JPS55103074A - Phase controlling synchronization circuit - Google Patents
Phase controlling synchronization circuitInfo
- Publication number
- JPS55103074A JPS55103074A JP1087079A JP1087079A JPS55103074A JP S55103074 A JPS55103074 A JP S55103074A JP 1087079 A JP1087079 A JP 1087079A JP 1087079 A JP1087079 A JP 1087079A JP S55103074 A JPS55103074 A JP S55103074A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- filter
- transformer
- synchronized
- changed
- 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
- Power Conversion In General (AREA)
Abstract
PURPOSE: To perform stabilization and attain a high accuracy through a very simple circuit, by prescribing the constants of a phase transformer and an AC filter.
CONSTITUTION: Power voltage 1 is used to energize a polyphase thyristor converter. The power voltage is changed by a phase transformer 12 into a phase appropriate for synchronization of phase control. The changed voltage is shaped by an AC filter 13. The filtering time constant of the filter 13 is made large enough to set a phase delay angle of almost 90°. As a result, the phase delay angle is always in the vicinity of -90° despite frequency change. Thus, a phase control synchronization signal can be produced by generating the output signal 11 of a ring counter 8 synchronized with the output of the AC filter. A signal delayed by about 90° by the AC filter 13 is converted by the AC transformer 12 into a phase convenient for the controlling of the thyristor converter and is therefore synchronized.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1087079A JPS55103074A (en) | 1979-01-31 | 1979-01-31 | Phase controlling synchronization circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1087079A JPS55103074A (en) | 1979-01-31 | 1979-01-31 | Phase controlling synchronization circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55103074A true JPS55103074A (en) | 1980-08-06 |
JPS61988B2 JPS61988B2 (en) | 1986-01-13 |
Family
ID=11762367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1087079A Granted JPS55103074A (en) | 1979-01-31 | 1979-01-31 | Phase controlling synchronization circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55103074A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH056153Y2 (en) * | 1987-03-09 | 1993-02-17 | ||
JPH058155Y2 (en) * | 1987-03-09 | 1993-03-01 |
-
1979
- 1979-01-31 JP JP1087079A patent/JPS55103074A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS61988B2 (en) | 1986-01-13 |
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