GB1072921A - Improvements relating to function generators - Google Patents

Improvements relating to function generators

Info

Publication number
GB1072921A
GB1072921A GB756563A GB756563A GB1072921A GB 1072921 A GB1072921 A GB 1072921A GB 756563 A GB756563 A GB 756563A GB 756563 A GB756563 A GB 756563A GB 1072921 A GB1072921 A GB 1072921A
Authority
GB
United Kingdom
Prior art keywords
oscillator
diodes
diode
function
transfer function
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
GB756563A
Inventor
William Spencer Percival
Donald Peter Franklin
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB756563A priority Critical patent/GB1072921A/en
Publication of GB1072921A publication Critical patent/GB1072921A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/26—Arbitrary function generators
    • G06G7/28—Arbitrary function generators for synthesising functions by piecewise approximation

Landscapes

  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

1,072,921. Electric analogue calculating. ELECTRIC & MUSICAL INDUSTRIES Ltd. Feb. 26, 1964 [Feb. 26, 1963], No. 7565/63. Heading G4G. A break-point diode function generator is provided with an oscillator 10 which causes the transfer function to oscillate between a first and a second value, to provide a smooth transition between adjacent linear approximations of the transfer function. Each group of resistors 5, 7, 8 determines a particular linear transfer function a, b, c, Fig. 2, approximating to the required transfer relationship, the transition point being S, T. Considering operation near point S, oscillator 10 produces a triangular waveform oscillation having peak amplitude H which is connected via resistor 11A to diode 6A, and an antiphase oscillation of amplitude K connected via resistor 11B to diode 6B. Due to the switching action of the diodes the output waveform produced corresponds to the full line portions h, k having an average value n, so that the working point corresponding to input r is N instead of L, the value LN being a function of LM. Any components of the output at the frequency of oscillator 10 are removed by filter 13. Waveforms other than triangular may be used, and the oscillator 10 may be connected to all diodes in the same phase, or may be connected only to alternate diodes.
GB756563A 1963-02-26 1963-02-26 Improvements relating to function generators Expired GB1072921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB756563A GB1072921A (en) 1963-02-26 1963-02-26 Improvements relating to function generators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB756563A GB1072921A (en) 1963-02-26 1963-02-26 Improvements relating to function generators

Publications (1)

Publication Number Publication Date
GB1072921A true GB1072921A (en) 1967-06-21

Family

ID=9835561

Family Applications (1)

Application Number Title Priority Date Filing Date
GB756563A Expired GB1072921A (en) 1963-02-26 1963-02-26 Improvements relating to function generators

Country Status (1)

Country Link
GB (1) GB1072921A (en)

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