JPS6214984U - - Google Patents
Info
- Publication number
- JPS6214984U JPS6214984U JP10415985U JP10415985U JPS6214984U JP S6214984 U JPS6214984 U JP S6214984U JP 10415985 U JP10415985 U JP 10415985U JP 10415985 U JP10415985 U JP 10415985U JP S6214984 U JPS6214984 U JP S6214984U
- Authority
- JP
- Japan
- Prior art keywords
- connection circuit
- phase
- switching element
- forward converter
- circuit
- 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
- 239000004065 semiconductor Substances 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Rectifiers (AREA)
- Protection Of Static Devices (AREA)
- Motor And Converter Starters (AREA)
Description
第１図は本考案の技術思想の理解を容易にする
ため示した回路図、第２図は本考案による作用を
説明するため示した波形図、第３図は本考案が適
用された一実施例のゲート制御部を示した回路図
、第４図および第５図は従来の順変換器の過電流
保護回路を説明するため示した回路図および波形
図である。
１……三相交流電源、２……三相グレーツ結線
回路、４……自己消弧形サイリスタ、６，６′…
…ゲート制御回路、７，７′……ゲートブロツク
回路、９……移相器、１３……比較演算器、１４
……遅延回路、ＰＲＴ，ＰＲＴ′……ゲート制御
部。
Fig. 1 is a circuit diagram shown to facilitate understanding of the technical idea of the invention, Fig. 2 is a waveform diagram shown to explain the action of the invention, and Fig. 3 is an example of an implementation to which the invention is applied. FIGS. 4 and 5 are a circuit diagram showing an example gate control section, and FIGS. 4 and 5 are circuit diagrams and waveform diagrams shown to explain an overcurrent protection circuit of a conventional forward converter. 1... Three-phase AC power supply, 2... Three-phase Graetz connection circuit, 4... Self-extinguishing thyristor, 6, 6'...
...Gate control circuit, 7, 7'...Gate block circuit, 9...Phase shifter, 13...Comparison calculator, 14
...Delay circuit, PRT, PRT'...Gate control section.
Claims (1)
レーツ結線回路と、該三相グレーツ結線回路の直
流出力側に配された自己消弧形半導体スイツチン
グ素子とを少なくとも備えてなる順変換器におい
て、過電流検知に基づく前記三相グレーツ結線回
路へのみ非点弧指令を与える信号発生手段を設け
るようにしたことを特徴とする順変換器の過電流
保護回路。 Overcurrent detection in a forward converter comprising at least a three-phase Graetz connection circuit using a normal semiconductor switching element and a self-extinguishing semiconductor switching element arranged on the DC output side of the three-phase Graetz connection circuit. An overcurrent protection circuit for a forward converter, characterized in that a signal generating means for giving a non-ignition command only to the three-phase Graetz connection circuit based on the above is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10415985U JPS6214984U (en) | 1985-07-10 | 1985-07-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10415985U JPS6214984U (en) | 1985-07-10 | 1985-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6214984U true JPS6214984U (en) | 1987-01-29 |
Family
ID=30977396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10415985U Pending JPS6214984U (en) | 1985-07-10 | 1985-07-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6214984U (en) |
-
1985
- 1985-07-10 JP JP10415985U patent/JPS6214984U/ja active Pending
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