WO2016018151A1 - Unité électronique avec transformateur d'alimentation - Google Patents

Unité électronique avec transformateur d'alimentation Download PDF

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Publication number
WO2016018151A1
WO2016018151A1 PCT/NL2015/050553 NL2015050553W WO2016018151A1 WO 2016018151 A1 WO2016018151 A1 WO 2016018151A1 NL 2015050553 W NL2015050553 W NL 2015050553W WO 2016018151 A1 WO2016018151 A1 WO 2016018151A1
Authority
WO
WIPO (PCT)
Prior art keywords
electronic unit
carrier
stack
winding
transformer
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.)
Ceased
Application number
PCT/NL2015/050553
Other languages
English (en)
Inventor
Augustinus Wilhelmus Maria Bertels
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compact Electro-Magnetic Technology And Eco-Logical Enterprises BV
Original Assignee
Compact Electro-Magnetic Technology And Eco-Logical Enterprises BV
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.)
Filing date
Publication date
Application filed by Compact Electro-Magnetic Technology And Eco-Logical Enterprises BV filed Critical Compact Electro-Magnetic Technology And Eco-Logical Enterprises BV
Publication of WO2016018151A1 publication Critical patent/WO2016018151A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H01F17/0006—Printed inductances
    • H01F17/0013—Printed inductances with stacked layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H01F27/022—Encapsulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/255—Magnetic cores made from particles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2804—Printed windings
    • H01F27/2809—Printed windings on stacked layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2804—Printed windings
    • H01F27/2814—Printed windings with only part of the coil or of the winding in the printed circuit board, e.g. the remaining coil or winding sections can be made of wires or sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2847—Sheets; Strips
    • H01F27/2852—Construction of conductive connections, of leads
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/02—Adaptations of transformers or inductances for specific applications or functions for non-linear operation
    • H01F38/023—Adaptations of transformers or inductances for specific applications or functions for non-linear operation of inductances
    • H01F2038/026—Adaptations of transformers or inductances for specific applications or functions for non-linear operation of inductances non-linear inductive arrangements for converters, e.g. with additional windings

