FI955566A0 - Vakavoitu tehomuunnin, jossa on kvantisoitu pulssiVakavoitu tehomuunnin, jossa on kvantisoitu pulssisuhde suhde - Google Patents
Vakavoitu tehomuunnin, jossa on kvantisoitu pulssiVakavoitu tehomuunnin, jossa on kvantisoitu pulssisuhde suhdeInfo
- Publication number
- FI955566A0 FI955566A0 FI955566A FI955566A FI955566A0 FI 955566 A0 FI955566 A0 FI 955566A0 FI 955566 A FI955566 A FI 955566A FI 955566 A FI955566 A FI 955566A FI 955566 A0 FI955566 A0 FI 955566A0
- Authority
- FI
- Finland
- Prior art keywords
- power converter
- quantized duty
- fastabilized
- ktor
- quantized
- 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
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC 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
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC 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
- H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators
- H02M3/157—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators with digital control
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC 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
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC 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
- H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1588—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load comprising at least one synchronous rectifier element
-
- 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
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0025—Arrangements for modifying reference values, feedback values or error values in the control loop of a converter
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/414,527 US5594324A (en) | 1995-03-31 | 1995-03-31 | Stabilized power converter having quantized duty cycle |
Publications (2)
Publication Number | Publication Date |
---|---|
FI955566A0 true FI955566A0 (fi) | 1995-11-17 |
FI955566A FI955566A (fi) | 1996-10-01 |
Family
ID=23641845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI955566A FI955566A (fi) | 1995-03-31 | 1995-11-17 | Vakavoitu tehomuunnin, jossa on kvantisoitu pulssisuhde |
Country Status (10)
Country | Link |
---|---|
US (1) | US5594324A (fi) |
EP (1) | EP0735656B1 (fi) |
JP (1) | JPH08294271A (fi) |
KR (1) | KR960036262A (fi) |
CN (1) | CN1061183C (fi) |
CA (1) | CA2162947A1 (fi) |
DE (1) | DE69616126T2 (fi) |
FI (1) | FI955566A (fi) |
HK (1) | HK1010431A1 (fi) |
TW (1) | TW288226B (fi) |
Families Citing this family (84)
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US5945820A (en) * | 1997-02-06 | 1999-08-31 | The Board Of Trustees Of The Leland Stanford Junior University | DC-DC switching regulator with switching rate control |
KR100580801B1 (ko) * | 1997-03-27 | 2006-09-27 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 디지털제어스위치-모드전압변환기 |
EP0922323B1 (en) * | 1997-03-27 | 2002-10-30 | Koninklijke Philips Electronics N.V. | Digitally controlled switched-mode voltage converter |
JP4014648B2 (ja) * | 1997-03-27 | 2007-11-28 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | デジタル制御切換モード電圧変換器 |
KR100426422B1 (ko) | 1997-04-02 | 2004-04-08 | 뱅 앤드 올루프센 파워하우스 에이/에스 | 펄스 변조 신호의 향상된 전력 증폭을 위한 펄스 기준형 제어 방법 및 시스템 |
US5815381A (en) * | 1997-06-06 | 1998-09-29 | Burr-Brown Corporation | Single-barrier closed loop DC-to-DC converter and method |
US5910743A (en) * | 1997-07-03 | 1999-06-08 | Power System Management, Inc. | High efficiency pulse width modulator |
US6005377A (en) * | 1997-09-17 | 1999-12-21 | Lucent Technologies Inc. | Programmable digital controller for switch mode power conversion and power supply employing the same |
JP2000116027A (ja) * | 1998-03-10 | 2000-04-21 | Fiderikkusu:Kk | 電源装置 |
JP3744680B2 (ja) * | 1998-03-31 | 2006-02-15 | 富士通株式会社 | 電源装置、および電源回路の制御方法 |
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US6222745B1 (en) * | 1999-10-19 | 2001-04-24 | Texas Instruments Incorporated | Digitally synthesized multiple phase pulse width modulation |
FR2803139B1 (fr) * | 1999-12-23 | 2007-12-21 | Delachaux Sa | Generateur de signal electrique a frequence variable, asservissement et moyens de calcul de faible cout |
