CH565435A5CH157773ACH157773ACH565435A5CH 565435 A5CH565435 A5CH 565435A5CH 157773 ACH157773 ACH 157773ACH 157773 ACH157773 ACH 157773ACH 565435 A5CH565435 A5CH 565435A5
Authority
CH
Switzerland
Application number
CH157773A
Original Assignee
Lucifer Sa
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 Lucifer SafiledCriticalLucifer Sa
Priority to CH157773ApriorityCriticalpatent/CH565435A5/xx
Priority to DE19742403394prioritypatent/DE2403394A1/de
Priority to FR7402992Aprioritypatent/FR2216620B3/fr
Priority to JP1440674Aprioritypatent/JPS49111159A/ja
Publication of CH565435A5publicationCriticalpatent/CH565435A5/xx
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
H01F7/1805—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current
H01F7/1838—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current by switching-in or -out impedance
G—PHYSICS
G05—CONTROLLING; REGULATING
G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
G05F3/02—Regulating voltage or current
G05F3/04—Regulating voltage or current wherein the variable is AC