FR2328326A1 - Accurate digital to analogue convertor - has clock controlled counter using reference source eliminating potentiometer resistors - Google Patents

Accurate digital to analogue convertor - has clock controlled counter using reference source eliminating potentiometer resistors

Info

Publication number
FR2328326A1
FR2328326A1 FR7328466A FR7328466A FR2328326A1 FR 2328326 A1 FR2328326 A1 FR 2328326A1 FR 7328466 A FR7328466 A FR 7328466A FR 7328466 A FR7328466 A FR 7328466A FR 2328326 A1 FR2328326 A1 FR 2328326A1
Authority
FR
France
Prior art keywords
reference source
accurate digital
clock controlled
potentiometer resistors
controlled counter
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.)
Granted
Application number
FR7328466A
Other languages
French (fr)
Other versions
FR2328326B1 (en
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.)
Chauvin Arnoux SAS
Original Assignee
Chauvin Arnoux SAS
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 Chauvin Arnoux SAS filed Critical Chauvin Arnoux SAS
Priority to FR7328466A priority Critical patent/FR2328326A1/en
Publication of FR2328326A1 publication Critical patent/FR2328326A1/en
Application granted granted Critical
Publication of FR2328326B1 publication Critical patent/FR2328326B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/08—Continuously compensating for, or preventing, undesired influence of physical parameters of noise

Abstract

Convertor providing an analogue output as a function of digital inputs. The circuit provides a high conversion accuracy without the need for large numbers of potentiometer resistors and associated switching normally used to provide a reference voltage. A counting circuit is fed from a clock pulses an output is generated changing the state of a multivibrator and providing a numeric value, X, display. The change of state allows the reference voltage to fed in to the counter until this reaches the reference value X. The cycle is continuously repeated until both input values are identical.
FR7328466A 1973-08-03 1973-08-03 Accurate digital to analogue convertor - has clock controlled counter using reference source eliminating potentiometer resistors Granted FR2328326A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7328466A FR2328326A1 (en) 1973-08-03 1973-08-03 Accurate digital to analogue convertor - has clock controlled counter using reference source eliminating potentiometer resistors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7328466A FR2328326A1 (en) 1973-08-03 1973-08-03 Accurate digital to analogue convertor - has clock controlled counter using reference source eliminating potentiometer resistors

Publications (2)

Publication Number Publication Date
FR2328326A1 true FR2328326A1 (en) 1977-05-13
FR2328326B1 FR2328326B1 (en) 1978-02-24

Family

ID=9123559

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7328466A Granted FR2328326A1 (en) 1973-08-03 1973-08-03 Accurate digital to analogue convertor - has clock controlled counter using reference source eliminating potentiometer resistors

Country Status (1)

Country Link
FR (1) FR2328326A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2583237A1 (en) * 1985-06-06 1986-12-12 Motorola Inc DIGITAL-TO-ANALOG CONVERTER

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2583237A1 (en) * 1985-06-06 1986-12-12 Motorola Inc DIGITAL-TO-ANALOG CONVERTER

Also Published As

Publication number Publication date
FR2328326B1 (en) 1978-02-24

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Legal Events

Date Code Title Description
ST Notification of lapse