US20090040743A1 - Filter apparatus and frequency coverter to which the filter apparatus is connected - Google Patents

Filter apparatus and frequency coverter to which the filter apparatus is connected Download PDF

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Publication number
US20090040743A1
US20090040743A1 US12/249,412 US24941208A US2009040743A1 US 20090040743 A1 US20090040743 A1 US 20090040743A1 US 24941208 A US24941208 A US 24941208A US 2009040743 A1 US2009040743 A1 US 2009040743A1
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United States
Prior art keywords
frequency converter
filter
filter apparatus
housing
electromagnetic noise
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Abandoned
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US12/249,412
Inventor
Masayuki Hirota
Satoshi Ibori
Naoki Takata
Masahiro Hiraga
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Individual
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Individual
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Priority to US12/249,412 priority Critical patent/US20090040743A1/en
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    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
    • 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
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
    • H05K7/1427—Housings
    • H05K7/1432—Housings specially adapted for power drive units or power converters
    • H05K7/14327—Housings specially adapted for power drive units or power converters having supplementary functional units, e.g. data transfer modules or displays or user interfaces

Definitions

  • the present invention relates to a technique for reducing noises of a frequency converter supplying electric power to, for example, a motor.
  • EN55011 Class A, Class B
  • EN61800 EN55011
  • the specifications and the like are described for specifying limit values of electromagnetic noises according to apparatuses used and classes of use environments to prevent influences on other electrical apparatuses.
  • Techniques regarding measures against noises as described above include, for example, the technique disclosed in Patent Document 1.
  • a filter apparatus reducing electromagnetic noises and the like is generally provided.
  • a mounting space is required accordingly, and the drawing of wiring and the like for connecting the filter apparatus should be considered.
  • the object of the present invention is to provide a filter apparatus reducing electromagnetic noises and the like for a frequency converter supplying electric power to, for example, a motor, and to realize a downsizing and the like of the frequency converter or filter apparatus while connecting the filter apparatus to the frequency converter.
  • a filter apparatus reducing electromagnetic noises and the like is provided near a wiring drawing portion of a main circuit terminal board of a frequency converter.
  • the filter apparatus is connected to the wiring drawing portion of the main circuit terminal board.
  • Part of a housing of the frequency converter and part of a filter housing are fitted to each other to fix the filter housing on the frequency converter.
  • Characteristics of the filter apparatus may be defined as not having influences such as electromagnetic noises on other electric apparatuses based on performance characteristics for which the CE mark can be labeled, EN55011 and the specification of EN61800, for example.
  • EN61800 and EN55011 (Class A, Class B) included in the specification of EN 61800 are generally well known in the frequency converter and the like.
  • the filter apparatus may be configured to have characteristics of filter apparatus based on the specification of EN61800 and EN55011 (Class A, Class B) included in the specification of EN61800.
  • a product having good characteristics can be provided as to reduction of noises of the frequency converter.
  • a frequency converter having a reduced size while achieving a reduction in noises can be provided.
  • FIG. 1 shows an example of a frequency converter having an electromagnetic noise filter mounted thereon
  • FIG. 2 shows another example of the frequency converter having the electromagnetic noise filter mounted thereon
  • FIG. 3 shows Example of the present invention (plan view);
  • FIG. 4 shows Example of a waterproof case of a digital operator
  • FIG. 5 shows Example of the electromagnetic noise filter (sectional view).
  • FIG. 6 shows Example of the electromagnetic noise filter (another sectional view).
  • FIG. 7 shows an example of another method for mounting the electromagnetic noise filter.
  • An electromagnetic noise filter as a filter apparatus reducing electromagnetic noises in Example according to the present invention, or a frequency converter to which the filter apparatus is connected will be described in detail below using Example shown in figures.
  • FIG. 1 shows an implementation of the electromagnetic noise filter as Example according to the present invention.
  • reference numeral 1 denotes a frequency converter housing
  • reference numeral 2 denotes an electromagnetic noise filter case
  • reference numeral 3 denotes a terminal board cover
  • reference numeral 4 denotes a wiring drawing plate
  • reference numeral 5 denotes an earth bar for frequency converters.
  • the frequency converter housing 1 is provided with a groove 6 for mounting the wiring drawing plate 4
  • the wiring drawing plate 4 is provided with a raised portion 7 .
  • the electromagnetic noise filter case 2 is also provided with the raised portion 7 . If no filter is required, the electromagnetic noise filter case 2 can be removed to fit the wiring drawing plate 4 directly into the groove 6 provided in a case of the frequency converter 1 .
  • Attachment/detachment can be eased by providing a raised portion 22 on the side face of the electromagnetic noise filter case 2 and providing a recessed portion 21 on the side face of the frequency converter housing 1 as shown in FIG. 7 .
  • the recessed portion 21 is a hole-like portion provided on the side face of the frequency converter housing 1
  • the raised portion 22 is a protruding portion provided on the side face of the electromagnetic noise filter case 2 .
  • the recessed portion 21 and the raised portion 22 are fitted to or engaged with each other to fix the electromagnetic noise filter case 2 to the frequency converter housing 1 .
  • the frequency converter housing 1 and the filter housing of the electromagnetic noise filter case 2 are fitted to each other to fix the electromagnetic noise filter to the frequency converter.
  • a fitting portion fitting part of the frequency converter housing 1 and the filter housing of the electromagnetic noise filter case 2 to each other is provided in each housing.
  • the recessed groove 6 for mounting the wiring drawing plate 4 in the frequency converter housing 1 or the raised portion 7 in the electromagnetic noise filter case 2 is the fitting portion.
  • the fitting portion is not limited to the specific shape of the recessed groove 6 or raised portion 7 , but may have any different shape as appropriate as long as it allows the frequency converter housing 1 to be fixed to the filter housing of the electromagnetic noise filter case 2 .
  • fixation is not limited thereto, and part of the frequency converter housing 1 and part of the filter housing of the electromagnetic noise filter case 2 may be interlocked or engaged with each other for fixation.
  • an interlocking portion interlocked with part of each housing or an engagement portion engaging parts of the housings with each other is provided.
  • the attached filter can be removed to attach a filter for the specification with ease in the manner described above.
  • a noise filter effect can be increased by coupling together electromagnetic noise filter cases 2 having the same shape as shown in FIG. 2 .
