JPS554601A - Insulating analog input unit - Google Patents

Insulating analog input unit

Info

Publication number
JPS554601A
JPS554601A JP4215978A JP4215978A JPS554601A JP S554601 A JPS554601 A JP S554601A JP 4215978 A JP4215978 A JP 4215978A JP 4215978 A JP4215978 A JP 4215978A JP S554601 A JPS554601 A JP S554601A
Authority
JP
Japan
Prior art keywords
analog input
outputs
buffer amplifiers
summing
input unit
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
JP4215978A
Other languages
Japanese (ja)
Inventor
Takeshi Araki
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 JP4215978A priority Critical patent/JPS554601A/en
Publication of JPS554601A publication Critical patent/JPS554601A/en
Pending legal-status Critical Current

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  • Amplifiers (AREA)

Abstract

PURPOSE: To obtain high reliability by rapidly sampling analog input data by providing summing resistances whose load resistance ratio is specified for summing outputs of both buffer amplifiers and by leading this sum output to an AD converter.
CONSTITUTION: An analog input is converted into an AC waveform by DC-AC converters (P1, M1, M2, F1, and A1) and (P2, M3, M4, F2, and A1) and both positive and negative waveforms of converted AC are rectified by synchronous rectifiers (D1 and C1) and (D2 and C2), whose rectification outputs are amplified by buffer amplifiers B1 and B2 respectively. In order to sum the outputs of both the buffer amplifiers, summing resistances R1 and R2 whose load resistance ratio is specified are provided and this sum output is led to AD converter AD1. Consequently, an analog input data is rapidly sampled to obtain high reliability.
COPYRIGHT: (C)1980,JPO&Japio
JP4215978A 1978-04-12 1978-04-12 Insulating analog input unit Pending JPS554601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4215978A JPS554601A (en) 1978-04-12 1978-04-12 Insulating analog input unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4215978A JPS554601A (en) 1978-04-12 1978-04-12 Insulating analog input unit

Publications (1)

Publication Number Publication Date
JPS554601A true JPS554601A (en) 1980-01-14

Family

ID=12628160

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4215978A Pending JPS554601A (en) 1978-04-12 1978-04-12 Insulating analog input unit

Country Status (1)

Country Link
JP (1) JPS554601A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6130106A (en) * 1984-07-21 1986-02-12 Anarogu Debaisezu Kk Insulating amplifier
JPS61218210A (en) * 1985-03-25 1986-09-27 Stanley Electric Co Ltd Isolate amplifier
JPS62184468U (en) * 1986-05-13 1987-11-24
EP3587393A1 (en) 2018-06-21 2020-01-01 F.I.S.- Fabbrica Italiana Sintetici S.p.A. Enzymatic process for the preparation of droxidopa

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6130106A (en) * 1984-07-21 1986-02-12 Anarogu Debaisezu Kk Insulating amplifier
JPH0370928B2 (en) * 1984-07-21 1991-11-11 Analog Devices Inc
JPS61218210A (en) * 1985-03-25 1986-09-27 Stanley Electric Co Ltd Isolate amplifier
JPS62184468U (en) * 1986-05-13 1987-11-24
EP3587393A1 (en) 2018-06-21 2020-01-01 F.I.S.- Fabbrica Italiana Sintetici S.p.A. Enzymatic process for the preparation of droxidopa

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