HK124497A - Power source circuit - Google Patents
Power source circuitInfo
- Publication number
- HK124497A HK124497A HK124497A HK124497A HK124497A HK 124497 A HK124497 A HK 124497A HK 124497 A HK124497 A HK 124497A HK 124497 A HK124497 A HK 124497A HK 124497 A HK124497 A HK 124497A
- Authority
- HK
- Hong Kong
- Prior art keywords
- power source
- source circuit
- circuit
- power
- source
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F5/00—Systems for regulating electric variables by detecting deviations in the electric input to the system and thereby controlling a device within the system to obtain a regulated output
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/59—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices including plural semiconductor devices as final control devices for a single load
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/62—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using bucking or boosting dc sources
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Dc-Dc Converters (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Direct Current Feeding And Distribution (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13302089 | 1989-05-26 | ||
JP13301989 | 1989-05-26 | ||
JP12260690 | 1990-05-11 | ||
PCT/JP1990/000672 WO1990014625A1 (en) | 1989-05-26 | 1990-05-25 | Power source circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
HK124497A true HK124497A (en) | 1997-09-12 |
Family
ID=27314478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK124497A HK124497A (en) | 1989-05-26 | 1997-06-26 | Power source circuit |
Country Status (6)
Country | Link |
---|---|
US (1) | US5323171A (ja) |
EP (1) | EP0434841B1 (ja) |
KR (1) | KR0151839B1 (ja) |
DE (1) | DE69023751T2 (ja) |
HK (1) | HK124497A (ja) |
WO (1) | WO1990014625A1 (ja) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5815133A (en) * | 1992-11-17 | 1998-09-29 | Canon Kabushiki Kaisha | Display apparatus |
JP3144166B2 (ja) * | 1992-11-25 | 2001-03-12 | ソニー株式会社 | 低振幅入力レベル変換回路 |
US7068264B2 (en) | 1993-11-19 | 2006-06-27 | Hitachi, Ltd. | Flat display panel having internal power supply circuit for reducing power consumption |
GB2285164B (en) * | 1993-12-22 | 1997-12-10 | Seiko Epson Corp | Liquid-crystal display system and power supply method |
TW277111B (ja) * | 1994-04-20 | 1996-06-01 | Hitachi Seisakusyo Kk | |
US5949397A (en) * | 1994-08-16 | 1999-09-07 | Semiconductor Energy Laboratory Co., Ltd. | Peripheral driver circuit of Liquid crystal electro-optical device |
JPH0895682A (ja) * | 1994-09-29 | 1996-04-12 | Canon Inc | 電子機器 |
KR0147491B1 (ko) * | 1995-05-17 | 1998-12-01 | 김주용 | 엘씨디 전원 순차 제어장치 |
EP0762376A3 (en) * | 1995-08-09 | 1997-11-12 | Sanyo Electric Co. Ltd | Drive circuit for a liquid crystal display device |
KR0154799B1 (ko) * | 1995-09-29 | 1998-12-15 | 김광호 | 킥백전압을 감소시킨 박막 트랜지스터 액정 표시장치의 구동장치 |
JPH1114961A (ja) * | 1997-04-28 | 1999-01-22 | Toshiba Microelectron Corp | 液晶駆動用回路 |
JP3887093B2 (ja) * | 1998-01-29 | 2007-02-28 | 株式会社 沖マイクロデザイン | 表示装置 |
JP3412131B2 (ja) | 1998-06-23 | 2003-06-03 | 株式会社日立製作所 | 液晶表示装置 |
JP3584830B2 (ja) | 1999-03-30 | 2004-11-04 | セイコーエプソン株式会社 | 半導体装置並びにそれを用いた液晶装置及び電子機器 |
TWI277057B (en) * | 2000-10-23 | 2007-03-21 | Semiconductor Energy Lab | Display device |
US6927753B2 (en) | 2000-11-07 | 2005-08-09 | Semiconductor Energy Laboratory Co., Ltd. | Display device |
KR100456987B1 (ko) * | 2001-04-10 | 2004-11-10 | 가부시키가이샤 히타치세이사쿠쇼 | 표시 데이터를 표시하기 위한 표시 장치 및 표시 구동 장치 |
KR100438968B1 (ko) * | 2001-12-31 | 2004-07-03 | 엘지.필립스 엘시디 주식회사 | 액정 패널의 전원공급 장치 |
KR100486281B1 (ko) * | 2002-11-16 | 2005-04-29 | 삼성전자주식회사 | 소비전력을 줄이는 에스티엔(Super TvistNematic) 액정 표시 장치 구동 회로 |
JP4530709B2 (ja) * | 2004-04-21 | 2010-08-25 | Hoya株式会社 | 一定電圧を供給可能な電源回路 |