  • the fitting portion composed of the recessed portion 21 and the raised portion 22 is provided in the electromagnetic noise filter case 2 , thus making it possible to couple together electromagnetic noise filter cases 2 at the fitting portion composed of the recessed portion 21 and the raised portion 22 .
  • the coupled noise filter cases may be different in size, thickness, characteristics of filters, contained condensers, electronic parts constituting the filter, and the like. However, by equalizing the outer dimensions of electromagnetic noise filter cases, the overall dimensional and the like as the frequency converter can be approximately estimated to afford convenience during installation in equipment as a matter of course.
  • a fixing screw for installing the electromagnetic noise filter is not required because the groove 6 provided originally for use in the frequency converter is used, and thus the need for screws can be eliminated for fixation.
  • a screw may be used, or an adhesive or Hook-and-Loop fastener (detachable plane fastener with a hook shape and a pile shape interlocked) may be used.
  • positioning for positioning the electromagnetic noise filter case 2 at a predetermined location in the frequency converter housing 1 can be considered.
  • a positioning portion is provided in part of the frequency converter housing 1 , and the electromagnetic noise filter case 2 is positioned based on the positioning portion and is then fixed with the screw or the like, whereby efficiency of fixation work and the like can be improved.
  • a portion such as the recessed portion 21 or raised portion 22 described with FIG. 2 may be used as a positioning portion.
  • positioning may be done by protruding a heat dissipation fin 30 shown in FIG. 7 by a predetermined length relative to the frequency converter housing 1 and abutting part of the electromagnetic noise filter case 2 against the protruding portion.
  • positioning may be done by providing a protruding portion in part of the frequency converter housing 1 and abutting part of the electromagnetic noise filter case 2 against the protruding portion.
  • the frequency converter housing 1 is never upsized even if the electromagnetic noise filter case is mounted.
  • the shape of the frequency converter housing 1 should not be changed between a type of frequency converter in which the electromagnetic noise filter case is mounted and a type of frequency converter in which electromagnetic noise filter case is not mounted. That is, regardless of whether the electromagnetic noise filter case is mounted or not, the shape of the frequency converter housing 1 can be equalized. This contributes to reduction in costs for moldings that are used during production of the frequency converter housing 1 , and the like.
  • FIG. 3 A view seen from the top is shown in FIG. 3 .
  • terminals 8 , 9 and 10 are connected to input terminals R, S and T, respectively.
  • the terminals 8 , 9 and 10 are made of conductive materials such as metals such as copper, aluminum and copper-nickel alloys.
  • the terminals 8 , 9 and 10 are made of thin metal and therefore, even if a slight difference in height occurs during connection to a terminal board provided in the frequency converter 1 , the material is warped and deformed to make connection easy.
  • the terminals 8 , 9 and 10 are conductive plates in the figure, but the same effect can be obtained if they are wire rods.
  • FIG. 6 A sectional view of the electromagnetic noise filter case is shown in FIG. 6 .
  • FIG. 7 Another sectional view of the electromagnetic noise filter case is shown in FIG. 7 .
  • a filter condenser 11 Inside the electromagnetic noise filter case 2 , a filter condenser 11 is placed and walls 12 and 13 for partitioning the filter condenser 11 are provided.
  • the filter condenser 11 is usually covered with a resin 23 of plastic as a sealing agent for ensuring improvement in moisture resistance and heat resistance and an insulation distance specified in the specification, and is thus unseen after assembly.
  • the filter condenser 11 that is used in Example does not have a case that is provided when the condenser is formed.
  • a usual condenser has electronic parts composed of metal plates and an insulator or the like as a dielectric material held between the metal plates covered with a condenser case.
  • the electronic part composed of metal plates and an insulator or the like as a dielectric material held between the metal plates is placed directly in the noise filter case 2 and covered with the resin 23 of plastic. With this configuration, the filter can be downsized and lightened as a whole because the usual condenser is absent.
  • the wall 13 provided near the groove 15 is made to be little taller than the wall 12 partitioning the condenser 11 , whereby the resin of plastic is prevented from flowing into the groove 15 even if a low-viscosity plastic resin is used when the filter condenser 11 is covered with the resin 23 of plastic.
  • the plastic resin is never leaked from the groove into which the earth bar 14 being a connection conductor on the ground side is fitted, and thus workability is improved.
  • the groove 15 is made to have an appropriate size, whereby the plastic resin used for sealing the filter condenser 11 is never leaked from the groove 15 owing to the viscosity of the plastic resin, thus making it possible to eliminate the need for the wall 13 .
  • the earth bar 5 for frequency converter and the earth bar 14 for filter condenser are connected directly on the undersurface of the electromagnetic noise filter case 2 , or connected through a conductor plate or wire rod.
  • the connection conductor on the ground side of the electromagnetic noise filter case 2 should be connected to the connection conductor on the installation side of the frequency converter at a shortest possible distance.
  • the conductor plate 20 grounding the filter condenser 11 on the ground side inside the electromagnetic noise filter case 2 is placed along the inner wall of the electromagnetic noise filter case 2 , whereby electromagnetic noises generated in the electromagnetic noise filter case 2 can be blocked.
  • a volume control knob 17 placed in the frequency converter 1 and provided in a digital operator 16 can easily be attached and detached.
  • the digital operator 16 is held between a waterproof cover 19 and a waterproof case 18 as shown in FIG. 4 , whereby waterproof measures can be made.
  • the filter apparatus and the frequency converter in the Example described above may be, for example, distributed, sold, and transferred in the market and the like with each of them as a single product. Alternatively, they may be, for example, distributed, sold and transferred in the market and the like as the frequency converter with the filter apparatus connected thereto, i.e. in an integrated state.
  • a condenser element having an electronic part having an insulator as a dielectric material held between conductor plates can be used.
  • Characteristics of the filter apparatus may be defined as not having influences such as electromagnetic noises on other electrical apparatuses and the like based on, for example, the CE specification, EN55011 and the specification of EN61800.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Human Computer Interaction (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Power Conversion In General (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Filters And Equalizers (AREA)

Abstract

A power converter connected to a wiring drawing portion of a frequency converter, said filter apparatus including: a condenser element having an electronic part having an insulator as a dielectric material held between conductor plates; a sealing agent sealing said condenser element; a filter circuit comprising said condenser element; a connection conductor establishing wiring connections of said filter circuit; and a filter housing supporting said sealing agent.

