JPS6423766A - Voltage regulating circuit for power converter - Google Patents
Voltage regulating circuit for power converterInfo
- Publication number
- JPS6423766A JPS6423766A JP62177584A JP17758487A JPS6423766A JP S6423766 A JPS6423766 A JP S6423766A JP 62177584 A JP62177584 A JP 62177584A JP 17758487 A JP17758487 A JP 17758487A JP S6423766 A JPS6423766 A JP S6423766A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- voltage value
- input
- value
- inverter
- 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
- Inverter Devices (AREA)
Abstract
PURPOSE:To prevent excess current from being generated, by providing the input of the reversed polarity of a actual voltage value to a voltage regulating means, when power source side voltage is lowered to come to a specified value or less, with a voltage controlling loop due to proportional integration arithmetic units. CONSTITUTION:An inverter unit is composed of a rectifier 3, a smoothing capacitor 4, and a transistor inverter 5, and the AC power of desired voltage and frequency is fed to a load 6. To proportional integration arithmetic units 13A-13C, the input of a deviation between an actual voltage value from a potential transformer 11 and a desired voltage value from a voltage setting unit 12 is provided, and a voltage regulator 13 is composed, and control signal is applied to the inverter 5 via a base driving circuit 14. In this case, a signal switching circuit 22 and a polarity reversing circuit 23 are arranged. In this state, when it is detected that an AC power source 2 is of specified voltage or lower, then the desired voltage value from the voltage setting unit 12 is interrupted, and the input of the actual voltage value of reversed polarity from the polarity reversing circuit 23 is provided, and overvoltage at the time of voltage recovery can be avoided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62177584A JPH0789745B2 (en) | 1987-07-16 | 1987-07-16 | Voltage control circuit for power converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62177584A JPH0789745B2 (en) | 1987-07-16 | 1987-07-16 | Voltage control circuit for power converter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6423766A true JPS6423766A (en) | 1989-01-26 |
JPH0789745B2 JPH0789745B2 (en) | 1995-09-27 |
Family
ID=16033532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62177584A Expired - Lifetime JPH0789745B2 (en) | 1987-07-16 | 1987-07-16 | Voltage control circuit for power converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0789745B2 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5597194A (en) * | 1979-01-18 | 1980-07-24 | Toshiba Corp | Controlling system for power converter |
JPS60119896U (en) * | 1984-01-23 | 1985-08-13 | 株式会社明電舎 | Inverter voltage control circuit |
-
1987
- 1987-07-16 JP JP62177584A patent/JPH0789745B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5597194A (en) * | 1979-01-18 | 1980-07-24 | Toshiba Corp | Controlling system for power converter |
JPS60119896U (en) * | 1984-01-23 | 1985-08-13 | 株式会社明電舎 | Inverter voltage control circuit |
Also Published As
Publication number | Publication date |
---|---|
JPH0789745B2 (en) | 1995-09-27 |
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