JPH0334687U - - Google Patents
Info
- Publication number
- JPH0334687U JPH0334687U JP9277989U JP9277989U JPH0334687U JP H0334687 U JPH0334687 U JP H0334687U JP 9277989 U JP9277989 U JP 9277989U JP 9277989 U JP9277989 U JP 9277989U JP H0334687 U JPH0334687 U JP H0334687U
- Authority
- JP
- Japan
- Prior art keywords
- current control
- pwm
- current
- inverter
- control amplifier
- 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
Description
第１図は本考案の一実施例を示す要部回路図、
第２図はＰＷＭインバータの回路図である。
３……インバータ主回路、４……誘導電動機、
６……ベクトル演算回路、７ａ，７ｂ，７ｃ……
電流制御増幅器、８……ＰＷＭ回路、Ｃｄａ，Ｃ
ｄｂ，Ｃｄｃ……コンデンサ。
FIG. 1 is a main circuit diagram showing an embodiment of the present invention.
FIG. 2 is a circuit diagram of a PWM inverter. 3...Inverter main circuit, 4...Induction motor,
6...Vector calculation circuit, 7a , 7b , 7c ...
Current control amplifier, 8...PWM circuit, C da , C
db , C dc ... Capacitor.
Claims (1)
の各相出力電流とを夫々比較する電流制御増幅器
と、各電流制御増幅器の各相出力電圧をＰＷＭ波
形に変換してトランジスタインバータのパワート
ランジスタをスイツチ制御するＰＷＭ回路とを備
えたＰＷＭインバータにおいて、前記電流制御増
幅器は比例積分用のコンデンサと抵抗の直列回路
と、一次遅れ用コンデンサとを帰還回路に備えた
ことを特徴とするＰＷＭインバータの電流制御回
路。 A current control amplifier that compares each phase sine wave current command with each phase output current of the transistor inverter, and a PWM that converts each phase output voltage of each current control amplifier into a PWM waveform to switch control the power transistor of the transistor inverter. A current control circuit for a PWM inverter, characterized in that the current control amplifier includes a series circuit of a proportional-integral capacitor and a resistor, and a first-order lag capacitor in a feedback circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989092779U JPH0811066Y2 (en) | 1989-08-07 | 1989-08-07 | PWM inverter current control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989092779U JPH0811066Y2 (en) | 1989-08-07 | 1989-08-07 | PWM inverter current control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0334687U true JPH0334687U (en) | 1991-04-04 |
| JPH0811066Y2 JPH0811066Y2 (en) | 1996-03-29 |
Family
ID=31642191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989092779U Expired - Lifetime JPH0811066Y2 (en) | 1989-08-07 | 1989-08-07 | PWM inverter current control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0811066Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60221992A (en) * | 1983-12-22 | 1985-11-06 | ゼネラル・エレクトリック・カンパニイ | Saturation prevention control circuit |
| JPS61199471A (en) * | 1985-02-27 | 1986-09-03 | Toshiba Corp | Current controller of power converter |
-
1989
- 1989-08-07 JP JP1989092779U patent/JPH0811066Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60221992A (en) * | 1983-12-22 | 1985-11-06 | ゼネラル・エレクトリック・カンパニイ | Saturation prevention control circuit |
| JPS61199471A (en) * | 1985-02-27 | 1986-09-03 | Toshiba Corp | Current controller of power converter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0811066Y2 (en) | 1996-03-29 |