Classifications

• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03K—PULSE TECHNIQUE
  • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
  • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
  • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
  • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
  • H03K17/64—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors having inductive loads
• • 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
  • H01F7/1805—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current
  • H01F7/1827—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current by changing number of serially-connected turns or windings
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02D—CONTROLLING COMBUSTION ENGINES
  • F02D41/00—Electrical control of supply of combustible mixture or its constituents
  • F02D41/20—Output circuits, e.g. for controlling currents in command coils
  • F02D2041/2068—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements
  • F02D2041/2079—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements the circuit having several coils acting on the same anchor

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• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Dc-Dc Converters (AREA)
• X-Ray Techniques (AREA)
• Relay Circuits (AREA)
• Electronic Switches (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=24203805

Family Applications (1)

Country Status (4)

Cited By (1)

Families Citing this family (12)

Family Cites Families (3)

• 1966
  • 1966-05-23 US US552069A patent/US3456164A/en not_active Expired - Lifetime
• 1967
  • 1967-04-11 GB GB16431/67A patent/GB1110889A/en not_active Expired
  • 1967-05-20 DE DE19671588578 patent/DE1588578A1/de active Pending
  • 1967-05-22 FR FR1558288D patent/FR1558288A/fr not_active Expired

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