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GB1250935A - - Google Patents

Info

Publication number
GB1250935A
GB1250935A GB1250935DA GB1250935A GB 1250935 A GB1250935 A GB 1250935A GB 1250935D A GB1250935D A GB 1250935DA GB 1250935 A GB1250935 A GB 1250935A
Authority
GB
United Kingdom
Prior art keywords
regulator
impedance
flux coupling
resistor
short
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
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 filed Critical
Publication of GB1250935A publication Critical patent/GB1250935A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current 
    • G05F1/12—Regulating voltage or current  wherein the variable actually regulated by the final control device is AC
    • G05F1/32—Regulating voltage or current  wherein the variable actually regulated by the final control device is AC using magnetic devices having a controllable degree of saturation as final control devices
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current 
    • G05F1/12—Regulating voltage or current  wherein the variable actually regulated by the final control device is AC
    • G05F1/32—Regulating voltage or current  wherein the variable actually regulated by the final control device is AC using magnetic devices having a controllable degree of saturation as final control devices
    • G05F1/33—Regulating voltage or current  wherein the variable actually regulated by the final control device is AC using magnetic devices having a controllable degree of saturation as final control devices with plural windings through which current to be controlled is conducted
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current 
    • G05F1/12—Regulating voltage or current  wherein the variable actually regulated by the final control device is AC
    • G05F1/32—Regulating voltage or current  wherein the variable actually regulated by the final control device is AC using magnetic devices having a controllable degree of saturation as final control devices
    • G05F1/34—Regulating voltage or current  wherein the variable actually regulated by the final control device is AC using magnetic devices having a controllable degree of saturation as final control devices combined with discharge tubes or semiconductor devices
    • G05F1/38—Regulating voltage or current  wherein the variable actually regulated by the final control device is AC using magnetic devices having a controllable degree of saturation as final control devices combined with discharge tubes or semiconductor devices semiconductor devices only
    • 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
    • G05F3/06—Regulating voltage or current wherein the variable is AC using combinations of saturated and unsaturated inductive devices, e.g. combined with resonant circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Eletrric Generators (AREA)
  • Control Of Electrical Variables (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

1,250,935. Controlled non linear inductors. SELCO ELETTRO COSTRUZIONI S.A.S. 2 June, 1969 [7 June, 1968; 16 Nov., 1968], No. 27911/69. Heading H3B. [Also in Divisions G3 and H2] In a series voltage regulator having an input at L and an output at M, coils W 1 -W 3 are wound on a magnetic core, the voltage drop depends on the magnetic flux coupling with short circuited winding W 3 and hence on the relative currents in opposed windings W 1 , W 2 as determined by a diode D, or a transistor and variable resistor P shunting W 1 . When resistor P has a high value the currents in W 1 and W 2 are identical and there is no net flux coupling W 3 so that the regulator impedance is high. If resistor P has a low value, positive current half cycles are shunted through D and P and the asymmetric current flowing in W 1 produces an unbalanced flux coupling W 3 , the resulting current in W 3 causing the regulator impedance to drop. The increased current in W 1 and W 2 also reduces the impedance further due to saturation of the core. W 3 and its short circuiting diode may be replaced by a short circuit ring. In Fig. 2 (not shown) a switch (I, II) is provided which allows the regulator to be short circuited from L to M when maximum output power is required. In Fig. 3, the short circuited winding W 3 is included in the circuit which shunts W 1 .
GB1250935D 1968-06-07 1969-06-02 Expired GB1250935A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT1749968 1968-06-07
IT1744968 1968-06-07
IT2382768 1968-11-16

Publications (1)

Publication Number Publication Date
GB1250935A true GB1250935A (en) 1971-10-27

Family

ID=27272903

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1250935D Expired GB1250935A (en) 1968-06-07 1969-06-02

Country Status (4)

Country Link
US (1) US3568042A (en)
DE (1) DE1928538A1 (en)
FR (1) FR2010522A1 (en)
GB (1) GB1250935A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5398838A (en) * 1977-02-09 1978-08-29 Canon Inc Electrophotographic device
EP0357411A3 (en) * 1988-08-31 1990-10-31 Zytec Corporation Controlled-inductance regulator for switching power supplies
US5679457A (en) * 1995-05-19 1997-10-21 The Bergquist Company Thermally conductive interface for electronic devices
US20090096219A1 (en) * 2006-04-17 2009-04-16 Ted Annis Energy generation apparatus and methods based upon magnetic flux switching

Also Published As

Publication number Publication date
US3568042A (en) 1971-03-02
DE1928538A1 (en) 1969-12-11
FR2010522A1 (en) 1970-02-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees