JPS55147828A - Analogue-digital converting circuit - Google Patents

Analogue-digital converting circuit

Info

Publication number
JPS55147828A
JPS55147828A JP5549079A JP5549079A JPS55147828A JP S55147828 A JPS55147828 A JP S55147828A JP 5549079 A JP5549079 A JP 5549079A JP 5549079 A JP5549079 A JP 5549079A JP S55147828 A JPS55147828 A JP S55147828A
Authority
JP
Japan
Prior art keywords
voltage
circuit
comparing
output
integrating circuit
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.)
Pending
Application number
JP5549079A
Other languages
Japanese (ja)
Inventor
Masaki Kune
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.)
Seiko Epson Corp
Suwa Seikosha KK
Shiojiri Kogyo KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
Shiojiri Kogyo KK
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 Seiko Epson Corp, Suwa Seikosha KK, Shiojiri Kogyo KK filed Critical Seiko Epson Corp
Priority to JP5549079A priority Critical patent/JPS55147828A/en
Publication of JPS55147828A publication Critical patent/JPS55147828A/en
Pending 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
    • H03M1/12—Analogue/digital converters
    • H03M1/50—Analogue/digital converters with intermediate conversion to time interval
    • H03M1/52—Input signal integrated with linear return to datum

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE:To make high-precise conversion of a stable and sufficient linearity possible without saturation of the integral waveform even for a low voltage, by detecting the polarity of an input voltage and by switching a comparison voltage according to this polarity. CONSTITUTION:Comparison voltage change-over switch group 8 is arranged between the non-inverting input terminal (+) of comparing circuit 4 and reference voltage source 1 and has the operation controlled by logical control circuit 6. Integral waveform 41 is integrated from comparing voltage Vc1 for fixed time T1 by integrating circuit 6. At the end of this integration, the output signal is output from circuit 6 to control switch group 2, and a reference voltage reverse to input signal voltage 5 is applied to the integrating circuit by reference voltage group 1 and is integrated until the output voltage of the integrating circuit becomes equal to comparing voltage Vc1.
JP5549079A 1979-05-07 1979-05-07 Analogue-digital converting circuit Pending JPS55147828A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5549079A JPS55147828A (en) 1979-05-07 1979-05-07 Analogue-digital converting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5549079A JPS55147828A (en) 1979-05-07 1979-05-07 Analogue-digital converting circuit

Publications (1)

Publication Number Publication Date
JPS55147828A true JPS55147828A (en) 1980-11-18

Family

ID=13000063

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5549079A Pending JPS55147828A (en) 1979-05-07 1979-05-07 Analogue-digital converting circuit

Country Status (1)

Country Link
JP (1) JPS55147828A (en)

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