Definitions

  • the invention relates to an electronic unit, comprising a carrier with at least one electronic circuit, from which carrier protrude a number of terminals which are connected internally to the or each circuit.
  • the invention provides an electronic unit of the type stated in the preamble which has the feature according to the invention that
  • An important example hereof is an embodiment in which at least one elongate transformer is located in the area of the edge zones of the carrier.
  • each element comprises an electrically insulating flat carrier
  • the carrier carries at least one electrically conductive loop-shaped track
  • the loop-shaped tracks each form a turn and are arranged around the central axis in the stack;
  • the end zones are connected to each other in electrically conductive manner such that the turns form one winding in at least groupwise manner and that the electric currents conducted through the turns during operation of the device generate summating magnetic fields in the zone enclosed by the turns;
  • the carriers are congruent and each have a form such that they can be rotated from a starting position through an angle a around the central axis to a rotated position in which they take up the same space as in the starting position;
  • adjacent elements with tracks which together form a winding are disposed rotated through an angle relative to each other such that only one end zone of the track of the one element is in register position relative to only one end zone of the track of the adjacent element, and these mutually registered end zones are mutually connected by an electrical conductor extending transversely of the elements;
  • the elements are connected non-releasably to each other, and
  • the device has the special feature that each track is located some distance from the peripheral edge of the carrier;
  • the end zones of the track are located close to the peripheral edge of the carrier in the edge zone thereof;
  • electrical conductors situated on the outer side of the stack and extending over the full height thereof are electrical conductors which each connect two mutually registered end zones of the tracks of adjacent elements electrically to each other.
  • the device can advantageously have the special feature that each carrier is round.
  • each carrier has the form of a regular polygon.
  • the polygon comprises a number of sides which equal 3607a.
  • the device preferably has the special feature that a ferromagnetic core is located in the space of the stack enclosed by the turn. A greatly increased self-inductance is hereby achieved for a coil and achieved for a transformer is that the windings have a substantially stronger mutual electromagnetic coupling.
  • each flat carrier comprises a plastic substrate
  • the feiTomagnetic zone comprises a magnetic material in powder form which is mixed through the substrate material and is thus embedded therein in substantially homogenous distribution.
  • Such an embodiment can particularly be mass-produced in very simple manner on large industrial scale with a limited number of production steps.
  • a device of the latter type preferably has the feature that the end zones of the core are coupled at least magnetically to each other by a ferromagnetic yoke extending outside the stack such that the core and the yoke together form a closed magnetic circuit. Stray fields are hereby prevented and the effectiveness of the operation of the ferromagnetic core is substantially enhanced.
  • a further improvement is achieved with an embodiment in which the yoke comprises two yoke parts extending on either side of the stack.
  • the yoke comprises two ferromagnetic plates at least magnetically coupled to the end zones of the core and a ferromagnetic jacket at least magnetically coupled to these plates;
  • a passage for allowing through electrical conductors connected to both terminals of the or each winding.
  • the device has the special feature that
  • the feiTomagnetic yoke comprises a plastic substrate into which magnetic material in powder form is mixed and is thus embedded therein in substantially homogenous distribution; and the yoke is manufactured by injection moulding.
  • the device has the feature that respective electrically conductive pins are connected to both terminals of the or each winding, which pins extend outside the peripheral surface of the device.
  • the device can have the special feature that the pins are located in a zone forming part of a flat part of the peripheral surface of the device extending in longitudinal direction, and the pins extend perpendicularly of this flat part.
  • a device designed as transformer for instance power supply transformer, can have the feature that the tracks of the elements of the stack together form at least two windings, wherein a primar y winding is configured to receive a relatively high alternating voltage and the or each other secondary winding is configured to generate a relatively low alternating voltage; and
  • the device can have the special feature that the tracks of the or each secondary winding have a larger cross-section than the tracks of the primary winding.
  • the generation of heat per volume unit in the tracks of the primary winding or in the or each secondary winding can be substantially the same during operation, whereby temperature differences can be reduced to negligible proportions.
  • the device still more preferably has the special feature that the relatively high value of the frequency amounts to a minimum of 1 MHZ.
  • the device can have the special feature that thermally conductive protrusions are situated on the outer side of the device, for instance pins, wires or fins, which at least partially relinquish heat generated in the device to the surrounding area.
  • Such protrusions can be embodied in per se known manner in a suitable thermally conductive material, for instance a metal such as copper, aluminium, silver.
  • the device can be embodied such that the protrusions consist together or in groups of a plastic substrate through which thermally conductive material in powder form, for instance aluminium powder, copper powder, silver powder, carbon powder, diamond powder, is mixed and thus embedded therein in substantially homogenous distribution; and the protrusions are manufactured together or in groups by injection moulding or extrusion.
  • the device has the special feature that each flat carrier consists of film material with a thickness of a maximum of about 100 ⁇ .
  • PI polyimide
  • PEI polyetherimide
  • Polyimide and polyetherimide are materials with an extremely good temperature loadability. Melting of the materials and degeneration due to heating occur only at extremely high temperatures, i.e. above 400°C.
  • the device according to the invention is highly suitable for miniaturization. It is thus possible to envisage an embodiment in which the maximum linear dimension of the device, for instance the diameter of a cylindrical device, transversely of the central axis amounts to 10 mm, preferably 8 mm, still more preferably 6 mm.
  • figure 1 is a perspective, partially exploded view of a stack of electrical elements in the preliminary phase of the manufacture of a coil based thereon,
  • figure 2 shows the finished stack according to figure 1 in which the end terminals of the coil have been formed and protrude outward;
  • figure 3 is a perspective view corresponding to figure 2 of a coil in which a ferromagnetic core is present in the space enclosed by the copper tracks;
  • figure 4 is a top view of a square film-like flat carrier with a copper track
  • figure 5 is a view corresponding to figure 4 of a flat film-like carrier having the form of a regular octagon;
  • figure 6 is a top view corresponding to figures 4 and 5 of an embodiment in which the carrier has the form of a regular dodecagon;
  • figure 7 is a top view corresponding to figures 4, 5 and 6 of a carrier with a circular form
  • figure 8 is a cut-away, partially exploded perspective view of a transformer with a ferromagnetic core and a ferromagnetic yoke
  • figure 9 is an exploded view of a variant of the transformer according to figure 8.
  • figure 10 is an exploded view of a variant of the transformer according to figure 9 which is provided with cooling fins;
  • figure 11 shows an electronic unit with a carrier, an electronic processor present thereon and a number of micro-transformers
  • figure 12 is a partially cut-away perspective view on enlarged scale of the elongate transformer designated XII in figure 11 ;
  • figure 13 is a perspective view corresponding to figure 12 of an alternative transformer provided with vertically disposed cooling fins;
  • figure 14 shows a cross-section through the transformer according to figure 13 at the stage where the aluminium injection-moulded parts carrying the cooling fins are placed and fixed in close-fitting manner around the transformer;
  • figure 15 is a perspective, partially exploded view corresponding to figure 1 of a stack of multiple, not yet mutually connected and cured carriers with loop-shaped copper tracks, wherein the end zones of the copper tracks of adjacent carriers are rotated in each case through an angle a, the angle a corresponding to the angular distance between the end zones of the copper tracks, such that only one end zone of each copper track is placed in register with only one end zone of an adjacent copper track;
  • figure 16 is a schematic view of the manner in which a number of stacks of electrical elements are cut out of the stack according to figure 15 by means of a laser;
  • figure 17 is a schematic perspective view of a subsequent process wherein longitudinal angularly equidistant (a) grooves are arranged by means of a laser in the peripheral surface of the cylinder in the areas of the end zones of the copper tracks;
  • figure 18 is a view corresponding to figure 17 of the subsequent phase in which, by stepwise rotation through in each case the angle a and diagonal winding, copper wires with a solder sheath are placed in the grooves obtained according to figure 17 over the whole effective surface of the stack;
  • figure 19 shows a stack of electrical elements provided with a complete set of connecting wires, which stack is heated in a schematically designated oven or magnetron device such that the carrier-film material cures and the end zones, which are provided with a layer of soldering material, are connected at the position of the longitudinal grooves in electrically conductive manner by soldering to the wires provided with a layer of soldering material;
  • figure 20 is a schematic view of the finished and cured stack according to figure 19, wherein a coaxial cylindrical through-hole is arranged by means of a laser for the purpose of arranging a ferromagnetic core and removing the central zones around the central axis of the connecting wires;
  • figure 21 is an exploded view of a complete transformer with ferromagnetic core and yoke and external connecting pins on the basis of the stack of electrical elements according to figure 20;
  • figure 22 shows a vertical section on enlarged scale of the connection between the end zones of a winding and the associated external electrical connecting pins, in combination with closing of the ferromagnetic yoke;
  • figure 23 shows a round, flat, membrane -like plastic carrier with a substantially circular loop-shaped copper track and a ferromagnetic zone which is present in the central zone thereof and in which ferromagnetic powder material is incorporated in fine distribution in the plastic substrate of the flat carrier in order to form a continuous ferromagnetic core inside the space, enclosed by the turns of a winding, of a stack of electrical elements; and
