GB879667A - Improvements in or relating to magnetic core circuits - Google Patents

Improvements in or relating to magnetic core circuits

Info

Publication number
GB879667A
GB879667A GB2296558A GB2296558A GB879667A GB 879667 A GB879667 A GB 879667A GB 2296558 A GB2296558 A GB 2296558A GB 2296558 A GB2296558 A GB 2296558A GB 879667 A GB879667 A GB 879667A
Authority
GB
United Kingdom
Prior art keywords
input
windings
cores
energized
winding
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
GB2296558A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe dElectronique et dAutomatisme SA
Original Assignee
Societe dElectronique et dAutomatisme 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 Societe dElectronique et dAutomatisme SA filed Critical Societe dElectronique et dAutomatisme SA
Publication of GB879667A publication Critical patent/GB879667A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
    • G11C19/02—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements
    • G11C19/04—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements using cores with one aperture or magnetic loop

Landscapes

  • Coils Or Transformers For Communication (AREA)

Abstract

879,667. Magnetic amplifiers. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. July 17, 1958 [July 24, 1957], No. 22965/58. Class 40 (9). Each stage of a cascade of back-to-back halfwave resetting magnetic amplifiers used as a stepping register has two input windings on each core. As shown in Fig. 3 the pairs of cores M1, M<SP>1</SP>1; M2, M<SP>1</SP>2; M3, M<SP>1</SP>3 have cross-connected pairs of input windings, n1, n<SP>1</SP>2 and n<SP>2</SP>, n<SP>1</SP>1; the parallel branches of each stage being energized by alternating current of a phase opposite to that of the preceding and subsequent stages. Input current to one pair of input windings n1, n<SP>1</SP>2 drives the cores M1, M<SP>1</SP>1 to saturation in one direction and the system is such that negligible current is at this time applied to input windings n2, n<SP>1</SP>1. Should input windings n2, n<SP>1</SP>1 be energized cores M1, M<SP>1</SP>1 are driven to saturation in the opposite direction and windings n1, n<SP>1</SP>2 are effectively unenergized. During a half-cycle after cores M1, M<SP>1</SP>1 have been set load windings N are energized, one load winding finding low impedance and driving its associated pair of input windings to the next stage, and the other finding high impedance which blocks the remaining pair of input windings. Cores M2, M<SP>1</SP>2, are therefore set and will control load current to the next stage in the same way as cores M1, M<SP>1</SP>1. By using three limbed cores, as shown in Fig. 3, with a centretapped winding on the centre limb the need for cross-connected windings is avoided as each half of the centre-tapped winding is an input winding capable of switching both outer limbs. The outputs of two back-to-back stages may be connected in common to supply input to a single subsequent stage (see Fig. 5). For this purpose it is necessary that an input to either or both terminals 10 and 11 should produce an output on terminal 15. This is achieved by making input windings n1 and n<SP>1</SP>2 of more turns than the input windings n2, n<SP>1</SP>1 so that when both sets of windings are energized the input to terminal 10 or 11 prevails. Output appears on terminal 14 only when input is applied to both terminals 12 and 13.
GB2296558A 1957-07-24 1958-07-17 Improvements in or relating to magnetic core circuits Expired GB879667A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR743985 1957-07-24

Publications (1)

Publication Number Publication Date
GB879667A true GB879667A (en) 1961-10-11

Family

ID=8704636

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2296558A Expired GB879667A (en) 1957-07-24 1958-07-17 Improvements in or relating to magnetic core circuits

Country Status (3)

Country Link
DE (1) DE1158113B (en)
FR (1) FR1179795A (en)
GB (1) GB879667A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1249344B (en) * 1957-10-12 1967-09-07 S.E.A. Societe d'Electronique et d'Automatisme, Courbevoie, Seine (Frankreich) Circuit arrangement for systems for processing binary information using magnetic circuits with an approximately rectangular hysteresis loop

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB706736A (en) * 1952-01-03 1954-04-07 British Tabulating Mach Co Ltd Improvements in or relating to electrical storage devices

Also Published As

Publication number Publication date
DE1158113B (en) 1963-11-28
FR1179795A (en) 1959-05-28

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