JPS5778218A - Discrimination system - Google Patents
Discrimination systemInfo
- Publication number
- JPS5778218A JPS5778218A JP55154261A JP15426180A JPS5778218A JP S5778218 A JPS5778218 A JP S5778218A JP 55154261 A JP55154261 A JP 55154261A JP 15426180 A JP15426180 A JP 15426180A JP S5778218 A JPS5778218 A JP S5778218A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- switch element
- load
- gate
- output
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Electronic Switches (AREA)
Abstract
PURPOSE:To discriminate the normality of abnormality of a load with a simple circuit constitution, by inverting a control signal, which turns on and off a switch element, for a short time and by monitoring the state of a monitor signal obtained from the connection point between the load and the switch element. CONSTITUTION:A monitor signal SM obtained through a resistance R1 from a connection point A between a load lamp 1 and a switch element 2 of series connection is inputted to an exclusive OR gate 3. A signal SC which turns on and off the switch element 2 is inputted to the gate 3 also. If the load 1 and the switch element 2 are normal, the signal SM is 0 when the signal SC is 1, and the signal SM is 1 when the signal SC is 0. If the load 1 is disconnected or the switch element 2 is short-circuited, the signal SM is 1; and if the load is short-circuited or the switch element 2 is disconnected, the signal SM is 0. If the signal SC is changed from 1 to 0 or from 0 to 1 for a short time, an FF6 is reset when an output signal SE of the gate 3 is changed from 1 to 0, and thus the abnormality of the load and the switch element is discriminated when the Q output of the FF6 is 1; and a fault of either of the load and the switch element is discrminated when the Q output is 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55154261A JPS5778218A (en) | 1980-10-31 | 1980-10-31 | Discrimination system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55154261A JPS5778218A (en) | 1980-10-31 | 1980-10-31 | Discrimination system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5778218A true JPS5778218A (en) | 1982-05-15 |
Family
ID=15580319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55154261A Pending JPS5778218A (en) | 1980-10-31 | 1980-10-31 | Discrimination system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5778218A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60176326A (en) * | 1984-02-22 | 1985-09-10 | Nec Corp | Microwave band high speed fet switch |
| JPS62172680A (en) * | 1986-01-22 | 1987-07-29 | ノ−ドソン コ−ポレ−シヨン | Detection of performance degradation of heater, circuit and temperature sensor in hot-melting heater and inspection of channel connection |
| JPS62152274U (en) * | 1986-03-19 | 1987-09-26 | ||
| JPH0591604U (en) * | 1983-09-19 | 1993-12-14 | イブ ロベルト | Ophthalmic device |
-
1980
- 1980-10-31 JP JP55154261A patent/JPS5778218A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0591604U (en) * | 1983-09-19 | 1993-12-14 | イブ ロベルト | Ophthalmic device |
| JPS60176326A (en) * | 1984-02-22 | 1985-09-10 | Nec Corp | Microwave band high speed fet switch |
| JPS62172680A (en) * | 1986-01-22 | 1987-07-29 | ノ−ドソン コ−ポレ−シヨン | Detection of performance degradation of heater, circuit and temperature sensor in hot-melting heater and inspection of channel connection |
| JPS62152274U (en) * | 1986-03-19 | 1987-09-26 | ||
| JPH0424457Y2 (en) * | 1986-03-19 | 1992-06-09 |
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