GB1384156A - 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 polarity

Info

Publication number
GB1384156A
GB1384156A GB4919372A GB4919372A GB1384156A GB 1384156 A GB1384156 A GB 1384156A GB 4919372 A GB4919372 A GB 4919372A GB 4919372 A GB4919372 A GB 4919372A GB 1384156 A GB1384156 A GB 1384156A
Authority
GB
United Kingdom
Prior art keywords
circuit
coil
controlling
magnetic flux
polarity
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
Application number
GB4919372A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LENOIR RAOUL ETS
Original Assignee
LENOIR RAOUL ETS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LENOIR RAOUL ETS filed Critical LENOIR RAOUL ETS
Publication of GB1384156A publication Critical patent/GB1384156A/en
Expired legal-status Critical Current

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)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Electrical Variables (AREA)
  • Synchronous Machinery (AREA)
  • Ac-Ac Conversion (AREA)
  • Magnetic Treatment Devices (AREA)
GB4919372A 1971-11-19 1972-10-25 Device for controlling the excitation current in an excitation coil producing a magnetic flux of reversible polarity Expired GB1384156A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7141419A FR2161262A5 (es) 1971-11-19 1971-11-19

Publications (1)

Publication Number Publication Date
GB1384156A true GB1384156A (en) 1975-02-19

Family

ID=9086026

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4919372A Expired GB1384156A (en) 1971-11-19 1972-10-25 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 (es)
BE (1) BE790729A (es)
CH (1) CH564251A5 (es)
DD (1) DD100573A5 (es)
DE (1) DE2256521A1 (es)
ES (1) ES408768A1 (es)
FR (1) FR2161262A5 (es)
GB (1) GB1384156A (es)
IT (1) IT968995B (es)
LU (1) LU66439A1 (es)
NL (1) NL7215080A (es)
PL (1) PL81841B1 (es)
ZA (1) ZA727672B (es)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149597A (en) * 1980-09-11 1985-06-12 Electro Matic Prod Co Battery charge system
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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55106743A (en) * 1979-02-08 1980-08-15 Inoue Japax Res Inc Magnetic chuck
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 (de) * 1988-04-06 1989-10-19 Bodenseewerk Perkin Elmer Co Einrichtung zur erzeugung eines magnetfeldes in einem atomabsorptions-spektrometer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149597A (en) * 1980-09-11 1985-06-12 Electro Matic Prod Co Battery charge system
US7439713B2 (en) 2006-09-20 2008-10-21 Pratt & Whitney Canada Corp. Modulation control of power generation system
US7944187B2 (en) 2006-09-20 2011-05-17 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

Also Published As

Publication number Publication date
DE2256521A1 (de) 1973-05-24
DD100573A5 (es) 1973-09-20
AU4846672A (en) 1974-05-02
ES408768A1 (es) 1975-11-01
ZA727672B (en) 1974-06-26
FR2161262A5 (es) 1973-07-06
LU66439A1 (es) 1973-02-01
NL7215080A (es) 1973-05-22
CH564251A5 (es) 1975-07-15
PL81841B1 (es) 1975-10-31
BE790729A (fr) 1973-02-15
IT968995B (it) 1974-03-20

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Legal Events

Date Code Title Description
PS Patent sealed