GB856014A - Improvements in or relating to electric gating devices - Google Patents
Improvements in or relating to electric gating devicesInfo
- Publication number
- GB856014A GB856014A GB11381/57A GB1138157A GB856014A GB 856014 A GB856014 A GB 856014A GB 11381/57 A GB11381/57 A GB 11381/57A GB 1138157 A GB1138157 A GB 1138157A GB 856014 A GB856014 A GB 856014A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- core
- windings
- electrodes
- pulse
- 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
- H03K17/82—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 the devices being transfluxors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/002—Gyrators
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Coils Or Transformers For Communication (AREA)
- Measuring Magnetic Variables (AREA)
Abstract
856,014. Circuits employing bi-stable magnetic elements. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 8, 1957 [April 11, 1956], No. 11381/57. Class 40 (9). [Also in Groups XXXVI and XL (c)] In an electrical gating device comprising a plate of material exhibiting a Hall or Gauss effect, a memory property is obtained by placing the plate in the air-gap of a core of soft magnetic material of considerable remanence, and by providing the core with a control winding, a pulse through which produces a magnetic field capable of maintaining the transmission of a signal via the plate until the field is expunged by a pulse supplied to an erasing winding on the core. As shown, Fig. 1, an annular ferrite core is composed of two sections 1, 1<SP>1</SP>, and a Hall-plate 2 of germanium is arranged completely to occupy an air-gap in the core. To the plate are attached two pairs of electrodes (not shown) the paths between the electrodes of each pair being perpendicular to one another and to the direction of a magnetic field through the plate induced by a pulse supplied to a control winding 5. A signal applied to one pair of electrodes will be transmitted to the second pair of electrodes while the field exists. An aperture 3 divides the core into two equal branches for part of its length, each branch being surrounded by a winding 4 such that an erasing pulse therethrough magnetizes the two branches to saturation in opposite directions. Fig. 4 shows the circuit of a " gyrator " gating device in which a square Hall-plate 2 is disposed in the air-gap of a D-shaped core (not shown), comprising a bar portion and a semi-circular portion on which are wound one or two control windings and an erasing winding. Pairs of electrodes 6, 6<SP>1</SP> and 7, 7<SP>1</SP> on the plate are connected to pairs of terminals 9, 91 and 10, 101 respectively, and each electrode is also connected to the terminal associated with the corresponding electrode of the other pair through a resistor 12 or 12<SP>1</SP>. The direction of transmission of signals through the plate is determined by the direction of the magnetic field, that is, by the polarity of the pulse supplied to the control winding(s). Fig. 7 shows an " and " gating device comprising two three-limbed cores 20, 21, each with a control winding 5 and two erasing windings 4, 4<SP>1</SP>, corresponding erasing windings on both cores being connected in series. One of two Hall plates 2, 22 is located in the airgap of each core and is provided with two pairs of electrodes, the plates being connected in cascade. An input signal to the first plate will be transmitted to the output electrodes of the second plate only when both control windings 5 have received a pulse; similarly, a pulse to both pairs of windings 4 and 4<SP>1</SP> is required to interrupt transmission. An " or " gating device, Fig. 5, comprises a core carrying two control windings 5, 5<SP>1</SP> and two erasing windings 4, 4<SP>1</SP>. In an air-gap in the core is located a plate 13, of material, e.g. bismuth or indiumantimony alloy, exhibiting a Gauss effect, and carrying one pair of electrodes (not shown) by means of which the plate is connected as one resistance arm in a Wheatstone bridge comprising three other resistors and supplied with an energizing current on which is superposed the signal to be transmitted. In the absence of a magnetic field the bridge is balanced, but a pulse supplied to either of the control windings 5, 5<SP>1</SP> induces a field which increases the resistance of the plate 13, producing an unbalance current proportional to the input signal, until the field is erased by a pulse through either of windings 4, 4<SP>1</SP>. As the Gauss effect is greater at low temperatures the device may advantageously be maintained at e.g. the temperature of liquid air. In the embodiments described with reference to Figs. 1, 4 and 5, a second plate such as 2 or 13 in Figs. 1 and 5 may be placed in a second air-gap, the two plates of one device being connected in series. The Fig. 5 and Fig. 7 embodiments can be modified to produce devices having three or more alternative or cumulative transmission requirements.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL856014X | 1956-04-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB856014A true GB856014A (en) | 1960-12-14 |
Family
ID=19847247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11381/57A Expired GB856014A (en) | 1956-04-11 | 1957-04-08 | Improvements in or relating to electric gating devices |
Country Status (7)
Country | Link |
---|---|
US (1) | US3011064A (en) |
JP (1) | JPS365451B1 (en) |
BE (1) | BE556563A (en) |
DE (1) | DE1043393B (en) |
FR (1) | FR1173570A (en) |
GB (1) | GB856014A (en) |
NL (2) | NL94396C (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1074647B (en) * | 1960-02-04 | Siemens-Schuckertwerke Aktien gesellschaft Berlin und Erlangen | Contactless electronic switch using magnetic field-sensitive semiconductor resistors | |
US3303427A (en) * | 1962-02-27 | 1967-02-07 | Ibm | Cryogenic hall-effect semimetal electronic element |
DE1490670A1 (en) * | 1964-09-26 | 1969-08-14 | Siemens Ag | Arrangement for balancing the zero voltage of Hall generators |
DE2002936A1 (en) * | 1970-01-23 | 1971-07-29 | Bayer Ag | Bistable storage element with magnetic information storage |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2862184A (en) * | 1958-11-25 | Semiconductor translating device | ||
US2649569A (en) * | 1950-09-28 | 1953-08-18 | Bell Telephone Labor Inc | Semiconductor magnetoresistive device |
US2649574A (en) * | 1951-04-05 | 1953-08-18 | Bell Telephone Labor Inc | Hall-effect wave translating device |
BE515903A (en) * | 1951-11-29 | |||
US2708219A (en) * | 1952-06-25 | 1955-05-10 | Cgs Lab Inc | Electrically variable reactance keying or switching apparatus |
GB784129A (en) * | 1953-08-31 | 1957-10-02 | British Telecomm Res Ltd | Improvements in or relating to electrical signalling systems |
DE926885C (en) * | 1953-09-17 | 1955-04-25 | Siemens Ag | Device for mapping a speed as a frequency of a voltage or a current |
US2802953A (en) * | 1955-04-25 | 1957-08-13 | Magnavox Co | Magnetic flip-flop |
US2818556A (en) * | 1955-07-27 | 1957-12-31 | Rca Corp | Magnetic system |
-
0
- BE BE556563D patent/BE556563A/xx unknown
- NL NL206228D patent/NL206228A/xx unknown
- NL NL94396D patent/NL94396C/xx active
-
1957
- 1957-03-13 US US645687A patent/US3011064A/en not_active Expired - Lifetime
- 1957-04-06 DE DEN13506A patent/DE1043393B/en active Pending
- 1957-04-08 GB GB11381/57A patent/GB856014A/en not_active Expired
- 1957-04-08 JP JP861557A patent/JPS365451B1/ja active Pending
- 1957-04-10 FR FR1173570D patent/FR1173570A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE556563A (en) | |
US3011064A (en) | 1961-11-28 |
NL206228A (en) | |
DE1043393B (en) | 1958-11-13 |
NL94396C (en) | |
FR1173570A (en) | 1959-02-26 |
JPS365451B1 (en) | 1961-05-24 |
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