JPS55138659A - Analog input unit - Google Patents
Analog input unitInfo
- Publication number
- JPS55138659A JPS55138659A JP4603979A JP4603979A JPS55138659A JP S55138659 A JPS55138659 A JP S55138659A JP 4603979 A JP4603979 A JP 4603979A JP 4603979 A JP4603979 A JP 4603979A JP S55138659 A JPS55138659 A JP S55138659A
- Authority
- JP
- Japan
- Prior art keywords
- input unit
- analog input
- timing controller
- amplifier
- converter
- 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
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
PURPOSE: To obtain the high-speed analog input unit of high packaging density and superior input accuracy by eliminating the effect of spike noise upon a AC-DC converter and using the same for the analog input unit.
CONSTITUTION: Modulating switches 9, 10 are alternately turned ON and OFF by the read command from a timing controller 22 to input the output of a bridge circuit into a pulse transformer 3 and amplifier 12. Demodulating switches 13, 14 are turned ON by the timing control generated by a timing controller 22 only during 25% before and after the center of the flat part of the output of an amplifier 12. This signal is differentially amplified 19 and is subjected to A-D conversion by the A-D converter 23 in the timing controller 22.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4603979A JPS55138659A (en) | 1979-04-17 | 1979-04-17 | Analog input unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4603979A JPS55138659A (en) | 1979-04-17 | 1979-04-17 | Analog input unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55138659A true JPS55138659A (en) | 1980-10-29 |
Family
ID=12735883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4603979A Pending JPS55138659A (en) | 1979-04-17 | 1979-04-17 | Analog input unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55138659A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010203912A (en) * | 2009-03-03 | 2010-09-16 | Yamatake Corp | State detection device |
JP2017106931A (en) * | 2011-04-01 | 2017-06-15 | ローム株式会社 | Temperature detection device |
-
1979
- 1979-04-17 JP JP4603979A patent/JPS55138659A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010203912A (en) * | 2009-03-03 | 2010-09-16 | Yamatake Corp | State detection device |
JP2017106931A (en) * | 2011-04-01 | 2017-06-15 | ローム株式会社 | Temperature detection device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5672510A (en) | Muting circuit | |
JPS55138659A (en) | Analog input unit | |
JPS5429959A (en) | A-d converter | |
JPS5365645A (en) | Field effect transistor amplifier circuit | |
JPS56146473A (en) | Power steering controller with safety circuit | |
JPS558656A (en) | Sample hold circuit | |
JPS52134481A (en) | Piezo-electric conversion device | |
JPS51143181A (en) | Process controller | |
JPS5440540A (en) | Isolator | |
JPS5573970A (en) | Automatic gain control system | |
JPS5421511A (en) | Speed controller for dc motor | |
JPS53102772A (en) | Analog recorder | |
JPS5250771A (en) | Frequency-to-dc voltage conversion method | |
JPS52127367A (en) | Circuit for detecting maximal minimum value and minamal maximum value | |
JPS544556A (en) | Counter type encoder | |
JPS5374239A (en) | Power converting device | |
JPS5425660A (en) | Peak value detection circuit | |
JPS52111361A (en) | Analog to digital converter | |
JPS5226875A (en) | Detection circuit | |
JPS5237685A (en) | Servo amplifier | |
JPS5315858A (en) | Spectrum analyzer | |
JPS5467638A (en) | Frequency converter | |
JPS5240011A (en) | Orthogonal converting device | |
JPS544058A (en) | Analog to digital converter of integration type | |
JPS5219580A (en) | Peak detecting system |