IT1208353B - Convertitore di frequenza - Google Patents

Convertitore di frequenza

Info

Publication number
IT1208353B
IT1208353B IT8767240A IT6724087A IT1208353B IT 1208353 B IT1208353 B IT 1208353B IT 8767240 A IT8767240 A IT 8767240A IT 6724087 A IT6724087 A IT 6724087A IT 1208353 B IT1208353 B IT 1208353B
Authority
IT
Italy
Prior art keywords
frequency converter
converter
frequency
Prior art date
Application number
IT8767240A
Other languages
English (en)
Other versions
IT8767240A0 (it
Inventor
Rainer Fey
Original Assignee
Fichtel & Sachs Ag
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 Fichtel & Sachs Ag filed Critical Fichtel & Sachs Ag
Publication of IT8767240A0 publication Critical patent/IT8767240A0/it
Application granted granted Critical
Publication of IT1208353B publication Critical patent/IT1208353B/it

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G01R23/15—Indicating that frequency of pulses is either above or below a predetermined value or within or outside a predetermined range of values, by making use of non-linear or digital elements (indicating that pulse width is above or below a certain limit)

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Manipulation Of Pulses (AREA)
  • Electronic Switches (AREA)
  • Dc-Dc Converters (AREA)
  • Pulse Circuits (AREA)
IT8767240A 1986-03-29 1987-03-27 Convertitore di frequenza IT1208353B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863610605 DE3610605A1 (de) 1986-03-29 1986-03-29 Frequenzschalter

Publications (2)

Publication Number Publication Date
IT8767240A0 IT8767240A0 (it) 1987-03-27
IT1208353B true IT1208353B (it) 1989-06-12

Family

ID=6297506

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8767240A IT1208353B (it) 1986-03-29 1987-03-27 Convertitore di frequenza

Country Status (7)

Country Link
US (1) US4746820A (it)
JP (1) JPS62238469A (it)
DE (1) DE3610605A1 (it)
FR (1) FR2596871A1 (it)
GB (1) GB2188500B (it)
IT (1) IT1208353B (it)
SE (1) SE464598B (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4845379A (en) * 1988-07-05 1989-07-04 International Business Machines Corporation Sense circuit for detecting absence of a pulse train
DE3910620A1 (de) * 1989-04-01 1990-10-04 Hagenuk Telecom Gmbh Schaltungsanordnung zum erkennen einer signalfrequenz
US5446322A (en) * 1992-05-01 1995-08-29 Analog Devices, Inc. Apparatus and method for determining when the frequency of an alternating signal is below a predetermined threshold
SE470527B (sv) * 1992-11-18 1994-07-04 Ericsson Telefon Ab L M Metod och anordning för att detektera om en signal har en önskad på förhand fastställd frekvens eller ej
US7116139B2 (en) * 2002-09-13 2006-10-03 Texas Instruments Incorporated Apparatus and method for controlling operation of a processor device during startup
CN1848683B (zh) * 2005-04-15 2010-05-05 鸿富锦精密工业（深圳）有限公司 三角波发生器及包含它的脉宽调制信号发生电路

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB978045A (en) * 1960-04-01 1964-12-16 Emi Ltd Improvements in or relating to electrical control circuits
GB1196551A (en) * 1968-02-01 1970-07-01 Quest Automation Sales Ltd Improvements in or relating to Monitoring and Control Systems
GB1182027A (en) * 1968-06-12 1970-02-25 Rolls Royce Improvements in or relating to tachometer circuits
DE2203320A1 (de) * 1972-01-25 1973-08-02 Daimler Benz Ag Vorrichtung zur bildung und verarbeitung von geschwindigkeitssignalen bei fahrzeugen
US3852675A (en) * 1972-10-11 1974-12-03 Itt Tone detection and switching circuit
US3886420A (en) * 1973-09-10 1975-05-27 Gen Signal Corp Frequency responsive speed control apparatus
GB1452757A (en) * 1973-12-03 1976-10-13 Texas Instruments Ltd Frequency responsive circuit
GB1457294A (en) * 1974-01-05 1976-12-01 Ferranti Ltd Pulse-frequency sensitive switching circuit arrangements felx
US3943382A (en) * 1974-12-23 1976-03-09 Sperry Rand Corporation Frequency operated switch
JPS55109968A (en) * 1979-02-16 1980-08-23 Nissan Motor Co Ltd Frequency decision circuit
US4327323A (en) * 1979-12-03 1982-04-27 Phillips Petroleum Company Comparator apparatus and process
US4454434A (en) * 1979-12-03 1984-06-12 Phillips Petroleum Company Calibration and status monitor comparator apparatus and method

Also Published As

Publication number Publication date
JPS62238469A (ja) 1987-10-19
SE8700928D0 (sv) 1987-03-05
SE464598B (sv) 1991-05-13
GB8702663D0 (en) 1987-03-11
SE8700928L (sv) 1987-09-30
FR2596871A1 (fr) 1987-10-09
IT8767240A0 (it) 1987-03-27
DE3610605A1 (de) 1987-10-01
GB2188500B (en) 1990-04-04
US4746820A (en) 1988-05-24
GB2188500A (en) 1987-09-30

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