JPH0434897U - - Google Patents
Info
- Publication number
- JPH0434897U JPH0434897U JP7317090U JP7317090U JPH0434897U JP H0434897 U JPH0434897 U JP H0434897U JP 7317090 U JP7317090 U JP 7317090U JP 7317090 U JP7317090 U JP 7317090U JP H0434897 U JPH0434897 U JP H0434897U
- Authority
- JP
- Japan
- Prior art keywords
- rectifier
- thyristor
- output side
- prevention 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
- 230000002265 prevention Effects 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Control Of Ac Motors In General (AREA)
- Stopping Of Electric Motors (AREA)
Description
第１図は本考案の実施例を示すブロツク回路図
、第２図は同回路の動作説明用のタイムチヤート
、第３図は従来過電圧防止回路を示すブロツク回
路図、第４図は同回路の動作説明用のタイムチヤ
ートである。
２……電流型インバータ、４……過電圧防止回
路、５……サイリスタ整流器、６……ダイオード
整流器、１１……他励インバータ。
Fig. 1 is a block circuit diagram showing an embodiment of the present invention, Fig. 2 is a time chart for explaining the operation of the circuit, Fig. 3 is a block circuit diagram showing a conventional overvoltage prevention circuit, and Fig. 4 is a block circuit diagram of the same circuit. This is a time chart for explaining the operation. 2... Current type inverter, 4... Overvoltage prevention circuit, 5... Thyristor rectifier, 6... Diode rectifier, 11... Separately excited inverter.
Claims (1)
れる整流器と、この整流器の出力側に接続された
直流コンデンサ、放電抵抗及び他励インバータよ
りなる過電圧防止回路において、 前記整流器を、常時サイリスタにゲート信号が
印加され停電又は運転停止時にゲートが遮断され
るサイリスタ整流器としたことを特徴とした過電
圧防止回路の過電流保護装置。[Claims for Utility Model Registration] In an overvoltage prevention circuit comprising a rectifier connected to the output side of an inverter that drives a motor, a DC capacitor connected to the output side of the rectifier, a discharge resistor, and a separately excited inverter, the rectifier An overcurrent protection device for an overvoltage prevention circuit, characterized in that the above is a thyristor rectifier in which a gate signal is constantly applied to the thyristor and the gate is cut off during a power outage or operation stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7317090U JPH0434897U (en) | 1990-07-10 | 1990-07-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7317090U JPH0434897U (en) | 1990-07-10 | 1990-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0434897U true JPH0434897U (en) | 1992-03-24 |
Family
ID=31611759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7317090U Pending JPH0434897U (en) | 1990-07-10 | 1990-07-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0434897U (en) |
-
1990
- 1990-07-10 JP JP7317090U patent/JPH0434897U/ja active Pending