GB801602A - Improvements in and relating to electrical systems - Google Patents

Improvements in and relating to electrical systems

Info

Publication number
GB801602A
GB801602A GB407356A GB407356A GB801602A GB 801602 A GB801602 A GB 801602A GB 407356 A GB407356 A GB 407356A GB 407356 A GB407356 A GB 407356A GB 801602 A GB801602 A GB 801602A
Authority
GB
United Kingdom
Prior art keywords
anode
pulse
pulses
controlled
negative
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
GB407356A
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.)
Space Systems Loral LLC
Original Assignee
Philco Ford Corp
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 Philco Ford Corp filed Critical Philco Ford Corp
Priority to GB407356A priority Critical patent/GB801602A/en
Publication of GB801602A publication Critical patent/GB801602A/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
    • H03K3/16—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 a transformer for feedback, e.g. blocking oscillator with saturable core

Abstract

801,602. Pulse generating circuits. DRUMMOND, P. (Philco Corporation). Feb. 9, 1956, No. 4073/56. Class 40 (6). In a blocking oscillator comprising an electric discharge tube having the anode and control grid circuits regeneratively coupled so that negative pulses are generated at the anode, the duration of the pulses is controlled by feeding back to the anode via a capacitive circuit a positive pulse which is coincident with the negative pulse. The Figure shows a blocking oscillator which may be free-running or triggered by positive synchronizing pulses applied at terminal 25. The negative pulse generated at the anode of tube 18 appears as a positive pulse across winding 16 and is applied via cathodefollower stage 26 back to the anode of tube 18 to increase the duration of the negative pulse generated in dependence upon the time constant of the feedback path which may be controlled by varying the value of capacitor 32. The pulse repetition frequency may be controlled by variation of resistor 22. In a modification, Fig. 2 (not shown), the pulses for triggering the circuit are fed via a cathode-follower stage into the grid-cathode winding of the blocking-oscillator transformer.
GB407356A 1956-02-09 1956-02-09 Improvements in and relating to electrical systems Expired GB801602A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB407356A GB801602A (en) 1956-02-09 1956-02-09 Improvements in and relating to electrical systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB407356A GB801602A (en) 1956-02-09 1956-02-09 Improvements in and relating to electrical systems

Publications (1)

Publication Number Publication Date
GB801602A true GB801602A (en) 1958-09-17

Family

ID=9770231

Family Applications (1)

Application Number Title Priority Date Filing Date
GB407356A Expired GB801602A (en) 1956-02-09 1956-02-09 Improvements in and relating to electrical systems

Country Status (1)

Country Link
GB (1) GB801602A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103457578A (en) * 2013-09-10 2013-12-18 昆山新金福精密电子有限公司 Feedback type signal generation circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103457578A (en) * 2013-09-10 2013-12-18 昆山新金福精密电子有限公司 Feedback type signal generation circuit

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