GB1079992A - Improvements relating to protective apparatus - Google Patents

Improvements relating to protective apparatus

Info

Publication number
GB1079992A
GB1079992A GB468264A GB468264A GB1079992A GB 1079992 A GB1079992 A GB 1079992A GB 468264 A GB468264 A GB 468264A GB 468264 A GB468264 A GB 468264A GB 1079992 A GB1079992 A GB 1079992A
Authority
GB
United Kingdom
Prior art keywords
winding
laddie
output
control
rung
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
GB468264A
Inventor
Roy Hutchins
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB468264A priority Critical patent/GB1079992A/en
Priority to NL6501222A priority patent/NL6501222A/xx
Priority to FR4263A priority patent/FR1423452A/en
Publication of GB1079992A publication Critical patent/GB1079992A/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
    • 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
    • H03K3/51—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 the devices being multi-aperture magnetic cores, e.g. transfluxors
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Automotive Seat Belt Assembly (AREA)

Abstract

1,079,992. Circuits employing bi-stable magnetic elements. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 20, 1965 [Feb. 4, 1964], No. 4682/64. Heading H3B. [Also in Division H2] A supervisory circuit comprising a plurality of laddics connected in cascade with the output winding of each laddie (except the last) connected to a control winding of the next laddic in the sequence has a damping winding arranged on limbs carrying a control winding connected to the output winding of the preceding laddie. In Fig. 2 the output winding A of a first laddie is connected through a transistor amplifier, Fig. 3 (not shown), to a control winding B on rung 6 of a second laddic. Each laddie has its own input and reset windings which are energized alternately. When control signals from the system being protected are present on all the control windings 1, 2, 3 of the first laddie output pulses are fed to the winding B on the second laddie. The damping winding or short-circuited winding SS on the same rung as winding B delays the changes in this rung which would occur due to current pulses applied to the input winding of the second laddie and the current pulses through winding B tends to restore any changes. There will therefore be an output from the output winding of the second laddie when input pulses are applied to its input winding. If one of the control signals 1 to 3 fail due to a fault in the equipment being protected so that no output pulses are applied to winding B then output signals from the second laddie will cease after a few cycles due to the reversal of flux in the rung on which winding B is wound.
GB468264A 1964-02-04 1964-02-04 Improvements relating to protective apparatus Expired GB1079992A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB468264A GB1079992A (en) 1964-02-04 1964-02-04 Improvements relating to protective apparatus
NL6501222A NL6501222A (en) 1964-02-04 1965-01-29
FR4263A FR1423452A (en) 1964-02-04 1965-02-03 Monitoring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB468264A GB1079992A (en) 1964-02-04 1964-02-04 Improvements relating to protective apparatus

Publications (1)

Publication Number Publication Date
GB1079992A true GB1079992A (en) 1967-08-16

Family

ID=9781804

Family Applications (1)

Application Number Title Priority Date Filing Date
GB468264A Expired GB1079992A (en) 1964-02-04 1964-02-04 Improvements relating to protective apparatus

Country Status (3)

Country Link
FR (1) FR1423452A (en)
GB (1) GB1079992A (en)
NL (1) NL6501222A (en)

Also Published As

Publication number Publication date
FR1423452A (en) 1966-01-03
NL6501222A (en) 1965-08-05

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