalisant une ou plusieurs fonctions complémentaires telles que des fonctions de gestion d'alimentation, de contrôle interne, etc..Advantageously and according to another characteristic of the method, the motherboard can receive one or more other elements of the same morphology as those constituting said elementary converters and carrying circuits, also pre-established, performing one or more complementary functions such as management functions of , internal control, etc.
L'invention a également pour objet les convertisseurs multi-sorties obtenus conformément au procédé ci-dessus. D'autres caractéristiques et avantages ressortiront de la description qui va suivre de modes de mise en oeuvre du procédé de l'invention, description donnée à titre d'exemple uniquement et en regard des dessins annexés sur lesquels :The invention also relates to the multi-output converters obtained in accordance with the above method. Other characteristics and advantages will emerge from the following description of modes of implementing the method of the invention, description given by way of example only and with reference to the appended drawings in which:
Figure 1 est un schéma illustrant un convertisseur de tension continue multi-sorties conventionnel de type "flyback" ; Figures 2a et 2b illustrent schématiquement deux éléments modulaires que l'on appellera "brique", portant chacun un convertisseur dit élémentaire ;Figure 1 is a diagram illustrating a conventional multi-output DC voltage converter of the "flyback"type; Figures 2a and 2b schematically illustrate two modular elements that will be called "brick", each carrying a so-called elementary converter;
Figures 3a à 3d illustrent schématiquement quatre configurations possibles de convertisseurs multi-sorties conformes à l'invention ; etFigures 3a to 3d schematically illustrate four possible configurations of multi-output converters according to the invention; and
Figure 4 représente schématiquement un convertisseur multi-sorties selon l'invention, à trois sorties. Sur la figure 1 on a illustré le principe de base d'un convertisseur "flyback" conventionnel à trois sorties indépendantes. Le convertisseur est constitué d'un transformateur unique comprenant un enroulement primaire N1 aux bornes duquel est appliquée une tension continue d'entrée Ve donnée, via un interrupteur INT1 de découpage, et trois enroulements secondaires indépendants N2,N3 et N4 reliés à trois sorties délivrant trois tensions continues différentes V1 ,V2 et V3. Le nombre de sorties indépendantes peut bien entendu varier.Figure 4 schematically shows a multi-output converter according to the invention, with three outputs. In FIG. 1, the basic principle of a conventional "flyback" converter with three independent outputs has been illustrated. The converter consists of a single transformer comprising a primary winding N1 at the terminals of which a given DC input voltage Ve is applied, via a switching switch INT1, and three independent secondary windings N2, N3 and N4 connected to three outputs delivering three different DC voltages V1, V2 and V3. The number of independent outputs can of course vary.
Avec ce type de convertisseur l'obtention de configurations de tensions de sorties différentes ou particulières (nombre de sorties, caractéristiques des tensions et puissances désirées) impose pour chaque cas une redéfinition complète du transformateur unique et une adaptation en conséquence de l'alimentation. Il en résulte inévitablement des délais d'exécution et des frais de développements.With this type of converter, obtaining different or specific output voltage configurations (number of outputs, characteristics of the voltages and powers desired) requires for each case a complete redefinition of the single transformer and an adaptation accordingly of the power supply. This inevitably results in lead times and development costs.