US6204651B1 (en) * | 2000-04-18 | 2001-03-20 | Sigmatel, Inc. | Method and apparatus for regulating an output voltage of a switch mode converter |
US7209518B1 (en) | 2000-08-03 | 2007-04-24 | Mks Instruments, Inc. | Higher PWM resolution for switchmode power supply control |
US6714049B2 (en) | 2001-08-10 | 2004-03-30 | Shakti Systems, Inc. | Logic state transition sensor circuit |
CN1402416A (zh) * | 2001-12-03 | 2003-03-12 | 方虎堂 | 零电压转换数字功率变换器 |
EP1322029A1 (en) | 2001-12-18 | 2003-06-25 | STMicroelectronics N.V. | DC/DC converter with improved stability |
JP3576140B2 (ja) * | 2001-12-26 | 2004-10-13 | Tdk株式会社 | スイッチング電源装置用制御回路及びこれを用いたスイッチング電源装置 |
EP1324476B1 (en) * | 2001-12-27 | 2008-10-29 | Dialog Semiconductor GmbH | Converter with inductor and digital controlled timing |
US6548991B1 (en) * | 2002-01-19 | 2003-04-15 | National Semiconductor Corporation | Adaptive voltage scaling power supply for use in a digital processing component and method of operating the same |
JP3812739B2 (ja) * | 2002-05-28 | 2006-08-23 | 三菱電機株式会社 | モータ異常検出装置及び電動パワーステアリング制御装置 |
DE10231638B4 (de) * | 2002-07-12 | 2011-07-28 | Infineon Technologies AG, 81669 | Integrierte Schaltungsanordnung |
JP4141884B2 (ja) * | 2003-04-17 | 2008-08-27 | 株式会社リコー | 信号伝送装置 |
US7019505B2 (en) * | 2004-01-29 | 2006-03-28 | Enpirion, Inc. | Digital controller for a power converter employing selectable phases of a clock signal |
US8253195B2 (en) * | 2004-01-29 | 2012-08-28 | Enpirion, Inc. | Integrated circuit with a laterally diffused metal oxide semiconductor device and method of forming the same |
US8212317B2 (en) * | 2004-01-29 | 2012-07-03 | Enpirion, Inc. | Integrated circuit with a laterally diffused metal oxide semiconductor device and method of forming the same |
US8212315B2 (en) * | 2004-01-29 | 2012-07-03 | Enpirion, Inc. | Integrated circuit with a laterally diffused metal oxide semiconductor device and method of forming the same |
US7330017B2 (en) | 2004-01-29 | 2008-02-12 | Enpirion, Inc. | Driver for a power converter and a method of driving a switch thereof |
US8212316B2 (en) * | 2004-01-29 | 2012-07-03 | Enpirion, Inc. | Integrated circuit with a laterally diffused metal oxide semiconductor device and method of forming the same |
US7038438B2 (en) * | 2004-01-29 | 2006-05-02 | Enpirion, Inc. | Controller for a power converter and a method of controlling a switch thereof |
US7230302B2 (en) | 2004-01-29 | 2007-06-12 | Enpirion, Inc. | Laterally diffused metal oxide semiconductor device and method of forming the same |
US8253197B2 (en) * | 2004-01-29 | 2012-08-28 | Enpirion, Inc. | Integrated circuit with a laterally diffused metal oxide semiconductor device and method of forming the same |
US8253196B2 (en) | 2004-01-29 | 2012-08-28 | Enpirion, Inc. | Integrated circuit with a laterally diffused metal oxide semiconductor device and method of forming the same |
US7239194B2 (en) * | 2004-03-25 | 2007-07-03 | Integral Wave Technologies, Inc. | Trench capacitor power supply system and method |
US7190210B2 (en) * | 2004-03-25 | 2007-03-13 | Integral Wave Technologies, Inc. | Switched-capacitor power supply system and method |
WO2005114822A2 (en) * | 2004-05-19 | 2005-12-01 | Koninklijke Philips Electronics N.V. | Time discrete control of a continuous quantity |
US7214985B2 (en) | 2004-08-23 | 2007-05-08 | Enpirion, Inc. | Integrated circuit incorporating higher voltage devices and low voltage devices therein |
DE102004048706A1 (de) * | 2004-10-06 | 2006-04-20 | Siemens Ag | Verfahren und Vorrichtung zur Ermittlung eines mit einer Ditherfrequenz überlagerten PWM-Signals zur Steuerung eines Magnetventils |
US7211992B2 (en) * | 2004-12-08 | 2007-05-01 | Kiawe Forest Llc | Adaptive digital voltage regulator with Bresenham sequence generator |
US6992469B1 (en) * | 2004-12-08 | 2006-01-31 | Kiawe Forest, Llc | Digital voltage regulator for DC/DC converters |
EP1825340A4 (en) * | 2004-12-08 | 2008-10-08 | Forest Llc Kiawe | DIGITAL ADAPTIVE VOLTAGE REGULATOR |
