JPS60141637U - Inverter overcurrent protection device - Google Patents
Inverter overcurrent protection deviceInfo
- Publication number
- JPS60141637U JPS60141637U JP3117384U JP3117384U JPS60141637U JP S60141637 U JPS60141637 U JP S60141637U JP 3117384 U JP3117384 U JP 3117384U JP 3117384 U JP3117384 U JP 3117384U JP S60141637 U JPS60141637 U JP S60141637U
- Authority
- JP
- Japan
- Prior art keywords
- field effect
- effect transistor
- voltage
- gate
- diode
- 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
- Protection Of Static Devices (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
第１図は従来のインバータの過電流保護装置を示す回路
図、第２図はこの考案の一実施例を示す、回路図、第３
図は電界効果形トランジスタの静特性図である。
図において、１１・・・コンデンサ、１３・・・ダイオ
、−ド、２１・・・ゲートターンオフサイリスタ、２２
・・・電界効果形トランジスタ、２３・・・インピーダ
ン ゛ス素子、２４・・・ダイオード直列体、２５・
・・ゲート制御器、２６・・・電圧検出器。なお、図中
、同一符号は同一または相当部分を示す。
補正 昭６０．５．２４ −
゛ 実用新案登録請求の範囲を次のように補正
する。
Ｏ実用新案登録請求の範囲 −−Fig. 1 is a circuit diagram showing a conventional overcurrent protection device for an inverter, Fig. 2 is a circuit diagram showing an embodiment of this invention, and Fig. 3 is a circuit diagram showing an embodiment of this invention.
The figure is a static characteristic diagram of a field effect transistor. In the figure, 11... Capacitor, 13... Diode, -de, 21... Gate turn-off thyristor, 22
... Field effect transistor, 23... Impedance element, 24... Diode series body, 25...
...Gate controller, 26...Voltage detector. In addition, in the figures, the same reference numerals indicate the same or corresponding parts. Amendment May 24, 1980 - ゛ The scope of claims for utility model registration is amended as follows. O Scope of claim for utility model registration ---
Claims (1)
の直列体にダイオードを逆並列に接続した回路、該回路
と直列接続してインバータの直流端子間に挿入されるコ
ンデンサ、上記電界効果形トランジスタの電圧が所定レ
ベルに達すると出力する電圧検出器、該電圧検出器の動
作出力を受吐て上記電界効果形トランジスタにオフゲー
ト信号を供給するゲート制御器を具え、上記ゲートター
ンオフサイリスクのゲート−・アノード間にインピーダ
ンス素子が挿入されると共に上記電界効果形トランジス
タのドレイン・ソース間にはダイオード直列体もしくは
定電圧ダイオードが挿入されることを特徴とするインバ
ータの過電流保護装置。A circuit in which a diode is connected in antiparallel to a series body of a gate turn-off thyristor and a field effect transistor, a capacitor connected in series with the circuit and inserted between the DC terminals of an inverter, and a voltage of the field effect transistor set to a predetermined level. a voltage detector that outputs an output when the voltage reaches the threshold voltage, a gate controller that receives and discharges the operating output of the voltage detector and supplies an off-gate signal to the field effect transistor, and an impedance between the gate and anode of the gate turn-off transistor. An overcurrent protection device for an inverter, characterized in that a series diode or a constant voltage diode is inserted between the drain and source of the field effect transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3117384U JPS60141637U (en) | 1984-03-01 | 1984-03-01 | Inverter overcurrent protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3117384U JPS60141637U (en) | 1984-03-01 | 1984-03-01 | Inverter overcurrent protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60141637U true JPS60141637U (en) | 1985-09-19 |
| JPS6338690Y2 JPS6338690Y2 (en) | 1988-10-12 |
Family
ID=30531533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3117384U Granted JPS60141637U (en) | 1984-03-01 | 1984-03-01 | Inverter overcurrent protection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60141637U (en) |
-
1984
- 1984-03-01 JP JP3117384U patent/JPS60141637U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6338690Y2 (en) | 1988-10-12 |
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