STEP-DOWN CHOPPER CIRCUIT AND POWER SUPPLY DEVICE FOR WELDING
PROBLEM TO BE SOLVED: To provide a step-down chopper circuit capable of reducing a loss of a switch and a diode.SOLUTION: In a step-down chopper circuit 12 arranged with a switch, a reflux diode, and a reactor in this order, first and second switches TR1 and TR2 are provided in parallel on a power s...
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| description | PROBLEM TO BE SOLVED: To provide a step-down chopper circuit capable of reducing a loss of a switch and a diode.SOLUTION: In a step-down chopper circuit 12 arranged with a switch, a reflux diode, and a reactor in this order, first and second switches TR1 and TR2 are provided in parallel on a power supply wire La as the switch, and first and second reactor L1 and L2 are provided in parallel on a power supply wire Lb as the reactor. An auxiliary capacitor C2 is connected between the power supply wires La and Lb between the switches TR1 and TR2, and the reflux diode DR 1 is connected between the power supply wires La and Lb between the reactors L1 and L2. As a chopper action, the second switch TR2 is turned on/off with a prescribed-time delay to the first switch TR1, thereby generating the resonance action of the auxiliary capacitor C2 and the first reactor L1. A switching loss or a recovery loss when the first and second switches TR1 and TR2 and the reflux diode DR1 are turned on/off are reduced.SELECTED DRAWING: Figure 1
【課題】スイッチ及びダイオードの損失低減を図ることができる降圧チョッパ回路を提供する。【解決手段】スイッチ、還流ダイオード、リアクトルの順に配置されてなる降圧チョッパ回路１２は、スイッチとして第１及び第２スイッチＴＲ１，ＴＲ２が電源線Ｌａ上に並設、リアクトルとして第１及び第２リアクトルＬ１，Ｌ２が電源線Ｌｂ上に並設されると共に、各スイッチＴＲ１，ＴＲ２間の電源線Ｌａ，Ｌｂ間に補助コンデンサＣ２が接続、各リアクトルＬ１，Ｌ２間の電源線Ｌａ，Ｌｂ間に還流ダイオードＤＲ１が接続されてなる。そして、チョッパ動作として、第１スイッチＴＲ１に対して第２スイッチＴＲ２を所定時間遅れてオンオフ動作させることで補助コンデンサＣ２及び第１リアクトルＬ１の共振動作を生じさせ、これによる第１，第２スイッチＴＲ１，ＴＲ２及び還流ダイオードＤＲ１のオンオフ時のスイッチング損失やリカバリ損失の低減がなされる。【選択図】図１ |
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| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JP2016101070A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JP2016101070A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JP2016101070A3</originalsourceid><addsrcrecordid>eNrjZLANDnEN0HXxD_dTcPbwDwhwDVJw9gxyDvUMUXD0c1EI8A8HigSHBgT4RCq4uIZ5OrsquPkHKYS7-rh4-rnzMLCmJeYUp_JCaW4GJTfXEGcP3dSC_PjU4oLE5NS81JJ4rwAjA0MzQwNDA3MDR2OiFAEAgx8qLw</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>STEP-DOWN CHOPPER CIRCUIT AND POWER SUPPLY DEVICE FOR WELDING</title><source>esp@cenet</source><creator>GAMO ISAMU</creator><creatorcontrib>GAMO ISAMU</creatorcontrib><description>PROBLEM TO BE SOLVED: To provide a step-down chopper circuit capable of reducing a loss of a switch and a diode.SOLUTION: In a step-down chopper circuit 12 arranged with a switch, a reflux diode, and a reactor in this order, first and second switches TR1 and TR2 are provided in parallel on a power supply wire La as the switch, and first and second reactor L1 and L2 are provided in parallel on a power supply wire Lb as the reactor. An auxiliary capacitor C2 is connected between the power supply wires La and Lb between the switches TR1 and TR2, and the reflux diode DR 1 is connected between the power supply wires La and Lb between the reactors L1 and L2. As a chopper action, the second switch TR2 is turned on/off with a prescribed-time delay to the first switch TR1, thereby generating the resonance action of the auxiliary capacitor C2 and the first reactor L1. A switching loss or a recovery loss when the first and second switches TR1 and TR2 and the reflux diode DR1 are turned on/off are reduced.SELECTED DRAWING: Figure 1
