JPS57206940A - Feedback type output controlling device - Google Patents
Feedback type output controlling deviceInfo
- Publication number
- JPS57206940A JPS57206940A JP9138781A JP9138781A JPS57206940A JP S57206940 A JPS57206940 A JP S57206940A JP 9138781 A JP9138781 A JP 9138781A JP 9138781 A JP9138781 A JP 9138781A JP S57206940 A JPS57206940 A JP S57206940A
- Authority
- JP
- Japan
- Prior art keywords
- output
- detector
- controlling device
- feedback type
- type 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.)
- Granted
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
- G05F1/575—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 characterised by the feedback circuit
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Control Of Voltage And Current In General (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
PURPOSE:To precisely protect a main control element or a load by connecting an auxiliary electric power source having comparatively large series impedance in parallel to a feedback signal to be compared with an output setting signal at the same polarity as the feedback signal. CONSTITUTION:An auxiliary electric power source 7 with the same polarity as an output current detector 4 and an impedance element 8 connected in series to the auxiliary device 7 are connected in parallel to the detector 4. A comparator 9 compares an output signal of an output current setter 6 with an output of the detector 4 and the differential output is inputted to a driving circuit 10. The connection rate of a main controlling element is determined by an output of the driving circuit 10.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9138781A JPS57206940A (en) | 1981-06-12 | 1981-06-12 | Feedback type output controlling device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9138781A JPS57206940A (en) | 1981-06-12 | 1981-06-12 | Feedback type output controlling device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57206940A true JPS57206940A (en) | 1982-12-18 |
JPH0235327B2 JPH0235327B2 (en) | 1990-08-09 |
Family
ID=14024959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9138781A Granted JPS57206940A (en) | 1981-06-12 | 1981-06-12 | Feedback type output controlling device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57206940A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06162534A (en) * | 1992-11-26 | 1994-06-10 | Sanyo Electric Co Ltd | Device for driving objective lens |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4924021U (en) * | 1972-05-31 | 1974-03-01 |
-
1981
- 1981-06-12 JP JP9138781A patent/JPS57206940A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4924021U (en) * | 1972-05-31 | 1974-03-01 |
Also Published As
Publication number | Publication date |
---|---|
JPH0235327B2 (en) | 1990-08-09 |
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