AC SYNCHRONIZING SIGNAL DETECTION CIRCUIT
PROBLEM TO BE SOLVED: To easily detect the synchronizing signal of an AC power supply, without having to separately provide a rectifying circuit by comparing first output for outputting a pulsation voltage obtained by changing an AC voltage to a DC voltage by a voltage doubler rectification circuit...
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| creator | HONGO TOSHIICHI YAMAMOTO HIROTSUGU IKEGAMI KOICHI |
| description | PROBLEM TO BE SOLVED: To easily detect the synchronizing signal of an AC power supply, without having to separately provide a rectifying circuit by comparing first output for outputting a pulsation voltage obtained by changing an AC voltage to a DC voltage by a voltage doubler rectification circuit with second output for outputting a DC voltage, obtained by smoothing the AC voltage by the voltage double rectifying circuit. SOLUTION: A detection circuit 1 of an AC synchronizing signal utilizes a voltage doubler rectifying circuit 4, where an AC power supply 2 to an input side and a load 3 is connected to an output side, thus detecting an AC synchronization signal. In this case, first voltage-dividing resistors R1 and R2 divide a pulsation voltage that is changed to a DC voltage by rectifying diodes D1 and D2, and second voltage-dividing resistors R3 and R4 divide a DC voltage that is smoothed by voltage double rectification. Then, the divided pulsation voltage is compared with the DC voltage by a comparison part 6, thus connecting the output of the comparison part 6 to a signal formation circuit 7 for converting to a synchronizing signal that can be easily utilized by the load 3 or the like and corresponds to an arbitrary AC power supply phase angle. |
| format | Patent |
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SOLUTION: A detection circuit 1 of an AC synchronizing signal utilizes a voltage doubler rectifying circuit 4, where an AC power supply 2 to an input side and a load 3 is connected to an output side, thus detecting an AC synchronization signal. In this case, first voltage-dividing resistors R1 and R2 divide a pulsation voltage that is changed to a DC voltage by rectifying diodes D1 and D2, and second voltage-dividing resistors R3 and R4 divide a DC voltage that is smoothed by voltage double rectification. Then, the divided pulsation voltage is compared with the DC voltage by a comparison part 6, thus connecting the output of the comparison part 6 to a signal formation circuit 7 for converting to a synchronizing signal that can be easily utilized by the load 3 or the like and corresponds to an arbitrary AC power supply phase angle.</description><edition>7</edition><language>eng</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>2001</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=20010330&DB=EPODOC&CC=JP&NR=2001086756A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76516</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20010330&DB=EPODOC&CC=JP&NR=2001086756A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HONGO TOSHIICHI</creatorcontrib><creatorcontrib>YAMAMOTO HIROTSUGU</creatorcontrib><creatorcontrib>IKEGAMI KOICHI</creatorcontrib><title>AC SYNCHRONIZING SIGNAL DETECTION CIRCUIT</title><description>PROBLEM TO BE SOLVED: To easily detect the synchronizing signal of an AC power supply, without having to separately provide a rectifying circuit by comparing first output for outputting a pulsation voltage obtained by changing an AC voltage to a DC voltage by a voltage doubler rectification circuit with second output for outputting a DC voltage, obtained by smoothing the AC voltage by the voltage double rectifying circuit. SOLUTION: A detection circuit 1 of an AC synchronizing signal utilizes a voltage doubler rectifying circuit 4, where an AC power supply 2 to an input side and a load 3 is connected to an output side, thus detecting an AC synchronization signal. In this case, first voltage-dividing resistors R1 and R2 divide a pulsation voltage that is changed to a DC voltage by rectifying diodes D1 and D2, and second voltage-dividing resistors R3 and R4 divide a DC voltage that is smoothed by voltage double rectification. Then, the divided pulsation voltage is compared with the DC voltage by a comparison part 6, thus connecting the output of the comparison part 6 to a signal formation circuit 7 for converting to a synchronizing signal that can be easily utilized by the load 3 or the like and corresponds to an arbitrary AC power supply phase angle.</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>2001</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNB0dFYIjvRz9gjy9_OM8vRzVwj2dPdz9FFwcQ1xdQ7x9PdTcPYMcg71DOFhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFeAUYGBoYGFmbmpmaOxkQpAgCAjCTz</recordid><startdate>20010330</startdate><enddate>20010330</enddate><creator>HONGO TOSHIICHI</creator><creator>YAMAMOTO HIROTSUGU</creator><creator>IKEGAMI KOICHI</creator><scope>EVB</scope></search><sort><creationdate>20010330</creationdate><title>AC SYNCHRONIZING SIGNAL DETECTION CIRCUIT</title><author>HONGO TOSHIICHI ; YAMAMOTO HIROTSUGU ; IKEGAMI KOICHI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2001086756A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2001</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>HONGO TOSHIICHI</creatorcontrib><creatorcontrib>YAMAMOTO HIROTSUGU</creatorcontrib><creatorcontrib>IKEGAMI KOICHI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>HONGO TOSHIICHI</au><au>YAMAMOTO HIROTSUGU</au><au>IKEGAMI KOICHI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>AC SYNCHRONIZING SIGNAL DETECTION CIRCUIT</title><date>2001-03-30</date><risdate>2001</risdate><abstract>PROBLEM TO BE SOLVED: To easily detect the synchronizing signal of an AC power supply, without having to separately provide a rectifying circuit by comparing first output for outputting a pulsation voltage obtained by changing an AC voltage to a DC voltage by a voltage doubler rectification circuit with second output for outputting a DC voltage, obtained by smoothing the AC voltage by the voltage double rectifying circuit. SOLUTION: A detection circuit 1 of an AC synchronizing signal utilizes a voltage doubler rectifying circuit 4, where an AC power supply 2 to an input side and a load 3 is connected to an output side, thus detecting an AC synchronization signal. In this case, first voltage-dividing resistors R1 and R2 divide a pulsation voltage that is changed to a DC voltage by rectifying diodes D1 and D2, and second voltage-dividing resistors R3 and R4 divide a DC voltage that is smoothed by voltage double rectification. Then, the divided pulsation voltage is compared with the DC voltage by a comparison part 6, thus connecting the output of the comparison part 6 to a signal formation circuit 7 for converting to a synchronizing signal that can be easily utilized by the load 3 or the like and corresponds to an arbitrary AC power supply phase angle.</abstract><edition>7</edition><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 | AC SYNCHRONIZING SIGNAL DETECTION CIRCUIT |
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