US3437969A - Adjustable inductive apparatus - Google Patents

Adjustable inductive apparatus Download PDF

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Publication number
US3437969A
US3437969A US683685A US3437969DA US3437969A US 3437969 A US3437969 A US 3437969A US 683685 A US683685 A US 683685A US 3437969D A US3437969D A US 3437969DA US 3437969 A US3437969 A US 3437969A
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United States
Prior art keywords
winding
control
frame
windings
flux
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 - Lifetime
Application number
US683685A
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English (en)
Inventor
Josef Pfanzelt
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Individual
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Individual
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Publication date
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Publication of US3437969A publication Critical patent/US3437969A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/08—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
    • H01F29/10—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable part of magnetic circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F9/00—Magnetic amplifiers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H01F2029/143—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias with control winding for generating magnetic bias

Definitions

  • the illustrated apparatus is especially designed as an adjustable transformer, but can be used also as a variable choke if the control winding StIfiStZ and either the secondary winding Skl-SkZ or the primary winding Pr3- Pr4 are connected in series and fed with alternating current.
  • the different control possibilities and corresponding manner of working of the basic construction of the apparatus illustrated in FIG. 1 will be explained later with reference to FIGS. 4 to 21.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)
  • Coils Of Transformers For General Uses (AREA)
US683685A 1966-11-17 1967-11-16 Adjustable inductive apparatus Expired - Lifetime US3437969A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP40815A DE1280400B (de) 1966-11-17 1966-11-17 Induktive Stellvorrichtung

Publications (1)

Publication Number Publication Date
US3437969A true US3437969A (en) 1969-04-08

Family

ID=7377384

Family Applications (1)

Application Number Title Priority Date Filing Date
US683685A Expired - Lifetime US3437969A (en) 1966-11-17 1967-11-16 Adjustable inductive apparatus

Country Status (5)

Country Link
US (1) US3437969A (en)van)
BE (1) BE691679A (en)van)
CH (1) CH452689A (en)van)
DE (1) DE1280400B (en)van)
NL (2) NL6617545A (en)van)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031496A (en) * 1973-07-06 1977-06-21 Hitachi, Ltd. Variable inductor
US4371116A (en) * 1978-04-04 1983-02-01 Sage David M Variable reactance alignment detector and control

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6392521B1 (en) * 2000-10-12 2002-05-21 Clinton Instrument Company Variable inductance transformer with electronic control

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2460921A (en) * 1946-08-17 1949-02-08 Nat Cylinder Gas Co Magnetic control system
US3152311A (en) * 1957-11-08 1964-10-06 L R Power Corp Variable voltage transformer
US3281655A (en) * 1959-10-08 1966-10-25 Benjamin P Blasingame Inductive multi-speed resolver
US3368142A (en) * 1965-11-15 1968-02-06 Northrop Corp Self-testing variable transformer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1237216B (de) * 1964-06-22 1967-03-23 Josef Pfanzelt Transformator zum kontaktlosen sekundaerseitigen Steuern und Schalten

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2460921A (en) * 1946-08-17 1949-02-08 Nat Cylinder Gas Co Magnetic control system
US3152311A (en) * 1957-11-08 1964-10-06 L R Power Corp Variable voltage transformer
US3281655A (en) * 1959-10-08 1966-10-25 Benjamin P Blasingame Inductive multi-speed resolver
US3368142A (en) * 1965-11-15 1968-02-06 Northrop Corp Self-testing variable transformer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031496A (en) * 1973-07-06 1977-06-21 Hitachi, Ltd. Variable inductor
US4371116A (en) * 1978-04-04 1983-02-01 Sage David M Variable reactance alignment detector and control

Also Published As

Publication number Publication date
DE1280400B (de) 1968-10-17
BE691679A (en)van) 1967-05-29
NL6617545A (en)van) 1968-05-20
NL131902C (en)van)
CH452689A (de) 1968-03-15

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