GB776076A - Improvements in or relating to devices comprising a closed circuit of magnetic material having high retentivity - Google Patents
Improvements in or relating to devices comprising a closed circuit of magnetic material having high retentivityInfo
- Publication number
- GB776076A GB776076A GB22791/54A GB2279154A GB776076A GB 776076 A GB776076 A GB 776076A GB 22791/54 A GB22791/54 A GB 22791/54A GB 2279154 A GB2279154 A GB 2279154A GB 776076 A GB776076 A GB 776076A
- Authority
- GB
- United Kingdom
- Prior art keywords
- winding
- output
- correcting device
- input
- windings
- 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
- 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
- H03K17/80—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using non-linear magnetic devices; using non-linear dielectric devices
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
- G11C11/02—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
- G11C11/06—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using single-aperture storage elements, e.g. ring core; using multi-aperture plates in which each individual aperture forms a storage element
- G11C11/06007—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using single-aperture storage elements, e.g. ring core; using multi-aperture plates in which each individual aperture forms a storage element using a single aperture or single magnetic closed circuit
- G11C11/06078—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using single-aperture storage elements, e.g. ring core; using multi-aperture plates in which each individual aperture forms a storage element using a single aperture or single magnetic closed circuit using two or more such elements per bit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
- H03K19/16—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using saturable magnetic devices
Abstract
776,076. Static induction and apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 5, 1954 [Aug. 8, 1953], No. 22791/54. Class 38 (2). [Also in Groups XIX and XXXIX] In a device comprising input and output windings 2, 3, Fig. 3, which are coupled by a magnetic circuit 1 having high retentivity and a hysteresis loop shaped like a parallelogram but not rectangular, the voltages induced in the output winding by excursions of flux between the retention level of magnetization 11, Fig. 2, and the saturation level 13 in response to a magnetizing current pulse i, in the input winding are neutralized by opposing voltages of equal magnitude derived from the output winding 6 of a similarly constructed correcting device which has a low retentivity magnetic circuit 4. Only those transient induced voltages which have a magnitude determined by 13-12 and result from a reversal of magnetic polarity by a pulse are then effective at the output terminals CD, and the arrangement is thus functionally similar to a basic device in which the hysteresis loop of the magnetic circuit is substantially rectangular. The pulses must act simultaneously in winding 2 and in the input winding 5 of the correcting device, these windings preferably being connected in series as shown although they may be separately energized from synchronous sources. A single correcting device may be common to a number of basic devices, Fig. 5 (not shown), or to the cores 1<SP>1</SP>-9<SP>1</SP> of a matrix memory device, Fig. 6. In the latter case the correcting device neutralizes spurious outputs which arise from flux changes in unselected cores, the input winding 11 being connected in series with either all the column or row windings or with both as shown, while the output winding 12 is in series with the read-out winding 13. A correcting device comprising input and output windings 16, 17, Fig. 10, may also be used to increase the effectiveness of a non-contactmaking relay comprising a saturable transformer controlled over a winding 14.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL776076X | 1953-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB776076A true GB776076A (en) | 1957-06-05 |
Family
ID=19829986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22791/54A Expired GB776076A (en) | 1953-08-08 | 1954-08-05 | Improvements in or relating to devices comprising a closed circuit of magnetic material having high retentivity |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1009237B (en) |
| GB (1) | GB776076A (en) |
| NL (1) | NL180504B (en) |
-
0
- NL NLAANVRAGE7412661,A patent/NL180504B/en unknown
-
1954
- 1954-08-04 DE DEN9294A patent/DE1009237B/en active Pending
- 1954-08-05 GB GB22791/54A patent/GB776076A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1009237B (en) | 1957-05-29 |
| NL180504B (en) |
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