US7221130B2 (en) * | 2005-01-05 | 2007-05-22 | Fyrestorm, Inc. | Switching power converter employing pulse frequency modulation control |
US7301488B2 (en) * | 2005-03-31 | 2007-11-27 | Silicon Laboratories Inc. | Digital PWM controller for preventing limit cycle oscillations |
JP4720372B2 (ja) * | 2005-08-24 | 2011-07-13 | 富士ゼロックス株式会社 | 電源装置 |
US7466254B2 (en) * | 2006-02-03 | 2008-12-16 | L&L Engineering Llc | Systems and methods for digital control utilizing oversampling |
US7342365B2 (en) * | 2006-02-09 | 2008-03-11 | Linear Technology Corp. | Systems and methods for reducing input current in photoflash chargers |
US7521907B2 (en) | 2006-03-06 | 2009-04-21 | Enpirion, Inc. | Controller for a power converter and method of operating the same |
US20070222463A1 (en) * | 2006-03-23 | 2007-09-27 | Qahouq Jaber A | Power conversion efficiency management |
US7893676B2 (en) * | 2006-07-20 | 2011-02-22 | Enpirion, Inc. | Driver for switch and a method of driving the same |
US7525296B2 (en) * | 2006-08-18 | 2009-04-28 | Bayview Ventures, Inc. | Spread spectrum power converter with duty-cycle error compensation |
US7948280B2 (en) * | 2006-10-20 | 2011-05-24 | Enpirion, Inc. | Controller including a sawtooth generator and method of operating the same |
JP4687656B2 (ja) * | 2007-01-24 | 2011-05-25 | トヨタ自動車株式会社 | 多相電圧変換装置、車両および多相電圧変換装置の制御方法 |
US7681090B2 (en) * | 2007-01-25 | 2010-03-16 | Solarbridge Technologies, Inc. | Ripple correlation control based on limited sampling |
TWI351177B (en) * | 2007-03-14 | 2011-10-21 | Nat Univ Tsing Hua | Control system capable of dynamically adjusting output voltage of voltage converter |
US7535276B2 (en) * | 2007-05-16 | 2009-05-19 | Semiconductor Components Industries, L.L.C. | Method of forming a PWM controller and structure therefor |
US7921312B1 (en) | 2007-09-14 | 2011-04-05 | National Semiconductor Corporation | System and method for providing adaptive voltage scaling with multiple clock domains inside a single voltage domain |
US7876080B2 (en) * | 2007-12-27 | 2011-01-25 | Enpirion, Inc. | Power converter with monotonic turn-on for pre-charged output capacitor |
JP5077827B2 (ja) * | 2008-03-17 | 2012-11-21 | 横河電機株式会社 | スイッチング電源装置 |
JP5262260B2 (ja) * | 2008-04-11 | 2013-08-14 | 株式会社リコー | 電圧可変dc−dcコンバータ |
US8692532B2 (en) * | 2008-04-16 | 2014-04-08 | Enpirion, Inc. | Power converter with controller operable in selected modes of operation |
US7679342B2 (en) * | 2008-04-16 | 2010-03-16 | Enpirion, Inc. | Power converter with power switch operable in controlled current mode |
US9246390B2 (en) | 2008-04-16 | 2016-01-26 | Enpirion, Inc. | Power converter with controller operable in selected modes of operation |
US8541991B2 (en) * | 2008-04-16 | 2013-09-24 | Enpirion, Inc. | Power converter with controller operable in selected modes of operation |
US8410769B2 (en) * | 2008-04-16 | 2013-04-02 | Enpirion, Inc. | Power converter with controller operable in selected modes of operation |
US8686698B2 (en) | 2008-04-16 | 2014-04-01 | Enpirion, Inc. | Power converter with controller operable in selected modes of operation |
US9548714B2 (en) * | 2008-12-29 | 2017-01-17 | Altera Corporation | Power converter with a dynamically configurable controller and output filter |
US8698463B2 (en) * | 2008-12-29 | 2014-04-15 | Enpirion, Inc. | Power converter with a dynamically configurable controller based on a power conversion mode |
JP2010200450A (ja) * | 2009-02-24 | 2010-09-09 | Fujitsu Semiconductor Ltd | 半導体集積回路および電源装置 |
US8525495B2 (en) | 2009-06-03 | 2013-09-03 | Lincoln Global, Inc. | Input current generator for buck-boost circuit control |
US8354827B2 (en) * | 2009-06-03 | 2013-01-15 | Lincoln Global, Inc. | Controller for a buck-boost circuit |
US8867295B2 (en) | 2010-12-17 | 2014-10-21 | Enpirion, Inc. | Power converter for a memory module |
US9389628B2 (en) * | 2012-04-20 | 2016-07-12 | Intel Deutschland Gmbh | Digitally controlled buck-boost regulator having a custom mapping controller |
CN103855134A (zh) | 2012-11-30 | 2014-06-11 | 英力股份有限公司 | 包括耦合至解耦合器件的半导体器件的装置 |
US9536938B1 (en) | 2013-11-27 | 2017-01-03 | Altera Corporation | Semiconductor device including a resistor metallic layer and method of forming the same |