Le procédé de l'invention permet de réaliser à la demande de façon rapide et sans développements, un convertisseur continu-continu configurable (tensions de sortie, puissance de sortie) multi-sorties. A cet effet, des convertisseurs continu-continu dit élémentaires, préétablis, sont constitués sur des supports appropriés, dénommés briques, pourvus de broches de connexion et d'un format standard adapté à la technologie des cartes à circuits imprimés.The method of the invention makes it possible to produce on demand quickly and without developments, a configurable DC-DC converter (output voltages, output power) multi-outputs. To this end, DC-DC converters known as elementary, pre-established, are formed on suitable supports, called bricks, provided with connection pins and a standard format adapted to the technology of printed circuit boards.
De telles briques sont représentées schématiquement en 1 et 1 ' sur les figures 2a et 2b respectivement. Il s'agit par exemple d'une plaquette de circuit imprimé rectangulaire de quelques centimètres de longueur. Chaque plaquette ( 1 , 1 ') porte l'équivalent par exemple des éléments N 1 ,INT1 ,N2 et associés de la figure 1 , c'est-à-dire un transformateur avec un enroulement primaire unique, un interrupteur de découpage, un enroulement secondaire unique et son circuit de sortie. Les briques 1 , 1 ' sont munies de broches de connexion standard symbolisées par les références 2 à 10 sur les figures.Such bricks are shown schematically at 1 and 1 'in Figures 2a and 2b respectively. It is for example a rectangular printed circuit board a few centimeters in length. Each plate (1, 1 ') carries the equivalent for example of elements N 1, INT1, N2 and associated of FIG. 1, that is to say a transformer with a single primary winding, a cutting switch, a single secondary winding and its output circuit. The bricks 1, 1 'are provided with standard connection pins symbolized by the references 2 to 10 in the figures.
La figure 2a se rapporte à un convertisseur élémentaire à sortie simple (broches 2,3) et la figure 2b à un convertisseur élémentaire à sortie double (broches 6,7,8), chaque brique assurant la régulation et la sécurité de sa voie. Conformément à l'invention, il est prévu une gamme de convertisseurs du type de ces figures, d'une puissance de dix watts et couvrant plusieurs gammes de tensions d'entrées (Ve) et de tensions de sorties (Vo) . Bien entendu on peut sur le même principe réaliser des briques à convertisseur élémentaire d'une puissance supérieure, ou inférieure, à dix watts. La figure 3a illustre le montage de trois briques du type de la brique 1 sur une carte-mère symbolisée en 1 1 .FIG. 2a relates to an elementary converter with single output (pins 2,3) and FIG. 2b to an elementary converter with double output (pins 6,7,8), each brick ensuring the regulation and the safety of its path. According to the invention, a range of converters of the type of these figures is provided, with a power of ten watts and covering several ranges of input voltages (Ve) and output voltages (Vo). Of course, it is possible, on the same principle, to make bricks with an elementary converter of a power greater, or less, than ten watts. FIG. 3a illustrates the mounting of three bricks of the type of brick 1 on a motherboard symbolized at 1 1.
Celle-ci est réalisée dans la technologie conventionnelle des circuits imprimés.This is carried out in conventional printed circuit technology.
D'une manière générale, la carte-mère 1 1 est réalisée de façon à présenter plusieurs emplacements de réception d'un certain nombre de briques 1 identiques ou non, les broches des briques 1 étant à des écartements correspondant à ceux des trous récepteurs ménagés à cet effet sur la carte- mère.In general, the motherboard 1 1 is produced so as to present several locations for receiving a number of bricks 1 identical or not, the pins of the bricks 1 being at distances corresponding to those of the receiving holes provided for this purpose on the motherboard.
