JPS58176590U - Inverter protection circuit - Google Patents
Inverter protection circuitInfo
- Publication number
- JPS58176590U JPS58176590U JP7307282U JP7307282U JPS58176590U JP S58176590 U JPS58176590 U JP S58176590U JP 7307282 U JP7307282 U JP 7307282U JP 7307282 U JP7307282 U JP 7307282U JP S58176590 U JPS58176590 U JP S58176590U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- short
- thyristor
- protection circuit
- 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.)
- Pending
Links
Landscapes
- Power Conversion In General (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図面は本考案に係るインバータの保護回路の一実施例を
示す回路図である。
Ｅ・・・直流電源、ＥＦ・・・ヒユーズ、Ｌ・・・直流
リアクトル、Ｓ□〜Ｓ４・・・ＧＴＯＸＳ５・・・短絡
用サイリスタ、Ｓ６・・・ＰＮＰＮ素子、Ｒ□及びＲ２
・・・抵抗、Ｄ・・・ダイオード、Ｃ・・・コンデンサ
、ＴＦ・・・パルストランス。The drawing is a circuit diagram showing an embodiment of an inverter protection circuit according to the present invention. E...DC power supply, EF...Fuse, L...DC reactor, S□~S4...GTOXS5...Short circuit thyristor, S6...PNPN element, R□ and R2
...Resistor, D...Diode, C...Capacitor, TF...Pulse transformer.
Claims (1)
ジ回路を構成し、このブリッジ回路の直流入力端子間に
直流短絡事故時に強制点弧される短絡用サイリスタを接
続して、インバータを保護するようにしたものにおいて
、ダイオード及び抵抗の並列回路にコンデンサを直列に
接続した電圧抑制回路を前記短絡用サイリスタと並列に
接続し、直流短絡事故時に前記電圧抑制回路の抵抗の端
子間に生じる電圧を、前記短絡用サイリスタの点弧信号
として利用するようにしたことを特徴とするインバータ
の保護回路。A bridge circuit is constructed with semiconductor switches and switching elements that have self-extinguishing capability, and a short-circuit thyristor that is forcibly fired in the event of a DC short-circuit accident is connected between the DC input terminals of this bridge circuit to protect the inverter. In the above-mentioned device, a voltage suppression circuit including a capacitor connected in series to a parallel circuit of a diode and a resistor is connected in parallel with the short-circuit thyristor, and the voltage generated between the terminals of the resistor of the voltage suppression circuit at the time of a DC short-circuit accident is An inverter protection circuit characterized in that it is used as an ignition signal for a short-circuit thyristor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7307282U JPS58176590U (en) | 1982-05-19 | 1982-05-19 | Inverter protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7307282U JPS58176590U (en) | 1982-05-19 | 1982-05-19 | Inverter protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58176590U true JPS58176590U (en) | 1983-11-25 |
Family
ID=30082598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7307282U Pending JPS58176590U (en) | 1982-05-19 | 1982-05-19 | Inverter protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58176590U (en) |
-
1982
- 1982-05-19 JP JP7307282U patent/JPS58176590U/en active Pending
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