PT98263A - Aparelho para controlo de um conversor de potencia utilizando um circuito de comutacao ressonante auxiliar - Google Patents
Aparelho para controlo de um conversor de potencia utilizando um circuito de comutacao ressonante auxiliarInfo
- Publication number
- PT98263A PT98263A PT98263A PT9826391A PT98263A PT 98263 A PT98263 A PT 98263A PT 98263 A PT98263 A PT 98263A PT 9826391 A PT9826391 A PT 9826391A PT 98263 A PT98263 A PT 98263A
- Authority
- PT
- Portugal
- Prior art keywords
- checking
- power converter
- cutting circuit
- auxiliary resonant
- resonant cutting
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- 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
- H02M7/4826—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 operating from a resonant DC source, i.e. the DC input voltage varies periodically, e.g. resonant DC-link inverters
-
- 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
- H02M7/505—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 thyratron or thyristor type requiring extinguishing means
- H02M7/515—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M7/523—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only with LC-resonance circuit in the main circuit
-
- 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
- H02M7/4811—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 having auxiliary actively switched resonant commutation circuits connected to intermediate DC voltage or between two push-pull branches
-
- 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
- H02M7/505—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 thyratron or thyristor type requiring extinguishing means
- H02M7/515—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M7/5152—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only with separate extinguishing means
-
- 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
- H02M7/505—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 thyratron or thyristor type requiring extinguishing means
- H02M7/515—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M7/523—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only with LC-resonance circuit in the main circuit
- H02M7/5233—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only with LC-resonance circuit in the main circuit the commutation elements being in a push-pull arrangement
- H02M7/5236—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only with LC-resonance circuit in the main circuit the commutation elements being in a push-pull arrangement in a series push-pull arrangement
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Dc-Dc Converters (AREA)
- Inert Electrodes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/583,910 US5047913A (en) | 1990-09-17 | 1990-09-17 | Method for controlling a power converter using an auxiliary resonant commutation circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PT98263A true PT98263A (pt) | 1993-08-31 |
| PT98263B PT98263B (pt) | 1999-01-29 |
Family
ID=24335109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PT98263A PT98263B (pt) | 1990-09-17 | 1991-07-09 | Aparelho para controlo de um conversor de potencia utilizando um circuito de comutacao ressonante auxiliar |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US5047913A (pt) |
| EP (1) | EP0500818B1 (pt) |
| JP (1) | JP3037415B2 (pt) |
| KR (1) | KR100197825B1 (pt) |
| BR (1) | BR9106078A (pt) |
| DE (1) | DE69113981T2 (pt) |
| ES (1) | ES2079661T3 (pt) |
| GR (1) | GR1000904B (pt) |
| MX (1) | MX9100234A (pt) |
| PT (1) | PT98263B (pt) |
| WO (1) | WO1992005625A1 (pt) |
Families Citing this family (76)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5172309A (en) * | 1991-08-07 | 1992-12-15 | General Electric Company | Auxiliary quasi-resonant dc link converter |
| US5307004A (en) * | 1992-07-06 | 1994-04-26 | Carsten Bruce W | Soft switching boost and buck regulators |
| US5568368A (en) * | 1993-05-03 | 1996-10-22 | General Electric Company | Square-wave converters with soft voltage transitions for ac power distribution systems |
| JPH10501958A (ja) * | 1994-05-11 | 1998-02-17 | ビー アンド ダブリュー ラウドスピーカーズ リミテッド | 被制御型整流回路 |
| EP0727870B1 (en) * | 1995-02-14 | 2000-08-30 | Kabushiki Kaisha Toshiba | Power converter |
| JPH08289561A (ja) * | 1995-02-14 | 1996-11-01 | Toshiba Corp | 電力変換装置 |
| US5684426A (en) * | 1995-12-21 | 1997-11-04 | General Electric Company | GTO gate driver circuits for snubbered and zero voltage soft switching converters |
| US5892673A (en) * | 1996-03-25 | 1999-04-06 | General Electric Company | Robust, high-density, high-efficiency state sequence controller for an auxiliary resonant commutation pole power converter |
| US5710699A (en) * | 1996-05-28 | 1998-01-20 | General Electric Company | Power electronic interface circuits for batteries and ultracapacitors in electric vehicles and battery storage systems |
| US5723956A (en) * | 1996-05-28 | 1998-03-03 | General Electric Company | Low cost electronic ultracapacitor interface technique to provide load leveling of a battery for pulsed load or motor traction drive applications |
| US5684688A (en) * | 1996-06-24 | 1997-11-04 | Reliance Electric Industrial Company | Soft switching three-level inverter |
| US5798633A (en) * | 1996-07-26 | 1998-08-25 | General Electric Company | Battery energy storage power conditioning system |
| CA2184663A1 (en) * | 1996-09-03 | 1998-03-04 | John C. Salmon | Harmonic correction of 3-phase rectifiers and converters |
| FR2753850B1 (fr) * | 1996-09-24 | 1998-11-13 | Convertisseur de puissance a commutation douce comprenant des moyens de correction de la tension mediane d'un diviseur de tension capacitif | |
| FR2758019B1 (fr) * | 1996-12-30 | 1999-01-22 | Alsthom Cge Alcatel | Convertisseur de puissance a commande amelioree des commutateurs principaux |
| US6091615A (en) * | 1997-11-28 | 2000-07-18 | Denso Corporation | Resonant power converter |
| US5898583A (en) * | 1998-02-02 | 1999-04-27 | General Electric Company | Gate drive latching circuit for an auxiliary resonant commutation circuit |
| US6069809A (en) * | 1998-05-08 | 2000-05-30 | Denso Corporation | Resonant inverter apparatus |
| US6865096B1 (en) | 1998-07-09 | 2005-03-08 | Illinois Tool Works Inc. | Power convertor with low loss switching |
| US6115273A (en) * | 1998-07-09 | 2000-09-05 | Illinois Tool Works Inc. | Power converter with low loss switching |
| US6087738A (en) * | 1998-08-20 | 2000-07-11 | Robicon Corporation | Variable output three-phase transformer |
| US6262555B1 (en) | 1998-10-02 | 2001-07-17 | Robicon Corporation | Apparatus and method to generate braking torque in an AC drive |
| US6225862B1 (en) * | 1998-11-13 | 2001-05-01 | Lamda Electronics Inc. | Series resonant circuit with inherent short circuit protection |
| US6268666B1 (en) | 1999-02-25 | 2001-07-31 | Southwest Research Institute | Bi-directional power conversion apparatus for combination of energy sources |
| DE19945864A1 (de) * | 1999-04-20 | 2000-10-26 | Abb Patent Gmbh | ARCP Dreipunkt- oder Mehrpunktstromrichter |
| EP1087512A3 (de) * | 1999-09-02 | 2006-03-08 | ABB PATENT GmbH | ARCP Mehrpunktstromrichter mit potientialvariablen Zwischenkreiskapazitäten |
| EP1287608A1 (en) * | 2000-04-03 | 2003-03-05 | Aalborg University | A resonant converter |
| WO2001082461A2 (en) | 2000-04-20 | 2001-11-01 | Intersil Corporation | Quasi-resonant converter |
| AU5261601A (en) | 2000-04-28 | 2001-11-12 | Tdk Corporation | Power converting device |
| DE60124713T2 (de) * | 2000-05-10 | 2007-09-13 | Hitachi Medical Corp. | Röntgengenerator und denselbigen enthaltende röntgen-ct-vorrichtung |
| DK174165B1 (da) * | 2000-10-13 | 2002-08-05 | American Power Conversion Denm | Resonanskonverter |
| SE521885C2 (sv) * | 2001-04-11 | 2003-12-16 | Abb Ab | Strömriktare |
| JP2002325464A (ja) | 2001-04-26 | 2002-11-08 | Honda Motor Co Ltd | 共振形インバータ回路 |
| US6570780B2 (en) | 2001-05-17 | 2003-05-27 | Honda Giken Kogyo Kabushiki Kaisha | Resonant inverter control system |