Le convertisseur multi-sorties de la figure 3a comporte une entrée unique reliée en parallèle à l'entrée unique des trois briques 1 de dix watts, et deux sorties, à savoir une sortie 1 constituée par le montage en parallèle des sorties de deux briques 1 et une sortie 2 constituée par la simple sortie de la troisième brique 1 .The multi-output converter of FIG. 3a has a single input connected in parallel to the single input of the three bricks 1 of ten watts, and two outputs, namely an output 1 constituted by the parallel mounting of the outputs of two bricks 1 and an outlet 2 constituted by the simple outlet of the third brick 1.
En outre, conformément à l'invention, la carte-mère est préétablie avec des circuits réalisant des fonctions complémentaires telles que des fonctions de filtrage 1 2 à l'entrée du convertisseur multi-sorties ou des fonctions 1 3 de surveillance et sécurité. Ainsi, le convertisseur dispose sur la sortie 1 d'une puissance de vingt watts sous une tension (V1 = V2) égale à celle de l'une des briques 1 et sur la sortie 2 d'une puissance de dix watts sous une tension identique à celle de la sortie 1 , ou différente. Sur la figure 3b est schématisé un convertisseur utilisant les mêmes briques 1 que le convertisseur de la figure 3a mais avec un montage en série des sorties des deux briques 1 de gauche en sorte d'avoir en sortie 1 une tension V1 + V2 double de celle de sortie d'une brique, avec une puissance de vingt watts. Les montages des figures 3a, 3b sont très faciles et rapides à réaliser par l'établissement ou la suppression de liaisons entre éléments du circuit imprimé de la carte-mère 1 1 , l'établissement des liaisons étant par exemple effectué par des simples "straps" soudés sur la carte-mère.In addition, in accordance with the invention, the motherboard is preset with circuits performing complementary functions such as filtering functions 1 2 at the input of the multi-output converter or monitoring and security functions 1 3. Thus, the converter has on output 1 a power of twenty watts under a voltage (V1 = V2) equal to that of one of the bricks 1 and on output 2 a power of ten watts under an identical voltage to that of output 1, or different. In FIG. 3b is shown diagrammatically a converter using the same bricks 1 as the converter of FIG. 3a but with a series connection of the outputs of the two bricks 1 on the left so as to have at output 1 a voltage V1 + V2 double that outlet of a brick, with a power of twenty watts. The assemblies of FIGS. 3a, 3b are very easy and quick to carry out by establishing or removing connections between elements of the printed circuit of the motherboard 11, the establishment of the connections being for example carried out by simple "straps "soldered onto the motherboard.
Outre la facilité et le faible coût du montage des briques en vue d'obtenir la configuration finale du convertisseur multi-sorties désiré, il est à noter deux autres avantages résultant de la technique objet de l'invention, à savoir l'encombrement réduit du convertisseur multi-sorties par rapport à un convertisseur conventionnel de même configuration, ainsi que la réduction des pertes par effet Joule. En effet, d'une part, les briques 1 en question sont de moindre épaisseur que le transformateur unique du convertisseur traditionnel et, d'autre part, le fait de substituer par exemple à un courant primaire unique, plusieurs courants primaires en parallèle (dans les briques 1 ) entraîne pour conséquence, à puissance égale, une diminution desdites pertes par effet Joule, la somme des pertes dans les briques étant inférieure à celles du transformateur unique équivalent.In addition to the ease and low cost of mounting the bricks in order to obtain the final configuration of the desired multi-output converter, it should be noted two