Description

    CROSS REFERENCE TO RELATED APPLICATION
  • This is a continuation of U.S. application Ser. No. 10/985,943, filed Nov. 12, 2004. This application relates to and claims priority from Japanese Patent Application No. 2003-384487, filed on Nov. 14, 2003. The entirety of the contents and subject matter of all of the above is incorporated herein by reference.
    • BACKGROUND OF THE INVENTION
  • The present invention relates to a technique for reducing noises of a frequency converter supplying electric power to, for example, a motor.
    • PRIOR ART
  • For specifications regarding electromagnetic noises in the frequency converter, performance characteristics for which the CE mark can be labeled, EN55011 (Class A, Class B) and EN61800 are known. The specifications and the like are described for specifying limit values of electromagnetic noises according to apparatuses used and classes of use environments to prevent influences on other electrical apparatuses.
  • Techniques regarding measures against noises as described above include, for example, the technique disclosed in Patent Document 1.
  • [Patent Document 1] JP-A-8-308250
  • In measures against noises, a filter apparatus reducing electromagnetic noises and the like is generally provided. However, if the filter apparatus is provided, a mounting space is required accordingly, and the drawing of wiring and the like for connecting the filter apparatus should be considered.
  • In view of the matters described above, the object of the present invention is to provide a filter apparatus reducing electromagnetic noises and the like for a frequency converter supplying electric power to, for example, a motor, and to realize a downsizing and the like of the frequency converter or filter apparatus while connecting the filter apparatus to the frequency converter.
    • BRIEF SUMMARY OF THE INVENTION
  • The present invention solves the above problem as follows. A filter apparatus reducing electromagnetic noises and the like is provided near a wiring drawing portion of a main circuit terminal board of a frequency converter.
  • The filter apparatus is connected to the wiring drawing portion of the main circuit terminal board.
  • Part of a housing of the frequency converter and part of a filter housing are fitted to each other to fix the filter housing on the frequency converter.
  • Characteristics of the filter apparatus may be defined as not having influences such as electromagnetic noises on other electric apparatuses based on performance characteristics for which the CE mark can be labeled, EN55011 and the specification of EN61800, for example.
  • Particularly, the specification of EN61800 and EN55011 (Class A, Class B) included in the specification of EN 61800 are generally well known in the frequency converter and the like.
  • Thus, as a filter apparatus reducing electromagnetic noises and the like, the filter apparatus may be configured to have characteristics of filter apparatus based on the specification of EN61800 and EN55011 (Class A, Class B) included in the specification of EN61800.
  • According to the present invention, a product having good characteristics can be provided as to reduction of noises of the frequency converter. Alternatively, a frequency converter having a reduced size while achieving a reduction in noises can be provided.
    • BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
  • FIG. 1 shows an example of a frequency converter having an electromagnetic noise filter mounted thereon;
  • FIG. 2 shows another example of the frequency converter having the electromagnetic noise filter mounted thereon;
  • FIG. 3 shows Example of the present invention (plan view);
  • FIG. 4 shows Example of a waterproof case of a digital operator;
  • FIG. 5 shows Example of the electromagnetic noise filter (sectional view);
  • FIG. 6 shows Example of the electromagnetic noise filter (another sectional view); and
  • FIG. 7 shows an example of another method for mounting the electromagnetic noise filter.
    •  DETAILED DESCRIPTION OF THE INVENTION
  • An electromagnetic noise filter as a filter apparatus reducing electromagnetic noises in Example according to the present invention, or a frequency converter to which the filter apparatus is connected will be described in detail below using Example shown in figures.
  • FIG. 1 shows an implementation of the electromagnetic noise filter as Example according to the present invention. In the figure, reference numeral 1 denotes a frequency converter housing, reference numeral 2 denotes an electromagnetic noise filter case, reference numeral 3 denotes a terminal board cover, reference numeral 4 denotes a wiring drawing plate, and reference numeral 5 denotes an earth bar for frequency converters. The frequency converter housing 1 is provided with a groove 6 for mounting the wiring drawing plate 4, and the wiring drawing plate 4 is provided with a raised portion 7. The electromagnetic noise filter case 2 is also provided with the raised portion 7. If no filter is required, the electromagnetic noise filter case 2 can be removed to fit the wiring drawing plate 4 directly into the groove 6 provided in a case of the frequency converter 1.
  • Attachment/detachment can be eased by providing a raised portion 22 on the side face of the electromagnetic noise filter case 2 and providing a recessed portion 21 on the side face of the frequency converter housing 1 as shown in FIG. 7. The recessed portion 21 is a hole-like portion provided on the side face of the frequency converter housing 1, and the raised portion 22 is a protruding portion provided on the side face of the electromagnetic noise filter case 2. The recessed portion 21 and the raised portion 22 are fitted to or engaged with each other to fix the electromagnetic noise filter case 2 to the frequency converter housing 1.
  • In the configuration shown in FIG. 1, the frequency converter housing 1 and the filter housing of the electromagnetic noise filter case 2 are fitted to each other to fix the electromagnetic noise filter to the frequency converter. For this purpose, a fitting portion fitting part of the frequency converter housing 1 and the filter housing of the electromagnetic noise filter case 2 to each other is provided in each housing.
  • In FIG. 1, the recessed groove 6 for mounting the wiring drawing plate 4 in the frequency converter housing 1 or the raised portion 7 in the electromagnetic noise filter case 2 is the fitting portion. However, the fitting portion is not limited to the specific shape of the recessed groove 6 or raised portion 7, but may have any different shape as appropriate as long as it allows the frequency converter housing 1 to be fixed to the filter housing of the electromagnetic noise filter case 2.
  • Example of fixation by fitting has been described above, but fixation is not limited thereto, and part of the frequency converter housing 1 and part of the filter housing of the electromagnetic noise filter case 2 may be interlocked or engaged with each other for fixation. In this case, an interlocking portion interlocked with part of each housing or an engagement portion engaging parts of the housings with each other is provided.
  • If a filter having better characteristics or a filter having a larger size is required for making the filter compliant with a higher specification in terms of the specification, the attached filter can be removed to attach a filter for the specification with ease in the manner described above.
  • Alternatively, a noise filter effect can be increased by coupling together electromagnetic noise filter cases 2 having the same shape as shown in FIG. 2. In this case, the fitting portion composed of the recessed portion 21 and the raised portion 22 is provided in the electromagnetic noise filter case 2, thus making it possible to couple together electromagnetic noise filter cases 2 at the fitting portion composed of the recessed portion 21 and the raised portion 22.
  • The coupled noise filter cases may be different in size, thickness, characteristics of filters, contained condensers, electronic parts constituting the filter, and the like. However, by equalizing the outer dimensions of electromagnetic noise filter cases, the overall dimensional and the like as the frequency converter can be approximately estimated to afford convenience during installation in equipment as a matter of course.
  • A fixing screw for installing the electromagnetic noise filter is not required because the groove 6 provided originally for use in the frequency converter is used, and thus the need for screws can be eliminated for fixation.
  • However, for fixing the electromagnetic noise filter case 2 to the frequency converter housing 1, a screw may be used, or an adhesive or Hook-and-Loop fastener (detachable plane fastener with a hook shape and a pile shape interlocked) may be used.
  • In this case, positioning for positioning the electromagnetic noise filter case 2 at a predetermined location in the frequency converter housing 1 can be considered. For example, a positioning portion is provided in part of the frequency converter housing 1, and the electromagnetic noise filter case 2 is positioned based on the positioning portion and is then fixed with the screw or the like, whereby efficiency of fixation work and the like can be improved.
  • For the positioning portion, a portion such as the recessed portion 21 or raised portion 22 described with FIG. 2 may be used as a positioning portion. Alternatively, positioning may be done by protruding a heat dissipation fin 30 shown in FIG. 7 by a predetermined length relative to the frequency converter housing 1 and abutting part of the electromagnetic noise filter case 2 against the protruding portion. Of course, positioning may be done by providing a protruding portion in part of the frequency converter housing 1 and abutting part of the electromagnetic noise filter case 2 against the protruding portion.
  • The location in the frequency converter housing 1 at which the electromagnetic noise filter case 2 is mounted, shown in FIG. 1, is a location at which a space must be usually provided for wiring to the frequency converter such as main circuit wiring. For this reason, it is not required to provide a space for mounting the electromagnetic noise filter case in the frequency converter housing 1.
  • Thus, the frequency converter housing 1 is never upsized even if the electromagnetic noise filter case is mounted. The shape of the frequency converter housing 1 should not be changed between a type of frequency converter in which the electromagnetic noise filter case is mounted and a type of frequency converter in which electromagnetic noise filter case is not mounted. That is, regardless of whether the electromagnetic noise filter case is mounted or not, the shape of the frequency converter housing 1 can be equalized. This contributes to reduction in costs for moldings that are used during production of the frequency converter housing 1, and the like.
  • A view seen from the top is shown in FIG. 3. From the electromagnetic noise filter case 2, terminals 8, 9 and 10 are connected to input terminals R, S and T, respectively. The terminals 8, 9 and 10 are made of conductive materials such as metals such as copper, aluminum and copper-nickel alloys.
  • The terminals 8, 9 and 10 are made of thin metal and therefore, even if a slight difference in height occurs during connection to a terminal board provided in the frequency converter 1, the material is warped and deformed to make connection easy. The terminals 8, 9 and 10 are conductive plates in the figure, but the same effect can be obtained if they are wire rods.
  • A sectional view of the electromagnetic noise filter case is shown in FIG. 6. Another sectional view of the electromagnetic noise filter case is shown in FIG. 7. Inside the electromagnetic noise filter case 2, a filter condenser 11 is placed and walls 12 and 13 for partitioning the filter condenser 11 are provided. The filter condenser 11 is usually covered with a resin 23 of plastic as a sealing agent for ensuring improvement in moisture resistance and heat resistance and an insulation distance specified in the specification, and is thus unseen after assembly.
  • Usually, the filter condenser 11 that is used in Example does not have a case that is provided when the condenser is formed. A usual condenser has electronic parts composed of metal plates and an insulator or the like as a dielectric material held between the metal plates covered with a condenser case. In Example, the electronic part composed of metal plates and an insulator or the like as a dielectric material held between the metal plates is placed directly in the noise filter case 2 and covered with the resin 23 of plastic. With this configuration, the filter can be downsized and lightened as a whole because the usual condenser is absent.
  • A groove 15 through which an earth bar 14 for filter condenser connected to the earth bar 5 for frequency converter passes. The wall 13 provided near the groove 15 is made to be little taller than the wall 12 partitioning the condenser 11, whereby the resin of plastic is prevented from flowing into the groove 15 even if a low-viscosity plastic resin is used when the filter condenser 11 is covered with the resin 23 of plastic. As a result, even if a low-viscosity resin not requiring a degassing apparatus or the like is used, the plastic resin is never leaked from the groove into which the earth bar 14 being a connection conductor on the ground side is fitted, and thus workability is improved.
  • When a high-viscosity plastic resin is used, the groove 15 is made to have an appropriate size, whereby the plastic resin used for sealing the filter condenser 11 is never leaked from the groove 15 owing to the viscosity of the plastic resin, thus making it possible to eliminate the need for the wall 13.
  • The earth bar 5 for frequency converter and the earth bar 14 for filter condenser are connected directly on the undersurface of the electromagnetic noise filter case 2, or connected through a conductor plate or wire rod. As in the connection form described above, the connection conductor on the ground side of the electromagnetic noise filter case 2 should be connected to the connection conductor on the installation side of the frequency converter at a shortest possible distance.
  • The conductor plate 20 grounding the filter condenser 11 on the ground side inside the electromagnetic noise filter case 2 is placed along the inner wall of the electromagnetic noise filter case 2, whereby electromagnetic noises generated in the electromagnetic noise filter case 2 can be blocked.
  • A volume control knob 17 placed in the frequency converter 1 and provided in a digital operator 16 can easily be attached and detached.
  • The digital operator 16 is held between a waterproof cover 19 and a waterproof case 18 as shown in FIG. 4, whereby waterproof measures can be made.
  • The filter apparatus and the frequency converter in the Example described above may be, for example, distributed, sold, and transferred in the market and the like with each of them as a single product. Alternatively, they may be, for example, distributed, sold and transferred in the market and the like as the frequency converter with the filter apparatus connected thereto, i.e. in an integrated state.
  • For a condenser element that is used in the filter apparatus in the Example described above, a condenser element having an electronic part having an insulator as a dielectric material held between conductor plates can be used.
  • Characteristics of the filter apparatus may be defined as not having influences such as electromagnetic noises on other electrical apparatuses and the like based on, for example, the CE specification, EN55011 and the specification of EN61800.
  • It should be further understood by those skilled in the art that although the foregoing description has been made on embodiments of the invention, the invention is not limited thereto and various changes and modifications may be made without departing from the spirit of the invention and the scope of the appended claims.

