JPS5680718A - Oscillation prevention system - Google Patents
Oscillation prevention systemInfo
- Publication number
- JPS5680718A JPS5680718A JP15786079A JP15786079A JPS5680718A JP S5680718 A JPS5680718 A JP S5680718A JP 15786079 A JP15786079 A JP 15786079A JP 15786079 A JP15786079 A JP 15786079A JP S5680718 A JPS5680718 A JP S5680718A
- Authority
- JP
- Japan
- Prior art keywords
- output
- flip
- maintenance
- signal
- flop
- 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
Abstract
PURPOSE: To prevent a maintenance operating circuit from oscillating by controlling two outputs regarding a maintenance operation signal so that one output of them is delayed.
CONSTITUTION: Control signal C is obtained by operating flip-flop 3 via an adapter device and inverters 1 and 2 either by switching switch SW of a maintenance panel or with remote switch signal (RSW). Between flip-flop FFO of the adapter device and drivers 13 and 14, a delaying circuit consisting of counter 12, flip-flop circuits FF1 and FF2, and OR circuits OR1WOR3 is provided. When the output of FF0 is inverted through the operation of the maintenance panel or inversion of signal RSW, output (a) or (b) of driver 13 or 14 is delayed by the output of the delaying circuit, and consequently both inputs J and K of JKFF3 are never held at "0" or "1" at the same time, preventing oscillation.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15786079A JPS5680718A (en) | 1979-12-05 | 1979-12-05 | Oscillation prevention system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15786079A JPS5680718A (en) | 1979-12-05 | 1979-12-05 | Oscillation prevention system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5680718A true JPS5680718A (en) | 1981-07-02 |
Family
ID=15658959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15786079A Pending JPS5680718A (en) | 1979-12-05 | 1979-12-05 | Oscillation prevention system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5680718A (en) |
-
1979
- 1979-12-05 JP JP15786079A patent/JPS5680718A/en active Pending
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