JPS62149284U - - Google Patents
Info
- Publication number
- JPS62149284U JPS62149284U JP3572186U JP3572186U JPS62149284U JP S62149284 U JPS62149284 U JP S62149284U JP 3572186 U JP3572186 U JP 3572186U JP 3572186 U JP3572186 U JP 3572186U JP S62149284 U JPS62149284 U JP S62149284U
- Authority
- JP
- Japan
- Prior art keywords
- converter
- forward converter
- circuit
- converts
- smoothing capacitor
- 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 description 3
- 238000009499 grossing Methods 0.000 claims description 3
- 230000005284 excitation Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Rectifiers (AREA)
Description
第１図、第２図は従来のインバータの突入電流
制限回路図、第３図は本考案に係るインバータの
突入電流制限回路図、第４図は本考案のマイクロ
プロセツサを動作させるプログラムのフローチヤ
ート図、第５図は第４図に示すフローチヤートの
記憶部に設定されたプログラム上のカウンタと各
部の時間経過を示す図である。
３０は順変換器、３７は逆変換器、４４は平滑
用コンデンサ、４５は電流制限抵抗、４６はａ接
点、４７は直流電磁接触器、４８はＤＣ―ＤＣコ
ンバータである。
Figures 1 and 2 are inrush current limiting circuit diagrams of a conventional inverter, Figure 3 is an inrush current limiting circuit diagram of an inverter according to the present invention, and Figure 4 is a program flow for operating the microprocessor of the present invention. The chart diagram, FIG. 5, is a diagram showing the counters on the program set in the storage section of the flowchart shown in FIG. 4, and the passage of time in each part. 30 is a forward converter, 37 is an inverse converter, 44 is a smoothing capacitor, 45 is a current limiting resistor, 46 is an a contact, 47 is a DC electromagnetic contactor, and 48 is a DC-DC converter.
Claims (1)
器の出力を交流に変換する逆変換器、該逆変換器
と順変換器の中間直流回路に接続した平滑用コン
デンサ、該平滑用コンデンサと順変換器の直流出
力側との間に接続した直流電磁接触器のａ接点と
電流制限抵抗の並列回路、前記直流中間回路に接
続したＤＣ―ＤＣコンバータに直流電磁接触器の
励磁巻線を接続したインバータにおいて、前記順
変換器入力側交流電源の一定時間以上の電源遮断
又は一定電圧以下の電圧降下を検出して前記直流
電磁接触器を不動作とするインバータの突入電流
制限回路。 A forward converter that converts an alternating current power supply to direct current, an inverse converter that converts the output of the forward converter to alternating current, a smoothing capacitor connected to an intermediate DC circuit between the inverse converter and the forward converter, and the smoothing capacitor. A parallel circuit of the a contact of the DC magnetic contactor and the current limiting resistor connected between the DC output side of the forward converter, and the excitation winding of the DC magnetic contactor connected to the DC-DC converter connected to the DC intermediate circuit. An inrush current limiting circuit for an inverter that detects a power interruption of an input side AC power supply of the forward converter for a certain period of time or more or a voltage drop below a certain voltage to disable the DC electromagnetic contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3572186U JPS62149284U (en) | 1986-03-12 | 1986-03-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3572186U JPS62149284U (en) | 1986-03-12 | 1986-03-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62149284U true JPS62149284U (en) | 1987-09-21 |
Family
ID=30845461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3572186U Pending JPS62149284U (en) | 1986-03-12 | 1986-03-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62149284U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01218357A (en) * | 1988-02-24 | 1989-08-31 | Fuji Electric Co Ltd | Voltage detection circuit |
-
1986
- 1986-03-12 JP JP3572186U patent/JPS62149284U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01218357A (en) * | 1988-02-24 | 1989-08-31 | Fuji Electric Co Ltd | Voltage detection circuit |