Claims (6)

1. A power converter connected to a wiring drawing portion of a frequency converter, said filter apparatus comprising:
a condenser element having an electronic part having an insulator as a dielectric material held between conductor plates;
a sealing agent sealing said condenser element;
a filter circuit comprising said condenser element;
a connection conductor establishing wiring connections of said filter circuit; and
a filter housing supporting said sealing agent;
wherein said filter apparatus is fixed to said frequency converter based on a positioning portion provided in part of the housing of said frequency converter.
2. The power converter according to claim 1, wherein the raised portion provided in said filter apparatus is interlocked with a hole-like positioning portion provided in part of the housing of said frequency converter to position said filter apparatus in said frequency converter.
3. The power converter according to claim 1, wherein said filter apparatus is abutted against a step-like positioning portion provided in part of the housing of said frequency converter to position said filter apparatus in said frequency converter.
4. The power converter according to claim 1, wherein an adhesive is used to fix said filter apparatus to the housing of said frequency converter.
5. The power converter according to claim 1, wherein a screw is used to fix said filter apparatus to the housing of said frequency converter.
6. The power converter according to claim 1, wherein a Hook-and-Loop is used to fix said filter apparatus to the housing of said frequency converter.
US12/249,412 2003-11-14 2008-10-10 Filter apparatus and frequency coverter to which the filter apparatus is connected Abandoned US20090040743A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/249,412 US20090040743A1 (en) 2003-11-14 2008-10-10 Filter apparatus and frequency coverter to which the filter apparatus is connected

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2003-384487 2003-11-14
JP2003384487A JP4231769B2 (en) 2003-11-14 2003-11-14 Filter device and power conversion device to which the filter device is connected
US10/985,943 US7643304B2 (en) 2003-11-14 2004-11-12 Filter apparatus and frequency converter to which the filter apparatus is connected
US12/249,412 US20090040743A1 (en) 2003-11-14 2008-10-10 Filter apparatus and frequency coverter to which the filter apparatus is connected

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US10/985,943 Continuation US7643304B2 (en) 2003-11-14 2004-11-12 Filter apparatus and frequency converter to which the filter apparatus is connected

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US20090040743A1 true US20090040743A1 (en) 2009-02-12

