Power supply device, semiconductor integrated circuit, and ripple suppression method

Power supply device, semiconductor integrated circuit, and ripple suppression method

Provided are a power supply device, a semiconductor integrated circuit, and a ripple suppression method capable of suppressing ripples occurring in an output current with low loss even when ripple is added to a DC voltage in a power supply device that converts an AC power supply into a DC voltage an...

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Hauptverfasser: ENDO, NAOTO, IMADE, DAISUKE
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Sprache:chi ; eng
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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
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creator ENDO, NAOTO
IMADE, DAISUKE
description Provided are a power supply device, a semiconductor integrated circuit, and a ripple suppression method capable of suppressing ripples occurring in an output current with low loss even when ripple is added to a DC voltage in a power supply device that converts an AC power supply into a DC voltage and supplies the DC voltage. The power supply device (1E) includes: a voltage conversion circuit (11) for generating a direct current voltage from an alternating current power supply and outputting the direct current voltage between a pair of output terminals; a voltage conversion circuit (11) provided on a first current path through which an output current flows, and for controlling a current in the first current path; and a current control circuit (50) for driving the current control unit (M1), based on the output current (VLED) at a first potential point set on the first current path from the output unit on the high potential side of the voltage conversion circuit (11) to the path of the current control unit (M1)
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The power supply device (1E) includes: a voltage conversion circuit (11) for generating a direct current voltage from an alternating current power supply and outputting the direct current voltage between a pair of output terminals; a voltage conversion circuit (11) provided on a first current path through which an output current flows, and for controlling a current in the first current path; and a current control circuit (50) for driving the current control unit (M1), based on the output current (VLED) at a first potential point set on the first current path from the output unit on the high potential side of the voltage conversion circuit (11) to the path of the current control unit (M1)</description><language>chi ; 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>2019</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&amp;date=20190801&amp;DB=EPODOC&amp;CC=TW&amp;NR=201931743A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25547,76298</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20190801&amp;DB=EPODOC&amp;CC=TW&amp;NR=201931743A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ENDO, NAOTO</creatorcontrib><creatorcontrib>IMADE, DAISUKE</creatorcontrib><title>Power supply device, semiconductor integrated circuit, and ripple suppression method</title><description>Provided are a power supply device, a semiconductor integrated circuit, and a ripple suppression method capable of suppressing ripples occurring in an output current with low loss even when ripple is added to a DC voltage in a power supply device that converts an AC power supply into a DC voltage and supplies the DC voltage. 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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 supply device, semiconductor integrated circuit, and ripple suppression method
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