DE2922902A1 - Frequenz-stromumformer, besonders geeignet fuer anzeigegeraete - Google Patents

Frequenz-stromumformer, besonders geeignet fuer anzeigegeraete

Info

Publication number
DE2922902A1
DE2922902A1 DE19792922902 DE2922902A DE2922902A1 DE 2922902 A1 DE2922902 A1 DE 2922902A1 DE 19792922902 DE19792922902 DE 19792922902 DE 2922902 A DE2922902 A DE 2922902A DE 2922902 A1 DE2922902 A1 DE 2922902A1
Authority
DE
Germany
Prior art keywords
zener diode
converter according
voltage
emitter follower
current
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.)
Withdrawn
Application number
DE19792922902
Other languages
German (de)
English (en)
Inventor
Renzo Fedrigo
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.)
C G S ISTRUMENTI DI MISURA SpA
Original Assignee
C G S ISTRUMENTI DI MISURA SpA
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 C G S ISTRUMENTI DI MISURA SpA filed Critical C G S ISTRUMENTI DI MISURA SpA
Publication of DE2922902A1 publication Critical patent/DE2922902A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/4802—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage by using electronic circuits in general
    • G01P3/4807—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage by using electronic circuits in general by using circuits for the detection of the pulses delivered by the ignition system of an internal combustion engine
    • 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
    • G01R23/06—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into an amplitude of current or voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Amplifiers (AREA)
  • Measurement Of Current Or Voltage (AREA)
DE19792922902 1978-06-08 1979-06-06 Frequenz-stromumformer, besonders geeignet fuer anzeigegeraete Withdrawn DE2922902A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT7824347A IT1206614B (it) 1978-06-08 1978-06-08 Dispositivo convertitore frequenza-corrente, particolarmente per strumenti indicatori.

Publications (1)

Publication Number Publication Date
DE2922902A1 true DE2922902A1 (de) 1979-12-20

Family

ID=11213197

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792922902 Withdrawn DE2922902A1 (de) 1978-06-08 1979-06-06 Frequenz-stromumformer, besonders geeignet fuer anzeigegeraete

Country Status (3)

Country Link
DE (1) DE2922902A1 (es)
FR (1) FR2428262A1 (es)
IT (1) IT1206614B (es)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1253458A (en) * 1969-02-08 1971-11-17 Gen Motors Ltd Electronic tachometer
US3706035A (en) * 1970-05-23 1972-12-12 Itt Integrable revolution measuring circuit with supply voltage transient suppression
JPS5549460B2 (es) * 1974-01-18 1980-12-12
FR2396978A1 (fr) * 1978-07-07 1979-02-02 Cgs Apparecch Convertisseur frequence-intensite de courant, en particulier pour instruments indicateurs

Also Published As

Publication number Publication date
IT1206614B (it) 1989-04-27
FR2428262A1 (fr) 1980-01-04
FR2428262B1 (es) 1984-02-10
IT7824347A0 (it) 1978-06-08

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee