JPS6241335U - - Google Patents
Info
- Publication number
- JPS6241335U JPS6241335U JP13151185U JP13151185U JPS6241335U JP S6241335 U JPS6241335 U JP S6241335U JP 13151185 U JP13151185 U JP 13151185U JP 13151185 U JP13151185 U JP 13151185U JP S6241335 U JPS6241335 U JP S6241335U
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- phase
- control circuit
- circuit
- open
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は、本考案に係る空気調和機における三
相入力インバータの欠相検出制御回路の一実施例
を示す図である。
図中、１はインバータ主回路、６はインバータ
制御回路、７は欠相検出回路、Ａ，Ｂはフオトカ
プラである。
FIG. 1 is a diagram showing an embodiment of an open phase detection control circuit for a three-phase input inverter in an air conditioner according to the present invention. In the figure, 1 is an inverter main circuit, 6 is an inverter control circuit, 7 is an open phase detection circuit, and A and B are photocouplers.
Claims (1)
波数に変換してこれを圧縮機等を駆動するモータ
に供給する空気調和機のインバータ主回路に、該
インバータ主回路の出力周波数を制御するインバ
ータ制御回路を接続し、該インバータ制御回路に
上記三相交流の線間電圧を検知して欠相状態を検
出し、欠相時には上記インバータ主回路を停止さ
せるべく該インバータ制御回路に出力する欠相検
出回路を接続したことを特徴とする三相入力イン
バータの欠相検出制御回路。 An inverter that controls the output frequency of the inverter main circuit is installed in the inverter main circuit of the air conditioner, which rectifies the three-phase alternating current at a constant frequency, converts it to an arbitrary frequency, and supplies it to the motor that drives the compressor, etc. A control circuit is connected to the inverter control circuit to detect the line voltage of the three-phase alternating current to detect an open phase state, and output to the inverter control circuit to stop the inverter main circuit when the phase is open. An open phase detection control circuit for a three-phase input inverter, characterized in that a detection circuit is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13151185U JPS6241335U (en) | 1985-08-30 | 1985-08-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13151185U JPS6241335U (en) | 1985-08-30 | 1985-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6241335U true JPS6241335U (en) | 1987-03-12 |
Family
ID=31030025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13151185U Pending JPS6241335U (en) | 1985-08-30 | 1985-08-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6241335U (en) |
-
1985
- 1985-08-30 JP JP13151185U patent/JPS6241335U/ja active Pending
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