KR100539264B1 (ko) * | 2004-05-15 | 2005-12-27 | 삼성전자주식회사 | 전원 전압 제거 감지 회로 및 디스플레이 장치 |
JP2006166581A (ja) * | 2004-12-07 | 2006-06-22 | Seiko Epson Corp | 電源装置 |
JP4686222B2 (ja) * | 2005-03-17 | 2011-05-25 | 株式会社東芝 | 半導体装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4015420A (en) * | 1976-05-03 | 1977-04-05 | Hughes Aircraft Company | Battery select circuitry and level translator for a digital watch |
JPS5643575A (en) * | 1979-09-18 | 1981-04-22 | Seiko Instr & Electronics Ltd | Electronic clock |
JPS5658746A (en) * | 1979-10-19 | 1981-05-21 | Casio Computer Co Ltd | Power source supply system |
JPS56125683A (en) * | 1980-03-10 | 1981-10-02 | Ricoh Elemex Corp | Power source device for electronic watch |
JPS56153885A (en) * | 1980-04-30 | 1981-11-28 | Nec Corp | Transistor circuit |
JPS576384A (en) * | 1980-06-13 | 1982-01-13 | Hitachi Ltd | Power source circuit and electronic watch using this |
JPS5731333A (en) * | 1980-07-31 | 1982-02-19 | Suwa Seikosha Kk | Power source circuit system |
US4371269A (en) * | 1980-09-09 | 1983-02-01 | Bulova Watch Co., Inc. | D-C Voltage converter for a wristwatch |
JPS57211087A (en) * | 1981-06-22 | 1982-12-24 | Seiko Instr & Electronics Ltd | Boosting circuit of electronic timepiece element |
JPS5938558A (ja) * | 1982-08-25 | 1984-03-02 | Matsushita Electric Works Ltd | 貯湯槽 |
JP2549098B2 (ja) * | 1986-07-08 | 1996-10-30 | 株式会社東芝 | 電子会議システムの伝送制御装置 |
JPS6327747A (ja) * | 1986-07-21 | 1988-02-05 | Takigawa Kogyo Kk | 磁気探傷機オフライン較正装置 |
JPS63277470A (ja) * | 1987-05-06 | 1988-11-15 | Fuji Electric Co Ltd | 発電システム |
-
1990
- 1990-05-25 KR KR1019910700072A patent/KR0151839B1/ko not_active IP Right Cessation
- 1990-05-25 EP EP90907485A patent/EP0434841B1/en not_active Expired - Lifetime
- 1990-05-25 WO PCT/JP1990/000672 patent/WO1990014625A1/ja active IP Right Grant
- 1990-05-25 DE DE69023751T patent/DE69023751T2/de not_active Expired - Fee Related
-
1993
- 1993-09-10 US US08/119,884 patent/US5323171A/en not_active Expired - Lifetime
-
1997
- 1997-06-26 HK HK124497A patent/HK124497A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR0151839B1 (ko) | 1998-12-15 |
WO1990014625A1 (en) | 1990-11-29 |
KR920701892A (ko) | 1992-08-12 |
DE69023751D1 (de) | 1996-01-04 |
EP0434841B1 (en) | 1995-11-22 |
EP0434841A4 (en) | 1992-12-09 |
EP0434841A1 (en) | 1991-07-03 |
US5323171A (en) | 1994-06-21 |
DE69023751T2 (de) | 1996-06-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4906938B1 (en) | Power circuit locator | |
EP0483852A3 (en) | Power source circuit | |
EP0487732A4 (en) | Light-emitting power source circuit | |
GB2204455B (en) | Switching power source device | |
EP0440245A3 (en) | Power source circuit | |
GB2226922B (en) | Circuit | |
HK124497A (en) | Power source circuit | |
EP0490639A3 (en) | Switching power source | |
GB2225497B (en) | Switching power source device | |
GB2168865B (en) | Power source circuit | |
EP0483537A3 (en) | Current source circuit | |
EP0314801A4 (en) | Power source regeneration circuit | |
HUT55934A (en) | Circuit arrangement | |
EP0436324A3 (en) | Power monitoring circuit | |
EP0321023A3 (en) | Circuit arrangement for a power source | |
EP0537739A3 (en) | Power circuit | |
GB2231184B (en) | Power source voltage circuit | |
GB2265776B (en) | Power source switch circuit | |
EP0411855A3 (en) | Power control circuit | |
GB2238635B (en) | Electrical power sources | |
EP0414029A3 (en) | Constant-current regulated power circuit | |
GB2186140B (en) | Current source circuit | |
GB8905202D0 (en) | Power operated device | |
GB8909319D0 (en) | Electrical components | |
GB8822781D0 (en) | Power circuit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PF | Patent in force | ||
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20080525 |