【課題】スイッチ及びダイオードの損失低減を図ることができる降圧チョッパ回路を提供する。【解決手段】スイッチ、還流ダイオード、リアクトルの順に配置されてなる降圧チョッパ回路１２は、スイッチとして第１及び第２スイッチＴＲ１，ＴＲ２が電源線Ｌａ上に並設、リアクトルとして第１及び第２リアクトルＬ１，Ｌ２が電源線Ｌｂ上に並設されると共に、各スイッチＴＲ１，ＴＲ２間の電源線Ｌａ，Ｌｂ間に補助コンデンサＣ２が接続、各リアクトルＬ１，Ｌ２間の電源線Ｌａ，Ｌｂ間に還流ダイオードＤＲ１が接続されてなる。そして、チョッパ動作として、第１スイッチＴＲ１に対して第２スイッチＴＲ２を所定時間遅れてオンオフ動作させることで補助コンデンサＣ２及び第１リアクトルＬ１の共振動作を生じさせ、これによる第１，第２スイッチＴＲ１，ＴＲ２及び還流ダイオードＤＲ１のオンオフ時のスイッチング損失やリカバリ損失の低減がなされる。【選択図】図１</description><language>eng ; jpn</language><subject>APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS ; CLADDING OR PLATING BY SOLDERING OR WELDING ; CONTROL OR REGULATION THEREOF ; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ; ELECTRICITY ; GENERATION ; MACHINE TOOLS ; METAL-WORKING NOT OTHERWISE PROVIDED FOR ; PERFORMING OPERATIONS ; SOLDERING OR UNSOLDERING ; TRANSPORTING ; WELDING ; WORKING BY LASER BEAM</subject><creationdate>2016</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20160530&DB=EPODOC&CC=JP&NR=2016101070A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25551,76302</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20160530&DB=EPODOC&CC=JP&NR=2016101070A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GAMO ISAMU</creatorcontrib><title>STEP-DOWN CHOPPER CIRCUIT AND POWER SUPPLY DEVICE FOR WELDING</title><description>PROBLEM TO BE SOLVED: To provide a step-down chopper circuit capable of reducing a loss of a switch and a diode.SOLUTION: In a step-down chopper circuit 12 arranged with a switch, a reflux diode, and a reactor in this order, first and second switches TR1 and TR2 are provided in parallel on a power supply wire La as the switch, and first and second reactor L1 and L2 are provided in parallel on a power supply wire Lb as the reactor. An auxiliary capacitor C2 is connected between the power supply wires La and Lb between the switches TR1 and TR2, and the reflux diode DR 1 is connected between the power supply wires La and Lb between the reactors L1 and L2. As a chopper action, the second switch TR2 is turned on/off with a prescribed-time delay to the first switch TR1, thereby generating the resonance action of the auxiliary capacitor C2 and the first reactor L1. A switching loss or a recovery loss when the first and second switches TR1 and TR2 and the reflux diode DR1 are turned on/off are reduced.SELECTED DRAWING: Figure 1
【課題】スイッチ及びダイオードの損失低減を図ることができる降圧チョッパ回路を提供する。【解決手段】スイッチ、還流ダイオード、リアクトルの順に配置されてなる降圧チョッパ回路１２は、スイッチとして第１及び第２スイッチＴＲ１，ＴＲ２が電源線Ｌａ上に並設、リアクトルとして第１及び第２リアクトルＬ１，Ｌ２が電源線Ｌｂ上に並設されると共に、各スイッチＴＲ１，ＴＲ２間の電源線Ｌａ，Ｌｂ間に補助コンデンサＣ２が接続、各リアクトルＬ１，Ｌ２間の電源線Ｌａ，Ｌｂ間に還流ダイオードＤＲ１が接続されてなる。そして、チョッパ動作として、第１スイッチＴＲ１に対して第２スイッチＴＲ２を所定時間遅れてオンオフ動作させることで補助コンデンサＣ２及び第１リアクトルＬ１の共振動作を生じさせ、これによる第１，第２スイッチＴＲ１，ＴＲ２及び還流ダイオードＤＲ１のオンオフ時のスイッチング損失やリカバリ損失の低減がなされる。【選択図】図１</description><subject>APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS</subject><subject>CLADDING OR PLATING BY SOLDERING OR WELDING</subject><subject>CONTROL OR REGULATION THEREOF</subject><subject>CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING</subject><subject>ELECTRICITY</subject><subject>GENERATION</subject><subject>MACHINE TOOLS</subject><subject>METAL-WORKING NOT OTHERWISE PROVIDED FOR</subject><subject>PERFORMING OPERATIONS</subject><subject>SOLDERING OR UNSOLDERING</subject><subject>TRANSPORTING</subject><subject>WELDING</subject><subject>WORKING