SE341199B - - Google Patents

Info

Publication number
SE341199B
SE341199B SE561470A SE561470A SE341199B SE 341199 B SE341199 B SE 341199B SE 561470 A SE561470 A SE 561470A SE 561470 A SE561470 A SE 561470A SE 341199 B SE341199 B SE 341199B
Authority
SE
Sweden
Prior art keywords
frequency
periodical
signal
phase
gates
Prior art date
Application number
SE561470A
Inventor
T Fjaellbrant
A Nilsson
S Johansson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE561470A priority Critical patent/SE341199B/xx
Priority to DE19712118065 priority patent/DE2118065B2/en
Priority to NL7104970A priority patent/NL7104970A/xx
Priority to GB999471A priority patent/GB1314484A/en
Priority to FR7114327A priority patent/FR2086278B1/fr
Publication of SE341199B publication Critical patent/SE341199B/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/16—Networks for phase shifting
    • H03H11/22—Networks for phase shifting providing two or more phase shifted output signals, e.g. n-phase output
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/18—Networks for phase shifting
    • H03H7/21—Networks for phase shifting providing two or more phase shifted output signals, e.g. n-phase output

Landscapes

  • Manipulation Of Pulses (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

1314484 Phase shifting arrangements TELEFONAKTIEBOLAGET LM ERICSSON 19 April 1971 [23 April 1970] 9994/71 Heading H3F In a method of processing a periodical signal, a second periodical signal is generated from periodical samples of the first signal, and at least one-third periodical signal is generated from periodical samples of the second periodical signal so as to be phase-shifted from the first periodical signal. Signal of frequency f is gated in gate A by pulses of frequency 3f 0 , where f < f 0 < 2f. The output of gate A is applied to three gates B1, B2, B3 in parallel, these gates being driven with successive first, second and third pulses from a source of frequency 3f 0 . The outputs are smoothed by filters C1, C2, C3 to produce three outputs of frequency (f 0 -f) respectively phase-shifted by 0, 120 and 240 degrees. Three signals are passed to gates D1, D2, D3, respectively, where they are sampled at frequency 3f 0 ; each output is applied to one of three inputs of sampling circuits E1, E2, E3 in which selection is made in each sampling circuit by means of successive first, second and third sampling pulses from a source of frequency 3f 0 . The outputs are smoothed by filters F1, F2, F3 and comprise the original frequency f with phase-shifts of 0, 120 and 240 degrees, respectively.
SE561470A 1970-04-23 1970-04-23 SE341199B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE561470A SE341199B (en) 1970-04-23 1970-04-23
DE19712118065 DE2118065B2 (en) 1970-04-23 1971-04-14 METHOD AND ASSIGNMENT FOR CONVERTING A PERIODIC SIGNAL INTO A MULTI-PHASE SIGNAL
NL7104970A NL7104970A (en) 1970-04-23 1971-04-14
GB999471A GB1314484A (en) 1970-04-23 1971-04-19 Method and arrangement for processing a periodical signal
FR7114327A FR2086278B1 (en) 1970-04-23 1971-04-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE561470A SE341199B (en) 1970-04-23 1970-04-23

Publications (1)

Publication Number Publication Date
SE341199B true SE341199B (en) 1971-12-20

Family

ID=20266834

Family Applications (1)

Application Number Title Priority Date Filing Date
SE561470A SE341199B (en) 1970-04-23 1970-04-23

Country Status (5)

Country Link
DE (1) DE2118065B2 (en)
FR (1) FR2086278B1 (en)
GB (1) GB1314484A (en)
NL (1) NL7104970A (en)
SE (1) SE341199B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH636485A5 (en) * 1978-06-26 1983-05-31 Landis & Gyr Ag Signal generator for generating sinusoidal output signals with predetermined mutual phase angle, and use thereof as three-phase generator for calibrating electricity meters

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1325600A (en) * 1962-06-22 1963-04-26 Bush And Rank Cintel Ltd Device for controlling the speed of a synchronous electric motor
FR1427458A (en) * 1964-03-20 1966-02-04 Bbc Brown Boveri & Cie Frequency and amplitude dependent target value transmitter
FR1458627A (en) * 1965-09-30 1966-03-04 Oxymill Sa Variable frequency polyphase electric current generator
CH429888A (en) * 1965-11-18 1967-02-15 Bbc Brown Boveri & Cie Converter circuit for speed control of brushless motors in both directions of rotation
GB1178935A (en) * 1967-09-13 1970-01-21 Philips Electronic Associated Low-Frequency Generator

Also Published As

Publication number Publication date
DE2118065A1 (en) 1971-11-11
DE2118065B2 (en) 1972-05-18
FR2086278A1 (en) 1971-12-31
FR2086278B1 (en) 1975-07-04
NL7104970A (en) 1971-10-26
GB1314484A (en) 1973-04-26

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