GB1204712A - Improvements in or relating to control circuit arrangements - Google Patents

Improvements in or relating to control circuit arrangements

Info

Publication number
GB1204712A
GB1204712A GB3599467A GB3599467A GB1204712A GB 1204712 A GB1204712 A GB 1204712A GB 3599467 A GB3599467 A GB 3599467A GB 3599467 A GB3599467 A GB 3599467A GB 1204712 A GB1204712 A GB 1204712A
Authority
GB
United Kingdom
Prior art keywords
transistor
pulse
input
circuit
output
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
GB3599467A
Inventor
Roger Anthony Cooper
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co 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 Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB3599467A priority Critical patent/GB1204712A/en
Publication of GB1204712A publication Critical patent/GB1204712A/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
    • H03K3/26—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
    • H03K3/284—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 monostable

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Primary Cells (AREA)
  • Amplifiers (AREA)

Abstract

1,204,712. Pulse lengthening and switching circuits. MARCONI CO. Ltd. 18 April, 1968 [4 Aug., 1967], No. 35994/67. Heading H3T. A switching circuit has an output transistor switched by an input pulse, the quasi-stablestate output of a monostable transistor-pair circuit maintaining the output transistor state for a predetermined time at the end of the pulse. In the Figure a cross-coupled transistor monostable circuit is connected to a transistor T3 which has an operating device L1, e.g. a teleprinter solenoid in its output circuit. A pulse input can be applied to transistor T1 through capacitor C1 and to T3 through resistor R2. Under stable conditions, with a negative input, T1 is conducting and T2 and T3 are cut off. On receipt of a positive pulse, T3 conducts and at its completion, the monostable circuit assumes its quasi-stable state with T2 conducting and T1 cut off. During the predetermined duration of this state, T3 continues to conduct, although the input is now negative. Diode D1 removes negative charge from the base of T1 before the next triggering. Further apparatus can be controlled from terminal OUT.
GB3599467A 1967-08-04 1967-08-04 Improvements in or relating to control circuit arrangements Expired GB1204712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3599467A GB1204712A (en) 1967-08-04 1967-08-04 Improvements in or relating to control circuit arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3599467A GB1204712A (en) 1967-08-04 1967-08-04 Improvements in or relating to control circuit arrangements

Publications (1)

Publication Number Publication Date
GB1204712A true GB1204712A (en) 1970-09-09

Family

ID=10383803

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3599467A Expired GB1204712A (en) 1967-08-04 1967-08-04 Improvements in or relating to control circuit arrangements

Country Status (1)

Country Link
GB (1) GB1204712A (en)

Similar Documents

Publication Publication Date Title
FR91357E (en)
GB1226502A (en)
GB1030479A (en) A detector of pulses exceeding a predetermined length
US3122652A (en) Time base generator
GB949531A (en) A bistable circuit
GB961846A (en) Timing circuit for defining long intervals of time
US3210613A (en) Timing circuit
US3711729A (en) Monostable multivibrator having output pulses dependent upon input pulse widths
GB1375802A (en)
GB1204712A (en) Improvements in or relating to control circuit arrangements
US3018390A (en) Pulse shortening generator
US2950398A (en) Electrical pulse producing apparatus
US3035188A (en) Transistor type impulse relay
GB1405450A (en) Pulse generating circuit
US3168648A (en) Pulse generator employing cascade connected transistors for switching direct current power sources across output transformers
GB1077770A (en) Transistor avalanche mode pulse generator
US3407313A (en) Monostable multivibrator with an auxiliary transistor in the timing circuit for broadening the output pulses
US3316424A (en) Pulse width shaper
GB1265692A (en)
US3604955A (en) Step input responsive output pulse generation circuit
GB1179672A (en) Triggering Method and Apparatus
GB951844A (en) An electronic device using tunnel diodes
GB1153242A (en) Transistor Monostable Circuits
SU1003341A1 (en) Gating device
GB1008327A (en) Bistable trigger circuits employing negative resistance diodes

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees