JPS61123693U - - Google Patents
Info
- Publication number
- JPS61123693U JPS61123693U JP493685U JP493685U JPS61123693U JP S61123693 U JPS61123693 U JP S61123693U JP 493685 U JP493685 U JP 493685U JP 493685 U JP493685 U JP 493685U JP S61123693 U JPS61123693 U JP S61123693U
- Authority
- JP
- Japan
- Prior art keywords
- phase
- circuit
- outputs
- smoothing capacitor
- switching elements
- 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
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000009499 grossing Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Protection Of Static Devices (AREA)
- Control Of Ac Motors In General (AREA)
Description
第１図および第２図はこの考案のインバータ装
置の１実施例を示し、第１図は結線図、第２図は
第１図の一部の結線図、第３図は従来のインバー
タ装置の結線図である。
１ａ〜１ｃ……第１〜第３端子、２……３相全
波整流回路、３……平滑コンデンサ、４ａ〜４ｆ
……トランジスタ、６ａ〜６ｆ……フライホイル
ダイオード、１１……制御回路、１２……駆動回
路、１４，１５……トランス、１６……インバー
タ装置、２７……停止回路。
1 and 2 show one embodiment of the inverter device of this invention, FIG. 1 is a wiring diagram, FIG. 2 is a partial wiring diagram of FIG. 1, and FIG. 3 is a diagram of a conventional inverter device. It is a wiring diagram. 1a to 1c...1st to third terminals, 2...3-phase full-wave rectifier circuit, 3...smoothing capacitor, 4a to 4f
... Transistor, 6a to 6f ... Flywheel diode, 11 ... Control circuit, 12 ... Drive circuit, 14, 15 ... Transformer, 16 ... Inverter device, 27 ... Stop circuit.
Claims (1)
換する３相全波整流回路および平滑コンデンサと
、前記整流回路および平滑コンデンサにより得ら
れる直流を所定電圧、所定周波数の３相交流に変
換する６個のスイツチング素子と、前記各スイツ
チング素子にそれぞれ逆方向に並列接続されたフ
ライホイルダイオードと、それぞれの１次コイル
の一端が前記３相交流電源の１相に接続され前記
それぞれの１次コイルの他端が前記３相交流電源
の残りの２相にそれぞれ接続された第１、第２ト
ランスと、前記第１トランスの２次コイルに接続
され前記各スイツチング素子のオン、オフ制御用
の可変周波数、可変パルス幅のパルス幅変調制御
信号を出力する制御回路と、前記第２トランジス
の２次コイルに接続され前記制御信号にもとづく
駆動信号を出力して前記各スイツチング素子をオ
ン、オフさせる駆動回路と、前記第１トランジス
からの前記制御回路への入力電圧を検出し、前記
入力電圧の所定レベル以下への低下時に前記駆動
回路に出力停止信号を出力する停止回路とを備え
たインバータ装置。 A three-phase full-wave rectifier circuit and a smoothing capacitor that rectify and smooth the output of a three-phase AC power source and convert it into DC; and a three-phase full-wave rectifier circuit and a smoothing capacitor that convert the DC obtained by the rectifier circuit and smoothing capacitor into three-phase AC of a predetermined voltage and a predetermined frequency. six switching elements, a flywheel diode connected in parallel in opposite directions to each of the switching elements, and one end of each primary coil connected to one phase of the three-phase AC power supply, and one end of each primary coil connected to one phase of the three-phase AC power supply. first and second transformers whose other ends are respectively connected to the remaining two phases of the three-phase AC power source; and a variable transformer connected to the secondary coil of the first transformer for on/off control of each of the switching elements. a control circuit that outputs a pulse width modulation control signal with a variable frequency and pulse width; and a drive that is connected to the secondary coil of the second transistor and outputs a drive signal based on the control signal to turn each switching element on and off. and a stop circuit that detects the input voltage from the first transistor to the control circuit and outputs an output stop signal to the drive circuit when the input voltage drops below a predetermined level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP493685U JPH0644317Y2 (en) | 1985-01-18 | 1985-01-18 | Inverter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP493685U JPH0644317Y2 (en) | 1985-01-18 | 1985-01-18 | Inverter device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61123693U true JPS61123693U (en) | 1986-08-04 |
| JPH0644317Y2 JPH0644317Y2 (en) | 1994-11-14 |
Family
ID=30480983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP493685U Expired - Lifetime JPH0644317Y2 (en) | 1985-01-18 | 1985-01-18 | Inverter device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0644317Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009194979A (en) * | 2008-02-13 | 2009-08-27 | Delta Electronics Inc | Motor system reducing common mode noise |
-
1985
- 1985-01-18 JP JP493685U patent/JPH0644317Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009194979A (en) * | 2008-02-13 | 2009-08-27 | Delta Electronics Inc | Motor system reducing common mode noise |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0644317Y2 (en) | 1994-11-14 |
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