JPS61156491U - - Google Patents
Info
- Publication number
- JPS61156491U JPS61156491U JP3889485U JP3889485U JPS61156491U JP S61156491 U JPS61156491 U JP S61156491U JP 3889485 U JP3889485 U JP 3889485U JP 3889485 U JP3889485 U JP 3889485U JP S61156491 U JPS61156491 U JP S61156491U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- transistor
- lifting magnet
- reverse switching
- alternating 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
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
Landscapes
- Load-Engaging Elements For Cranes (AREA)
Description
第１図は、本考案による可変電圧リフテイング
マグネツト用電源装置の実施例のブロツク図、第
２図は、第１図の電源装置の動作を説明するため
の電圧、電流波形図、第３図及び第４図は、それ
ぞれ従来の可変電圧リフテイングマグネツト用電
源装置のブロツク図である。
図において、１……交流電源、４……リフテイ
ングマグネツト、１０……トランジスタコンバー
タ、１１……逆変換制御回路、１２……トランジ
スタ正逆切換・電圧調整回路、１３……正逆励磁
制御回路、１４……コンデンサ、１５……零電流
検出器。
FIG. 1 is a block diagram of an embodiment of a power supply device for a variable voltage lifting magnet according to the present invention, FIG. 2 is a voltage and current waveform diagram for explaining the operation of the power supply device of FIG. 1, and FIG. 1 and 4 are block diagrams of conventional power supplies for variable voltage lifting magnets, respectively. In the figure, 1...AC power supply, 4...Lifting magnet, 10...Transistor converter, 11...Reverse conversion control circuit, 12...Transistor forward/reverse switching/voltage adjustment circuit, 13...Forward/reverse excitation control Circuit, 14... Capacitor, 15... Zero current detector.
Claims (1)
と共に逆変換動作のできるトランジスタコンバー
タ、 上記トランジスタコンバータからの直流電圧の
極性を切り換え、かつ、電圧の大きさを調整して
リフテイングマグネツトに印加するトランジスタ
正逆切換・電圧調整回路、及び 上記トランジスタ正逆切換・電圧調整回路の正
負の両入力端子間に接続されるコンデンサからな
る可変電圧リフテイングマグネツト用電源装置。[Claims for Utility Model Registration] A transistor converter capable of converting alternating current voltage from an alternating current power source into direct current voltage and inversely converting it; A power supply device for a variable voltage lifting magnet consisting of a transistor forward/reverse switching/voltage adjustment circuit that applies voltage to the lifting magnet, and a capacitor connected between the positive and negative input terminals of the transistor forward/reverse switching/voltage adjusting circuit. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3889485U JPS61156491U (en) | 1985-03-20 | 1985-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3889485U JPS61156491U (en) | 1985-03-20 | 1985-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61156491U true JPS61156491U (en) | 1986-09-27 |
Family
ID=30546325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3889485U Pending JPS61156491U (en) | 1985-03-20 | 1985-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61156491U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009208931A (en) * | 2008-03-05 | 2009-09-17 | Sumitomo Heavy Ind Ltd | Lifting magnet driving circuit |
| JP2010235293A (en) * | 2009-03-31 | 2010-10-21 | Sumitomo Heavy Ind Ltd | Power supply circuit for lifting magnet |
| CN102303809A (en) * | 2008-03-12 | 2012-01-04 | 住友重机械工业株式会社 | Drive circuit of crane magnet |
| JP2017128412A (en) * | 2016-01-19 | 2017-07-27 | 住友建機株式会社 | Lifting magnet work machine |
-
1985
- 1985-03-20 JP JP3889485U patent/JPS61156491U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009208931A (en) * | 2008-03-05 | 2009-09-17 | Sumitomo Heavy Ind Ltd | Lifting magnet driving circuit |
| CN102303809A (en) * | 2008-03-12 | 2012-01-04 | 住友重机械工业株式会社 | Drive circuit of crane magnet |
| JP2010235293A (en) * | 2009-03-31 | 2010-10-21 | Sumitomo Heavy Ind Ltd | Power supply circuit for lifting magnet |
| JP2017128412A (en) * | 2016-01-19 | 2017-07-27 | 住友建機株式会社 | Lifting magnet work machine |
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