JPS6410310A - Limiting circuit for safe working area - Google Patents
Limiting circuit for safe working areaInfo
- Publication number
- JPS6410310A JPS6410310A JP62167252A JP16725287A JPS6410310A JP S6410310 A JPS6410310 A JP S6410310A JP 62167252 A JP62167252 A JP 62167252A JP 16725287 A JP16725287 A JP 16725287A JP S6410310 A JPS6410310 A JP S6410310A
- Authority
- JP
- Japan
- Prior art keywords
- output
- current
- short
- output voltage
- turned
- 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
- Direct Current Feeding And Distribution (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
- Amplifiers (AREA)
Abstract
PURPOSE:To reduce a short-circuit current and then the generation of heat by adding a function which detects the drop of the output voltage and changes the bias state to a current limiting transistor. CONSTITUTION:The output of a comparator 20 has a low level when the output voltage is higher than a prescribed level and therefore both transistors (TR) 119 and TR 4 are turned off. Thus the difference characteristics between a peak output current and the input/output voltage can draw a sufficient output current even to the input voltage of a high level. Then the output of the comparator 20 is changed to a high level and both TR 19 and TR 4 are turned on when a current limiting Tr 9 is actuated by the overload (output short circuit, etc.) and the output voltage drops. Thus a resistance 2 is short-circuited and the TR 9 is further turned on the therefore an output short-circuit current can be extremely reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62167252A JPS6410310A (en) | 1987-07-03 | 1987-07-03 | Limiting circuit for safe working area |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62167252A JPS6410310A (en) | 1987-07-03 | 1987-07-03 | Limiting circuit for safe working area |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6410310A true JPS6410310A (en) | 1989-01-13 |
Family
ID=15846282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62167252A Pending JPS6410310A (en) | 1987-07-03 | 1987-07-03 | Limiting circuit for safe working area |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6410310A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6812091B1 (en) | 2000-09-26 | 2004-11-02 | Infineon Technologies Ag | Trench capacitor memory cell |
-
1987
- 1987-07-03 JP JP62167252A patent/JPS6410310A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6812091B1 (en) | 2000-09-26 | 2004-11-02 | Infineon Technologies Ag | Trench capacitor memory cell |
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