other advantages resulting from the technique which is the subject of the invention, namely the reduced size of the multi-output converter compared to a conventional converter of the same configuration, as well as the reduction of losses by Joule effect. Indeed, on the one hand, the bricks 1 in question are thinner than the single transformer of the traditional converter and, on the other hand, the fact of substituting for example a single primary current, several primary currents in parallel (in the bricks 1) results in a reduction in said Joule losses at equal power, the sum of the losses in the bricks being less than that of the equivalent single transformer.
La figure 3c illustre une variante de réalisation du convertisseur de la figure 3a dans laquelle la brique de droite est remplacée par une brique 1 " de même morphologie que les briques 1 mais remplissant une fonction différente et plus particulièrement une fonction dite d'intelligence à savoir par exemple une fonction de gestion, une fonction de contrôle interne ou une fonction de filtrage complémentaire, ou autre. De telles briques 1 " sont également préétablies et incorporent par exemple une logique programmée délivrant en sortie des bits de gestion comme illustré sur la figure 3c.FIG. 3c illustrates an alternative embodiment of the converter of FIG. 3a in which the right brick is replaced by a 1 "brick of the same morphology as the bricks 1 but fulfilling a different function and more particularly a so-called intelligence function, namely for example a management function, an internal control function or a complementary filtering function, or the like. Such bricks 1 "are also pre-established and incorporate for example a programmed logic delivering as output management bits as illustrated in FIG. 3c.
Le convertisseur représenté comporte une seule sortie mais il est évident qu'il peut être pourvu de plusieurs sorties présentant la gamme désirée de tensions et puissance par le montage approprié de plusieurs briques 1 éventuellement de puissances différentes.The converter shown has a single output but it is obvious that it can be provided with several outputs having the desired range of voltages and power by the appropriate mounting of several bricks 1 possibly of different powers.
La figure 3d correspond au convertisseur de la figure 3b dans lequel la brique 1 de droite a été remplacée par la brique 1 " de la figure 3c. La figure 4 est un synoptique des fonctionnalités d'un convertisseur selon l'invention, constitué de trois briques 1 identiques de dix watts montées sur une carte-mère 1 1 ' . On a symbolisé respectivement en 1 4, 1 5, 1 6, 1 7, 1 8 et 1 9 les liaisons à établir (par des straps soudés par exemple) ou à supprimer sur la carte-mère 1 1 pour monter les sorties des briques 1 en parallèle ou en série en vue d'obtenir la configuration désirée des sorties (tension et puissance) du convertisseur formé par l'ensemble.Figure 3d corresponds to the converter of Figure 3b in which the brick 1 on the right has been replaced by the brick 1 "of Figure 3c. Figure 4 is a block diagram of the functionalities of a converter according to the invention, consisting of three identical bricks 1 of ten watts mounted on a motherboard 1 1 '. The connections to be established are symbolized in 1 4, 1 5, 1 6, 1 7, 1 8 and 1 9 (by welded straps for example) or to delete on the motherboard 1 1 to mount the outputs of the bricks 1 in parallel or in series in order to obtain the desired configuration of the outputs (voltage and power) of the converter formed by the assembly.
Les mises en parallèle des sorties des briques se font à partir de la voieBricks outputs are paralleled from the track
1 . C'est ainsi que l'on peut lui connecter en parallèle la voie 2 en établissant les liaisons (soudant des straps) 1 4 et 1 6. On peut de plus lui connecter en parallèle la voie 3 en établissant les liaisons 1 7 et 1 9, ce qui permet d'avoir sur la voie 1 une puissance de 10,20 ou 30 watts.1. This is how we can connect channel 2 to it in parallel by establishing connections (welding straps) 1 4 and 1 6. We can also connect channel 3 to it in parallel by establishing connections 1 7 and 1 9, which makes it possible to have on channel 1 a power of 10.20 or 30 watts.
Les mises en série se font en établissant les liaisons 1 5 et 1 8, ce qui permet d'additionner les tensions disponibles sur les voies 1 ,2 et 3.The serial connections are made by establishing the connections 1 5 and 1 8, which makes it possible to add the voltages available on channels 1, 2 and 3.
En variante, la carte-mère 1 1 peut avantageusement comporter des fonctions 20 de régulation complémentaire des sorties du convertisseur, par exemple à des fins de télérégulation ou d'ajustage des tensions de sortie des différentes voies 1 ,2 et 3.As a variant, the motherboard 11 may advantageously include functions 20 for complementary regulation of the outputs of the converter, for example for the purposes of remote regulation or adjustment of the output voltages of the different channels 1, 2 and 3.
Ces fonctions 20 sont également préétablies sur la carte-mère 1 1 .These functions 20 are also preset on the motherboard 11.
C'est ainsi que sur la figure 4, la voie 1 dispose d'une régulation séparée avec prise de l'information de mesure sur le secondaire, ce qui assure une grande précision de la tension de sortie (de l'ordre de 1 % sur toute la gamme de température, pour toute la gamme de tension d'entrée). La voie 1 peut être couplée aux voies 2 et 3, pour ce qui concerne ce type de régulation, grâce à l'établissement des liaisons 1 4, 1 6, 1 7 et 1 9, en sorte d'obtenir une sortie disposant d'une puissance de 1 0,20 ou 30 watts, régulée à 1 %.Thus in FIG. 4, channel 1 has a separate regulation with taking measurement information from the secondary, which ensures high precision of the output voltage (of the order of 1% over the entire temperature range, for the entire input voltage range). Channel 1 can be coupled to channels 2 and 3, with regard to this type of regulation, by establishing connections 1 4, 1 6, 1 7 and 1 9, so as to obtain an output having a power of 1 0 , 20 or 30 watts, regulated at 1%.
Enfin, le bloc fonctionnel 1 3 implanté sur la carte-mère 1 1 ' regroupe la protection thermique, la protection court-circuit et la gestion du bit de marche/arrêt (on/off), ce bit permettant l'arrêt du convertisseur lorsqu'il est à l'état bas.Finally, the functional block 1 3 located on the motherboard 1 1 ′ combines thermal protection, short-circuit protection and management of the on / off bit, this bit enabling the converter to stop when 'it is low.
L'ensemble carte-mère (1 1 , 1 1 ') et briques d , 1 ', 1 ") est ensuite moulé dans un boîtier de morphologie similaire à celle des convertisseurs multi-sorties conventionnels.The motherboard assembly (1 1, 1 1 ') and bricks d, 1', 1 ") is then molded in a housing with a morphology similar to that of conventional multi-output converters.
L'invention n'est évidemment pas limitée aux modes de mise en oeuvre représentés et décrits ci-dessus mais en couvre au contraire toutes les variantes, notamment en ce qui concerne les caractéristiques (en particulier tensions d'entrée, de sortie, puissance) de chaque brique (1 , 1 ') faisant office de convertisseur continu-continu élémentaire, ainsi que les fonctionalités de la ou les briques (1 ") de gestion notamment d'alimentation. The invention is obviously not limited to the embodiments shown and described above, but on the contrary covers all the variants thereof, in particular as regards the characteristics (in particular input, output voltages, power) of each brick (1, 1 ') acting as an elementary DC-DC converter, as well as the functionalities of the brick (s) (1 ") for management, in particular of supply.

