GB764861A - Improvements relating to square wave voltage generators - Google Patents

Improvements relating to square wave voltage generators

Info

Publication number
GB764861A
GB764861A GB3630753A GB3630753A GB764861A GB 764861 A GB764861 A GB 764861A GB 3630753 A GB3630753 A GB 3630753A GB 3630753 A GB3630753 A GB 3630753A GB 764861 A GB764861 A GB 764861A
Authority
GB
United Kingdom
Prior art keywords
input
voltage
resistor
peak
square wave
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
GB3630753A
Inventor
Christopher Francis Wilkinson
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB3630753A priority Critical patent/GB764861A/en
Priority to FR1116650D priority patent/FR1116650A/en
Publication of GB764861A publication Critical patent/GB764861A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/08—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)

Abstract

764,861. Pulse generating circuits. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 25, 1955 [Dec. 31, 1953], No. 36207/54. Class 40(6) A circuit for generating a square wave voltage from a sinusoidal input comprises an amplifier having a negative feedback path including biasing means whereby appreciable feed-back occurs when the input voltage exceeds a pre-determined proportion of its peak value, the effective bias being equalized during positive and negative half-cycles of the input. The Figure shows a non-linear circuit in which a sinusoidal voltage is applied at input VIN to an amplifier which has a negative feedback path comprising oppositely poled rectifiers D1, D2 and capacitors C1, C2. The capacitors will acquire charges which have a constant . mean value over a number of cycles so that neither rectifier conducts until the applied voltage exceeds that across either capacitor. For a sine-wave input of constant amplitude the output voltage waveform will' have equal areas above and below the axis and the peak voltage of the square wave out- - put will vary with the peak voltage of the sinusoidal input. In a modification the resistor R is replaced by a thermistor and resistor in series by this means an approximately constant output peak voltage is obtained with varying input voltage. The mean gain and thus the peak output can be made constant for a wide range of input voltages and independently of the ambient temperature by also replacing resistor R1 by a thermistor and resistor in series.
GB3630753A 1953-12-31 1953-12-31 Improvements relating to square wave voltage generators Expired GB764861A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3630753A GB764861A (en) 1953-12-31 1953-12-31 Improvements relating to square wave voltage generators
FR1116650D FR1116650A (en) 1953-12-31 1954-12-29 Square wave generators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3630753A GB764861A (en) 1953-12-31 1953-12-31 Improvements relating to square wave voltage generators

Publications (1)

Publication Number Publication Date
GB764861A true GB764861A (en) 1957-01-02

Family

ID=10386936

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3630753A Expired GB764861A (en) 1953-12-31 1953-12-31 Improvements relating to square wave voltage generators

Country Status (2)

Country Link
FR (1) FR1116650A (en)
GB (1) GB764861A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3162818A (en) * 1961-09-11 1964-12-22 Bell Telephone Labor Inc Symmetrically limiting amplifier with feedback paths responsive to instantaneous and average signal variations
US3200346A (en) * 1962-08-21 1965-08-10 Adage Inc Overload protection circuit for high impedance amplifiers

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1252304B (en) * 1956-09-25
US3153187A (en) * 1957-11-29 1964-10-13 North American Aviation Inc Transistor alternating-current voltage regulator
US3092729A (en) * 1958-11-03 1963-06-04 Control Data Corp Bi-level amplifier and control device
US3130325A (en) * 1960-08-01 1964-04-21 Electronic Associates Electronic switch having feedback compensating for switch nonlinearities
US3500067A (en) * 1966-07-11 1970-03-10 Us Navy Symmetrical waveform rate-of-rise clipper amplifier

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3162818A (en) * 1961-09-11 1964-12-22 Bell Telephone Labor Inc Symmetrically limiting amplifier with feedback paths responsive to instantaneous and average signal variations
US3200346A (en) * 1962-08-21 1965-08-10 Adage Inc Overload protection circuit for high impedance amplifiers

Also Published As

Publication number Publication date
FR1116650A (en) 1956-05-09

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