JPS57203134A - Analog inputting device - Google Patents

Analog inputting device

Info

Publication number
JPS57203134A
JPS57203134A JP8749881A JP8749881A JPS57203134A JP S57203134 A JPS57203134 A JP S57203134A JP 8749881 A JP8749881 A JP 8749881A JP 8749881 A JP8749881 A JP 8749881A JP S57203134 A JPS57203134 A JP S57203134A
Authority
JP
Japan
Prior art keywords
input
value
amp1
inputted
amplified
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
JP8749881A
Other languages
Japanese (ja)
Inventor
Masayuki Murakami
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP8749881A priority Critical patent/JPS57203134A/en
Publication of JPS57203134A publication Critical patent/JPS57203134A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/05—Digital input using the sampling of an analogue quantity at regular intervals of time, input from a/d converter or output to d/a converter

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE:To calibrate an input value with the newest calibration value, by avoiding the interruption of an input request through the use of duplcated two analog sections alternately and diagnosing an amplifier at each input. CONSTITUTION:Through the selective operation of a multiplexer MX5a, a value of an input point CH1 is inputted to an AMP1, amplified in to alpha times by a gain, and converte into a digital signal at an AD converter ADC#1. When the A/D conversion is finished, changeover switches 6a and 6b are switched, a reference voltage for gain alpha calibration from a reference voltage source 4a is selected at a MX5b and inputted to the AMP1. The input volue is amplified into alpha times at the AMP1, A/D-converted at the ADC#1, and the diagnosis of the AMP1 and the calibration of the input value at the input of CH1 are made at a control section 7a, and the calibrated value is transmitted to a CPU8. At the same time, the value of an input point CH2 is selected at the switch 6b and inputted to an AMP2, amplified into beta times, and A/D-converted at an ADC#2. When the A/D conversion is finished, the switches 6a and 6b are switched and similar operations are performed one after another.
JP8749881A 1981-06-09 1981-06-09 Analog inputting device Pending JPS57203134A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8749881A JPS57203134A (en) 1981-06-09 1981-06-09 Analog inputting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8749881A JPS57203134A (en) 1981-06-09 1981-06-09 Analog inputting device

Publications (1)

Publication Number Publication Date
JPS57203134A true JPS57203134A (en) 1982-12-13

Family

ID=13916631

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8749881A Pending JPS57203134A (en) 1981-06-09 1981-06-09 Analog inputting device

Country Status (1)

Country Link
JP (1) JPS57203134A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0283612A (en) * 1988-09-20 1990-03-23 Rohm Co Ltd Input circuit for microcontroller
JPH03205921A (en) * 1990-01-08 1991-09-09 Hitachi Denshi Ltd Digitizer circuit
JP2008131298A (en) * 2006-11-20 2008-06-05 Fyuutorekku:Kk Analog/digital conversion device, and analog/digital conversion correction method
JP2009105553A (en) * 2007-10-22 2009-05-14 Denso Corp Apparatus for detecting failure in ad conversion device
JP2011002464A (en) * 1999-07-28 2011-01-06 Furuno Electric Co Ltd Signal processing apparatus, and sonar system
JP2015522995A (en) * 2012-05-24 2015-08-06 フェニックス コンタクト ゲーエムベーハー ウント コムパニー カーゲー Analog signal input circuit having a plurality of analog signal detection channels
CN110531296A (en) * 2019-08-09 2019-12-03 格威半导体(厦门)有限公司 The gain calibration methods thereof of battery management system
WO2022137705A1 (en) * 2020-12-22 2022-06-30 日立Astemo株式会社 Voltage detection circuit

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0283612A (en) * 1988-09-20 1990-03-23 Rohm Co Ltd Input circuit for microcontroller
JPH03205921A (en) * 1990-01-08 1991-09-09 Hitachi Denshi Ltd Digitizer circuit
JP2011002464A (en) * 1999-07-28 2011-01-06 Furuno Electric Co Ltd Signal processing apparatus, and sonar system
JP2008131298A (en) * 2006-11-20 2008-06-05 Fyuutorekku:Kk Analog/digital conversion device, and analog/digital conversion correction method
JP2009105553A (en) * 2007-10-22 2009-05-14 Denso Corp Apparatus for detecting failure in ad conversion device
JP2015522995A (en) * 2012-05-24 2015-08-06 フェニックス コンタクト ゲーエムベーハー ウント コムパニー カーゲー Analog signal input circuit having a plurality of analog signal detection channels
US9658267B2 (en) 2012-05-24 2017-05-23 Phoenix Contact Gmbh & Co. Kg Analog signal input circuit to process analog input signals for the safety of a process
CN110531296A (en) * 2019-08-09 2019-12-03 格威半导体(厦门)有限公司 The gain calibration methods thereof of battery management system
WO2022137705A1 (en) * 2020-12-22 2022-06-30 日立Astemo株式会社 Voltage detection circuit

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