JPS5734217A - Constant voltage apparatus - Google Patents
Constant voltage apparatusInfo
- Publication number
- JPS5734217A JPS5734217A JP10969480A JP10969480A JPS5734217A JP S5734217 A JPS5734217 A JP S5734217A JP 10969480 A JP10969480 A JP 10969480A JP 10969480 A JP10969480 A JP 10969480A JP S5734217 A JPS5734217 A JP S5734217A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- transistor
- switch
- control
- 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
- G05F1/59—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 including plural semiconductor devices as final control devices for a single load
- G05F1/595—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 including plural semiconductor devices as final control devices for a single load semiconductor devices connected in series
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
PURPOSE:To improve reliability by connecting control transistors for the 1st and 2nd control circuits between a load and a DC current source to control only one transistor when the other transistor gets out of order. CONSTITUTION:Control transistors 2 and 7 for the 1st and 2nd control circuits are installed between a load 3 and a DC current source 1 and a switch 12 is closed at normal status; an output voltage detecting circuit 13 outputs an opening signal to the switch 12 when the voltage of A of the circuit 13 exceeds the voltage of B of the circuit 13 only by a fixed value and outputs a closing signal when the voltage is reduced under the fixed value. If the 2nd transistor is conducted because of failure, it is decided that the voltage of A of the circuit 13 exceeds the voltage of B of the circuit 13, so that the switch 12 is closed. Thus, even if the 2nd transistor 2 is conducted, the output voltage can be controlled within a required voltage by inserting a voltage dividing resistance.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10969480A JPS5734217A (en) | 1980-08-07 | 1980-08-07 | Constant voltage apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10969480A JPS5734217A (en) | 1980-08-07 | 1980-08-07 | Constant voltage apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5734217A true JPS5734217A (en) | 1982-02-24 |
Family
ID=14516824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10969480A Pending JPS5734217A (en) | 1980-08-07 | 1980-08-07 | Constant voltage apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5734217A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4881023A (en) * | 1988-03-04 | 1989-11-14 | Hughes Aircraft Company | Hybrid high speed voltage regulator with reduction of miller effect |
US5329224A (en) * | 1993-10-20 | 1994-07-12 | Ford Motor Company | Automotive voltage regulator circuit including serial voltage regulators |
JP2010211788A (en) * | 2009-02-10 | 2010-09-24 | Seiko Instruments Inc | Voltage regulator |
DE102018200668A1 (en) * | 2018-01-17 | 2019-07-18 | Robert Bosch Gmbh | Circuit for detecting circuit defects and avoiding overvoltages in regulators |
-
1980
- 1980-08-07 JP JP10969480A patent/JPS5734217A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4881023A (en) * | 1988-03-04 | 1989-11-14 | Hughes Aircraft Company | Hybrid high speed voltage regulator with reduction of miller effect |
US5329224A (en) * | 1993-10-20 | 1994-07-12 | Ford Motor Company | Automotive voltage regulator circuit including serial voltage regulators |
JP2010211788A (en) * | 2009-02-10 | 2010-09-24 | Seiko Instruments Inc | Voltage regulator |
DE102018200668A1 (en) * | 2018-01-17 | 2019-07-18 | Robert Bosch Gmbh | Circuit for detecting circuit defects and avoiding overvoltages in regulators |
US11281246B2 (en) | 2018-01-17 | 2022-03-22 | Robert Bosch Gmbh | Circuit for detecting circuit defects and for preventing overvoltages in controllers |
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