GB715610A - Improvements in or relating to variable inductive elements having saturable cores - Google Patents
Improvements in or relating to variable inductive elements having saturable coresInfo
- Publication number
- GB715610A GB715610A GB2309350A GB2309350A GB715610A GB 715610 A GB715610 A GB 715610A GB 2309350 A GB2309350 A GB 2309350A GB 2309350 A GB2309350 A GB 2309350A GB 715610 A GB715610 A GB 715610A
- Authority
- GB
- United Kingdom
- Prior art keywords
- winding
- flux
- leg
- core
- transductor
- 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
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
- H01F29/08—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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
715,610. Magnetic amplifiers. GENERAL ELECTRIC CO., Ltd., and WILLIAMS, C. E. Sept. 20, 1951 [Sept. 20, 1950], No. 23093/50. Class 40 (4) [Also in Group XXXV] To increase the range of inductance variation in the main controlled A.C. winding obtainable with a given range of direct current through the controlling saturating D.C. winding of a transductor such as for discharge lamp dimming circuits, which transductor has a threelegged magnetic core of stacked laminations upon which the windings are so arranged that there is substantially eliminated from the centre leg either the D.C. flux or A.C. flux of fundamental frequency, an additional but separate body of magnetic material is provided for'that part of the core which carries all the D.C. flux but none or only part of the A.C. flux thereby increasing the cross-sectional area of such part. As shown, the additional body 9 of stacked laminations is provided on the centre leg 2 which carries the saturating winding DC, while the outer legs 1, 3 of the core 4 carry the main winding which is split into two serially connected parts AC1, AC2 so directed that their magnetic flux flows through the core yokes 5, 6 but not through the centre leg 2. The body 9 alternatively may be so disposed as to increase the leg width, or both the width and the stack thickness. In other winding arrangements, the A.C. winding may be in two parallel connected parts or the D.C. winding may be in two series connected parts also disposed on the outer legs but so directed that the flux of each part flows through the centre leg. Alternatively the arrangement and direction of the two windings may be the opposite of that shown, in which case the body 9 is added only to one outer leg. Variation of the number of laminations in the body 9 may provide means for adjusting the characteristic of the transductor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2309350A GB715610A (en) | 1950-09-20 | 1950-09-20 | Improvements in or relating to variable inductive elements having saturable cores |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2309350A GB715610A (en) | 1950-09-20 | 1950-09-20 | Improvements in or relating to variable inductive elements having saturable cores |
Publications (1)
Publication Number | Publication Date |
---|---|
GB715610A true GB715610A (en) | 1954-09-15 |
Family
ID=10189999
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2309350A Expired GB715610A (en) | 1950-09-20 | 1950-09-20 | Improvements in or relating to variable inductive elements having saturable cores |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB715610A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2219437A (en) * | 1988-05-21 | 1989-12-06 | Eev Ltd | Transformer winding and circuit arrangement |
WO1999060585A1 (en) * | 1998-05-18 | 1999-11-25 | Nmb (Usa), Inc. | Variable inductor |
-
1950
- 1950-09-20 GB GB2309350A patent/GB715610A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2219437A (en) * | 1988-05-21 | 1989-12-06 | Eev Ltd | Transformer winding and circuit arrangement |
GB2219437B (en) * | 1988-05-21 | 1992-05-27 | Eev Ltd | Circuit arrangements |
WO1999060585A1 (en) * | 1998-05-18 | 1999-11-25 | Nmb (Usa), Inc. | Variable inductor |
US6317021B1 (en) | 1998-05-18 | 2001-11-13 | Nmb (Usa) Inc. | Variable inductor |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1219217A (en) | Constant voltage transformer | |
GB1385224A (en) | Electric transformer | |
GB661053A (en) | Improvements in and relating to saturable reactor magnetic amplifiers | |
GB688395A (en) | Improvements in and relating to magnetic amplifier circuits | |
US2657281A (en) | Electromagnetic audio amplifier | |
GB914857A (en) | A magnetic core for inductive devices | |
GB715610A (en) | Improvements in or relating to variable inductive elements having saturable cores | |
JPS5623723A (en) | On-load voltage regulating transformer | |
GB738886A (en) | Improvements in and relating to saturable reactors | |
JPS5796513A (en) | Inductor | |
GB594626A (en) | Improvements in and relating to circuits for electric discharge lamps | |
GB1407594A (en) | High voltage converter apparatus | |
GB863403A (en) | Improvements in or relating to interphase transformers | |
GB1072974A (en) | Improvements in or relating to electric circuit arrangements including inductive elements | |
GB851814A (en) | Improvements in or relating to inductances | |
GB611810A (en) | Improvements in or relating to the control of alternating currents in parallel-connected load-circuits | |
GB412545A (en) | Improvements relating to the voltage regulation of alternating current systems | |
JPS55132025A (en) | Compensating current transformer | |
GB671044A (en) | Improvements in and relating to electric voltage regulators | |
GB616286A (en) | Improvements in or relating to electrical voltage regulating arrangements | |
GB507837A (en) | Improvements relating to alternating current voltage regulators | |
GB455190A (en) | Method of regulating radio sets and the like | |
GB802209A (en) | Means for reducing or nullifying the minimum output current of magnetic amplifiers | |
GB661340A (en) | Improvements in and relating to electric transformers | |
GB616428A (en) | Improvements in and relating to electric transformers |