  • figure 24 is a perspective view of a stack of electrical elements prior to curing of the plastic at the stage where a number of longitudinal through-holes are arranged in the plastic substrate material by means of a schematically designated laser for the purpose of accelerating evaporation of solvent from the starting plastic material.
  • Figure 1 shows a perspective view of a partial stack 1 of electrical elements 2 to be described below.
  • each electrical element 2 which in this embodiment has a circular form, comprises a film-like plastic carrier, in particular of PI or PEI, on which a loop-shaped electrically conductive track 3 of copper is present.
  • the end zones of track 3, which are designated 4, 5, extend as far as the peripheral edge of plastic carrier 6.
  • the end zones 4, 5 have a mutual angular distance relative to central axis 8 (see figure 1) of a value a. Particular reference is made in this respect to figure 1.
  • the adjacent elements 2 of the complete stack 9 are placed such that each end zone 4, 5 of an element is registered with only one end zone of the adjacent element 2.
  • the registered zones of the complete stack which are all designated with the reference numeral 10, thus acquire the linear helical form shown clearly in, among others, figure 1.
  • end zones 4, 5 are provided beforehand with soldering material, for instance an eutectic mixture of lead and tin.
  • soldering material for instance an eutectic mixture of lead and tin.
  • end zone 4 of each upper-lying element is connected to each end zone 5 of each element lying thereunder. The mutually offset relation is thus obtained with the drawn helical form as result.
  • Figure 17 shows the manner in which the longitudinal grooves are arranged in the peripheral surface of stack 9 using laser 11. The angular distance between these grooves amounts to a, as will be apparent from the foregoing description.
  • copper wires Positioned in grooves 12 in a manner to be described below with reference to figures 18, 19, 20 are copper wires which are provided with a cover layer of soldering material, in particular an eutectic mixture of lead and tin.
  • Figure 2 shows the situation in which wires 13 are positioned in the grooves.
  • heating of stack 9 takes place with the thus placed wires 13.
  • Curing of the plastic material of carriers 6 hereby takes place, while due to the presence of the wires the registered zones are also individually connected to each other by realizing a sufficiently high temperature, i.e. a temperature above the melting temperature of the soldering material, without the danger of any form of further undesired contact between such zones.
  • Coil 15 is of the type which does not have a ferromagnetic core. Only the plastic of carriers
  • the carriers 6 can be embodied in their central zone, i.e. in the zone within the conductive tracks 3, such that ferromagnetic material in powder form is embedded in the plastic of the usually film-like carriers 3.
  • a non-releasable unit is thus formed which is provided with a ferromagnetic core.
  • Figure 4 shows by way of example another form of a carrier, i.e. a square shape. Such a shape could be used as element for a stack in which end zones 4 are all connected to each other and end zones 5 are all connected to each other.
  • the turns, consisting of tracks 3, of such a coil are not in series in such an embodiment but connected in parallel.
  • Such a coil can also be manufactured by means of the process drawn in and described with reference to the foregoing figures.
  • Figure 5 shows a valiant with a flat film-like plastic carrier in the form of a regular octagon.
  • Figure 6 shows an embodiment in which the film-like plastic carrier, for instance of PE or PEI, takes the form of a regular dodecagon.
  • end surface 26 of the jacket and end surface 27 of the core and the lower surface of cover 24 can be realized by making use of a very thin adhesive layer.
  • Transformer 28 according to figure 9 comprises primary winding 18 and two secondary windings which are jointly designated with reference numeral 19.
  • the terminals of the primary winding are designated with reference numeral 128, while the terminals of the three secondary windings are jointly designated with reference numeral 29.
  • Figure 9 shows that the two connecting wires of the primary winding, which are designated with 128, extend upward while the six wires forming the terminals of the three secondary windings extend downward.
  • a ferromagnetic core with yoke is constructed symmetrically and via a thin electrically insulating jacket 30 can be arranged from both sides over the ends of stack 9 and subsequently fixed with for instance a small quantity of adhesive.
  • the two ferromagnetic yoke parts 31, 32 together define on their outer side a flat surface 33, 34 perpendicularly of which the connecting pins 35 of the primary winding extend at the one axial end zone, while connecting pins 36 of the three secondary windings extend perpendicularly thereof on the other axial side.
  • transformer 28 can be easily positioned on a carrier of an electronic unit, after which pins 35, 36 arc fixed, for instance with a welding or soldering process, to electrically conductive tracks.
  • the monohthically formed aluminium cylinder 42 and cooling fins 43 can advantageously be formed together with the discrete ferromagnetic element 44 by co-extrusion.
  • Ferromagnetic element 44 can be embodied as a for instance thermoplastic plastic which functions as substrate in which ferromagnetic material in powder form is embedded.
  • Figure 11 shows an electronic unit 45 with a carrier, for instance of the printed circuit board type, on which is situated an electronic processor 47 which is powered with low direct voltages. Power supply transformers are also provided for this purpose on the carrier.
  • the eight vertically disposed, substantially cylindrical transformers are all designated 48, while two elongate horizontal transformers are designated respectively 49 and 50.