US10020739B2 (en) | 2014-03-27 | 2018-07-10 | Altera Corporation | Integrated current replicator and method of operating the same |
US9673192B1 (en) | 2013-11-27 | 2017-06-06 | Altera Corporation | Semiconductor device including a resistor metallic layer and method of forming the same |
EP3123266A1 (en) * | 2014-03-25 | 2017-02-01 | IDT Europe GmbH | Power converter with dynamic voltage scaling |
JP2016025825A (ja) * | 2014-07-24 | 2016-02-08 | 株式会社東芝 | 電源回路 |
US10103627B2 (en) | 2015-02-26 | 2018-10-16 | Altera Corporation | Packaged integrated circuit including a switch-mode regulator and method of forming the same |
US9509217B2 (en) | 2015-04-20 | 2016-11-29 | Altera Corporation | Asymmetric power flow controller for a power converter and method of operating the same |
JP6558832B2 (ja) * | 2016-05-14 | 2019-08-14 | コーセル株式会社 | スイッチング電源装置 |
CN108233875B (zh) * | 2016-12-13 | 2021-07-06 | 台达电子工业股份有限公司 | 射频放大器及提高其效率的方法、以及射频电源供应器 |
JP7166179B2 (ja) * | 2019-01-25 | 2022-11-07 | 株式会社東芝 | 電源回路 |
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US3733540A (en) * | 1972-02-03 | 1973-05-15 | Motorola Inc | Switching regulator sweep starting protection circuit |
US4439821A (en) * | 1982-01-29 | 1984-03-27 | Varo, Inc. | DC to DC switching regulator with temperature compensated isolated feedback circuitry |
US4630187A (en) * | 1985-09-09 | 1986-12-16 | Sperry Corporation | Power converter with duty ratio quantization |
US4725940A (en) * | 1987-06-10 | 1988-02-16 | Unisys Corporation | Quantized duty ratio power sharing converters |
US4988942A (en) * | 1988-11-08 | 1991-01-29 | Spectra-Physics, Inc. | Switched resistor regulator control when transfer function includes discontinuity |
DE4122945A1 (de) * | 1991-07-11 | 1993-01-14 | Philips Patentverwaltung | Mikroprozessorgesteuerter gleichspannungswandler |
US5477132A (en) * | 1992-01-10 | 1995-12-19 | Space Systems/Loral, Inc. | Multi-sectioned power converter having current-sharing controller |
US5359280A (en) * | 1992-01-10 | 1994-10-25 | Space Systems/Loral | Bilateral power converter for a satellite power system |
US5258904A (en) * | 1992-04-23 | 1993-11-02 | Ford Motor Company | Dither control method of PWM inverter to improve low level motor torque control |
US5233287A (en) * | 1992-05-05 | 1993-08-03 | Space Systems/Loral | Current limiting bilateral converter having a ground referenced current sensor |
US5453921A (en) * | 1993-03-31 | 1995-09-26 | Thomson Consumer Electronics, Inc. | Feedback limited duty cycle switched mode power supply |
US5436820A (en) * | 1993-06-09 | 1995-07-25 | Eldec Corporation | Power converter with dual PWM control |
US5416481A (en) * | 1993-09-24 | 1995-05-16 | Advanced Micro Devices, Inc. | Analog-to-digital converter with multi-level dither current input |
-
1995
- 1995-03-31 US US08/414,527 patent/US5594324A/en not_active Expired - Lifetime
- 1995-11-15 CA CA002162947A patent/CA2162947A1/en not_active Abandoned
- 1995-11-17 FI FI955566A patent/FI955566A/fi unknown
- 1995-12-15 KR KR19950050655A patent/KR960036262A/ko active IP Right Grant
- 1995-12-28 JP JP7342507A patent/JPH08294271A/ja active Pending
-
1996
- 1996-01-04 TW TW085100028A patent/TW288226B/zh active
- 1996-01-17 CN CN96100849A patent/CN1061183C/zh not_active Expired - Fee Related
- 1996-03-28 DE DE69616126T patent/DE69616126T2/de not_active Expired - Fee Related
- 1996-03-28 EP EP96302185A patent/EP0735656B1/en not_active Expired - Lifetime
-
1998
- 1998-10-19 HK HK98111304A patent/HK1010431A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FI955566A (fi) | 1996-10-01 |
EP0735656B1 (en) | 2001-10-24 |
CA2162947A1 (en) | 1996-10-01 |
KR960036262A (fi) | 1996-10-28 |
EP0735656A2 (en) | 1996-10-02 |
HK1010431A1 (en) | 1999-06-17 |
US5594324A (en) | 1997-01-14 |
JPH08294271A (ja) | 1996-11-05 |
EP0735656A3 (en) | 1997-07-09 |
TW288226B (fi) | 1996-10-11 |
CN1061183C (zh) | 2001-01-24 |
DE69616126T2 (de) | 2002-07-04 |
DE69616126D1 (de) | 2001-11-29 |
CN1136234A (zh) | 1996-11-20 |
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