JPS5613539A - Electric-power turning-off circuit - Google Patents
Electric-power turning-off circuitInfo
- Publication number
- JPS5613539A JPS5613539A JP9004679A JP9004679A JPS5613539A JP S5613539 A JPS5613539 A JP S5613539A JP 9004679 A JP9004679 A JP 9004679A JP 9004679 A JP9004679 A JP 9004679A JP S5613539 A JPS5613539 A JP S5613539A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- transistor
- turns
- capacitor
- circuit
- 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 load from being applied with an unstable voltage by immediately discharging a voltage supply capacitor, connected to a resistance in series, through a transistor that turns off on a voltage drop.
CONSTITUTION: A fixed voltage at point A is supplied to a load such as decoder 9 through capacitor C2 connected in series to resistance R1. As the voltage of electric power circuit 22 falls, transistor Q2 of turning-off circuit 17 turns off immediately and transistor Q3 also turns off. Consequently, the electric charge of capacitor C3 turns on transistor Q4 and capacitor C2 is immediately discharged. As a result, the load is prevented from being applied with an unstable voltage, preventing malfunction.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9004679A JPS5613539A (en) | 1979-07-16 | 1979-07-16 | Electric-power turning-off circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9004679A JPS5613539A (en) | 1979-07-16 | 1979-07-16 | Electric-power turning-off circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5613539A true JPS5613539A (en) | 1981-02-09 |
Family
ID=13987680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9004679A Pending JPS5613539A (en) | 1979-07-16 | 1979-07-16 | Electric-power turning-off circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5613539A (en) |
-
1979
- 1979-07-16 JP JP9004679A patent/JPS5613539A/en active Pending
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