JPS5934496U - Inverter protection circuit - Google Patents
Inverter protection circuitInfo
- Publication number
- JPS5934496U JPS5934496U JP12914982U JP12914982U JPS5934496U JP S5934496 U JPS5934496 U JP S5934496U JP 12914982 U JP12914982 U JP 12914982U JP 12914982 U JP12914982 U JP 12914982U JP S5934496 U JPS5934496 U JP S5934496U
- Authority
- JP
- Japan
- Prior art keywords
- switch element
- main switch
- protection circuit
- antiparallel
- 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
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
第１図は本考案の一実施例を示す回路図、第２図は判定
回路７．８の入出力特性図である。
１ｖ、 、 １．−ＧＴＯサイリスタ、２ Ｕｓ ２
Ｘ””還流用ダイオード、３・・・オンゲート電源、４
・・・オフゲート電源、７・・・電圧判定回路、８・・
・零電流判定回路、１０・・・オフゲート電流検出回路
。FIG. 1 is a circuit diagram showing an embodiment of the present invention, and FIG. 2 is an input/output characteristic diagram of the determination circuit 7.8. 1v, , 1. -GTO thyristor, 2 Us 2
X"" Freewheeling diode, 3... On-gate power supply, 4
... Off-gate power supply, 7... Voltage judgment circuit, 8...
- Zero current determination circuit, 10... off-gate current detection circuit.
Claims (1)
イオードを具備する主回路構成のインバータにおいて、
第１の主スィッチ素子に直列の第２の主スィッチ素子に
逆並列接続する還流用ダイオードがＯＦＦ状態でかつ負
荷電流が所定レベルにある状態で第１の主スィッチ素子
のオン１０御を抑止する手段と、第１の主スィッチ素子
のオフ制御に第２の主スィッチ素子に逆並列接続する還
流用ダイオードに電流が流れないときに主回路保護信号
を得る手段とを備えたことを特徴とするインバータの保
護回路。In an inverter with a main circuit configuration in which freewheeling diodes are provided antiparallel to each bridge-connected main switch element,
The ON/10 control of the first main switch element is inhibited when a freewheeling diode connected in antiparallel to a second main switch element in series with the first main switch element is in an OFF state and the load current is at a predetermined level. and means for obtaining a main circuit protection signal when no current flows through a freewheeling diode connected in antiparallel to a second main switch element for off-control of the first main switch element. Inverter protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12914982U JPS5934496U (en) | 1982-08-26 | 1982-08-26 | Inverter protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12914982U JPS5934496U (en) | 1982-08-26 | 1982-08-26 | Inverter protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5934496U true JPS5934496U (en) | 1984-03-03 |
Family
ID=30292725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12914982U Pending JPS5934496U (en) | 1982-08-26 | 1982-08-26 | Inverter protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5934496U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5512736B2 (en) * | 1974-08-08 | 1980-04-03 |
-
1982
- 1982-08-26 JP JP12914982U patent/JPS5934496U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5512736B2 (en) * | 1974-08-08 | 1980-04-03 |
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