EP3724899A1 - Common-mode/differential-mode throttle for an electrically driveable motor vehicle - Google Patents
Common-mode/differential-mode throttle for an electrically driveable motor vehicleInfo
- Publication number
- EP3724899A1 EP3724899A1 EP18807994.1A EP18807994A EP3724899A1 EP 3724899 A1 EP3724899 A1 EP 3724899A1 EP 18807994 A EP18807994 A EP 18807994A EP 3724899 A1 EP3724899 A1 EP 3724899A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mode
- leg
- throttle
- common
- core
- 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- Withdrawn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
- 230000006698 induction Effects 0.000 claims abstract description 38
- 238000004804 winding Methods 0.000 claims abstract description 22
- 239000003990 capacitor Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
- H01F3/12—Magnetic shunt paths
-
- 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
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
- H02M1/123—Suppression of common mode voltage or current
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
- H02M1/126—Arrangements for reducing harmonics from ac input or output using passive filters
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
Definitions
- the invention relates to a common-mode push-pull throttle for an electrically operable motor vehicle, having a core having at least two parallel and spaced leg having a common mode induction coil and a push-pull induction coil, wherein the two induction coils to each one of the two legs are wound.
- the invention relates to a transformer with a
- Circuit arrangement which is arranged between a high-voltage side and a low-voltage side of the transformer, wherein on at least one of the sides of the transformer, a common mode push-pull throttle is arranged or connected.
- patent specification EP 2 814 151 A2 discloses an inverter having an integrated common-mode differential choke having a common-mode induction coil and a push-pull induction coil. The two induction coils are wound on a common throttle core.
- a single-phase transformer translates the primary voltage (high voltage) to the secondary side (Low voltage) and ensures the necessary electrical isolation between the two voltage networks, among other things to ensure the protection of persons.
- the secondary-side AC voltage is then using
- Rectifier diodes or rectified by means of a synchronous rectifier.
- a smoothing choke and a smoothing capacitor In order to reduce the ripple of the output voltage, it is also known to use a smoothing choke and a smoothing capacitor.
- the transformer only transmits AC voltage
- the high-voltage DC voltage must first be converted into an AC voltage or a time-varying voltage. This task usually take high-voltage switch, in particular
- Half line switch They are controlled in such a way that during the
- Transformer is applied and induces a secondary voltage. After the control phase, the switches are switched off and the voltage at the
- the transformer operated with an AC voltage.
- the transformer can also be operated with a pulsating DC voltage. In this case, make sure that it is demagnetized and saturation of the magnetic material does not occur.
- the switches are very quickly brought from the locked to the conductive state and vice versa. The fast switching minimizes the switching losses of the switches, the speed of the voltage and the voltage
- Electromagnetic compatibility can make these disturbances so far be reduced so that the device meets all normative requirements.
- the conducted disturbances are divided into common mode and differential mode noise.
- Common mode induction coil reduces common mode noise and a
- DMC Differential mode inductance
- push-pull induction coil reduces differential mode noise.
- EMF straightening filters require both types of inductors, since both types of disturbances occur together.
- both inductors are often separated as two physical ones,
- Inductors are precisely adjustable, wherein the induction coils are arranged on the same throttle core and act without affecting the electrical or magnetic properties of the common mode induction coil and the push-pull induction coil.
- the space is reduced and thus the throttle and in particular the throttle having the transformer formed compact.
- the production costs are lowered and the
- Inductors also improve the E MV properties of the choke and thus the circuit having the choke. According to the invention it is provided that the distance between the facing each other
- Winding sections corresponds to each other at least one of the induction coils on both sides of the respective leg.
- the throttle according to the invention thus has a certain distance between the two coils to each other at their mutually facing winding sections. This distance corresponds to the distance between the opposite
- the core has a central leg which is arranged between the two already mentioned legs.
- the three legs are preferably in a plane next to each other, wherein the third leg in particular aligned parallel to the other two legs / arranged.
- the third leg thus protrudes at least in sections between the two induction coils.
- the three legs have the same width
- Induction coils reached each other. While it has hitherto been customary for the middle limb to be at least twice as wide as the two outer limbs in the case of comparable throttles, in the present case the middle limb is narrower, namely just as wide as the outer limbs, which results in the advantageous setting of the inductances results.
- the three legs are connected together at one end by a first trunk leg. This results in an E-shaped core part with an advantageous magnetic flux.
- the outer legs are connected to one another at a different end by a second trunk leg, which in particular forms an I-shaped core part.
- a free space is provided between the two trunk legs, which serves to receive the mutually facing effective sections of the induction coils.
