GB1082946A - Improvements in or relating to saw tooth wave form generating circuit arrangements - Google Patents

Improvements in or relating to saw tooth wave form generating circuit arrangements

Info

Publication number
GB1082946A
GB1082946A GB4196663A GB4196663A GB1082946A GB 1082946 A GB1082946 A GB 1082946A GB 4196663 A GB4196663 A GB 4196663A GB 4196663 A GB4196663 A GB 4196663A GB 1082946 A GB1082946 A GB 1082946A
Authority
GB
United Kingdom
Prior art keywords
waveform
period
ramp
generator
saw
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
GB4196663A
Inventor
John Francis Fulford
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.)
Marconi Instruments Ltd
Original Assignee
Marconi Instruments 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 Instruments Ltd filed Critical Marconi Instruments Ltd
Priority to GB4196663A priority Critical patent/GB1082946A/en
Priority to DEM62866A priority patent/DE1223877B/en
Publication of GB1082946A publication Critical patent/GB1082946A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/02—Generating pulses having essentially a finite slope or stepped portions having stepped portions, e.g. staircase waveform
    • H03K4/026—Generating pulses having essentially a finite slope or stepped portions having stepped portions, e.g. staircase waveform using digital techniques
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K6/00—Manipulating pulses having a finite slope and not covered by one of the other main groups of this subclass

Landscapes

  • Details Of Television Scanning (AREA)

Abstract

1,082,946. Saw-tooth circuits. MARCONI INSTRUMENTS Ltd. Sept. 23, 1964 [Oct. 24, 1963], No. 41966/63. Heading H3P. A ramp waveform of long period is generated by superimposing a short period ramp wave form on an appropriate staircase waveform. As shown, pulses from a generator 1 are fed to a chain of binary frequency dividers 5 the outputs of which are superimposed at 6 to provide a staircase waveform of the required period, each step occurring at the time of each pulse from generator 1. A short period saw-tooth waveform is generated by charging capacitor 3 via a constant current device 2 and discharging it at 4 under control of each pulse from generator 1. The saw-tooth waveform is passed by the buffer amplifier 7 to an adding circuit 8 where it is superimposed on the staircase waveform to provide a linear ramp of long period at 9. The staircase waveform may have 512 steps each lasting five seconds so that the output ramp waveform will have a period of 2560 seconds and a flyback time of 10<SP>-4</SP> seconds. The period of the output waveform may be adjustable by variation of the frequency of generator 1 and simultaneous variation of the constant current 2 so that the short period ramp accurately fills in the staircase waveform.
GB4196663A 1963-10-24 1963-10-24 Improvements in or relating to saw tooth wave form generating circuit arrangements Expired GB1082946A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4196663A GB1082946A (en) 1963-10-24 1963-10-24 Improvements in or relating to saw tooth wave form generating circuit arrangements
DEM62866A DE1223877B (en) 1963-10-24 1964-10-23 Saw tooth generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4196663A GB1082946A (en) 1963-10-24 1963-10-24 Improvements in or relating to saw tooth wave form generating circuit arrangements

Publications (1)

Publication Number Publication Date
GB1082946A true GB1082946A (en) 1967-09-13

Family

ID=10422212

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4196663A Expired GB1082946A (en) 1963-10-24 1963-10-24 Improvements in or relating to saw tooth wave form generating circuit arrangements

Country Status (2)

Country Link
DE (1) DE1223877B (en)
GB (1) GB1082946A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7001235A (en) * 1970-01-29 1971-08-02
GB1404768A (en) * 1971-12-08 1975-09-03 British Aircraft Corp Ltd Waveform generators
GB1459792A (en) * 1973-07-20 1976-12-31 Instron Ltd Electronic ramp function generator

Also Published As

Publication number Publication date
DE1223877B (en) 1966-09-01

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