POWER CONVERSION DEVICE
To provide a small, low-cost, accurate, and high-efficiency power conversion device that can conduct synchronous rectification.SOLUTION: A power conversion device includes an input terminal pair, an output terminal pair, a first capacitor, a first switching part, a second switching part, a reactor,...
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| creator | HASHIMOTO TAKURO HIRAI KUNIYUKI |
| description | To provide a small, low-cost, accurate, and high-efficiency power conversion device that can conduct synchronous rectification.SOLUTION: A power conversion device includes an input terminal pair, an output terminal pair, a first capacitor, a first switching part, a second switching part, a reactor, a transformer, a second capacitor, and a control unit. The control unit includes: a continuity determination unit that determines whether a reactor current is continuous or discontinuous; a synchronous rectification timing computing unit that calculates a synchronous rectification control timing of a second switching control signal for controlling switching of the second switching part in order to rectify an AC current being supplied from the first switching part to the second switching part via the reactor and the transformer depending on whether it is continuous or discontinuous, under control of the second switching part in synchronization with control of the first switching part; and a control signal output unit that generates and outputs a first switching control signal and the second switching control signal on the basis of the synchronous rectification control timing.SELECTED DRAWING: Figure 2
【課題】小型低コスト精緻な同期整流を実現できる高効率の電力変換装置を提供する。【解決手段】入力端子対と、出力端子対と、第１コンデンサと、第１スイッチング部と、第２スイッチング部と、リアクトルと、トランスと、第２コンデンサと、制御部と、を備える電力変換装置において、制御部は、リアクトル電流の連続・不連続を判定する連続判定部と、連続・不連続に応じて、第１スイッチング部からリアクトル及びトランスを介して、第２スイッチング部に供給される交流電流を、第１スイッチング部の制御と同期した第２スイッチング部の制御により整流するための、該第２スイッチング部のスイッチングを制御する第２スイッチング制御信号の同期整流用制御タイミングを算出する同期整流用タイミング演算部と、同期整流用制御タイミングに基づいて、第１スイッチング制御信号及び第２スイッチング制御信号を生成して出力する制御信号出力部と、を有する。【選択図】図２ |
| format | Patent |
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【課題】小型低コスト精緻な同期整流を実現できる高効率の電力変換装置を提供する。【解決手段】入力端子対と、出力端子対と、第１コンデンサと、第１スイッチング部と、第２スイッチング部と、リアクトルと、トランスと、第２コンデンサと、制御部と、を備える電力変換装置において、制御部は、リアクトル電流の連続・不連続を判定する連続判定部と、連続・不連続に応じて、第１スイッチング部からリアクトル及びトランスを介して、第２スイッチング部に供給される交流電流を、第１スイッチング部の制御と同期した第２スイッチング部の制御により整流するための、該第２スイッチング部のスイッチングを制御する第２スイッチング制御信号の同期整流用制御タイミングを算出する同期整流用タイミング演算部と、同期整流用制御タイミングに基づいて、第１スイッチング制御信号及び第２スイッチング制御信号を生成して出力する制御信号出力部と、を有する。【選択図】図２</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 ; CONTROL OR REGULATION THEREOF ; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRICITY ; GENERATION</subject><creationdate>2023</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=20230728&DB=EPODOC&CC=JP&NR=2023104753A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230728&DB=EPODOC&CC=JP&NR=2023104753A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HASHIMOTO TAKURO</creatorcontrib><creatorcontrib>HIRAI KUNIYUKI</creatorcontrib><title>POWER CONVERSION DEVICE</title><description>To provide a small, low-cost, accurate, and high-efficiency power conversion device that can conduct synchronous rectification.SOLUTION: A power conversion device includes an input terminal pair, an output terminal pair, a first capacitor, a first switching part, a second switching part, a reactor, a transformer, a second capacitor, and a control unit. The control unit includes: a continuity determination unit that determines whether a reactor current is continuous or discontinuous; a synchronous rectification timing computing unit that calculates a synchronous rectification control timing of a second switching control signal for controlling switching of the second switching part in order to rectify an AC current being supplied from the first switching part to the second switching part via the reactor and the transformer depending on whether it is continuous or discontinuous, under control of the second switching part in synchronization with control of the first switching part; and a control signal output unit that generates and outputs a first switching control signal and the second switching control signal on the basis of the synchronous rectification control timing.SELECTED DRAWING: Figure 2
