GB1113306A - Improvements in and relating to electrical bistable circuits - Google Patents

Improvements in and relating to electrical bistable circuits

Info

Publication number
GB1113306A
GB1113306A GB1328466A GB1328466A GB1113306A GB 1113306 A GB1113306 A GB 1113306A GB 1328466 A GB1328466 A GB 1328466A GB 1328466 A GB1328466 A GB 1328466A GB 1113306 A GB1113306 A GB 1113306A
Authority
GB
United Kingdom
Prior art keywords
pulse
diode
circuit
transistors
stable
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
GB1328466A
Inventor
Frederick Henry Rees
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB1328466A priority Critical patent/GB1113306A/en
Publication of GB1113306A publication Critical patent/GB1113306A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/0175—Coupling arrangements; Interface arrangements
    • H03K19/018—Coupling arrangements; Interface arrangements using bipolar transistors only
    • H03K19/01806—Interface arrangements
    • 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
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
    • H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • 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
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
    • H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/286—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator bistable

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Electronic Switches (AREA)

Abstract

1,113,306. Transistor bi-stable circuits. STANDARD TELEPHONES & CABLES Ltd. 25 March, 1966, No. 13284/66. Heading H3T. When a bi-stable circuit comprising a complementary pair of transistors T1, T2 is used to feed pulses to a line, a choke L1 partially isolates the circuit from the linewhile the circuit is being switched between states. As described, transistors T1, T2 are normally non-conductive until a negative pulse is received at one of the inputs 1-n when both transistors become conductive. After a short delay due to build-up of current in choke L1, a pulse is initiated in the twisted-pair output line. The pulse is terminated by a positive pulse fed to diode D2 or a negative-going pulse (from + 6 v. to -6 v.) fed to diode D3. Diode D5 isolates the load from the bi-stable circuit during the turn-off period; diode D4 prevents current via D5 to the base of T1 during the off state whilst diodes D6, D7, D8 limit the rise in voltage at their respective connections.
GB1328466A 1966-03-25 1966-03-25 Improvements in and relating to electrical bistable circuits Expired GB1113306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1328466A GB1113306A (en) 1966-03-25 1966-03-25 Improvements in and relating to electrical bistable circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1328466A GB1113306A (en) 1966-03-25 1966-03-25 Improvements in and relating to electrical bistable circuits

Publications (1)

Publication Number Publication Date
GB1113306A true GB1113306A (en) 1968-05-15

Family

ID=10020175

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1328466A Expired GB1113306A (en) 1966-03-25 1966-03-25 Improvements in and relating to electrical bistable circuits

Country Status (1)

Country Link
GB (1) GB1113306A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120888A (en) * 1982-05-26 1983-12-07 Ates Componenti Elettron Improvements in or relating to bistable multivibrator circuits

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120888A (en) * 1982-05-26 1983-12-07 Ates Componenti Elettron Improvements in or relating to bistable multivibrator circuits
US4553046A (en) * 1982-05-26 1985-11-12 Sgs-Ates Componenti Elettronici Spa Monolithically integratable bistable multivibrator circuit having at least one output that can be placed in a preferential state

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