SE314101B - - Google Patents
Info
- Publication number
- SE314101B SE314101B SE44967A SE44967A SE314101B SE 314101 B SE314101 B SE 314101B SE 44967 A SE44967 A SE 44967A SE 44967 A SE44967 A SE 44967A SE 314101 B SE314101 B SE 314101B
- Authority
- SE
- Sweden
- Prior art keywords
- drive wire
- drive
- voltages
- pulse
- transformer
- Prior art date
Links
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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Coils Or Transformers For Communication (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
1,209,665. Circuits employing bi-stable magnetic elements. TELEFONAKTIEBOLAGET L. M. ERICSSON. 11 Jan., 1968 [12 Jan., 1967], No. 1743/68. Heading H3B. In order to attenuate overshoot effects of drive current pulses in a matrix drive wire the drive current pulses are fed to one end of the matrix drive wire via the primary winding of the transformer, the secondary winding of which is connected between the other end of the drive wire and earth. In the arrangement of Fig. 4 pulse source I emits a voltage pulse U which appears across the primary and secondary windings of transformer T and since the capacitance to ground is uniformly distributed along the drive wire and the primary and secondary windings have equal numbers of turns a voltage distribution symmetrical to ground will be obtained. The overshoots of the drive current pulses due to the distributed inductance and capacitance to ground of the drive wire will be largest at the point A and since distributed capacitances and inductances of only half the drive wire are contributing to the production of overshoots the latter are reduced in magnitude. By connecting the drive wire as shown reverse voltages in the secondary winding induced at the end of the drive pulse are eliminated which voltages would otherwise produce a disturb pulse in the drive wire. Fig. 5 shows how a plurality of arrangements of Fig. 4 may be connected in series a disadvantage being that the voltages in the transformers T1, T2, T3 are successively decreasing. This may be overcome by using the arrangement of Fig. 6 in which transformer T is used in the same way as in Fig. 4 and toroidal cores Q1, Q2, Q3, Q4 are connected between sections of the matrix drive wire. Each section has one fifth of the voltage appearing across it and the voltages across the toroidal cores acting as single winding transformers are equal.
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE44967A SE314101B (en) | 1967-01-12 | 1967-01-12 | |
NO17073367A NO120039B (en) | 1967-01-12 | 1967-11-28 | |
FI322267A FI42840C (en) | 1967-01-12 | 1967-11-30 | Device for damping the over-oscillation flow of current pulses in the operating memory of the ring memory |
DE19671549108 DE1549108B2 (en) | 1967-01-12 | 1967-12-01 | CIRCUIT FOR CONTROLLING A CORE STORAGE WIRE WITH A CURRENT IMPULSE DAMPENED INTO AN OVERSHIP |
DK671567A DK112882B (en) | 1967-01-12 | 1967-12-29 | Apparatus for attenuating the overvoltage course by current pulses in a drive wire to a core bearing. |
FR1553193D FR1553193A (en) | 1967-01-12 | 1968-01-05 | |
BE709218D BE709218A (en) | 1967-01-12 | 1968-01-11 | |
GB174368A GB1209665A (en) | 1967-01-12 | 1968-01-11 | Arrangement for attenuation of the overshoot effect of current pulses supplied to interact with core memories |
NL6800506A NL6800506A (en) | 1967-01-12 | 1968-01-12 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE44967A SE314101B (en) | 1967-01-12 | 1967-01-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
SE314101B true SE314101B (en) | 1969-09-01 |
Family
ID=20256596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE44967A SE314101B (en) | 1967-01-12 | 1967-01-12 |
Country Status (9)
Country | Link |
---|---|
BE (1) | BE709218A (en) |
DE (1) | DE1549108B2 (en) |
DK (1) | DK112882B (en) |
FI (1) | FI42840C (en) |
FR (1) | FR1553193A (en) |
GB (1) | GB1209665A (en) |
NL (1) | NL6800506A (en) |
NO (1) | NO120039B (en) |
SE (1) | SE314101B (en) |
-
1967
- 1967-01-12 SE SE44967A patent/SE314101B/xx unknown
- 1967-11-28 NO NO17073367A patent/NO120039B/no unknown
- 1967-11-30 FI FI322267A patent/FI42840C/en active
- 1967-12-01 DE DE19671549108 patent/DE1549108B2/en active Pending
- 1967-12-29 DK DK671567A patent/DK112882B/en unknown
-
1968
- 1968-01-05 FR FR1553193D patent/FR1553193A/fr not_active Expired
- 1968-01-11 GB GB174368A patent/GB1209665A/en not_active Expired
- 1968-01-11 BE BE709218D patent/BE709218A/xx unknown
- 1968-01-12 NL NL6800506A patent/NL6800506A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE1549108B2 (en) | 1971-12-16 |
DK112882B (en) | 1969-01-27 |
FR1553193A (en) | 1969-01-10 |
FI42840C (en) | 1970-11-10 |
GB1209665A (en) | 1970-10-21 |
DE1549108A1 (en) | 1970-10-22 |
FI42840B (en) | 1970-08-03 |
BE709218A (en) | 1968-05-16 |
NL6800506A (en) | 1968-07-15 |
NO120039B (en) | 1970-08-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3377582A (en) | Magnetic toroidal core having successive windings with the pair of lead ends of eachwinding spaced from the pair of lead ends of each other winding | |
US2911630A (en) | Magnetic storage system | |
US3149313A (en) | Ferrite matrix storage device | |
US4212053A (en) | D.C. to D.C. Converter utilizing resonant inductor to neutralize capacitive losses | |
SE314101B (en) | ||
GB1027420A (en) | Apparatus for storing data in bistable magnetic cores | |
GB1161774A (en) | An Inductor on a Flat Insulating Substrate | |
GB1438470A (en) | Delay line device | |
GB1252165A (en) | ||
GB1248426A (en) | Improvements in or relating to circuits employing saturable reactors | |
GB1214119A (en) | Improvements in and relating to capacitive voltage transforming devices | |
SE7407322L (en) | ||
KR860002117A (en) | Coils with magnetic cores | |
GB900780A (en) | A coincident-current switching core matrix | |
US3156903A (en) | Signal delay circuit | |
GB976169A (en) | Improvements in data storage or code conversion arrays | |
JP2883466B2 (en) | Pulse generator | |
GB981906A (en) | Improvements in or relating to magnetic core switching arrays | |
GB1176079A (en) | Improvements in or relating to Electronic Switching Arrangements. | |
GB1006302A (en) | Improvements in or relating to magnetic core switches | |
GB1142590A (en) | Magnetic associative semi-permanent memory system | |
GB1195582A (en) | Selection Circuit for Magnetic Core Memories | |
CH491481A (en) | High voltage inductor coil without magnetic circuit | |
GB916687A (en) | Improvements in or relating to magnetic memory arrangements | |
GB1196815A (en) | Common Mode Choke for Two-Dimensional Memory Array. |