JPH0472888U - - Google Patents
Info
- Publication number
- JPH0472888U JPH0472888U JP11580290U JP11580290U JPH0472888U JP H0472888 U JPH0472888 U JP H0472888U JP 11580290 U JP11580290 U JP 11580290U JP 11580290 U JP11580290 U JP 11580290U JP H0472888 U JPH0472888 U JP H0472888U
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- transformer
- circuit
- main 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
- 238000001514 detection method Methods 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 101100338494 Chlamydia trachomatis serovar L2 (strain 434/Bu / ATCC VR-902B) hctB gene Proteins 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 101100338491 Oryza sativa subsp. japonica HCT1 gene Proteins 0.000 description 1
- 101100338495 Oryza sativa subsp. japonica HCT2 gene Proteins 0.000 description 1
- 101100495309 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) CDH1 gene Proteins 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
Description
第１図は本考案の実施例にかかるインバータ装
置のブロツク回路図、第２図は励磁検出用トラン
スの動作説明用の波形図、第３図は鉄心の近似Ｂ
−ｉ特性を示す線図、第４図は従来インバータ装
置のブロツク回路図、第５図は従来偏磁補償回路
付インバータのブロツク回路図である。
１……インバータ主回路、２，２０……制御回
路、Ｔｒ１……インバータトランス、Ｔｒ２……
偏磁検出用トランス、ＨＣＴ１，ＨＣＴ２……ホ
ールＣＴ、２１……電圧設定器、２２，２７……
フイルタ、２４……電圧アンプ、２５……正弦波
発振器、２６……掛算器、２９……三角波発振器
、３０，３１……コンパレータ、３２……スイツ
チング素子駆動回路。
Fig. 1 is a block circuit diagram of an inverter device according to an embodiment of the present invention, Fig. 2 is a waveform diagram for explaining the operation of the excitation detection transformer, and Fig. 3 is an approximation B of the iron core.
-i characteristics, FIG. 4 is a block circuit diagram of a conventional inverter device, and FIG. 5 is a block circuit diagram of a conventional inverter with a bias compensation circuit. 1... Inverter main circuit, 2, 20... Control circuit, Tr1... Inverter transformer, Tr2...
Unbalanced magnetism detection transformer, HCT1, HCT2... Hall CT, 21... Voltage setting device, 22, 27...
Filter, 24... Voltage amplifier, 25... Sine wave oscillator, 26... Multiplier, 29... Triangular wave oscillator, 30, 31... Comparator, 32... Switching element drive circuit.
Claims (1)
ータトランスの出力電圧を検出しインバータ主回
路を制御する制御回路にフイードバツクして出力
電圧を一定に制御するようにしたインバータにお
いて、 前記インバータ主回路の出力側に接続されたイ
ンバータトランスと並列にインバータトランスよ
り低い電圧で磁気飽和する励磁検出用トランスを
設けると共に、この励磁検出用トランスの１次電
流を検出するホールＣＴ等の電流検出器を設け、
この電流検出器の検出電流を前記制御回路にフイ
ードバツクし偏磁補正をすることを特徴としたイ
ンバータトランスの偏磁補正回路。[Claims for Utility Model Registration] In an inverter that detects the output voltage of an inverter transformer connected to the output side of the inverter main circuit and feeds it back to a control circuit that controls the inverter main circuit to control the output voltage to a constant level. , An excitation detection transformer that magnetically saturates at a voltage lower than that of the inverter transformer is provided in parallel with the inverter transformer connected to the output side of the inverter main circuit, and a Hall CT or the like is installed to detect the primary current of this excitation detection transformer. Install a current detector,
A bias correction circuit for an inverter transformer, characterized in that the current detected by the current detector is fed back to the control circuit to correct the bias.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11580290U JPH0472888U (en) | 1990-11-02 | 1990-11-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11580290U JPH0472888U (en) | 1990-11-02 | 1990-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0472888U true JPH0472888U (en) | 1992-06-26 |
Family
ID=31863603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11580290U Pending JPH0472888U (en) | 1990-11-02 | 1990-11-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0472888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015032719A (en) * | 2013-08-05 | 2015-02-16 | 株式会社日立製作所 | Excitation current detection device for transformer for conversion |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63148873A (en) * | 1986-12-12 | 1988-06-21 | Toshiba Corp | Inverter device |
| JPS63198581A (en) * | 1987-02-12 | 1988-08-17 | Mitsubishi Electric Corp | Dc component corrector for inverter output voltage |
| JPH02307374A (en) * | 1989-05-22 | 1990-12-20 | Hitachi Ltd | Power converter |
-
1990
- 1990-11-02 JP JP11580290U patent/JPH0472888U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63148873A (en) * | 1986-12-12 | 1988-06-21 | Toshiba Corp | Inverter device |
| JPS63198581A (en) * | 1987-02-12 | 1988-08-17 | Mitsubishi Electric Corp | Dc component corrector for inverter output voltage |
| JPH02307374A (en) * | 1989-05-22 | 1990-12-20 | Hitachi Ltd | Power converter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015032719A (en) * | 2013-08-05 | 2015-02-16 | 株式会社日立製作所 | Excitation current detection device for transformer for conversion |
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