BR9002897A - Circulo de fornecimento de energia e circuito para energisar uma valvula selenoide - Google Patents
Circulo de fornecimento de energia e circuito para energisar uma valvula selenoideInfo
- Publication number
- BR9002897A BR9002897A BR909002897A BR9002897A BR9002897A BR 9002897 A BR9002897 A BR 9002897A BR 909002897 A BR909002897 A BR 909002897A BR 9002897 A BR9002897 A BR 9002897A BR 9002897 A BR9002897 A BR 9002897A
- Authority
- BR
- Brazil
- Prior art keywords
- energizing
- circuit
- energy supply
- supply circle
- selenoid valve
- Prior art date
Links
Classifications
-
- 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
- G05F1/565—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 sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor
- G05F1/569—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 sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Electrostatic Spraying Apparatus (AREA)
- Control Of Voltage And Current In General (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
- Emergency Protection Circuit Devices (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/369,024 US4979067A (en) | 1989-06-20 | 1989-06-20 | Voltage and current limiting power supply |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9002897A true BR9002897A (pt) | 1991-08-20 |
Family
ID=23453745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR909002897A BR9002897A (pt) | 1989-06-20 | 1990-06-20 | Circulo de fornecimento de energia e circuito para energisar uma valvula selenoide |
Country Status (6)
Country | Link |
---|---|
US (1) | US4979067A (pt) |
EP (1) | EP0404400A3 (pt) |
JP (1) | JPH0330005A (pt) |
AU (1) | AU640656B2 (pt) |
BR (1) | BR9002897A (pt) |
CA (1) | CA1313690C (pt) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4806040A (en) * | 1987-02-12 | 1989-02-21 | Cummins Engine Company, Inc. | Ceramic ball and socket joint |
US4966108A (en) * | 1989-04-28 | 1990-10-30 | Cummins Engine Company, Inc. | Sintered ceramic ball and socket joint assembly |
JP2993210B2 (ja) * | 1991-09-10 | 1999-12-20 | 松下電器産業株式会社 | 電源回路の保護装置 |
DE4433045A1 (de) * | 1994-09-16 | 1996-03-21 | Bosch Gmbh Robert | Elektronische Einrichtung |
EP0782235B1 (en) * | 1995-12-29 | 2001-11-14 | STMicroelectronics S.r.l. | Protection method for power transistors, and corresponding circuit |
FR2769142B1 (fr) * | 1997-09-29 | 1999-12-17 | Sgs Thomson Microelectronics | Circuit de protection associable a un filtre |
EP1166420B1 (de) * | 1999-03-31 | 2003-05-07 | Pepperl + Fuchs Gmbh | Sicherheitsbarriere zum begrenzen von strom und spannung |
US6397322B1 (en) * | 2000-03-31 | 2002-05-28 | Schneider Automation, Inc. | Integrated intrinsically safe input-output module |
US20070125798A1 (en) * | 2005-12-02 | 2007-06-07 | Mcguire Kent | Spray booth and method for coating the human body with sunscreen or the like |
JP4792557B2 (ja) * | 2006-03-28 | 2011-10-12 | 独立行政法人日本原子力研究開発機構 | コンテナ |
GB0610202D0 (en) * | 2006-05-23 | 2006-07-05 | Pepperl & Fuchs Gb Ltd | Electrical barrier |
JP4864622B2 (ja) * | 2006-09-27 | 2012-02-01 | 株式会社ケーヒン | 誘導性負荷の駆動装置 |
TWM313372U (en) * | 2006-11-01 | 2007-06-01 | Polytronics Technology Corp | Over-current and over-voltage protection assembly apparatus |
JP4786735B2 (ja) * | 2009-08-10 | 2011-10-05 | 中国電力株式会社 | 気密判定装置及び気密判定方法 |
JP5545511B2 (ja) | 2012-05-23 | 2014-07-09 | 横河電機株式会社 | バルブ遠隔操作装置 |
DE102013215077A1 (de) * | 2013-08-01 | 2015-02-05 | Siemens Aktiengesellschaft | Feldgerät zur Prozessinstrumentierung |
JP6007922B2 (ja) * | 2014-01-07 | 2016-10-19 | 横河電機株式会社 | 接点信号変換装置 |
JP6476835B2 (ja) * | 2014-06-13 | 2019-03-06 | 横河電機株式会社 | 信号変換装置 |
US10670054B2 (en) * | 2017-10-25 | 2020-06-02 | Dresser, Llc | Constructing valve positioners for hazardous areas |
US10749426B1 (en) | 2019-04-11 | 2020-08-18 | Graco Minnesota Inc. | Trapezoidal power-supply barrier between hazardous and normal locations |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3678370A (en) * | 1970-10-30 | 1972-07-18 | Forbro Design Corp | Voltage limiting circuit for constant current power supplies |
JPS5239717Y2 (pt) * | 1972-04-14 | 1977-09-08 | ||
IT1055625B (it) * | 1975-10-09 | 1982-01-11 | Indesit | Circuito di alimentazione stabiliz zato |
US4099216A (en) * | 1976-11-12 | 1978-07-04 | Westinghouse Electric Corp. | Fuseless intrinsic safety barrier |
US4412265A (en) * | 1981-11-27 | 1983-10-25 | Tokheim Corporation | Intrinsic barrier |
US4485427A (en) * | 1982-04-19 | 1984-11-27 | Ransburg Corporation | Fold-back power supply |
GB8722679D0 (en) * | 1987-09-26 | 1987-11-04 | Measurement Tech Ltd | Electrical safety barriers |
-
1989
- 1989-06-20 US US07/369,024 patent/US4979067A/en not_active Expired - Fee Related
- 1989-09-08 CA CA000610702A patent/CA1313690C/en not_active Expired - Fee Related
-
1990
- 1990-06-04 AU AU56258/90A patent/AU640656B2/en not_active Ceased
- 1990-06-07 EP EP19900306224 patent/EP0404400A3/en not_active Withdrawn
- 1990-06-18 JP JP2159600A patent/JPH0330005A/ja active Pending
- 1990-06-20 BR BR909002897A patent/BR9002897A/pt unknown
Also Published As
Publication number | Publication date |
---|---|
AU640656B2 (en) | 1993-09-02 |
EP0404400A3 (en) | 1991-08-07 |
CA1313690C (en) | 1993-02-16 |
AU5625890A (en) | 1991-01-03 |
EP0404400A2 (en) | 1990-12-27 |
US4979067A (en) | 1990-12-18 |
JPH0330005A (ja) | 1991-02-08 |
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