- the third limb or the middle limb protrudes into this free space, for example extends to the second trunk leg, so that the free space is divided by the middle leg into two free spaces.
- the core is a total of the second stem legs in particular El-shaped.
- the core is preferably U-shaped, EE-shaped or U-shaped
- the middle leg ends at a distance from the second stem leg, so that an air gap exists between the middle leg and the second stem leg.
- the size of the air gap determines the size of the inductors.
- the middle leg extends to the second stem leg, in another extreme case, the leg length of the middle leg is equal to zero, so that the E-shaped core becomes a U-shaped core.
- the inductances reach their maximum value when the air gap through the middle leg is completely bridged up to the second stem leg, ie the size of the air gap is equal to zero.
- the inductances are given their minimum value when the air gap between the middle limb and the second trunk limb is maximum.
- the leakage inductance depends in the latter case mainly on the geometric arrangement of the windings to each other.
- the inverter according to the invention with the features of claim 8 is characterized by the inventive common mode push-pull throttle. This results in the already mentioned advantages. Further advantages and preferred features and combinations of features emerge in particular from the previously described and from the claims.
- Figure 1 is a circuit diagram of an integrated common mode push-pull choke and Figures 2A and B an embodiment of the common mode choke.
- FIG. 1 shows, in a simplified representation, a circuit diagram of a common mode push-pull throttle 1, which is implemented in one component.
- the inductor 1 comprises inductors LI, L2 and LDM, the inductors LI and LDM being connected in parallel with the inductor L2.
- High-voltage network associated capacitor CX1 drops a first voltage and through two more capacitors CY, between which one
- the throttle is connected in particular to a circuit of a transformer not shown here.
- the coils LI and L2 and LDM form a common mode choke CMC and the coils LI and LDM form a push-pull choke DMC.
- FIGS. 2A and 2B show an embodiment of the throttle 1 in a simplified representation, FIG. 2A showing dimensions and FIG. 2B magnetic stray fields of the throttle 1.
- FIG. 1 Shown here is the structure of the reactor 1 in planar technology. This can also be applied to wire-wound inductors.
- an El-core shape of a core 3 of the reactor 1 is shown.
- the core 3 thus has an E-shaped core part 4 and an I-shaped core part 5.
- the E-shaped core part 4 has three legs 6, 7 and 8, which are aligned parallel and spaced from each other and emanate from a trunk leg 9, so that the E-shape results.
- the I-shaped core part 5 is opposite to the E-shaped core part 4, so that the I-shaped core part 5 is parallel to the stem leg 4 and even forms a second stem leg 10 which rests on the outer legs 6 and 8, so that There is a physical contact between the legs 8, 9 and the trunk leg 10 and the I-shaped core part 5.
- the lying between the legs 6 and 8 middle leg 7 is formed shortened, so that there is an air gap /.
- the air gap / is smaller than the length IF of the outer legs 6, 8 according to the present embodiment.
- the coil LI is wound as a push-pull induction coil and around the leg 8, the coil L2 as a common-mode induction coil.
- the legs 6, 7 and 8 each have the same width bs, so that the distance of the mutually facing winding sections of the coils LI and L2 at their mutually facing sides in the E-core part 9 is the same size as the
- each induction winding LI, L2 has its own stray field L1S or L2S, which does not flow through the other induction winding in each case.
- the main field H is generated by the main inductance Lh and the stray fields from the respective leakage inductances L a .
- a coupling k between the windings of the induction coils LI and L2 is set.
- the inductances LDM and LCM also change.
- the center leg 7 completely disappears and the previous I-core part 4 becomes a U-core part or a U-shaped core.
- the leakage inductance depends in this case mainly on the geometric arrangement of the windings or the induction coils LI, L2 to each other.
- the value of Lh changes by about 20% of the minimum value over the entire change in length of the Lh
- the throttle 1 can also be realized with two E cores or two U cores or a U-core combination.
- the turns of the induction coils LI and L2 are not wound as usual around the central leg 7 of the core, they are each wound around the outer legs 6, 8. This increases the stray inductance L a of the common mode choke.
- L a LDM and the
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Filters And Equalizers (AREA)
- Coils Or Transformers For Communication (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017222664.1A DE102017222664A1 (en) | 2017-12-13 | 2017-12-13 | Common-mode push-pull throttle for an electrically operable motor vehicle |
PCT/EP2018/082384 WO2019115207A1 (en) | 2017-12-13 | 2018-11-23 | Common-mode/differential-mode throttle for an electrically driveable motor vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3724899A1 true EP3724899A1 (en) | 2020-10-21 |
Family
ID=64457014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18807994.1A Withdrawn EP3724899A1 (en) | 2017-12-13 | 2018-11-23 | Common-mode/differential-mode throttle for an electrically driveable motor vehicle |
Country Status (6)
Country | Link |
---|---|
US (1) | US20210082609A1 (en) |
EP (1) | EP3724899A1 (en) |
KR (1) | KR20200097314A (en) |
CN (1) | CN111433867A (en) |
DE (1) | DE102017222664A1 (en) |
WO (1) | WO2019115207A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019122243A1 (en) * | 2019-08-19 | 2021-02-25 | Schmidbauer Transformatoren und Gerätebau GmbH | Power conversion system |
RU204292U1 (en) * | 2021-02-24 | 2021-05-19 | Ханан Григорьевич Офенгейм | THROTTLE-TRANSFORMER |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63176009A (en) * | 1987-01-16 | 1988-07-20 | Stanley Electric Co Ltd | Filter device for preventing disturbing wave |
US6049258A (en) * | 1996-04-30 | 2000-04-11 | 3Com Corporation | Isolation and signal filter transformer |
JP2008005171A (en) * | 2006-06-21 | 2008-01-10 | Matsushita Electric Works Ltd | Line filter with base |
US20140125430A1 (en) * | 2012-11-08 | 2014-05-08 | Mitsubishi Electric Corporation | Noise filter |
US20140176289A1 (en) * | 2012-12-21 | 2014-06-26 | Samsung Electro-Mechanics Co., Ltd. | Electromagnetic interference filter and method of manufacturing the same |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5555494A (en) * | 1993-09-13 | 1996-09-10 | Morris; George Q. | Magnetically integrated full wave DC to DC converter |
US7321283B2 (en) * | 2004-08-19 | 2008-01-22 | Coldwatt, Inc. | Vertical winding structures for planar magnetic switched-mode power converters |
US7468649B2 (en) * | 2007-03-14 | 2008-12-23 | Flextronics International Usa, Inc. | Isolated power converter |
US8040704B2 (en) * | 2007-06-30 | 2011-10-18 | Cuks, Llc | Integrated magnetics switching converter with zero inductor and output ripple currents and lossless switching |
WO2011099976A1 (en) * | 2010-02-12 | 2011-08-18 | Cramer Coil & Transformer Co. | Integrated common mode, differential mode audio filter inductor |
EP2565883A1 (en) * | 2011-09-02 | 2013-03-06 | University College Cork | A split winding transformer |
EP2782105B1 (en) * | 2013-03-20 | 2018-03-21 | Schneider Toshiba Inverter Europe SAS | Differential mode and common mode choke |
JP5790700B2 (en) * | 2013-04-15 | 2015-10-07 | 株式会社デンソー | Filter parts |
DE102013211121A1 (en) | 2013-06-14 | 2014-12-18 | Robert Bosch Gmbh | inverter |
DE102014206469A1 (en) * | 2014-04-03 | 2015-10-08 | SUMIDA Components & Modules GmbH | THROTTLE AND THROTTLE CORE |
CN105932896B (en) * | 2016-05-31 | 2018-06-19 | 江苏固德威电源科技股份有限公司 | A kind of photovoltaic combining inverter and its suppressing method inhibited with common mode current |
CN206312690U (en) * | 2016-12-30 | 2017-07-07 | 上海意兰可电力电子设备有限公司 | The built-in common mode reactor of three-phase reactor |
CN206471215U (en) * | 2017-03-01 | 2017-09-05 | 东莞市潮荣电子制品有限公司 | A kind of common mode inductance with elastic insulated plate |
-
2017
- 2017-12-13 DE DE102017222664.1A patent/DE102017222664A1/en not_active Withdrawn
-
2018
- 2018-11-23 KR KR1020207019875A patent/KR20200097314A/en not_active Application Discontinuation
- 2018-11-23 US US16/772,370 patent/US20210082609A1/en not_active Abandoned
- 2018-11-23 WO PCT/EP2018/082384 patent/WO2019115207A1/en unknown
- 2018-11-23 EP EP18807994.1A patent/EP3724899A1/en not_active Withdrawn
- 2018-11-23 CN CN201880080285.0A patent/CN111433867A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63176009A (en) * | 1987-01-16 | 1988-07-20 | Stanley Electric Co Ltd | Filter device for preventing disturbing wave |
US6049258A (en) * | 1996-04-30 | 2000-04-11 | 3Com Corporation | Isolation and signal filter transformer |
