JPS61159843U - - Google Patents
Info
- Publication number
- JPS61159843U JPS61159843U JP4229185U JP4229185U JPS61159843U JP S61159843 U JPS61159843 U JP S61159843U JP 4229185 U JP4229185 U JP 4229185U JP 4229185 U JP4229185 U JP 4229185U JP S61159843 U JPS61159843 U JP S61159843U
- Authority
- JP
- Japan
- Prior art keywords
- phase
- inverter circuit
- detects
- dropout
- alternating current
- 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
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Protection Of Static Devices (AREA)
Description
第１図は、本考案の第１の実施例を示すインバ
ータ装置の回路図、第２図は第２の実施例を示す
回路図、第３図は、第３の実施例を示す回路図、
第４図は第４の実施例を示す回路図、第５図、第
６図、第７図はそれぞれ従来のインバータ装置を
示す回路図である。
図中、１はインバータ装置本体、５はインバー
タ回路部、８は整流回路部、９はスイツチング回
路部、１０は主制御回路部、１１は入力電流制御
回路部、２０はスイツチング素子保護回路部、２
４はＯＲ回路、２６は相電圧欠落保護回路である
。
FIG. 1 is a circuit diagram of an inverter device showing a first embodiment of the present invention, FIG. 2 is a circuit diagram showing a second embodiment, and FIG. 3 is a circuit diagram showing a third embodiment.
FIG. 4 is a circuit diagram showing a fourth embodiment, and FIGS. 5, 6, and 7 are circuit diagrams showing conventional inverter devices. In the figure, 1 is the inverter device main body, 5 is the inverter circuit section, 8 is the rectifier circuit section, 9 is the switching circuit section, 10 is the main control circuit section, 11 is the input current control circuit section, 20 is the switching element protection circuit section, 2
4 is an OR circuit, and 26 is a phase voltage dropout protection circuit.
Claims (1)
流に変換して出力するインバータ回路部と、前記
三相交流の１つの相に接続され、この相の線電流
値を検出し、この検出値が所定値を越えないよう
に前記インバータ回路部の出力する交流周波数を
制御する入力電流制御回路部とを備えたインバー
タ装置において、前記入力電流制御回路部が線電
流値を検出する相と他のいずれか１つの相との間
に接続され、これら２つの相間の線間電圧の欠落
を検出すると共に欠落を検出した場合、前記イン
バータ回路部の出力を停止させる相電圧欠落保護
回路を設けたことを特徴とするインバータ装置。 An inverter circuit unit that rectifies three-phase alternating current and then converts it into alternating current of an arbitrary frequency and outputs it, and an inverter circuit that is connected to one phase of the three-phase alternating current, detects the line current value of this phase, and detects this detected value. and an input current control circuit section that controls the AC frequency output from the inverter circuit section so that the AC frequency does not exceed a predetermined value. A phase voltage dropout protection circuit is provided, which is connected between the two phases and detects a dropout in the line voltage between these two phases, and stops the output of the inverter circuit section when the dropout is detected. An inverter device featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4229185U JPH0632756Y2 (en) | 1985-03-26 | 1985-03-26 | Inverter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4229185U JPH0632756Y2 (en) | 1985-03-26 | 1985-03-26 | Inverter device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61159843U true JPS61159843U (en) | 1986-10-03 |
| JPH0632756Y2 JPH0632756Y2 (en) | 1994-08-24 |
Family
ID=30552911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4229185U Expired - Lifetime JPH0632756Y2 (en) | 1985-03-26 | 1985-03-26 | Inverter device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0632756Y2 (en) |
-
1985
- 1985-03-26 JP JP4229185U patent/JPH0632756Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0632756Y2 (en) | 1994-08-24 |
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