GB777850A - Improvements in or relating to bistable magnetic devices - Google Patents
Improvements in or relating to bistable magnetic devicesInfo
- Publication number
- GB777850A GB777850A GB24273/54A GB2427354A GB777850A GB 777850 A GB777850 A GB 777850A GB 24273/54 A GB24273/54 A GB 24273/54A GB 2427354 A GB2427354 A GB 2427354A GB 777850 A GB777850 A GB 777850A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- coils
- transistor
- transistors
- core
- 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
- 239000000696 magnetic material Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000001172 regenerating effect Effects 0.000 abstract 1
- 230000001960 triggered effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/45—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of non-linear magnetic or dielectric devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
- H03K23/76—Pulse counters comprising counting chains; Frequency dividers comprising counting chains using magnetic cores or ferro-electric capacitors
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Magnetic Treatment Devices (AREA)
- Power Conversion In General (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
777,850. Magnetic storage devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 20, 1954 [Aug. 25, 1953], No. 24273/54. Class 38 (2). [Also in Group XXXIX] A bistable magnetic device comprises two similar series connected coils 2, 3 wound in opposite senses on a single core 1 of magnetic material with a rectangular hysteresis loop. The core is shown eight times in Fig. 3. The core is triggered from one remanent state to the opposite remanent state by a positive pulse in the grid of tube 10 in the anode circuit of which the coils are connected. The speed of operation is increased by using transistors in regenerative circuits. Eight coils 2 to 9, Fig. 3, are wound on the single core, coils 4 and 6 being connected in opposite senses to the bases of transistors 12, 13. If coil 2 is the operative coil, coil 4 responds by making the base of transistor 12 negative. The increase of current passed by the transistor through coil 5 aids coil 2 and provides positive feedback, making the transistor base more negative. Transistor 13 and coil 7 operate in the same way if coil 3 is operative. In a modification, the two oppositely wound coils 22, 23 are included in the base circuit of transistors 20, 21, Fig. 4, and are coupled to the anode of tube 17 by condensers.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US376491A US2710928A (en) | 1953-08-25 | 1953-08-25 | Magnetic control for scale of two devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB777850A true GB777850A (en) | 1957-06-26 |
Family
ID=23485224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24273/54A Expired GB777850A (en) | 1953-08-25 | 1954-08-20 | Improvements in or relating to bistable magnetic devices |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2710928A (en) |
| CA (1) | CA532757A (en) |
| DE (1) | DE965448C (en) |
| FR (1) | FR1114337A (en) |
| GB (1) | GB777850A (en) |
| NL (1) | NL190134A (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2899570A (en) * | 1959-08-11 | Switching circuit | ||
| US2899571A (en) * | 1959-08-11 | Switching circuit | ||
| US2870268A (en) * | 1953-10-12 | 1959-01-20 | George A Rubissow | Transistor controlled low level magnetic amplifier |
| DE1020672B (en) * | 1954-11-19 | 1957-12-12 | Philips Nv | Circuit for switching the current on and off through an inductive impedance |
| US3017084A (en) * | 1954-11-26 | 1962-01-16 | Raytheon Co | Magnetic core shift register |
| US2876438A (en) * | 1955-01-20 | 1959-03-03 | Burroughs Corp | Regenerative shift register |
| US2910594A (en) * | 1955-02-08 | 1959-10-27 | Ibm | Magnetic core building block |
| US2954481A (en) * | 1955-03-17 | 1960-09-27 | Sperry Rand Corp | Digital multivibrator |