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US10/985,943 Expired - Fee Related US7643304B2 (en) 2003-11-14 2004-11-12 Filter apparatus and frequency converter to which the filter apparatus is connected
US12/249,412 Abandoned US20090040743A1 (en) 2003-11-14 2008-10-10 Filter apparatus and frequency coverter to which the filter apparatus is connected
US12/249,385 Abandoned US20090046434A1 (en) 2003-11-14 2008-10-10 Filter apparatus and frequency converter to which the filter apparatus is connected
US12/249,374 Abandoned US20090040733A1 (en) 2003-11-14 2008-10-10 Filter apparatus and frequency converter to which the filter apparatus is connected
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Families Citing this family (75)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10693415B2 (en) 2007-12-05 2020-06-23 Solaredge Technologies Ltd. Testing of a photovoltaic panel
US11881814B2 (en) 2005-12-05 2024-01-23 Solaredge Technologies Ltd. Testing of a photovoltaic panel
US11728768B2 (en) 2006-12-06 2023-08-15 Solaredge Technologies Ltd. Pairing of components in a direct current distributed power generation system
US8319483B2 (en) 2007-08-06 2012-11-27 Solaredge Technologies Ltd. Digital average input current control in power converter
US9130401B2 (en) 2006-12-06 2015-09-08 Solaredge Technologies Ltd. Distributed power harvesting systems using DC power sources
US7900361B2 (en) 2006-12-06 2011-03-08 Solaredge, Ltd. Current bypass for distributed power harvesting systems using DC power sources
US8963369B2 (en) 2007-12-04 2015-02-24 Solaredge Technologies Ltd. Distributed power harvesting systems using DC power sources
US8618692B2 (en) 2007-12-04 2013-12-31 Solaredge Technologies Ltd. Distributed power system using direct current power sources
US11309832B2 (en) 2006-12-06 2022-04-19 Solaredge Technologies Ltd. Distributed power harvesting systems using DC power sources
US11296650B2 (en) 2006-12-06 2022-04-05 Solaredge Technologies Ltd. System and method for protection during inverter shutdown in distributed power installations
US9112379B2 (en) 2006-12-06 2015-08-18 Solaredge Technologies Ltd. Pairing of components in a direct current distributed power generation system
US9088178B2 (en) 2006-12-06 2015-07-21 Solaredge Technologies Ltd Distributed power harvesting systems using DC power sources
US11569659B2 (en) 2006-12-06 2023-01-31 Solaredge Technologies Ltd. Distributed power harvesting systems using DC power sources
US11687112B2 (en) 2006-12-06 2023-06-27 Solaredge Technologies Ltd. Distributed power harvesting systems using DC power sources
US11735910B2 (en) 2006-12-06 2023-08-22 Solaredge Technologies Ltd. Distributed power system using direct current power sources
EP3288165B1 (en) * 2006-12-06 2021-10-13 Solaredge Technologies Ltd. Removable component cartridge for increasing reliability in power harvesting systems
US8473250B2 (en) 2006-12-06 2013-06-25 Solaredge, Ltd. Monitoring of distributed power harvesting systems using DC power sources
US8319471B2 (en) 2006-12-06 2012-11-27 Solaredge, Ltd. Battery power delivery module
US8013472B2 (en) 2006-12-06 2011-09-06 Solaredge, Ltd. Method for distributed power harvesting using DC power sources
US11888387B2 (en) 2006-12-06 2024-01-30 Solaredge Technologies Ltd. Safety mechanisms, wake up and shutdown methods in distributed power installations
US11855231B2 (en) 2006-12-06 2023-12-26 Solaredge Technologies Ltd. Distributed power harvesting systems using DC power sources
US8947194B2 (en) 2009-05-26 2015-02-03 Solaredge Technologies Ltd. Theft detection and prevention in a power generation system
US8384243B2 (en) 2007-12-04 2013-02-26 Solaredge Technologies Ltd. Distributed power harvesting systems using DC power sources
US8816535B2 (en) 2007-10-10 2014-08-26 Solaredge Technologies, Ltd. System and method for protection during inverter shutdown in distributed power installations
EP2232663B2 (en) 2007-12-05 2021-05-26 Solaredge Technologies Ltd. Safety mechanisms, wake up and shutdown methods in distributed power installations
US11264947B2 (en) 2007-12-05 2022-03-01 Solaredge Technologies Ltd. Testing of a photovoltaic panel
WO2009072075A2 (en) 2007-12-05 2009-06-11 Solaredge Technologies Ltd. Photovoltaic system power tracking method
US8049523B2 (en) 2007-12-05 2011-11-01 Solaredge Technologies Ltd. Current sensing on a MOSFET
WO2009073867A1 (en) 2007-12-05 2009-06-11 Solaredge, Ltd. Parallel connected inverters
WO2009072077A1 (en) 2007-12-05 2009-06-11 Meir Adest Testing of a photovoltaic panel
EP2269290B1 (en) 2008-03-24 2018-12-19 Solaredge Technologies Ltd. Switch mode converter including active clamp for achieving zero voltage switching
EP2110929B1 (en) * 2008-04-18 2018-08-29 Grundfos Management a/s Frequency inverter being mounted on a motor
EP2294669B8 (en) 2008-05-05 2016-12-07 Solaredge Technologies Ltd. Direct current power combiner
US8630098B2 (en) 2008-06-12 2014-01-14 Solaredge Technologies Ltd. Switching circuit layout with heatsink
JP5203836B2 (en) * 2008-07-28 2013-06-05 株式会社日立産機システム Noise filter cover
BRPI0901450A2 (en) * 2009-05-04 2011-01-18 Weg Automacao S A communication protocol interface module
US8303349B2 (en) 2009-05-22 2012-11-06 Solaredge Technologies Ltd. Dual compressive connector
JP2012527767A (en) 2009-05-22 2012-11-08 ソラレッジ テクノロジーズ リミテッド Electrical insulated heat dissipation junction box
US8690110B2 (en) 2009-05-25 2014-04-08 Solaredge Technologies Ltd. Bracket for connection of a junction box to photovoltaic panels
US8710699B2 (en) 2009-12-01 2014-04-29 Solaredge Technologies Ltd. Dual use photovoltaic system
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US10673229B2 (en) 2010-11-09 2020-06-02 Solaredge Technologies Ltd. Arc detection and prevention in a power generation system
GB2485527B (en) 2010-11-09 2012-12-19 Solaredge Technologies Ltd Arc detection and prevention in a power generation system
US10673222B2 (en) 2010-11-09 2020-06-02 Solaredge Technologies Ltd. Arc detection and prevention in a power generation system
US10230310B2 (en) 2016-04-05 2019-03-12 Solaredge Technologies Ltd Safety switch for photovoltaic systems
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GB2483317B (en) 2011-01-12 2012-08-22 Solaredge Technologies Ltd Serially connected inverters
JP5370935B2 (en) * 2011-04-18 2013-12-18 株式会社安川電機 Power converter and filter switch
US8570005B2 (en) 2011-09-12 2013-10-29 Solaredge Technologies Ltd. Direct current link circuit
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GB2498791A (en) 2012-01-30 2013-07-31 Solaredge Technologies Ltd Photovoltaic panel circuitry
US9853565B2 (en) 2012-01-30 2017-12-26 Solaredge Technologies Ltd. Maximized power in a photovoltaic distributed power system
GB2498790A (en) 2012-01-30 2013-07-31 Solaredge Technologies Ltd Maximising power in a photovoltaic distributed power system
GB2499991A (en) 2012-03-05 2013-09-11 Solaredge Technologies Ltd DC link circuit for photovoltaic array
JP2013219919A (en) * 2012-04-09 2013-10-24 Mitsubishi Electric Corp Noise reduction filter and electric power conversion device using the same
EP3168971B2 (en) 2012-05-25 2022-11-23 Solaredge Technologies Ltd. Circuit for interconnected direct current power sources
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US9941813B2 (en) 2013-03-14 2018-04-10 Solaredge Technologies Ltd. High frequency multi-level inverter
US9548619B2 (en) 2013-03-14 2017-01-17 Solaredge Technologies Ltd. Method and apparatus for storing and depleting energy
EP3506370B1 (en) 2013-03-15 2023-12-20 Solaredge Technologies Ltd. Bypass mechanism
US9318974B2 (en) 2014-03-26 2016-04-19 Solaredge Technologies Ltd. Multi-level inverter with flying capacitor topology
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US11177663B2 (en) 2016-04-05 2021-11-16 Solaredge Technologies Ltd. Chain of power devices
US11018623B2 (en) 2016-04-05 2021-05-25 Solaredge Technologies Ltd. Safety switch for photovoltaic systems
US12057807B2 (en) 2016-04-05 2024-08-06 Solaredge Technologies Ltd. Chain of power devices
US10998670B2 (en) * 2017-04-21 2021-05-04 Mitsubishi Electric Corporation Connection structure for power conversion device
KR102075415B1 (en) * 2018-01-29 2020-02-11 엘에스산전 주식회사 Device for driving motor
JP6802987B2 (en) * 2018-05-16 2020-12-23 株式会社オートネットワーク技術研究所 Noise filter device
KR200494560Y1 (en) * 2019-11-01 2021-11-03 엘에스일렉트릭(주) Structure for Installing Inverter

