GB839545A - Improvements in or relating to electric trigger devices - Google Patents

Improvements in or relating to electric trigger devices

Info

Publication number
GB839545A
GB839545A GB2312155A GB2312155A GB839545A GB 839545 A GB839545 A GB 839545A GB 2312155 A GB2312155 A GB 2312155A GB 2312155 A GB2312155 A GB 2312155A GB 839545 A GB839545 A GB 839545A
Authority
GB
United Kingdom
Prior art keywords
circuit
magnetic field
current
magnetic
signal
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
GB2312155A
Inventor
Robert Justin Froggatt
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries Ltd
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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB2312155A priority Critical patent/GB839545A/en
Publication of GB839545A publication Critical patent/GB839545A/en
Expired legal-status Critical Current

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

Landscapes

  • Hall/Mr Elements (AREA)

Abstract

839,545. Magnetic signal-storage apparatus. ELECTRIC & MUSICAL INDUSTRIES Ltd. Aug. 13, 1956 [Aug. 11, 1955; Dec. 14, 1955], Nos. 23121/55 and 35852/55. Class 40 (9). [Also in Group XL (c)] In a circuit employing a device 1 exhibiting the Hall effect when an electric current 5 and a magnetic field 7 are applied in mutually perpendicular directions, a regenerative coupling is provided whereby the Hall potential induced in response to a transient signal which initiates the magnetic field can be at least temporarily selfsustaining after the signal ceases. The current 5 is maintained by a supply 4 and the magnetic field 7 is generated by current flowing through coils 6. The Hall effect electrodes are connected to the input terminals 9, 10 so that the potential is fed back to maintain the current flow in the coil. The circuit may have three stable states with zero magnetic field or magnetic field in one or other direction. The coil 6 may be wound on a ferro-magnetic core 11, the remanence of the magnetic circuit being arranged to be sufficient to restore the device to its original condition when the energizing current has been switched off and on again. It is stated that the device may operate as a circuit with at least one unstable state by including a time constant circuit in the regenerative circuit.
GB2312155A 1955-08-11 1955-08-11 Improvements in or relating to electric trigger devices Expired GB839545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2312155A GB839545A (en) 1955-08-11 1955-08-11 Improvements in or relating to electric trigger devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2312155A GB839545A (en) 1955-08-11 1955-08-11 Improvements in or relating to electric trigger devices

Publications (1)

Publication Number Publication Date
GB839545A true GB839545A (en) 1960-06-29

Family

ID=10190445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2312155A Expired GB839545A (en) 1955-08-11 1955-08-11 Improvements in or relating to electric trigger devices

Country Status (1)

Country Link
GB (1) GB839545A (en)

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