JPS57152015A - Voltage setting device - Google Patents
Voltage setting deviceInfo
- Publication number
- JPS57152015A JPS57152015A JP3887081A JP3887081A JPS57152015A JP S57152015 A JPS57152015 A JP S57152015A JP 3887081 A JP3887081 A JP 3887081A JP 3887081 A JP3887081 A JP 3887081A JP S57152015 A JPS57152015 A JP S57152015A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- transformer
- amplifier
- fluctuation
- terminal
- 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
- G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
- G05F1/14—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices
- G05F1/147—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices with motor driven tap switch
- G05F1/153—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices with motor driven tap switch controlled by discharge tubes or semiconductor devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Control Of Electrical Variables (AREA)
Abstract
PURPOSE:To set a voltage value with high accuracy, by controlling a driving motor for an electromotive transformer which operates windings split into two summetrically for the feedback correction of the fluctuation of secondary voltage of the transformer. CONSTITUTION:In a thermal device such as a welder, an AC power supply 1 is connected to a primary terminal 4 of an eletromotive transformer 16 and a load 30 is connected to a secondary terminal 5 set to a specified voltage. A welding condition code inputted to the terminal 15 is converted into an analog signal at a D/A converter 12 via a register 14 and a selector 13 and given to a control amplifier 8. The amplifier 8 reduces voltage fluctuation and makes a spedified amplification via an error amplifier 7, applies a DC voltage of both polarities to motors 2 and 2' of the same standards, drives the slider of the transformer 16 symmetrically at the same time and gives a specified voltage to the load. The amplifier 7 inputs the fluctuation voltage at the secondary of the transformer 16 via an absolute circuit 6 and an external signal from the amplifier 8 for amplification to achieve feedback correction in high speed through the motor drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3887081A JPS57152015A (en) | 1981-03-17 | 1981-03-17 | Voltage setting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3887081A JPS57152015A (en) | 1981-03-17 | 1981-03-17 | Voltage setting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57152015A true JPS57152015A (en) | 1982-09-20 |
Family
ID=12537241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3887081A Pending JPS57152015A (en) | 1981-03-17 | 1981-03-17 | Voltage setting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57152015A (en) |
-
1981
- 1981-03-17 JP JP3887081A patent/JPS57152015A/en active Pending
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