JPS5576449A - Fault diagnosis method for signal converter circuit - Google Patents
Fault diagnosis method for signal converter circuitInfo
- Publication number
- JPS5576449A JPS5576449A JP14794678A JP14794678A JPS5576449A JP S5576449 A JPS5576449 A JP S5576449A JP 14794678 A JP14794678 A JP 14794678A JP 14794678 A JP14794678 A JP 14794678A JP S5576449 A JPS5576449 A JP S5576449A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- fault diagnosis
- signal
- converter circuit
- signal 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.)
- Granted
Links
Landscapes
- Tests Of Electronic Circuits (AREA)
- Test And Diagnosis Of Digital Computers (AREA)
Abstract
PURPOSE: To secure the fault diagnosis for the signal converter circuit through a simple method by varying the reference voltage of the comparator circuit and then securing the same state when the pseudo input signal is applied equivalently.
CONSTITUTION: Voltage veriable setting circuit 100 consists of switch elements 17 and 18, inverter 21 plus resistors R5 and R8, and then varies reference voltage ES of comparator circuits 1aW1n via pseudo input set signal 19 sent from the computer. In other words, the two active states of the external contact are taken into the input terminal of one side of comparators 1aW1n in the form of the scale of the voltage signal, and reference voltage ES set to the middle of the two voltage signals is applied to the input terminal of the other side. Then voltage ES is changed to the voltage level different from the steady state, and the output of the comparator at that time is compared with the data set previously to carry out the fault diagnosis. Thus the state identical to that obtained by applying the pseudo input signal equivalently is secured, ensuring the fault diagnosis for the signal converter circuit through a simple method.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53147946A JPS5855533B2 (en) | 1978-12-01 | 1978-12-01 | Failure diagnosis method for signal conversion circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53147946A JPS5855533B2 (en) | 1978-12-01 | 1978-12-01 | Failure diagnosis method for signal conversion circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5576449A true JPS5576449A (en) | 1980-06-09 |
JPS5855533B2 JPS5855533B2 (en) | 1983-12-10 |
Family
ID=15441632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53147946A Expired JPS5855533B2 (en) | 1978-12-01 | 1978-12-01 | Failure diagnosis method for signal conversion circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5855533B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115574854A (en) * | 2022-12-05 | 2023-01-06 | 泉州昆泰芯微电子科技有限公司 | Fault diagnosis circuit device, fault diagnosis method, computer, storage medium, and program |
-
1978
- 1978-12-01 JP JP53147946A patent/JPS5855533B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115574854A (en) * | 2022-12-05 | 2023-01-06 | 泉州昆泰芯微电子科技有限公司 | Fault diagnosis circuit device, fault diagnosis method, computer, storage medium, and program |
CN115574854B (en) * | 2022-12-05 | 2023-04-11 | 泉州昆泰芯微电子科技有限公司 | Fault diagnosis circuit device, fault diagnosis method, computer, storage medium, and program |
Also Published As
Publication number | Publication date |
---|---|
JPS5855533B2 (en) | 1983-12-10 |
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