| SE522427C2 (sv) * | 2001-05-30 | 2004-02-10 | Abb Ab | Omriktaranordning samt förfarande för styrning av en sådan |
| US6646407B2 (en) * | 2001-06-08 | 2003-11-11 | General Motors Corporation | Electric motor control having DC-DC converter and method of using same |
| SE523487C2 (sv) * | 2001-07-16 | 2004-04-20 | Abb Ab | Förfarande för styrning av en strömriktare |
| CN1291543C (zh) | 2001-08-13 | 2006-12-20 | 应达公司 | 容错电源变换电路 |
| US6570370B2 (en) * | 2001-08-21 | 2003-05-27 | Raven Technology, Llc | Apparatus for automatic tuning and control of series resonant circuits |
| SE524447C2 (sv) * | 2002-08-08 | 2004-08-10 | Abb Ab | Strömriktare samt förfarande för styrning därav |
| TW200623597A (en) * | 2004-08-30 | 2006-07-01 | Advanced Energy Ind Inc | Bipolar power supply with lossless snubber |
| US7126833B2 (en) * | 2004-11-24 | 2006-10-24 | Ut-Battelle, Llc | Auxiliary quasi-resonant dc tank electrical power converter |
| US7602157B2 (en) | 2005-12-28 | 2009-10-13 | Flyback Energy, Inc. | Supply architecture for inductive loads |
| US8672732B2 (en) * | 2006-01-19 | 2014-03-18 | Schneider Electric It Corporation | Cooling system and method |
| ES2612328T3 (es) | 2007-05-15 | 2017-05-16 | Schneider Electric It Corporation | Métodos y sistemas para gestionar potencia y enfriamiento de una instalación |
| CN101388612B (zh) * | 2007-09-14 | 2011-08-31 | 力博特公司 | 一种开关电源中软开关电路的控制方法 |
| AU2008302264B2 (en) * | 2007-09-18 | 2013-10-03 | Flyback Energy, Inc. | Current waveform construction to generate AC power with low harmonic distortion from localized energy sources |
| US8116105B2 (en) | 2008-02-07 | 2012-02-14 | American Power Conversion Corporation | Systems and methods for uninterruptible power supply control |
| US7881079B2 (en) * | 2008-03-24 | 2011-02-01 | American Power Conversion Corporation | UPS frequency converter and line conditioner |
| JP5228886B2 (ja) * | 2008-09-05 | 2013-07-03 | 富士電機株式会社 | スナバ回路 |
| WO2010125630A1 (ja) | 2009-04-27 | 2010-11-04 | 東芝三菱電機産業システム株式会社 | 電力変換装置 |
| US8228046B2 (en) * | 2009-06-16 | 2012-07-24 | American Power Conversion Corporation | Apparatus and method for operating an uninterruptible power supply |
| US8508962B2 (en) | 2009-09-24 | 2013-08-13 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Power conversion apparatus |
| US8503201B2 (en) | 2009-12-03 | 2013-08-06 | Schneider Electric It Corporation | Transient clamping circuitry for voltage converter |
| US8860273B2 (en) * | 2009-12-28 | 2014-10-14 | Flyback Energy, Inc. | External field interaction motor |
| EP2520014A1 (en) * | 2009-12-28 | 2012-11-07 | Flyback Energy, Inc. | Controllable universal power supply with reactive power management |
| DE102010014142A1 (de) * | 2010-04-07 | 2011-10-13 | Alpitronic Gmbh | Kommutierungsverfahren, Kommutierungsschaltung und elektrischer Energiewandler |
| US8878389B2 (en) | 2011-01-11 | 2014-11-04 | Schneider Electric It Corporation | Method and apparatus for providing uninterruptible power |
| DE202011050665U1 (de) | 2011-07-07 | 2012-10-09 | Alpitronic Gmbh | Kommutierungsschaltung und elektrischer Energiewandler |
| US8884464B2 (en) | 2011-08-29 | 2014-11-11 | Schneider Electric It Corporation | Twin boost converter with integrated charger for UPS system |
| US9830410B2 (en) | 2011-12-22 | 2017-11-28 | Schneider Electric It Corporation | System and method for prediction of temperature values in an electronics system |
| CN104137105B (zh) | 2011-12-22 | 2017-07-11 | 施耐德电气It公司 | 关于瞬时事件对数据中心中的温度的影响分析 |
| JP2013215043A (ja) * | 2012-04-02 | 2013-10-17 | Fuji Electric Co Ltd | マルチレベル電力変換装置 |
| US8947163B2 (en) | 2012-05-02 | 2015-02-03 | Qualcomm Incorporated | Split capacitors scheme for suppressing overshoot voltage glitches in class D amplifier output stage |
| SE537227C2 (sv) * | 2012-07-06 | 2015-03-10 | Comsys Ab | Resonansomriktare |
| SE537080C2 (sv) | 2012-07-06 | 2014-12-30 | Comsys Ab | Förbättrat strömställarskydd för resonansomriktare |
