JPH0428792U - - Google Patents
Info
- Publication number
- JPH0428792U JPH0428792U JP6879090U JP6879090U JPH0428792U JP H0428792 U JPH0428792 U JP H0428792U JP 6879090 U JP6879090 U JP 6879090U JP 6879090 U JP6879090 U JP 6879090U JP H0428792 U JPH0428792 U JP H0428792U
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- smoothing capacitor
- limiting resistor
- circuit
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 claims 2
- 238000009499 grossing Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Power Conversion In General (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図は従来インバータの予備充電回路を示す
ブロツク回路図である。
１……全波整流回路、２……インバータ、３…
…電圧検出回路、４……電磁接触器、ＰＲ……感
温抵抗体、Ｒ……抵抗。
FIG. 1 is a block circuit diagram showing an embodiment of the present invention, and FIG. 2 is a block circuit diagram showing a conventional pre-charging circuit for an inverter. 1...Full wave rectifier circuit, 2...Inverter, 3...
...Voltage detection circuit, 4...Magnetic contactor, PR...Temperature sensitive resistor, R...Resistance.
Claims (1)
制限用抵抗と平滑コンデンサ電圧が所定値に達す
るとオンする電磁接触器の接点の並列回路を接続
してなるインバータの予備充電回路において、 前記電流制限用抵抗を一定温度以上で急激に抵
抗値の大きくなる感温抵抗体としたことを特徴と
したインバータの予備充電回路。[Claims for Utility Model Registration] An inverter in which a parallel circuit of a current-limiting resistor and a contact of a magnetic contactor that turns on when the smoothing capacitor voltage reaches a predetermined value is connected between a full-wave rectifier circuit and a smoothing capacitor. In the preliminary charging circuit for an inverter, the current limiting resistor is a temperature-sensitive resistor whose resistance value increases rapidly above a certain temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6879090U JPH0428792U (en) | 1990-06-28 | 1990-06-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6879090U JPH0428792U (en) | 1990-06-28 | 1990-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0428792U true JPH0428792U (en) | 1992-03-06 |
Family
ID=31603530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6879090U Pending JPH0428792U (en) | 1990-06-28 | 1990-06-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0428792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014014273A (en) * | 2013-10-22 | 2014-01-23 | Hitachi Ltd | Semiconductor unit and power conversion apparatus |
-
1990
- 1990-06-28 JP JP6879090U patent/JPH0428792U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014014273A (en) * | 2013-10-22 | 2014-01-23 | Hitachi Ltd | Semiconductor unit and power conversion apparatus |
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