  • a match 51 is placed next to electronic unit 45. This has the particular purpose of indicating the small dimensions of transformers 48, 49, 50.
  • transformers can after all be manufactured very small and, due to the presence of the cooling fins in co-action with a forced airflow as is usual in computer and in particular server environments, bring about a highly effective cooling.
  • Figure 12 shows transformer 50, which for the sake of completeness is designated with the reference XII in figure 11 , on larger scale and partially cut-away.
  • transformer 50 Situated on the underside of transformer 50 is a flat placing surface with which in the mounted situation as according to figure 11 the transformer is in stable contact with the upper surface of the plate -like, for instance plastic carrier 46. Pins 35, 36 protrude perpendicularly from this surface 38 and in the mounted state extend through through-holes in carrier 46. Situated on the underside thereof are conductive tracks, wherein connecting pins 35, 36 are connected for electrical conduction.
  • Figure 13 shows a variant in which an elongate transformer 52 is provided with a divided aluminium sleeve 53 which is assembled following mounting and both parts of which are provided with vertical cooling fins 54.
  • Each sleeve part with cooling fins can be embodied as aluminium injection-moulded part.
  • Figure 14 shows that the aluminium sleeve parts 53 are placed via an electrically insulating jacket 55 over stack 9.
  • This electrically insulating jacket is for instance of a suitable plastic with a small thickness such that its heat resistance is negligible.
  • An electrically insulating plate 58, 59 is located on the underside and on the upper side of stack 57.
  • Figure 16 shows on enlarged scale the manner in which a number of stacks of electrical elements, for instance of the type according to figure 7, are cut out of the stack 57 according to figure 15 by means of a schematically designated laser 60.
  • the cutting contours of the laser are designated with reference numeral 61. Attention is drawn to the fact that the cutting contour of the laser is circular and extends through end zones 4, 5 of copper track 3. This ensures that the end zones, which are provided with a layer of soldering material, always extend all the way to the outer surface or the peripheral surface of the associated stack as according to for instance figure 1.
  • Figure 17 has already been discussed in the foregoing. With a stepwise rotation of stack 9 as according to arrow 62 the stack is rotated successively further through an angle a each time such that laser 11 is able to arrange the grooves 12 in the jacket zone of cylindrical stack 9.
  • Figure 18 shows the subsequent phase in which, once again by successive stepwise rotation as according to arrow 62, each time through an angle a, and by diagonal winding, the wires are positioned in the indicated desired manner.
  • Figure 20 is a schematic view of the finished and cured stack according to figure 19, wherein a coaxial cylindrical through-hole 64 is arranged by means of laser 11 for the purpose of arranging a ferromagnetic core and removing the connecting wires at the position of the two central zones around the central axis.
  • Figure 21 is an exploded view of a transformer 65 with a basic transformer consisting of a unit of windings obtained following the operation with a laser 11 as according to figure 20, a ferromagnetic core 67, a ferromagnetic jacket 68, a ferromagnetic bottom plate 69 and a ferromagnetic cover 70.
  • An electrically insulating film-like sleeve 71 extends between the outer surface of unit 66, where the voltage-carrying wires 13 lie unprotected, and jacket 68. This insulates the wires 13 from the inner surface of ferromagnetic jacket 68.
  • an insulating plate 72 which has through-holes for passage of the connecting wires to connecting pins 35 for the primary winding.
  • a functionally corresponding insulating plate 73 with a passage for allowing through the connections of the secondary windings to connecting pins 36 for these secondary windings.
  • Figure 22 shows a vertical section on enlarged scale of the connection between the end zones of a winding and the associated external connecting pins 35, which connecting pins 35 extend through a filler block 76 of electrically insulating material received in a recess in ferromagnetic cover 70.
  • Ferromagnetic cover 70 with filler block 76 and coupling surfaces 75 on the underside of connecting pins 35 takes place via the electrically insulating plate 72, which can for instance be embodied as film. Attention is drawn to the fact that, with a view to good positioning and a reliable electrically conductive connection between pins 35 and end zones 74, the coupling surfaces are provided with shallow grooves lying in the direction of the roughly radially extending upper parts of wires 13.
  • Figure 23 shows a round, flat, membrane -like plastic carrier 78 with a substantially circular, loop-shaped copper track 3 and a ferromagnetic zone 77 present in the central zone thereof, in which zone ferromagnetic powder material is incorporated in finely distributed manner in the plastic substrate of the flat carrier for the purpose of forming a continuous ferromagnetic core inside the space, enclosed by the turns or electrically conductive tracks 3 of a winding, of a stack of electrical elements 79 of the type according to figure 23.
  • Figure 24 shows a stack of electrical elements as according to figure 2 prior to the curing of the plastic at the stage where by means of a schematically designated laser 80 a number of longitudinal through-holes 81 are ananged in the as yet not cured plastic substiate material for the purpose of enhancing rapid evaporation of solvent from the starting plastic material. It will be apparent that this variant is only worthwhile in the case where solvent has been added to the substrate material.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

