JPH0434829U - - Google Patents
Info
- Publication number
- JPH0434829U JPH0434829U JP7127790U JP7127790U JPH0434829U JP H0434829 U JPH0434829 U JP H0434829U JP 7127790 U JP7127790 U JP 7127790U JP 7127790 U JP7127790 U JP 7127790U JP H0434829 U JPH0434829 U JP H0434829U
- Authority
- JP
- Japan
- Prior art keywords
- discharge resistor
- circuit
- current source
- inverter
- resistance value
- 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
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000009499 grossing Methods 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Supply And Distribution Of Alternating Current (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図は従来例を示すブロツク回路図、第３図
はインバータの出力電流及び電源側への電流の波
形を示す波形図である。
１……電流形アクテイブフイルタ、２……電流
形インバータ、３……サージ吸収回路、４……全
波整流回路、５……制御回路、ＤＣＬ……直流リ
アクトル、ＣＦ……フイルタコンデンサ、ＣＤ…
…平滑コンデンサ、ＲＤ，ＲＤ１，ＲＤ２……放
電抵抗、ＳＷ……スイツチングトランジスタ、Ｃ
Ｔ……電流検出器、ＬＳ……配線インダクタンス
。
FIG. 1 is a block circuit diagram showing an embodiment of the present invention, FIG. 2 is a block circuit diagram showing a conventional example, and FIG. 3 is a waveform diagram showing the waveforms of the output current of the inverter and the current flowing to the power supply side. 1...Current source active filter, 2...Current source inverter, 3...Surge absorption circuit, 4...Full wave rectifier circuit, 5...Control circuit, DCL...DC reactor, CF...Filter capacitor, CD...
... Smoothing capacitor, RD, RD 1 , RD 2 ... Discharge resistor, SW ... Switching transistor, C
T...Current detector, LS...Wiring inductance.
Claims (1)
路と平滑コンデンサ及び放電抵抗とよりなるサー
ジ吸収回路において、 前記放電抵抗を切替放電抵抗とすると共に、こ
の切替放電抵抗の抵抗値を、前記インバータの出
力を検出して小負荷時には大きくし、大負荷時に
は小さく切替えるスイツチ回路を設けたことを特
徴とした電流形アクテイブフイルタのサージ吸収
回路。[Claims for Utility Model Registration] In a surge absorption circuit that includes a full-wave rectifier circuit, a smoothing capacitor, and a discharge resistor provided on the AC side of a current source inverter, the discharge resistor is a switched discharge resistor, and the switched discharge resistor A surge absorption circuit for a current source active filter, comprising a switch circuit that detects the output of the inverter and increases the resistance value at a small load and decreases the resistance value at a large load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990071277U JP2536961Y2 (en) | 1990-07-04 | 1990-07-04 | Surge absorption circuit of current type active filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990071277U JP2536961Y2 (en) | 1990-07-04 | 1990-07-04 | Surge absorption circuit of current type active filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0434829U true JPH0434829U (en) | 1992-03-24 |
| JP2536961Y2 JP2536961Y2 (en) | 1997-05-28 |
Family
ID=31608164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990071277U Expired - Lifetime JP2536961Y2 (en) | 1990-07-04 | 1990-07-04 | Surge absorption circuit of current type active filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2536961Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57165644A (en) * | 1981-04-07 | 1982-10-12 | Nippon Denso Co Ltd | Control method of air-fuel ratio |
| JPS6013435A (en) * | 1983-06-30 | 1985-01-23 | 株式会社東芝 | Control system of resistor for attenuating harmonic current |
| JPS63139122A (en) * | 1986-12-02 | 1988-06-10 | Shinsen Iyaku Kk | Defoaming of high-viscosity plaster such as cataplasma or the like |
-
1990
- 1990-07-04 JP JP1990071277U patent/JP2536961Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57165644A (en) * | 1981-04-07 | 1982-10-12 | Nippon Denso Co Ltd | Control method of air-fuel ratio |
| JPS6013435A (en) * | 1983-06-30 | 1985-01-23 | 株式会社東芝 | Control system of resistor for attenuating harmonic current |
| JPS63139122A (en) * | 1986-12-02 | 1988-06-10 | Shinsen Iyaku Kk | Defoaming of high-viscosity plaster such as cataplasma or the like |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2536961Y2 (en) | 1997-05-28 |