ES408768A1 - Device for controlling the excitation current in an excitation coil producing a magnetic flux of reversible polarity - Google Patents
Device for controlling the excitation current in an excitation coil producing a magnetic flux of reversible polarityInfo
- Publication number
- ES408768A1 ES408768A1 ES408768A ES408768A ES408768A1 ES 408768 A1 ES408768 A1 ES 408768A1 ES 408768 A ES408768 A ES 408768A ES 408768 A ES408768 A ES 408768A ES 408768 A1 ES408768 A1 ES 408768A1
- Authority
- ES
- Spain
- Prior art keywords
- magnetic flux
- excitation
- controlling
- excitation coil
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/003—Methods and devices for magnetising permanent magnets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/15—Devices for holding work using magnetic or electric force acting directly on the work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
- H01F7/1872—Bistable or bidirectional current devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/08—Electrical assemblies or electrical control devices for cranes, winches, capstans or electrical hoists
- B66C2700/087—Electrical assemblies or electrical control devices for electrically actuated grabs
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Automation & Control Theory (AREA)
- Synchronous Machinery (AREA)
- Ac-Ac Conversion (AREA)
- Magnetic Treatment Devices (AREA)
- Control Of Electrical Variables (AREA)
Abstract
Improvements in devices for controlling the excitation current of a coil that produces a magnetic flux of invertible polarity, which in particular allow saturating or desaturating a metal or magnetic alloy by reversing current in an excitation coil that produces a magnetic flux at will in said metal or alloy, characterized in that they comprise means for storing continuous electrical energy at a level adjustable at will and for providing this energy, at a level adjustable at will also and with one or the other of two opposite polarities, in the excitation coil to correlatively create the saturation or desaturation current according to said polarity. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7141419A FR2161262A5 (en) | 1971-11-19 | 1971-11-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES408768A1 true ES408768A1 (en) | 1975-11-01 |
Family
ID=9086026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES408768A Expired ES408768A1 (en) | 1971-11-19 | 1972-11-18 | Device for controlling the excitation current in an excitation coil producing a magnetic flux of reversible polarity |
Country Status (13)
Country | Link |
---|---|
AU (1) | AU4846672A (en) |
BE (1) | BE790729A (en) |
CH (1) | CH564251A5 (en) |
DD (1) | DD100573A5 (en) |
DE (1) | DE2256521A1 (en) |
ES (1) | ES408768A1 (en) |
FR (1) | FR2161262A5 (en) |
GB (1) | GB1384156A (en) |
IT (1) | IT968995B (en) |
LU (1) | LU66439A1 (en) |
NL (1) | NL7215080A (en) |
PL (1) | PL81841B1 (en) |
ZA (1) | ZA727672B (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55106743A (en) * | 1979-02-08 | 1980-08-15 | Inoue Japax Res Inc | Magnetic chuck |
GB2149597B (en) * | 1980-09-11 | 1985-11-13 | Electro Matic Prod Co | Battery charge system |
BG38909A1 (en) * | 1982-07-27 | 1986-03-14 | Makedonski | Method and device for acting on ferromagnetic materials |
GB8425120D0 (en) * | 1984-10-04 | 1984-11-07 | Vent Axia Ltd | Dc solenoid circuits |
DE3811446A1 (en) * | 1988-04-06 | 1989-10-19 | Bodenseewerk Perkin Elmer Co | DEVICE FOR GENERATING A MAGNETIC FIELD IN AN ATOMIC ABSORPTION SPECTROMETER |
US7439713B2 (en) | 2006-09-20 | 2008-10-21 | Pratt & Whitney Canada Corp. | Modulation control of power generation system |
US8076882B2 (en) | 2007-12-26 | 2011-12-13 | Pratt & Whitney Canada Corp. | Motor drive architecture with active snubber |
US8279648B2 (en) | 2008-03-20 | 2012-10-02 | Pratt & Whitney Canada Corp. | Power inverter and method |
-
0
- BE BE790729D patent/BE790729A/en unknown
-
1971
- 1971-11-19 FR FR7141419A patent/FR2161262A5/fr not_active Expired
-
1972
- 1972-10-17 IT IT30543/72A patent/IT968995B/en active
- 1972-10-25 GB GB4919372A patent/GB1384156A/en not_active Expired
- 1972-10-27 ZA ZA727672A patent/ZA727672B/en unknown
- 1972-11-02 AU AU48466/72A patent/AU4846672A/en not_active Expired
- 1972-11-06 PL PL1972158665A patent/PL81841B1/pl unknown
- 1972-11-07 CH CH1622372A patent/CH564251A5/xx not_active IP Right Cessation
- 1972-11-08 NL NL7215080A patent/NL7215080A/xx unknown
- 1972-11-09 LU LU66439A patent/LU66439A1/xx unknown
- 1972-11-17 DD DD166922A patent/DD100573A5/xx unknown
- 1972-11-17 DE DE2256521A patent/DE2256521A1/en active Pending
- 1972-11-18 ES ES408768A patent/ES408768A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1384156A (en) | 1975-02-19 |
PL81841B1 (en) | 1975-10-31 |
IT968995B (en) | 1974-03-20 |
FR2161262A5 (en) | 1973-07-06 |
BE790729A (en) | 1973-02-15 |
ZA727672B (en) | 1974-06-26 |
DD100573A5 (en) | 1973-09-20 |
NL7215080A (en) | 1973-05-22 |
DE2256521A1 (en) | 1973-05-24 |
AU4846672A (en) | 1974-05-02 |
LU66439A1 (en) | 1973-02-01 |
CH564251A5 (en) | 1975-07-15 |
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