Claims

R EV E N D I CAT I O N S R EV ENDI CAT IONS
1. Procédé de montage configurable d'un convertisseur de tension continue à partir d'éléments modulaires, caractérisé en ce qu'il consiste, d'une part, à constituer chacun desdits éléments sous forme d'un convertisseur continu/continu élémentaire porté par un support (1,1') pourvu de broches de connexion (2 à 10), et, d'autre part, à constituer une carte-mère sous forme d'un circuit imprimé (11) agencé pour recevoir plusieurs desdits éléments (1,1') en fonction de la configuration des tensions de sortie désirée, ladite configuration étant réalisée par le choix et l'interconnexion des éléments (1,1 ') entre eux et avec la carte-mère (11) à l'aide d'établissement et/ou suppression de liaisons (14 à 19), ladite carte-mère étant en outre munie des différentes fonctions de bases (12,13) nécessaires au convertisseur multi-sorties final à réaliser.1. A configurable mounting method for a DC voltage converter from modular elements, characterized in that it consists, on the one hand, in constituting each of said elements in the form of an elementary DC / DC converter carried by a support (1,1 ') provided with connection pins (2 to 10), and, on the other hand, to constitute a motherboard in the form of a printed circuit (11) arranged to receive several of said elements (1 , 1 ') depending on the configuration of the desired output voltages, said configuration being achieved by the choice and interconnection of the elements (1,1') with each other and with the motherboard (11) using establishment and / or removal of connections (14 to 19), said motherboard being further provided with the various basic functions (12, 13) necessary for the final multi-output converter to be produced.
2. Procédé selon la revendication 1, caractérisé en ce que lesdits convertisseurs élémentaires (1,1 ') ont des caractéristiques de tension d'entrée, de tension de sortie et de puissance, identiques ou différentes.2. Method according to claim 1, characterized in that said elementary converters (1,1 ') have characteristics of input voltage, output voltage and power, identical or different.
3. Procédé suivant la revendication 1 ou 2, caractérisé en ce que lesdits établissements ou suppressions de liaisons sont effectués à l'aide d'éléments de liaison, tels que des straps (14 à 19), rapportés par soudage, ou non, en des endroits appropriés du circuit imprimé de la carte-mère (11,11'). 3. Method according to claim 1 or 2, characterized in that said establishment or removal of connections are carried out using connection elements, such as straps (14 to 19), added by welding, or not, by appropriate locations on the motherboard circuit board (11,11 ').
4. Procédé suivant l'une des revendications 1 à 3, caractérisé en ce que l'on munit la carte-mère (11,11') d'un ou plusieurs autres éléments (1") de même morphologie que ceux (1,1') constituant lesdits convertisseurs élémentaires et portant des circuits, également préétablis, réalisant une ou plusieurs fonctions complémentaires telles que des fonctions de gestion d'alimentation, de contrôle interne.4. Method according to one of claims 1 to 3, characterized in that one provides the motherboard (11,11 ') with one or more other elements (1 ") of the same morphology as those (1, 1 ') constituting said elementary converters and carrying circuits, also pre-established, performing one or more complementary functions such as power management functions, internal control.
5. Procédé suivant l'une des revendications 1 à 3, caractérisé en ce que l'on munit en outre la carte-mère (11,11') de fonctions (20) de régulation des tensions de sortie du convertisseur. 5. Method according to one of claims 1 to 3, characterized in that one further provides the motherboard (11,11 ') with functions (20) for regulating the output voltages of the converter.
6. Convertisseur de tension continue multi-sorties obtenu conformément au procédé de l'une quelconque des revendications 1 à 5.6. Multi-output DC voltage converter obtained in accordance with the method of any one of claims 1 to 5.
7. Convertisseur selon la revendication 6, caractérisé en ce que l'ensemble carte-mère (11,11') - briques (1,1 ',1") est moulé dans un boîtier de morphologie similaire à celle des convertisseurs multi-sorties conventionnels. 7. Converter according to claim 6, characterized in that the motherboard assembly (11.11 ′) - bricks (1.1 ′, 1 ″) is molded in a housing of morphology similar to that of multi-output converters conventional.
PCT/FR1997/001982 1996-11-08 1997-11-05 Method for mounting from modular elements a direct voltage converter capable of different configurations and resulting converter WO1998021812A1 (en)

Priority Applications (1)

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AU50573/98A AU5057398A (en) 1996-11-08 1997-11-05 Method for mounting from modular elements a direct voltage converter capable of different configurations and resulting converter

Applications Claiming Priority (2)

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FR96/13993 1996-11-08
FR9613993A FR2755803B1 (en) 1996-11-08 1996-11-08 CONFIGURABLE MOUNTING METHOD FOR A CONTINUOUS VOLTAGE CONVERTER FROM MODULAR ELEMENTS AND CONVERTER THUS OBTAINED

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FR (1) FR2755803B1 (en)
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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0593258A2 (en) * 1992-10-12 1994-04-20 Nemic-Lambda Kabushiki Kaisha Power supply

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0593258A2 (en) * 1992-10-12 1994-04-20 Nemic-Lambda Kabushiki Kaisha Power supply

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MALINIAK D: "MODULAR SWITCHING SUPPLY USES HIGH-DENSITY CONVERTERS", ELECTRONIC DESIGN, vol. 43, no. 26, 16 December 1995 (1995-12-16), pages 128, 130, XP000551904 *
MURAKAMI N ET AL: "A HIGHLY EFFICIENT, LOW-PROFILE 300-W POWER PACK FOR TELECOMMUNICATIONS SYSTEMS", PROCEEDINGS OF THE ANNUAL APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC), ORLANDO, FEB. 13 - 17, 1994, vol. 2, 13 February 1994 (1994-02-13), INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, pages 786 - 792, XP000467393 *

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FR2755803A1 (en) 1998-05-15
FR2755803B1 (en) 1999-02-05

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