| US3153778A (en) * | 1955-03-18 | 1964-10-20 | Rca Corp | Magnetic core binary devices |
| US2962700A (en) * | 1955-06-01 | 1960-11-29 | Gen Electric | Magnetic counter |
| US2795776A (en) * | 1955-06-03 | 1957-06-11 | Burroughs Corp | Binary counters |
| US2802202A (en) * | 1955-07-13 | 1957-08-06 | Sperry Rand Corp | Gating circuit |
| US2926339A (en) * | 1955-10-28 | 1960-02-23 | Ibm | Switching apparatus |
| GB845850A (en) * | 1955-12-19 | 1960-08-24 | Nat Res Dev | Improvements in or relating to electronic storage and switching circuits |
| US2876440A (en) * | 1955-12-19 | 1959-03-03 | Sperry Rand Corp | Pulse stretching amplifiers |
| BE549968A (en) * | 1956-07-31 | |||
| DE1019693B (en) * | 1957-02-23 | 1957-11-21 | Telefunken Gmbh | Receiver equipped with transistors for telegraphy messages with frequency shift keying |
| US2936384A (en) * | 1957-04-12 | 1960-05-10 | Hazeltine Research Inc | Six junction transistor signaltranslating system |
| US3134023A (en) * | 1958-04-11 | 1964-05-19 | Ibm | Protection of transistor circuits against predictable overloading |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2430457A (en) * | 1945-09-20 | 1947-11-11 | Bell Telephone Labor Inc | Key control sender |
| US2574438A (en) * | 1946-07-03 | 1951-11-06 | Rossi Bruno | Computer using magnetic amplifier |
| US2591406A (en) * | 1951-01-19 | 1952-04-01 | Transducer Corp | Pulse generating circuits |
| BE513097A (en) * | 1951-07-27 | |||
| US2654080A (en) * | 1952-06-19 | 1953-09-29 | Transducer Corp | Magnetic memory storage circuits and apparatus |
-
0
- NL NL190134D patent/NL190134A/xx unknown
- CA CA532757A patent/CA532757A/en not_active Expired
-
1953
- 1953-08-25 US US376491A patent/US2710928A/en not_active Expired - Lifetime
-
1954
- 1954-08-03 FR FR1114337D patent/FR1114337A/en not_active Expired
- 1954-08-20 GB GB24273/54A patent/GB777850A/en not_active Expired
- 1954-08-25 DE DEI9060A patent/DE965448C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL190134A (en) | |
| US2710928A (en) | 1955-06-14 |
| FR1114337A (en) | 1956-04-11 |
| DE965448C (en) | 1957-06-06 |
| CA532757A (en) | 1956-11-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB777850A (en) | Improvements in or relating to bistable magnetic devices | |
| USRE25262E (en) | Input | |
| US2825890A (en) | Electrical information storage equipment | |
| GB748558A (en) | Logical circuits embodying bistable magnetic storage elements | |
| GB760175A (en) | Magnetic core logical circuits | |
| GB835907A (en) | Improvements in or relating to systems comprising transistor memory elements | |
| US2825820A (en) | Enhancement amplifier | |
| GB730165A (en) | Improvements in or relating to magnetic storage devices | |
| US2920213A (en) | Transistor-magnetic core bi-stable circuit | |
| US2963688A (en) | Shift register circuits | |
| US3084263A (en) | Current switching through an inductive impedance | |
| GB836426A (en) | Improvements in magnetic storage elements | |
| US3038084A (en) | Counter memory system utilizing carrier storage | |
| US2809302A (en) | Bi-directional parallel magnetic amplifier | |
| GB796170A (en) | Improvements in or relating to methods utilizing and devices comprising a closed, ferro-magnetic circuit having a high remanence | |
| GB913287A (en) | Improvements in electrical circuits | |
| US3112471A (en) | Voltage controlled magnetic system | |
| US3003067A (en) | Pulse counters | |
| GB844850A (en) | Improvements in or relating to electronic storage and switching circuits | |
| US3380036A (en) | Shift register of the kind composed of storage cores | |
| GB818768A (en) | Improvements in or relating to transistor circuits | |
| US3121800A (en) | Pulse generating circuit | |
| US3114897A (en) | Magnetic shift register coupling loop | |
| GB858762A (en) | Improvements in magnetic memory devices | |
| US3299277A (en) | Parametric devices |