JPS6388086U - - Google Patents
Info
- Publication number
- JPS6388086U JPS6388086U JP18092286U JP18092286U JPS6388086U JP S6388086 U JPS6388086 U JP S6388086U JP 18092286 U JP18092286 U JP 18092286U JP 18092286 U JP18092286 U JP 18092286U JP S6388086 U JPS6388086 U JP S6388086U
- Authority
- JP
- Japan
- Prior art keywords
- electronic switch
- turn
- gto thyristor
- capacitor
- power source
- 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
- 239000003990 capacitor Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 6
Description
第１図はこの考案の一実施例を示す回路図、第
２図はこの考案の他の実施例を示す回路図、第３
図は従来例を示す回路図、第４図はＧＴＯサイリ
スタのゲート電流波形図、第５図はオフゲート電
流を示す説明図である。
１……ＧＴＯサイリスタ、３……ターンオン用
電源、４……ターンオフ用電源、６，１１……第
１、第２電子スイツチ、７……オーバドライブ用
コンデンサ、９……ダイオード、１０，１４……
抵抗、１３……コンデンサ。
Figure 1 is a circuit diagram showing one embodiment of this invention, Figure 2 is a circuit diagram showing another embodiment of this invention, and Figure 3 is a circuit diagram showing another embodiment of this invention.
FIG. 4 is a circuit diagram showing a conventional example, FIG. 4 is a gate current waveform diagram of a GTO thyristor, and FIG. 5 is an explanatory diagram showing an off-gate current. 1... GTO thyristor, 3... Power supply for turn-on, 4... Power supply for turn-off, 6, 11... First and second electronic switch, 7... Capacitor for overdrive, 9... Diode, 10, 14... …
Resistor, 13... Capacitor.
Claims (1)
続して、その共通接続点をＧＴＯサイリスタのカ
ソードに接続し、ターンオン用電源の正極を第１
電子スイツチとオーバードライブ用コンデンサの
直列回路を介してＧＴＯサイリスタのゲートに接
続し、前記第１電子スイツチとコンデンサの直列
回路の共通接続点とターンオフ用電源の負極との
電路に第２電子スイツチを介挿したＧＴＯサイリ
スタのゲート回路において、 ＧＴＯサイリスタのゲート電極と第２電子スイ
ツチとの電流通路に抵抗を介挿し、この抵抗でＧ
ＴＯサイリスタのターンオフ時にコンデンサに流
れる電流を制限させるようにしたことを特徴とす
る電流制限回路。[Claim for Utility Model Registration] A turn-off power source and a turn-off power source are connected in series, their common connection point is connected to the cathode of the GTO thyristor, and the positive terminal of the turn-on power source is connected to the first
A second electronic switch is connected to the gate of the GTO thyristor via a series circuit of an electronic switch and an overdrive capacitor, and a second electronic switch is connected to the common connection point of the series circuit of the first electronic switch and the capacitor and the negative electrode of the turn-off power supply. In the gate circuit of the inserted GTO thyristor, a resistor is inserted in the current path between the gate electrode of the GTO thyristor and the second electronic switch.
A current limiting circuit characterized in that the current flowing through a capacitor is limited when a TO thyristor is turned off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986180922U JPH0646230Y2 (en) | 1986-11-25 | 1986-11-25 | Current limit circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986180922U JPH0646230Y2 (en) | 1986-11-25 | 1986-11-25 | Current limit circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6388086U true JPS6388086U (en) | 1988-06-08 |
| JPH0646230Y2 JPH0646230Y2 (en) | 1994-11-24 |
Family
ID=31125319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986180922U Expired - Lifetime JPH0646230Y2 (en) | 1986-11-25 | 1986-11-25 | Current limit circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0646230Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57127586U (en) * | 1981-02-02 | 1982-08-09 |
-
1986
- 1986-11-25 JP JP1986180922U patent/JPH0646230Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57127586U (en) * | 1981-02-02 | 1982-08-09 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0646230Y2 (en) | 1994-11-24 |
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