L'invention concerne une unité électronique comprenant un support portant au moins un circuit électronique. Un nombre de bornes fait saillie à partir du saillie, les bornes étant connectées en interne au circuit ou à chaque circuit. Le support porte au moins un transformateur qui convertit une tension d'alimentation, en particulier une tension secteur de 230 VAC par exemple, à une tension inférieure, de 1 VAC par exemple. Le support porte également des moyens de redressement qui convertissent la tension convertie à la baisse en au moins une tension continue nécessaire au fonctionnement du ou de chaque circuit.
PCT/NL2015/050553 2014-07-30 2015-07-28 Unité électronique avec transformateur d'alimentation Ceased WO2016018151A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2013279A NL2013279B1 (nl) 2014-07-30 2014-07-30 Elektronische eenheid met voedingstransformator.
NL2013279 2014-07-30

Publications (1)

Publication Number Publication Date
WO2016018151A1 true WO2016018151A1 (fr) 2016-02-04

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WO (1) WO2016018151A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115605766A (zh) * 2020-04-23 2023-01-13 施耐德电气工业公司（Fr） 用于制造电气部件的方法及电气部件

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5973948A (en) * 1996-06-19 1999-10-26 Advanced Mobile Solutions, Inc. Universal linear power supply
US20070176722A1 (en) * 2006-01-30 2007-08-02 Nemic-Lambda Ltd. High-current electrical coil, and transformer construction including same
US20110075449A1 (en) * 2008-03-31 2011-03-31 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Compact Power Transformer Components, Devices, Systems and Methods

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5973948A (en) * 1996-06-19 1999-10-26 Advanced Mobile Solutions, Inc. Universal linear power supply
US20070176722A1 (en) * 2006-01-30 2007-08-02 Nemic-Lambda Ltd. High-current electrical coil, and transformer construction including same
US20110075449A1 (en) * 2008-03-31 2011-03-31 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Compact Power Transformer Components, Devices, Systems and Methods

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115605766A (zh) * 2020-04-23 2023-01-13 施耐德电气工业公司（Fr） 用于制造电气部件的方法及电气部件

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