JPS59132385U - Inverter protection device - Google Patents
Inverter protection deviceInfo
- Publication number
- JPS59132385U JPS59132385U JP2491983U JP2491983U JPS59132385U JP S59132385 U JPS59132385 U JP S59132385U JP 2491983 U JP2491983 U JP 2491983U JP 2491983 U JP2491983 U JP 2491983U JP S59132385 U JPS59132385 U JP S59132385U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- inverter
- circuit
- current
- detecting
- 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
第１図は本考案の実施例を示す回路図である。
２・・・・・・整流器、４・・・・・・トランジスタイ
ンバータ、６・・・・・・運転制御信号、７・・・・・
・ベース駆動回路、１３・・・・・・電流レベル設定器
、１６・・・・・・電圧検出器、１７・・・・・・電圧
にベル設定器、２１・・・・・・時延動作回路、２２・
・・・・・時延動作レベル設定器、２３．２７・・・・
・・インバータ停止信号、２５・・・・・・瞬時動作回
路、２６・・・・・・瞬時動作レベル設定器。FIG. 1 is a circuit diagram showing an embodiment of the present invention. 2... Rectifier, 4... Transistor inverter, 6... Operation control signal, 7...
・Base drive circuit, 13...Current level setter, 16...Voltage detector, 17...Voltage and bell setter, 21...Time delay Operating circuit, 22.
...Time delay operation level setter, 23.27...
...Inverter stop signal, 25... Instantaneous operation circuit, 26... Instantaneous operation level setter.
Claims (1)
して導かれる直流を交流に変換して負荷に供給するイン
バータにおいて、上記直流の電圧を検出する手段と、交
流負荷の電流を検出して直流電圧に変換する手段と、該
交流電流を変換した直流電圧と前記直流回路の検出電圧
の電圧レベルをほぼ同一に揃える手段を設ける一方、入
力電圧が所定値を上廻ったことを検出してインバータを
直ちに停止させ、または警報を発する瞬時動作回路と、
入力電圧が別の所定値を所定時間以上継続して超過した
ことを検出してインバータを停止させまたは警報を発す
る時延動作回路を設け、当該瞬時動作回路または時延動
作回路に前記交流電流を変換した直流電圧と直流回路検
出電圧を同じ極性で入力するように接続してなるインバ
ータ保護装置。゛In an inverter that converts direct current led from a rectifier connected to an AC power supply via a smoothing capacitor into alternating current and supplies it to a load, there is a means for detecting the voltage of the direct current, and a means for detecting the current of the alternating current load to generate a direct current voltage. and a means for making the voltage levels of the DC voltage obtained by converting the AC current and the detection voltage of the DC circuit almost the same, and the inverter is activated by detecting that the input voltage exceeds a predetermined value. an instantaneous action circuit that immediately stops or issues an alarm;
A time delay operation circuit is provided which stops the inverter or issues an alarm when the input voltage exceeds another predetermined value for a predetermined period or more, and the alternating current is supplied to the instantaneous operation circuit or the time delay operation circuit. An inverter protection device that connects the converted DC voltage and DC circuit detection voltage so that they are input with the same polarity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2491983U JPS59132385U (en) | 1983-02-22 | 1983-02-22 | Inverter protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2491983U JPS59132385U (en) | 1983-02-22 | 1983-02-22 | Inverter protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59132385U true JPS59132385U (en) | 1984-09-05 |
Family
ID=30155931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2491983U Pending JPS59132385U (en) | 1983-02-22 | 1983-02-22 | Inverter protection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59132385U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022158052A1 (en) * | 2021-01-19 | 2022-07-28 | 日立Astemo株式会社 | Gate drive circuit and power conversion device |
-
1983
- 1983-02-22 JP JP2491983U patent/JPS59132385U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022158052A1 (en) * | 2021-01-19 | 2022-07-28 | 日立Astemo株式会社 | Gate drive circuit and power conversion device |
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