GB863791A - Improvements in or relating to bi-stable trigger circuits - Google Patents

Improvements in or relating to bi-stable trigger circuits

Info

Publication number
GB863791A
GB863791A GB4203259A GB4203259A GB863791A GB 863791 A GB863791 A GB 863791A GB 4203259 A GB4203259 A GB 4203259A GB 4203259 A GB4203259 A GB 4203259A GB 863791 A GB863791 A GB 863791A
Authority
GB
United Kingdom
Prior art keywords
electrodes
pulses
winding
current
windings
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
GB4203259A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB863791A publication Critical patent/GB863791A/en
Expired legal-status Critical Current

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
    • H03K17/90—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of galvano-magnetic devices, e.g. Hall-effect devices
    • 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
    • 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)
  • Relay Circuits (AREA)
  • Electronic Switches (AREA)

Abstract

863,791. Semi-conductor bi-stable circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 10, 1959 [Dec. 13, 1958], No. 42032/59. Class 40(6) [Also in Group XXXVI] A bi-stable trigger circuit comprises a Hall effect device 1 having three electrodes a, b, c and located in the magnetic field of windings 2, 3 each winding being connected in series with a direct current source 4 across a common electrode c and one of the other electrodes a or b of the device 1. Since the device 1 cannot be perfectly symmetrical more charge carriers will tend to flow from electrode c to one or other electrodes a or b. This will create a magnetic field in the windings 2, 3 in such a direction as to force a large proportion of the current through one of the windings thus saturating the magnetic core 16 (not shown in Figs. 1, 2). The excess current in winding 2, for example, will bias back diode 5 so that a positive pulse fed in via capacitor 9 will drive the current mainly through winding 3, reversing the direction of magnetization and changing the direction of current from electrodes c to b. A symmetrical output is available from points 7, 8. Fig. 2 shows a bistable circuit controlling the position of relay 11 and switched between states by input pulses of alternate polarity. Symmetrical output voltages may again be obtained from electrodes a, b. The circuit shown in Fig. 3 is switched from one state to another by alternate application of positive pulses respectively to the upper and lower ends of winding 15. The alternate pulses may respectively represent a binary one and a binary zero. The circuit is arranged to provide an output pulse at terminals 19 only when changing in one direction, negative pulses being suppressed by the diode 18 which may be biased to suppress unwanted small pulses.
GB4203259A 1958-12-13 1959-12-10 Improvements in or relating to bi-stable trigger circuits Expired GB863791A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN15975A DE1090715B (en) 1958-12-13 1958-12-13 Bistable multivibrator based on the Hall effect

Publications (1)

Publication Number Publication Date
GB863791A true GB863791A (en) 1961-03-29

Family

ID=7340125

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4203259A Expired GB863791A (en) 1958-12-13 1959-12-10 Improvements in or relating to bi-stable trigger circuits

Country Status (3)

Country Link
DE (1) DE1090715B (en)
GB (1) GB863791A (en)
NL (1) NL246344A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1202827B (en) * 1963-03-23 1965-10-14 Siemens Ag Bistable toggle switch

Also Published As

Publication number Publication date
NL246344A (en)
DE1090715B (en) 1960-10-13

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