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JPS56168203A - Analog output device - Google Patents

Analog output device

Info

Publication number
JPS56168203A
JPS56168203A JP7298680A JP7298680A JPS56168203A JP S56168203 A JPS56168203 A JP S56168203A JP 7298680 A JP7298680 A JP 7298680A JP 7298680 A JP7298680 A JP 7298680A JP S56168203 A JPS56168203 A JP S56168203A
Authority
JP
Japan
Prior art keywords
sample
insulating transformer
voltage
output
analog
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
JP7298680A
Other languages
Japanese (ja)
Inventor
Seiichi Saito
Yoshihiro Nakao
Yoshio Maehana
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7298680A priority Critical patent/JPS56168203A/en
Publication of JPS56168203A publication Critical patent/JPS56168203A/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
    • H03M1/66—Digital/analogue converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Safety Devices In Control Systems (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE:To secure the isolation, by providing an insulating transformer between a chopper circuit and a sample-and-holding circuit. CONSTITUTION:Analog output voltage of a digital-to-analog converter 1 becomes square wave AC voltage by which analog voltage is made an envelope, by a chopper circuit 5, and is inputted to the primary side of an insulating transformer 6. An output of the secondary side of the insulating transformer 6 is sample-held by a sample- and-holding circuit 7. Timing signals T of the chopper circuit and the sample-and- holding circuit are synchronized, and also, said output is sample-held after output voltage of the secondary side of the insulating transformer has been stabilized sufficiently.
JP7298680A 1980-05-30 1980-05-30 Analog output device Pending JPS56168203A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7298680A JPS56168203A (en) 1980-05-30 1980-05-30 Analog output device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7298680A JPS56168203A (en) 1980-05-30 1980-05-30 Analog output device

Publications (1)

Publication Number Publication Date
JPS56168203A true JPS56168203A (en) 1981-12-24

Family

ID=13505216

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7298680A Pending JPS56168203A (en) 1980-05-30 1980-05-30 Analog output device

Country Status (1)

Country Link
JP (1) JPS56168203A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6072003A (en) * 1983-09-28 1985-04-24 Hitachi Ltd Control microcomputer
JPS6480824A (en) * 1987-09-24 1989-03-27 Takamisawa Cybernetics Sample holding circuit for ad converter of seismograph
JPH02121413A (en) * 1988-10-29 1990-05-09 Shinshirasuna Denki Kk Noise elimination circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6072003A (en) * 1983-09-28 1985-04-24 Hitachi Ltd Control microcomputer
JPS6480824A (en) * 1987-09-24 1989-03-27 Takamisawa Cybernetics Sample holding circuit for ad converter of seismograph
JPH02121413A (en) * 1988-10-29 1990-05-09 Shinshirasuna Denki Kk Noise elimination circuit

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