| US10459464B2 (en) | 2012-09-03 | 2019-10-29 | Schneider Electric It Corporation | Method and apparatus for controlling distribution of power |
| EP2944016A2 (en) * | 2013-01-11 | 2015-11-18 | Alstom Technology Ltd | Voltage source converter |
| EP2800265A1 (en) * | 2013-05-03 | 2014-11-05 | ALSTOM Technology Ltd | Converter |
| WO2015069917A1 (en) * | 2013-11-07 | 2015-05-14 | Rompower Energy System, Inc. | Bridgeless pfc using single sided high frequency switching |
| EP2887529A1 (en) | 2013-12-23 | 2015-06-24 | Alstom Technology Ltd | Modular multilevel converter leg with flat-top PWM modulation, converter and hybrid converter topologies |
| FR3068547B1 (fr) * | 2017-06-30 | 2019-08-16 | Stmicroelectronics (Tours) Sas | Convertisseur ac/dc reversible a thyristors |
| US11469684B2 (en) * | 2020-06-11 | 2022-10-11 | Abb Schweiz Ag | Active damping of soft switching resonant converters |
| DE102022207036A1 (de) | 2022-07-11 | 2024-01-11 | Friedrich-Alexander-Universität Erlangen-Nürnberg, Körperschaft des öffentlichen Rechts | Verfahren zum Ansteuern und Schaltanordnung für einen mehrphasigen Zweipunkt-Wechselrichter sowie mehrphasiger Zweipunkt-Wechselrichter |
| EP4380035A1 (en) | 2022-11-30 | 2024-06-05 | Abb Schweiz Ag | Control apparatus for an arcp inverter |
| EP4451542A1 (en) | 2023-04-17 | 2024-10-23 | Abb Schweiz Ag | Arcp converter and control thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4173779A (en) * | 1978-12-08 | 1979-11-06 | Westinghouse Electric Corp. | Single-pole commutation circuit |
| SE7900490L (sv) * | 1979-01-19 | 1980-07-20 | Asea Ab | Vexelriktarkoppling |
| US4255783A (en) * | 1979-05-30 | 1981-03-10 | United Technologies Corporation | Selective commutation circuit for an inverter |
| US4286317A (en) * | 1979-08-16 | 1981-08-25 | Bbc Brown, Boveri & Co. Ltd. | Forced commutation power converter arrangement in reverse voltage free circuit configuration |
| US4336585A (en) * | 1980-12-23 | 1982-06-22 | United Technologies Corporation | Selective commutation for an inverter |
| US4730242A (en) * | 1986-09-25 | 1988-03-08 | Wisconsin Alumni Research Foundation | Static power conversion and apparatus having essentially zero switching losses |
| DE3743436C1 (de) * | 1987-12-21 | 1989-05-11 | Siemens Ag | Schaltentlasteter,verlustarmer Dreipunktwechselrichter |
-
1990
- 1990-09-17 US US07/583,910 patent/US5047913A/en not_active Expired - Lifetime
-
1991
- 1991-05-10 EP EP91909925A patent/EP0500818B1/en not_active Expired - Lifetime
- 1991-05-10 KR KR1019920701162A patent/KR100197825B1/ko not_active IP Right Cessation
- 1991-05-10 JP JP03509868A patent/JP3037415B2/ja not_active Expired - Lifetime
- 1991-05-10 DE DE69113981T patent/DE69113981T2/de not_active Expired - Fee Related
- 1991-05-10 ES ES91909925T patent/ES2079661T3/es not_active Expired - Lifetime
- 1991-05-10 WO PCT/US1991/003274 patent/WO1992005625A1/en active IP Right Grant
- 1991-05-10 BR BR919106078A patent/BR9106078A/pt not_active IP Right Cessation
- 1991-06-21 GR GR910100272A patent/GR1000904B/el not_active IP Right Cessation
- 1991-07-09 PT PT98263A patent/PT98263B/pt active IP Right Grant
- 1991-07-16 MX MX9100234A patent/MX9100234A/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PT98263B (pt) | 1999-01-29 |
| GR910100272A (en) | 1992-09-11 |
| KR920702569A (ko) | 1992-09-04 |
| JPH05502365A (ja) | 1993-04-22 |
| BR9106078A (pt) | 1993-02-02 |
| DE69113981T2 (de) | 1996-05-30 |
| MX9100234A (es) | 1992-06-05 |
| WO1992005625A1 (en) | 1992-04-02 |
| US5047913A (en) | 1991-09-10 |
| DE69113981D1 (de) | 1995-11-23 |
| JP3037415B2 (ja) | 2000-04-24 |
| GR1000904B (el) | 1993-03-16 |
| EP0500818A1 (en) | 1992-09-02 |
| KR100197825B1 (ko) | 1999-06-15 |
| ES2079661T3 (es) | 1996-01-16 |
| EP0500818B1 (en) | 1995-10-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BB1A | Laying open of patent application |
Effective date: 19930331 |
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| FG3A | Patent granted, date of granting |
Effective date: 19981002 |