GB631678A - Improvements relating to electronic timing circuits - Google Patents

Improvements relating to electronic timing circuits

Info

Publication number
GB631678A
GB631678A GB4854/47A GB485447A GB631678A GB 631678 A GB631678 A GB 631678A GB 4854/47 A GB4854/47 A GB 4854/47A GB 485447 A GB485447 A GB 485447A GB 631678 A GB631678 A GB 631678A
Authority
GB
United Kingdom
Prior art keywords
valve
anode
capacitor
signal
conducting
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
GB4854/47A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical 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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB4854/47A priority Critical patent/GB631678A/en
Priority to US5356A priority patent/US2530033A/en
Publication of GB631678A publication Critical patent/GB631678A/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
    • H03K3/04—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback
    • H03K3/05—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback
    • H03K3/06—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback using at least two tubes so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/10—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback using at least two tubes so coupled that the input of one is derived from the output of another, e.g. multivibrator monostable

Abstract

631,678. Pulse generating circuits. SCOLES, G. J., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Feb. 19, 1947, No. 4854. [Class 40 (vi)] In a flip-flop circuit in which the duration of the unstable state is terminated by a retriggering signal applied to the cathode of the valve which is then non-conducting, the amplitude of signal required to perform this action is reduced by means of a feed-back circuit between the anode and control grid of the cut-off valve which applies a signal to the grid of the valve to oppose the negative potential which causes the valve to be non-conducting. The Figure shows valves V1, V2 arranged in a cathode-coupled flip-flop circuit, the time constant of the network R2, C1, being very long and the unstable state when V2 is non-conducting being terminated by a signal applied across resistor R3. The anode of valve V2 is connected to its control grid via resistor R5 and capacitor C1 so that during the unstable state when valve V2 is cut-off by a negative voltage at its control grid the positive rise of voltage at its anode is fed back to the grid to reduce the negative potential there and thus to enable the flip-flop to be retriggered back to its initial stable state by a signal of relatively small amplitude. The feed-back is controlled by a capacitor C2 connected between the anode of V2 and a point of fixed potential. Initially, due to the presence of C2 the anode potential of V2 does not vary but subsequently when V2 is cut-off capacitor C2 will charge through resistor R4. The pulse appearing at the anode of valve V may be used to trigger a discharging valve V3 connected across a capacitor C4 in a sawtooth generating circuit. Specification 612,244 is referred to.
GB4854/47A 1947-02-19 1947-02-19 Improvements relating to electronic timing circuits Expired GB631678A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4854/47A GB631678A (en) 1947-02-19 1947-02-19 Improvements relating to electronic timing circuits
US5356A US2530033A (en) 1947-02-19 1948-01-30 Sensitive flip-flop circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4854/47A GB631678A (en) 1947-02-19 1947-02-19 Improvements relating to electronic timing circuits

Publications (1)

Publication Number Publication Date
GB631678A true GB631678A (en) 1949-11-08

Family

ID=9785056

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4854/47A Expired GB631678A (en) 1947-02-19 1947-02-19 Improvements relating to electronic timing circuits

Country Status (2)

Country Link
US (1) US2530033A (en)
GB (1) GB631678A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5261537A (en) * 1987-11-20 1993-11-16 Lion Corporation Container

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2842666A (en) * 1951-11-19 1958-07-08 Gen Electric Multivibrator
US2781459A (en) * 1954-03-24 1957-02-12 Bell Telephone Labor Inc Power control circuit
US2806949A (en) * 1955-03-30 1957-09-17 Raymond H Smith Gated pulse generator
AT313973B (en) * 1971-02-05 1974-03-11 Nii Postoyannogo Toka Min Ener Monostable multivibrator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416333A (en) * 1942-03-20 1947-02-25 Int Standard Electric Corp Precise measurement of time intervals
BE472352A (en) * 1942-10-22
US2441579A (en) * 1943-01-06 1948-05-18 Sperry Corp Stabilized multivibrator
US2414486A (en) * 1943-11-30 1947-01-21 Bell Telephone Labor Inc Sweep control circuits
US2459852A (en) * 1945-06-08 1949-01-25 Gen Electric Trigger network
US2470028A (en) * 1946-01-18 1949-05-10 Bendix Aviat Corp Pulse generation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5261537A (en) * 1987-11-20 1993-11-16 Lion Corporation Container

Also Published As

Publication number Publication date
US2530033A (en) 1950-11-14

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