SWITCHING POWER SUPPLY
PROBLEM TO BE SOLVED: To provide a switching power supply which can actualize a control circuit using a semiconductor integrated circuit which uses a conventional inexpensive process, without using complicated and expensive triple well and SOI processes.SOLUTION: The switching power supply includes:...
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| creator | MIZOE KIMIYOSHI KONNO NOBU |
| description | PROBLEM TO BE SOLVED: To provide a switching power supply which can actualize a control circuit using a semiconductor integrated circuit which uses a conventional inexpensive process, without using complicated and expensive triple well and SOI processes.SOLUTION: The switching power supply includes: a voltage/current conversion circuit 10 which converts a positive voltage, which is generated at an auxiliary winding L3 when a power transistor MP1 is switched on, into a positive current, and converts a negative voltage, which is generated when switched off, into a negative current; a voltage clamp circuit 20 which generates a first clamp voltage on the basis of the positive current from the voltage/current conversion circuit, and generates a second clamp voltage on the basis of the negative current; a first capacitor C3 which is charged when the first clamp voltage is generated in the voltage clamp circuit and discharged when the second clamp voltage is generated; and a drive circuit 30 which switches off the power transistor when a voltage VC3 charged in the first capacitor exceeds a voltage V2, and switches off the power transistor when the voltage VC3 falls below voltage V2 lower than voltage V1.SELECTED DRAWING: Figure 3
【課題】複雑で高価なトリプルウエルやＳＯＩプロセスを使用せず、従来の安価なプロセスを使用した半導体集積回路により制御回路を実現できるスイッチング電源装置を提供する。【解決手段】パワートランジスタＭＰ１がオンした際に補助巻線Ｌ３に発生する正電圧を正電流に変換し、オフした際に発生する負電圧を負電流に変換する電圧／電流変換回路１０と、電圧／電流変換回路からの正電流に基づいて第１のクランプ電圧を発生し、負電流に基づいて第２のクランプ電圧を発生する電圧クランプ回路２０と、電圧クランプ回路で第１のクランプ電圧が発生しているときに充電され、第２のクランプ電圧が発生しているときに放電される第１のコンデンサＣ３と、第１のコンデンサに充電された電圧ＶＣ３が電圧Ｖ２を超えるとパワートランジスタをオフさせ、電圧ＶＣ３が電圧Ｖ１より低い電圧Ｖ２を下回るとパワートランジスタをオンさせるドライブ回路３０を備える。【選択図】図３ |
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【課題】複雑で高価なトリプルウエルやＳＯＩプロセスを使用せず、従来の安価なプロセスを使用した半導体集積回路により制御回路を実現できるスイッチング電源装置を提供する。【解決手段】パワートランジスタＭＰ１がオンした際に補助巻線Ｌ３に発生する正電圧を正電流に変換し、オフした際に発生する負電圧を負電流に変換する電圧／電流変換回路１０と、電圧／電流変換回路からの正電流に基づいて第１のクランプ電圧を発生し、負電流に基づいて第２のクランプ電圧を発生する電圧クランプ回路２０と、電圧クランプ回路で第１のクランプ電圧が発生しているときに充電され、第２のクランプ電圧が発生しているときに放電される第１のコンデンサＣ３と、第１のコンデンサに充電された電圧ＶＣ３が電圧Ｖ２を超えるとパワートランジスタをオフさせ、電圧ＶＣ３が電圧Ｖ１より低い電圧Ｖ２を下回るとパワートランジスタをオンさせるドライブ回路３０を備える。【選択図】図３</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>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=20161013&DB=EPODOC&CC=JP&NR=2016181980A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20161013&DB=EPODOC&CC=JP&NR=2016181980A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MIZOE KIMIYOSHI</creatorcontrib><creatorcontrib>KONNO NOBU</creatorcontrib><title>SWITCHING POWER SUPPLY</title><description>PROBLEM TO BE SOLVED: To provide a switching power supply which can actualize a control circuit using a semiconductor integrated circuit which uses a conventional inexpensive process, without using complicated and expensive triple well and SOI processes.SOLUTION: The switching power supply includes: a voltage/current conversion circuit 10 which converts a positive voltage, which is generated at an auxiliary winding L3 when a power transistor MP1 is switched on, into a positive current, and converts a negative voltage, which is generated when switched off, into a negative current; a voltage clamp circuit 20 which generates a first clamp voltage on the basis of the positive current from the voltage/current conversion circuit, and generates a second clamp voltage on the basis of the negative current; a first capacitor C3 which is charged when the first clamp voltage is generated in the voltage clamp circuit and discharged when the second clamp voltage is generated; and a drive circuit 30 which switches off the power transistor when a voltage VC3 charged in the first capacitor exceeds a voltage V2, and switches off the power transistor when the voltage VC3 falls below voltage V2 lower than voltage V1.SELECTED DRAWING: Figure 3
【課題】複雑で高価なトリプルウエルやＳＯＩプロセスを使用せず、従来の安価なプロセスを使用した半導体集積回路により制御回路を実現できるスイッチング電源装置を提供する。【解決手段】パワートランジスタＭＰ１がオンした際に補助巻線Ｌ３に発生する正電圧を正電流に変換し、オフした際に発生する負電圧を負電流に変換する電圧／電流変換回路１０と、電圧／電流変換回路からの正電流に基づいて第１のクランプ電圧を発生し、負電流に基づいて第２のクランプ電圧を発生する電圧クランプ回路２０と、電圧クランプ回路で第１のクランプ電圧が発生しているときに充電され、第２のクランプ電圧が発生しているときに放電される第１のコンデンサＣ３と、第１のコンデンサに充電された電圧ＶＣ３が電圧Ｖ２を超えるとパワートランジスタをオフさせ、電圧ＶＣ３が電圧Ｖ１より低い電圧Ｖ２を下回るとパワートランジスタをオンさせるドライブ回路３０を備える。【選択図】図３</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>2016</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBALDvcMcfbw9HNXCPAPdw1SCA4NCPCJ5GFgTUvMKU7lhdLcDEpurkB1uqkF-fGpxQWJyal5qSXxXgFGBoZmhhaGlhYGjsZEKQIADfwf4w</recordid><startdate>20161013</startdate><enddate>20161013</enddate><creator>MIZOE KIMIYOSHI</creator><creator>KONNO NOBU</creator><scope>EVB</scope></search><sort><creationdate>20161013</creationdate><title>SWITCHING POWER SUPPLY</title><author>MIZOE KIMIYOSHI ; KONNO NOBU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2016181980A3</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>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>MIZOE KIMIYOSHI</creatorcontrib><creatorcontrib>KONNO NOBU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MIZOE KIMIYOSHI</au><au>KONNO NOBU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>SWITCHING POWER SUPPLY</title><date>2016-10-13</date><risdate>2016</risdate><abstract>PROBLEM TO BE SOLVED: To provide a switching power supply which can actualize a control circuit using a semiconductor integrated circuit which uses a conventional inexpensive process, without using complicated and expensive triple well and SOI processes.SOLUTION: The switching power supply includes: a voltage/current conversion circuit 10 which converts a positive voltage, which is generated at an auxiliary winding L3 when a power transistor MP1 is switched on, into a positive current, and converts a negative voltage, which is generated when switched off, into a negative current; a voltage clamp circuit 20 which generates a first clamp voltage on the basis of the positive current from the voltage/current conversion circuit, and generates a second clamp voltage on the basis of the negative current; a first capacitor C3 which is charged when the first clamp voltage is generated in the voltage clamp circuit and discharged when the second clamp voltage is generated; and a drive circuit 30 which switches off the power transistor when a voltage VC3 charged in the first capacitor exceeds a voltage V2, and switches off the power transistor when the voltage VC3 falls below voltage V2 lower than voltage V1.SELECTED DRAWING: Figure 3
【課題】複雑で高価なトリプルウエルやＳＯＩプロセスを使用せず、従来の安価なプロセスを使用した半導体集積回路により制御回路を実現できるスイッチング電源装置を提供する。【解決手段】パワートランジスタＭＰ１がオンした際に補助巻線Ｌ３に発生する正電圧を正電流に変換し、オフした際に発生する負電圧を負電流に変換する電圧／電流変換回路１０と、電圧／電流変換回路からの正電流に基づいて第１のクランプ電圧を発生し、負電流に基づいて第２のクランプ電圧を発生する電圧クランプ回路２０と、電圧クランプ回路で第１のクランプ電圧が発生しているときに充電され、第２のクランプ電圧が発生しているときに放電される第１のコンデンサＣ３と、第１のコンデンサに充電された電圧ＶＣ３が電圧Ｖ２を超えるとパワートランジスタをオフさせ、電圧ＶＣ３が電圧Ｖ１より低い電圧Ｖ２を下回るとパワートランジスタをオンさせるドライブ回路３０を備える。【選択図】図３</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 | SWITCHING POWER SUPPLY |
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