BY LASER BEAM</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2016</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLANDnEN0HXxD_dTcPbwDwhwDVJw9gxyDvUMUXD0c1EI8A8HigSHBgT4RCq4uIZ5OrsquPkHKYS7-rh4-rnzMLCmJeYUp_JCaW4GJTfXEGcP3dSC_PjU4oLE5NS81JJ4rwAjA0MzQwNDA3MDR2OiFAEAgx8qLw</recordid><startdate>20160530</startdate><enddate>20160530</enddate><creator>GAMO ISAMU</creator><scope>EVB</scope></search><sort><creationdate>20160530</creationdate><title>STEP-DOWN CHOPPER CIRCUIT AND POWER SUPPLY DEVICE FOR WELDING</title><author>GAMO ISAMU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2016101070A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2016</creationdate><topic>APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS</topic><topic>CLADDING OR PLATING BY SOLDERING OR WELDING</topic><topic>CONTROL OR REGULATION THEREOF</topic><topic>CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER</topic><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING</topic><topic>ELECTRICITY</topic><topic>GENERATION</topic><topic>MACHINE TOOLS</topic><topic>METAL-WORKING NOT OTHERWISE PROVIDED FOR</topic><topic>PERFORMING OPERATIONS</topic><topic>SOLDERING OR UNSOLDERING</topic><topic>TRANSPORTING</topic><topic>WELDING</topic><topic>WORKING BY LASER BEAM</topic><toplevel>online_resources</toplevel><creatorcontrib>GAMO ISAMU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>GAMO ISAMU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>STEP-DOWN CHOPPER CIRCUIT AND POWER SUPPLY DEVICE FOR WELDING</title><date>2016-05-30</date><risdate>2016</risdate><abstract>PROBLEM TO BE SOLVED: To provide a step-down chopper circuit capable of reducing a loss of a switch and a diode.SOLUTION: In a step-down chopper circuit 12 arranged with a switch, a reflux diode, and a reactor in this order, first and second switches TR1 and TR2 are provided in parallel on a power supply wire La as the switch, and first and second reactor L1 and L2 are provided in parallel on a power supply wire Lb as the reactor. An auxiliary capacitor C2 is connected between the power supply wires La and Lb between the switches TR1 and TR2, and the reflux diode DR 1 is connected between the power supply wires La and Lb between the reactors L1 and L2. As a chopper action, the second switch TR2 is turned on/off with a prescribed-time delay to the first switch TR1, thereby generating the resonance action of the auxiliary capacitor C2 and the first reactor L1. A switching loss or a recovery loss when the first and second switches TR1 and TR2 and the reflux diode DR1 are turned on/off are reduced.SELECTED DRAWING: Figure 1
【課題】スイッチ及びダイオードの損失低減を図ることができる降圧チョッパ回路を提供する。【解決手段】スイッチ、還流ダイオード、リアクトルの順に配置されてなる降圧チョッパ回路１２は、スイッチとして第１及び第２スイッチＴＲ１，ＴＲ２が電源線Ｌａ上に並設、リアクトルとして第１及び第２リアクトルＬ１，Ｌ２が電源線Ｌｂ上に並設されると共に、各スイッチＴＲ１，ＴＲ２間の電源線Ｌａ，Ｌｂ間に補助コンデンサＣ２が接続、各リアクトルＬ１，Ｌ２間の電源線Ｌａ，Ｌｂ間に還流ダイオードＤＲ１が接続されてなる。そして、チョッパ動作として、第１スイッチＴＲ１に対して第２スイッチＴＲ２を所定時間遅れてオンオフ動作させることで補助コンデンサＣ２及び第１リアクトルＬ１の共振動作を生じさせ、これによる第１，第２スイッチＴＲ１，ＴＲ２及び還流ダイオードＤＲ１のオンオフ時のスイッチング損失やリカバリ損失の低減がなされる。【選択図】図１</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CLADDING OR PLATING BY SOLDERING OR WELDING CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ELECTRICITY GENERATION MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM |
| title | STEP-DOWN CHOPPER CIRCUIT AND POWER SUPPLY DEVICE FOR WELDING |
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