JPS55124329A - Power circuit - Google Patents
Power circuitInfo
- Publication number
- JPS55124329A JPS55124329A JP3107979A JP3107979A JPS55124329A JP S55124329 A JPS55124329 A JP S55124329A JP 3107979 A JP3107979 A JP 3107979A JP 3107979 A JP3107979 A JP 3107979A JP S55124329 A JPS55124329 A JP S55124329A
- Authority
- JP
- Japan
- Prior art keywords
- logic
- power source
- circuit
- stabilized
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/577—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices for plural loads
Landscapes
- Engineering & Computer Science (AREA)
- Logic Circuits (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Electronic Switches (AREA)
Abstract
PURPOSE:To stabilize the operation as well as realize a small size for the power circuit without using the relay or the like, by carrying out the make-break sequence for the power circuit possessing the logic (for logic circuit driving) power source and the stabilized driving power source by controlling the stabilized transistor of the driving power source via the voltage value of the logic power source. CONSTITUTION:The AC voltage supplied to transformer 1 is rectified through rectifying circuits 2 and 3, and the DC output rectified at circuits 2 and 3 is stabilized through stabilizing circuits 5 and 8 to be delivered in the form of the logic power output and the driving power output each. Detection circuit 7 is connected to circuit 5 at the side of the logic power output in order to detect the voltage value of the logic power source. When the stabilized voltage of the logic power source is detected by comparator 7a provided at circuit 7, the output of comparator 7a is applied to the base of control transistor TR2. And the base of stabilized TR1 is controlled by the voltage of TR2 to cut off the current flowing to the load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3107979A JPS55124329A (en) | 1979-03-19 | 1979-03-19 | Power circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3107979A JPS55124329A (en) | 1979-03-19 | 1979-03-19 | Power circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55124329A true JPS55124329A (en) | 1980-09-25 |
Family
ID=12321414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3107979A Pending JPS55124329A (en) | 1979-03-19 | 1979-03-19 | Power circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55124329A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0063611A1 (en) * | 1980-10-29 | 1982-11-03 | Fanuc Ltd. | Electric power source for a control unit |
| JPS58129747U (en) * | 1982-02-19 | 1983-09-02 | 日本コロムビア株式会社 | Electronic switch priority circuit |
-
1979
- 1979-03-19 JP JP3107979A patent/JPS55124329A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0063611A1 (en) * | 1980-10-29 | 1982-11-03 | Fanuc Ltd. | Electric power source for a control unit |
| JPS58129747U (en) * | 1982-02-19 | 1983-09-02 | 日本コロムビア株式会社 | Electronic switch priority circuit |
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