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4455538A (en) * 1981-08-26 1984-06-19 Siemens Aktiengesellschaft Subassembly, in particular a choke and a filter for radio interference control
US4464702A (en) * 1983-06-14 1984-08-07 The United States Of America As Represented By The Secretary Of The Air Force EMI filter capacitor unit
US5091823A (en) * 1988-08-31 1992-02-25 Hitachi, Ltd. Inverter device
US5277625A (en) * 1992-11-03 1994-01-11 The Whitaker Corporation Electrical connector with tape filter
US5397250A (en) * 1993-04-06 1995-03-14 Amphenol Corporation Modular jack with filter
US6320776B1 (en) * 1999-02-24 2001-11-20 Mitsubishi Denki Kabushiki Kaisha Power drive apparatus
US6381153B1 (en) * 1999-04-20 2002-04-30 Hill-Rom Services, Inc. Method and apparatus of EMI filtering that eliminates the need for an inductor
US6437993B1 (en) * 1998-03-19 2002-08-20 Continental Teves Ag & Co., Ohg Shielded housing for electronic circuit or components
US6563707B1 (en) * 2000-09-14 2003-05-13 Otis Elevator Company Chassis for mounting component units of an electric switch cabinet for elevators and escalators
US20030179594A1 (en) * 2000-08-16 2003-09-25 Manfred Bruckmann Device for effecting the basic interference suppression of a matrix converter
US6803746B2 (en) * 2001-11-02 2004-10-12 Aker Wade Power Technologies, Llc Fast charger for high capacity batteries
US6803726B2 (en) * 2002-10-12 2004-10-12 Samsung Electronics Co., Ltd. Noise filter of high frequency generator
US6822866B2 (en) * 2000-11-03 2004-11-23 Smc Electrical Products Inc. Microdrive
US7042198B2 (en) * 2002-02-26 2006-05-09 Keio University System using a power converter
US7317626B2 (en) * 2003-09-09 2008-01-08 Hitachi, Ltd. Power converter

