JPS554601A - Insulating analog input unit - Google Patents
Insulating analog input unitInfo
- 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
Links
Landscapes
- 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
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)
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 |
-
1978
- 1978-04-12 JP JP4215978A patent/JPS554601A/en active Pending
Cited By (5)
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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