【課題】小型低コスト精緻な同期整流を実現できる高効率の電力変換装置を提供する。【解決手段】入力端子対と、出力端子対と、第１コンデンサと、第１スイッチング部と、第２スイッチング部と、リアクトルと、トランスと、第２コンデンサと、制御部と、を備える電力変換装置において、制御部は、リアクトル電流の連続・不連続を判定する連続判定部と、連続・不連続に応じて、第１スイッチング部からリアクトル及びトランスを介して、第２スイッチング部に供給される交流電流を、第１スイッチング部の制御と同期した第２スイッチング部の制御により整流するための、該第２スイッチング部のスイッチングを制御する第２スイッチング制御信号の同期整流用制御タイミングを算出する同期整流用タイミング演算部と、同期整流用制御タイミングに基づいて、第１スイッチング制御信号及び第２スイッチング制御信号を生成して出力する制御信号出力部と、を有する。【選択図】図２</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>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>ELECTRICITY</subject><subject>GENERATION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBAP8A93DVJw9vcLcw0K9vT3U3BxDfN0duVhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFeAUYGRsaGBibmpsaOxkQpAgAbUh_r</recordid><startdate>20230728</startdate><enddate>20230728</enddate><creator>HASHIMOTO TAKURO</creator><creator>HIRAI KUNIYUKI</creator><scope>EVB</scope></search><sort><creationdate>20230728</creationdate><title>POWER CONVERSION DEVICE</title><author>HASHIMOTO TAKURO ; HIRAI KUNIYUKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2023104753A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2023</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>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>ELECTRICITY</topic><topic>GENERATION</topic><toplevel>online_resources</toplevel><creatorcontrib>HASHIMOTO TAKURO</creatorcontrib><creatorcontrib>HIRAI KUNIYUKI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>HASHIMOTO TAKURO</au><au>HIRAI KUNIYUKI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>POWER CONVERSION DEVICE</title><date>2023-07-28</date><risdate>2023</risdate><abstract>To provide a small, low-cost, accurate, and high-efficiency power conversion device that can conduct synchronous rectification.SOLUTION: A power conversion device includes an input terminal pair, an output terminal pair, a first capacitor, a first switching part, a second switching part, a reactor, a transformer, a second capacitor, and a control unit. The control unit includes: a continuity determination unit that determines whether a reactor current is continuous or discontinuous; a synchronous rectification timing computing unit that calculates a synchronous rectification control timing of a second switching control signal for controlling switching of the second switching part in order to rectify an AC current being supplied from the first switching part to the second switching part via the reactor and the transformer depending on whether it is continuous or discontinuous, under control of the second switching part in synchronization with control of the first switching part; and a control signal output unit that generates and outputs a first switching control signal and the second switching control signal on the basis of the synchronous rectification control timing.SELECTED DRAWING: Figure 2
【課題】小型低コスト精緻な同期整流を実現できる高効率の電力変換装置を提供する。【解決手段】入力端子対と、出力端子対と、第１コンデンサと、第１スイッチング部と、第２スイッチング部と、リアクトルと、トランスと、第２コンデンサと、制御部と、を備える電力変換装置において、制御部は、リアクトル電流の連続・不連続を判定する連続判定部と、連続・不連続に応じて、第１スイッチング部からリアクトル及びトランスを介して、第２スイッチング部に供給される交流電流を、第１スイッチング部の制御と同期した第２スイッチング部の制御により整流するための、該第２スイッチング部のスイッチングを制御する第２スイッチング制御信号の同期整流用制御タイミングを算出する同期整流用タイミング演算部と、同期整流用制御タイミングに基づいて、第１スイッチング制御信号及び第２スイッチング制御信号を生成して出力する制御信号出力部と、を有する。【選択図】図２</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 CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION |
| title | POWER CONVERSION DEVICE |
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