Family Cites Families (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552601B1 (en) * 1983-09-27 1988-10-14 Thomson Csf MINIATURE MICROWAVE FILTER WITH RESONATORS MADE BY PLUG CIRCUITS, COUPLED BY CAPACITORS
KR900003934B1 (en) * 1984-12-12 1990-06-04 가부시기가이샤 히다찌세이사구쇼 Magnetron
IT1181657B (en) * 1985-05-06 1987-09-30 Ital Idee Srl FILTER FOR LUBRICANT OIL FOR INTERNAL COMBUSTION ENGINES, IN PARTICULAR OF MOTOR VEHICLES, WITH CONTROL BODIES FOR THE CLOGGING LEVEL OF THE FILTER SURFACE
DE3642723A1 (en) * 1986-12-13 1988-06-23 Grundfos Int STATIC FREQUENCY INVERTER, ESPECIALLY FREQUENCY INVERTER FOR CONTROLLING AND / OR REGULATING THE PERFORMANCE SIZE OF AN ELECTRIC MOTOR
US5070494A (en) * 1988-04-05 1991-12-03 Ricoh Company, Ltd. Optical pickup device with dual-mode drive mechanism
EP0354435B1 (en) * 1988-08-12 1995-12-20 Hitachi, Ltd. A drive circuit for an insulated gate transistor; and its use in a switching circuit, a current switching apparatus and an induction motor system
JP2950939B2 (en) * 1990-08-02 1999-09-20 株式会社日立製作所 Inverter device
US5787063A (en) * 1990-09-20 1998-07-28 Richoh Company, Ltd. Disk drive unit having improved shutter mechanism
US5351228A (en) * 1990-09-20 1994-09-27 Ricoh Company Ltd. Optical disk drive unit
JP2895660B2 (en) * 1991-06-03 1999-05-24 株式会社リコー Optical disk drive
USRE37093E1 (en) * 1991-06-03 2001-03-13 Ricoh Company, Ltd. Optical disk drive unit with a sealing type bearing member
US5245527A (en) 1991-12-24 1993-09-14 Siemens Electric Limited Modular ac drive controller
US5270540A (en) * 1992-03-23 1993-12-14 Eastman Kodak Company Monitor calibrator housing and mounting bracket
JPH08308250A (en) 1995-05-10 1996-11-22 Mitsubishi Electric Corp Terminal block and control device using the same
JPH08330188A (en) 1995-05-30 1996-12-13 Nissei Denki Kk Noise suppression electronic device and its manufacture
JP3017453B2 (en) * 1996-05-24 2000-03-06 株式会社リコー Information recording / reproducing device
US5724237A (en) * 1996-06-11 1998-03-03 Unipower Corporation Apparatus and method for sharing a load current among frequency-controlled D.C.-to-D.C. converters
US6137780A (en) * 1997-08-07 2000-10-24 At&T Corp Apparatus and method to monitor communication system status
US6218913B1 (en) * 1998-02-18 2001-04-17 Curtis Industries, A Division Of Powers Holatings, Inc. Coaxial toroid EMI filter with discrete capacitors surrounding conductors
JP3767165B2 (en) 1998-04-15 2006-04-19 三菱電機株式会社 Noise filter
US5997614A (en) * 1998-07-13 1999-12-07 Donaldson Company, Inc. Filter with diffusion channel and methods of making and using the filter
TW407362B (en) * 1998-07-21 2000-10-01 Hitachi Ltd Power switch apparatus and the buffer component that automatically eliminates the arc
GB2340292B (en) * 1998-07-28 2002-10-23 Ricoh Kk Optical data storage medium capable of reversibly displaying information
JP3812196B2 (en) 1998-12-25 2006-08-23 松下電器産業株式会社 Capacitor
WO2000055875A1 (en) * 1999-03-16 2000-09-21 Maxwell Energy Products Low inductance four terminal capacitor lead frame
JP3680627B2 (en) * 1999-04-27 2005-08-10 富士電機機器制御株式会社 Noise filter
WO2001014041A2 (en) * 1999-08-23 2001-03-01 Gore Enterprise Holdings, Inc. Filter for removing contaminants from an enclosure
DE10034054A1 (en) * 2000-07-13 2002-04-04 Epcos Ag Mains filter has each phase input connected to phase output via filter inductance connected on input side to earth conductor via filter capacitor, auxiliary inductances
US6364923B1 (en) * 2000-07-14 2002-04-02 The University Of Chicago Method and apparatus for the clean replacement of contaminated HEPA filters
US6573665B2 (en) * 2000-08-01 2003-06-03 Spectronics Corporation Inspection lamp with interchangeable AC or DC power cords
TW499793B (en) * 2000-08-30 2002-08-21 Nec Tokin Corp Distributed constant type noise filter
US6345507B1 (en) * 2000-09-29 2002-02-12 Electrografics International Corporation Compact thermoelectric cooling system
JP4031623B2 (en) * 2001-06-15 2008-01-09 株式会社リコー Optical disc recording method, information processing method, optical disc apparatus, and information processing apparatus
US6873240B2 (en) * 2001-08-21 2005-03-29 Hitachi, Ltd. Power converter
US7301308B2 (en) * 2001-11-02 2007-11-27 Aker Wade Power Technologies, Llc Fast charger for high capacity batteries
JP2003235004A (en) * 2001-12-05 2003-08-22 Ricoh Co Ltd Information processor, information processing method, information processing program and recording medium
DE10325525B4 (en) * 2003-06-04 2013-10-24 Boll & Kirch Filterbau Gmbh backwash filter
US7295448B2 (en) * 2004-06-04 2007-11-13 Siemens Vdo Automotive Corporation Interleaved power converter
US7289329B2 (en) * 2004-06-04 2007-10-30 Siemens Vdo Automotive Corporation Integration of planar transformer and/or planar inductor with power switches in power converter
WO2007028176A1 (en) * 2005-09-09 2007-03-15 Dexwet Usa Llc Filter module

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4455538A (en) * 1981-08-26 1984-06-19 Siemens Aktiengesellschaft Subassembly, in particular a choke and a filter for radio interference control
US4464702A (en) * 1983-06-14 1984-08-07 The United States Of America As Represented By The Secretary Of The Air Force EMI filter capacitor unit
US5091823A (en) * 1988-08-31 1992-02-25 Hitachi, Ltd. Inverter device
US5277625A (en) * 1992-11-03 1994-01-11 The Whitaker Corporation Electrical connector with tape filter
US5397250A (en) * 1993-04-06 1995-03-14 Amphenol Corporation Modular jack with filter
US6437993B1 (en) * 1998-03-19 2002-08-20 Continental Teves Ag & Co., Ohg Shielded housing for electronic circuit or components
US6320776B1 (en) * 1999-02-24 2001-11-20 Mitsubishi Denki Kabushiki Kaisha Power drive apparatus
US6381153B1 (en) * 1999-04-20 2002-04-30 Hill-Rom Services, Inc. Method and apparatus of EMI filtering that eliminates the need for an inductor
US20030179594A1 (en) * 2000-08-16 2003-09-25 Manfred Bruckmann Device for effecting the basic interference suppression of a matrix converter
US6563707B1 (en) * 2000-09-14 2003-05-13 Otis Elevator Company Chassis for mounting component units of an electric switch cabinet for elevators and escalators
US6822866B2 (en) * 2000-11-03 2004-11-23 Smc Electrical Products Inc. Microdrive
US6803746B2 (en) * 2001-11-02 2004-10-12 Aker Wade Power Technologies, Llc Fast charger for high capacity batteries
US7042198B2 (en) * 2002-02-26 2006-05-09 Keio University System using a power converter
US6803726B2 (en) * 2002-10-12 2004-10-12 Samsung Electronics Co., Ltd. Noise filter of high frequency generator
US7317626B2 (en) * 2003-09-09 2008-01-08 Hitachi, Ltd. Power converter

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EP1531545B1 (en) 2015-03-25
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CN1619930A (en) 2005-05-25
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US20090040733A1 (en) 2009-02-12
JP4231769B2 (en) 2009-03-04
US20090046435A1 (en) 2009-02-19
CN100446389C (en) 2008-12-24
JP2005151675A (en) 2005-06-09
US7643304B2 (en) 2010-01-05
CN101388597A (en) 2009-03-18
CN101388598A (en) 2009-03-18
US20050126811A1 (en) 2005-06-16
US20090046434A1 (en) 2009-02-19
TWI282205B (en) 2007-06-01

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