APPARATUS FOR CONSTANT CURRENT DRIVING WITH IMPROVING POWER FACTOR
The present invention relates to an apparatus and method for driving a constant current from an input of commercial alternating current power and, more specifically, to a constant current apparatus and method for effectively driving an LED. The apparatus for driving an LED according to the present i...
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| creator | RYU, MYUNG HYO BEAK, JU WON SEO, KIL SOO KIM, JONG HYUN YOO, DONG WOOK |
| description | The present invention relates to an apparatus and method for driving a constant current from an input of commercial alternating current power and, more specifically, to a constant current apparatus and method for effectively driving an LED. The apparatus for driving an LED according to the present invention comprises: first to third LED groups connected to an alternating current power source; a rectifier part; an input voltage sensing part; a charge and discharge part; first to third driving current control parts; and first and second flicker improving parts, wherein a voltage charged in the charge and discharge part is provided to at least one of the first to third LED groups when the sensed input voltage reaches a predefined critical value or less.
본 발명에 따른 엘이디를 구동하기 위한 장치는 교류 전원에 연결되는 제 1 내지 제 3 엘이디 그룹, 정류부, 입력전압 센싱부, 충방전부, 제1 내지 제 3 구동 전류 제어부, 및 제 1 및 제 2 플리커 개선부를 포함하되, 센싱된 입력 전압이 기 설정된 임계치 이하가 되면 상기 충방전부에 충전된 전압을 상기 제1 엘이디 그룹, 상기 제2 엘이디 그룹 및 상기 제3 엘이디 그룹 중 적어도 하나에 제공하는 것을 특징으로 한다. |
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본 발명에 따른 엘이디를 구동하기 위한 장치는 교류 전원에 연결되는 제 1 내지 제 3 엘이디 그룹, 정류부, 입력전압 센싱부, 충방전부, 제1 내지 제 3 구동 전류 제어부, 및 제 1 및 제 2 플리커 개선부를 포함하되, 센싱된 입력 전압이 기 설정된 임계치 이하가 되면 상기 충방전부에 충전된 전압을 상기 제1 엘이디 그룹, 상기 제2 엘이디 그룹 및 상기 제3 엘이디 그룹 중 적어도 하나에 제공하는 것을 특징으로 한다.</description><language>eng ; kor</language><subject>CONTROLLING ; ELECTRIC HEATING ; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; PHYSICS ; REGULATING ; SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES</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=20160229&DB=EPODOC&CC=KR&NR=20160021961A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20160229&DB=EPODOC&CC=KR&NR=20160021961A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>RYU, MYUNG HYO</creatorcontrib><creatorcontrib>BEAK, JU WON</creatorcontrib><creatorcontrib>SEO, KIL SOO</creatorcontrib><creatorcontrib>KIM, JONG HYUN</creatorcontrib><creatorcontrib>YOO, DONG WOOK</creatorcontrib><title>APPARATUS FOR CONSTANT CURRENT DRIVING WITH IMPROVING POWER FACTOR</title><description>The present invention relates to an apparatus and method for driving a constant current from an input of commercial alternating current power and, more specifically, to a constant current apparatus and method for effectively driving an LED. The apparatus for driving an LED according to the present invention comprises: first to third LED groups connected to an alternating current power source; a rectifier part; an input voltage sensing part; a charge and discharge part; first to third driving current control parts; and first and second flicker improving parts, wherein a voltage charged in the charge and discharge part is provided to at least one of the first to third LED groups when the sensed input voltage reaches a predefined critical value or less.
본 발명에 따른 엘이디를 구동하기 위한 장치는 교류 전원에 연결되는 제 1 내지 제 3 엘이디 그룹, 정류부, 입력전압 센싱부, 충방전부, 제1 내지 제 3 구동 전류 제어부, 및 제 1 및 제 2 플리커 개선부를 포함하되, 센싱된 입력 전압이 기 설정된 임계치 이하가 되면 상기 충방전부에 충전된 전압을 상기 제1 엘이디 그룹, 상기 제2 엘이디 그룹 및 상기 제3 엘이디 그룹 중 적어도 하나에 제공하는 것을 특징으로 한다.</description><subject>CONTROLLING</subject><subject>ELECTRIC HEATING</subject><subject>ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRICITY</subject><subject>PHYSICS</subject><subject>REGULATING</subject><subject>SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2016</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHByDAhwDHIMCQ1WcPMPUnD29wsOcfQLUXAODQpyBdIuQZ5hnn7uCuGeIR4Knr4BQf5gboB_uGuQgpujc4h_EA8Da1piTnEqL5TmZlB2cw1x9tBNLciPTy0uSExOzUstifcOMjIwNDMwMDK0NDN0NCZOFQDjRix4</recordid><startdate>20160229</startdate><enddate>20160229</enddate><creator>RYU, MYUNG HYO</creator><creator>BEAK, JU WON</creator><creator>SEO, KIL SOO</creator><creator>KIM, JONG HYUN</creator><creator>YOO, DONG WOOK</creator><scope>EVB</scope></search><sort><creationdate>20160229</creationdate><title>APPARATUS FOR CONSTANT CURRENT DRIVING WITH IMPROVING POWER FACTOR</title><author>RYU, MYUNG HYO ; BEAK, JU WON ; SEO, KIL SOO ; KIM, JONG HYUN ; YOO, DONG WOOK</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_KR20160021961A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; kor</language><creationdate>2016</creationdate><topic>CONTROLLING</topic><topic>ELECTRIC HEATING</topic><topic>ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRICITY</topic><topic>PHYSICS</topic><topic>REGULATING</topic><topic>SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES</topic><toplevel>online_resources</toplevel><creatorcontrib>RYU, MYUNG HYO</creatorcontrib><creatorcontrib>BEAK, JU WON</creatorcontrib><creatorcontrib>SEO, KIL SOO</creatorcontrib><creatorcontrib>KIM, JONG HYUN</creatorcontrib><creatorcontrib>YOO, DONG WOOK</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>RYU, MYUNG HYO</au><au>BEAK, JU WON</au><au>SEO, KIL SOO</au><au>KIM, JONG HYUN</au><au>YOO, DONG WOOK</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>APPARATUS FOR CONSTANT CURRENT DRIVING WITH IMPROVING POWER FACTOR</title><date>2016-02-29</date><risdate>2016</risdate><abstract>The present invention relates to an apparatus and method for driving a constant current from an input of commercial alternating current power and, more specifically, to a constant current apparatus and method for effectively driving an LED. The apparatus for driving an LED according to the present invention comprises: first to third LED groups connected to an alternating current power source; a rectifier part; an input voltage sensing part; a charge and discharge part; first to third driving current control parts; and first and second flicker improving parts, wherein a voltage charged in the charge and discharge part is provided to at least one of the first to third LED groups when the sensed input voltage reaches a predefined critical value or less.
본 발명에 따른 엘이디를 구동하기 위한 장치는 교류 전원에 연결되는 제 1 내지 제 3 엘이디 그룹, 정류부, 입력전압 센싱부, 충방전부, 제1 내지 제 3 구동 전류 제어부, 및 제 1 및 제 2 플리커 개선부를 포함하되, 센싱된 입력 전압이 기 설정된 임계치 이하가 되면 상기 충방전부에 충전된 전압을 상기 제1 엘이디 그룹, 상기 제2 엘이디 그룹 및 상기 제3 엘이디 그룹 중 적어도 하나에 제공하는 것을 특징으로 한다.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CONTROLLING ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY PHYSICS REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES |
| title | APPARATUS FOR CONSTANT CURRENT DRIVING WITH IMPROVING POWER FACTOR |
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