JPS5635225A - Direct current stabilizing power supply unit - Google Patents
Direct current stabilizing power supply unitInfo
- Publication number
- JPS5635225A JPS5635225A JP11149279A JP11149279A JPS5635225A JP S5635225 A JPS5635225 A JP S5635225A JP 11149279 A JP11149279 A JP 11149279A JP 11149279 A JP11149279 A JP 11149279A JP S5635225 A JPS5635225 A JP S5635225A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- supply unit
- power supply
- stabilizing power
- 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
- Control Of Voltage And Current In General (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
PURPOSE: To increase the reliability as well as realize a low cost for the DC stabilizing power supply unit, by supplying the reference voltate to be applied to the error amplifying circuit and the protective circuit from the same voltage source.
CONSTITUTION: The error amplifying circuit A1, the overvoltage detecting circuit C1 and the low voltage detecting circuit C2 are incorporated into the same integrated circuit. And at the same time, each reference voltage is supplied from the stabilizing power source VC via the bleeder resistances R1WR6. In such constitution, the detecting circuit works with the voltage set through the resistances R1W R6 to the output voltage at the normal time although the output voltage VOUT may become abnormal. Accordingly, the detection voltage of the protective circuit has not be controlled newly if the R1WR6 are set in a proper relation. And the relative ratio of each reference voltage is decided only by the relative ratio of the R1WR6, and thus a sufficiently high-accuracy setting is possible with the resistance within the element of the integrated circuit. In such way, not only the enhancement of reliability but a low cost can be realized for the power supply unit.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11149279A JPS5635225A (en) | 1979-08-30 | 1979-08-30 | Direct current stabilizing power supply unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11149279A JPS5635225A (en) | 1979-08-30 | 1979-08-30 | Direct current stabilizing power supply unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5635225A true JPS5635225A (en) | 1981-04-07 |
JPS6410844B2 JPS6410844B2 (en) | 1989-02-22 |
Family
ID=14562635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11149279A Granted JPS5635225A (en) | 1979-08-30 | 1979-08-30 | Direct current stabilizing power supply unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5635225A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5923808U (en) * | 1982-07-30 | 1984-02-14 | 日本電気株式会社 | power circuit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5192639U (en) * | 1975-01-24 | 1976-07-24 |
-
1979
- 1979-08-30 JP JP11149279A patent/JPS5635225A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5192639U (en) * | 1975-01-24 | 1976-07-24 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5923808U (en) * | 1982-07-30 | 1984-02-14 | 日本電気株式会社 | power circuit |
Also Published As
Publication number | Publication date |
---|---|
JPS6410844B2 (en) | 1989-02-22 |
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