GB621311A - Improvements in circuits for limiting the amplitude of electrical oscillations - Google Patents

Improvements in circuits for limiting the amplitude of electrical oscillations

Info

Publication number
GB621311A
GB621311A GB4532/47A GB453247A GB621311A GB 621311 A GB621311 A GB 621311A GB 4532/47 A GB4532/47 A GB 4532/47A GB 453247 A GB453247 A GB 453247A GB 621311 A GB621311 A GB 621311A
Authority
GB
United Kingdom
Prior art keywords
frequency
limiting
pair
condenser
load
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
GB4532/47A
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.)
Philips Lamps Ltd
Koninklijke Philips NV
Original Assignee
Philips Lamps Ltd
Philips Gloeilampenfabrieken NV
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 Philips Lamps Ltd, Philips Gloeilampenfabrieken NV filed Critical Philips Lamps Ltd
Publication of GB621311A publication Critical patent/GB621311A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
    • H03G11/06—Limiters of angle-modulated signals; such limiters combined with discriminators

Landscapes

  • Amplitude Modulation (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Amplifiers (AREA)

Abstract

621,311. Limiters; frequency modulation. PHILIPS LAMPS, Ltd. Feb. 17, 1947, No. 4532. Convention date, March 11, 1944. [Class 40 (v)] An arrangement for limiting audio-frequency variations of a signal carrier, more particularly for use in a frequency-modulation receiver, comprises a shunt impedance-inverting network 2 terminated in a diode having a load 8 which is of high impedance at audio frequencies. The network 2 comprises a pair of equal inductances 12, 13 and a condenser 14 having the relationship #<2>LC=1 for the carrier frequency, or may alternatively take the form of a pair of coupled resonant circuits. The load 8 comprises series resistance and inductance 9, 10 shunted by a condenser for the carrier frequency. Full-wave limiting may be obtained by using a pair of inversely-poled diodes in parallel.
GB4532/47A 1944-03-11 1947-02-17 Improvements in circuits for limiting the amplitude of electrical oscillations Expired GB621311A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL621311X 1944-03-11

Publications (1)

Publication Number Publication Date
GB621311A true GB621311A (en) 1949-04-07

Family

ID=19788437

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4532/47A Expired GB621311A (en) 1944-03-11 1947-02-17 Improvements in circuits for limiting the amplitude of electrical oscillations

Country Status (1)

Country Link
GB (1) GB621311A (en)

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