JP2008005171A (en) * | 2006-06-21 | 2008-01-10 | Matsushita Electric Works Ltd | Line filter with base |
US20140125430A1 (en) * | 2012-11-08 | 2014-05-08 | Mitsubishi Electric Corporation | Noise filter |
US20140176289A1 (en) * | 2012-12-21 | 2014-06-26 | Samsung Electro-Mechanics Co., Ltd. | Electromagnetic interference filter and method of manufacturing the same |
Non-Patent Citations (5)
Title |
---|
LEE FRED: "Application of GaN Devices for 1 kW Server Power Supply with Integrated Magnetics", CPSS TRANSACTIONS ON POWER ELECTRONICS AND APPLICATIONS, 1 December 2016 (2016-12-01), XP055823529, Retrieved from the Internet <URL:https://ieeexplore.ieee.org/ielx7/7873541/7911088/07911092.pdf?tp=&arnumber=7911092&isnumber=7911088&ref=aHR0cHM6Ly9pZWVleHBsb3JlLmllZWUub3JnL2RvY3VtZW50Lzc5MTEwOTI/c2lnbm91dD1zdWNjZXNz> [retrieved on 20210712] * |
LI BIN ET AL: "A symmetrical resonant converter and PCB transformer structure for common mode noise reduction", 2017 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE), IEEE, 1 October 2017 (2017-10-01), pages 5362 - 5368, XP033247582, DOI: 10.1109/ECCE.2017.8096898 * |
See also references of WO2019115207A1 * |
VANUKURU VENKATA NARAYANA RAO ET AL: "High Density Solenoidal Series Pair Symmetric Inductors and Transformers", IEEE TRANSACTIONS ON ELECTRON DEVICES, IEEE, USA, vol. 61, no. 7, 1 July 2014 (2014-07-01), pages 2503 - 2508, XP011551300, ISSN: 0018-9383, [retrieved on 20140617], DOI: 10.1109/TED.2014.2323357 * |
YANG YUCHEN ET AL: "Common mode EMI reduction technique for interleaved MHz critical mode PFC converter with coupled inductor", 2015 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE), IEEE, 20 September 2015 (2015-09-20), pages 233 - 239, XP032800582, DOI: 10.1109/ECCE.2015.7309693 * |
Also Published As
Publication number | Publication date |
---|---|
KR20200097314A (en) | 2020-08-18 |
US20210082609A1 (en) | 2021-03-18 |
WO2019115207A1 (en) | 2019-06-20 |
CN111433867A (en) | 2020-07-17 |
DE102017222664A1 (en) | 2019-06-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102006014608B4 (en) | Filter circuit and power supply unit | |
DE69635104T2 (en) | Resonance converter with controlled choke coil | |
DE112016005167T5 (en) | MAGNETIC COMPONENT ARRANGEMENT AND ENERGY CONVERSION DEVICE USING THE MAGNETIC COMPONENT ARRANGEMENT | |
EP0799517A1 (en) | Device for the contactless inductive transmission of electric energy | |
DE60114346T2 (en) | Switching power supply circuit | |
DE102019135066A1 (en) | INTEGRATED MAGNETIC COMPONENT AND DC VOLTAGE CONVERTER | |
EP3729477A1 (en) | Transformer core and transformer | |
DE102016201258A1 (en) | Electric voltage converter with several storage chokes | |
DE10225409A1 (en) | Current-compensated choke and circuit arrangement with the current-compensated choke | |
EP3724899A1 (en) | Common-mode/differential-mode throttle for an electrically driveable motor vehicle | |
EP0265938B1 (en) | DC-DC converter | |
EP2817873B1 (en) | Multi-phase converter | |
DE2556119A1 (en) | STABILIZATION ARRANGEMENT | |
EP2945257A1 (en) | Symmetrising electric voltages to electric capacitors connected in series | |
DE102019219662A1 (en) | DC voltage converter | |
EP2865087B1 (en) | Parallel inverters with inductor | |
DE102014117551B4 (en) | Multiple choke and power converter with a multiple choke | |
EP2863403A1 (en) | Transformer | |
DE102008035529B4 (en) | Device for controlling a three-phase motor, in particular an asynchronous motor | |
AT511846A4 (en) | COMBINED LOCKING FLOW CONVERTER WITH ONLY ONE DIODE | |
EP3295464A1 (en) | Converter device and coil arrangement for a voltage regulator | |
WO2023180018A1 (en) | Llc dc/dc converter with current-measuring transformer integrated into the inductance | |
EP0711450B1 (en) | Planar transducer | |
WO2022033635A1 (en) | Resonance transformer having an additionally coupled inductor for an obc | |
DE202021003205U1 (en) | Device for power factor correction of electronic equipment at an AC voltage connection |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
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 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20200713 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20220211 |
|
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: 20220823 |