TheLED kutyaira magetsi ekupainoshandura iyo magetsi kuita yakananga voltage uye ikozvino kutyaira iyo voltage converter ye LED. Kazhinji: kuiswa kweLED kutyaira magetsi ekupainosanganisira high-voltage power frequency AC, low-voltage DC, high-voltage DC, low-voltage high-frequency AC, etc. Saka nhasi ini ndichakuratidzai LED inogara iine magetsi magetsi.
Constant voltage power supplynzira yekutyaira
Constant voltage power supply
1. Mushure mokunge magetsi ekugadzirisa magetsi anogadzirisa maitiro akasiyana-siyana, anobudisa mhepo yakagadziriswa, asi inobuda ikozvino inoshanduka nekuwedzera kana kuderera kwemutoro.
2. Kunyangwe iyo voltage inodzikamisa dunhu haityi kuvhurwa kwemutoro, inorambidzwa zvachose kupfupika-kutenderera mutoro.
3. Kuchinja kwemagetsi mushure mekugadzirisa kuchakanganisa kupenya kwe LED.
4. Kuita tambo imwe neimwe ye LED inotyairwa nevoltage inodzikamisa redunhu kuratidza yunifomu kupenya, yakakodzera resistor inoda kuwedzerwa.
5. Constant voltage driving circuit inonyanya kunaka pakutyaira LED, uye nguva dzose voltage ndiyo nzira yemangwana.
Hunhu hwenguva dzose magetsi magetsi
(1) Kuvimbika kwakakwirira
Kunyanya semagetsi ekufambisa emagetsi emumugwagwa e LED, anoiswa pakakwirira, zvichiita kuti kugadzirisa kusanetsa uye kudhura.
(2) Kubudirira kwepamusoro
LED chigadzirwa chekuchengetedza simba, uye kushanda kwemagetsi ekufambisa kunofanirwa kunge kwakakwira. Zvinonyanya kukosha kubvisa kupisa kubva pajoko apo magetsi anoiswa mukati me luminaire. Kubudirira kwesimba rekushandisa kwakakwirira, kushandiswa kwayo kwesimba kuduku, uye kupisa kunogadzirwa mumwenje kuduku, izvo zvinoderedzawo kukwira kwekushisa kwemwenje. Zvinobatsira kunonoka kuora kwechiedza che LED.
(3) High power factor
Simba chinhu chinodiwa chegetsi remagetsi pamutoro. Kazhinji, hapana zviratidzo zvinosungirwa zvemidziyo yemagetsi iri pasi pe70 watts. Kunyange zvazvo simba rakaderera rechinhu chimwe chete chemagetsi chine simba duku richava nemigumisiro shoma pane girasi remagetsi, kuwanda kwechiedza chinoshandiswa usiku uye kuwanda kwekutakura kwakafanana kunokonzera kusvibiswa kwakakomba kune girasi remagetsi. Kune 30- kusvika 40-watt LED yekutyaira magetsi emagetsi, zvinonzi panogona kunge paine zvimwe zvinodikanwa zvemagetsi zvinhu munguva pfupi iri kutevera.
(4) Kuwedzera kudzivirira
Kugona kwe LED kutsungirira masurges ishoma, kunyanya kugona kwayo kutsungirira reverse voltage. Kusimbisa kudzivirira munzvimbo iyi kunokosha zvakare. Mamwe marambi e LED anoiswa kunze, akadai semwenje yemugwagwa we LED. Nekuda kwekushandiswa kwegidhi mutoro uye kuiswa kwekurova kwemheni, kuputika kwakasiyana kunozopinda kubva kune grid system, uye kumwe kuvhiya kunokonzeresa kukuvadza ku LED. Naizvozvo, zvinoongororwa kuti simba rekutyaira re "Zhongke Huibao" rinofanira kunge riine zvimwe zvinoshomeka mukudzivirira kwekuvhiya. Kana zviri zvekudzoreredzwa kwemagetsi emagetsi uye mwenje, iyo LED yekutyaira magetsi inofanirwa kuve nekugona kudzvanya kupindira kwezvikwiriso uye kudzivirira iyo LED kubva mukukuvadzwa.
(5) Basa rekudzivirira
Kuwedzera kune akajairwa kuchengetedza mabasa emagetsi ekupa, zviri nani kuwedzera LED tembiricha yakashata mhinduro kune inogara iripo inobuda kudzivirira tembiricha ye LED kubva pakunyanya; inofanirwa kuenderana nemirairo yekuchengetedza uye electromagnetic kuenderana zvinodiwa.
Constant voltage magetsi emagetsiinogona kukamurwa muzvikamu zvitanhatu zvichienderana nedunhu redunhu
1. Yakajairika transformer danho-pasi:
Kubatsira kwerudzi urwu rwemagetsi ndiko kukura kwayo kuduku. Izvo zvakashata ndezvekuti inorema muhuremu uye kushanda kwemagetsi kwakadzikira zvakare, kazhinji pakati pe45% ne60%. Nokuti kuvimbika hakuna kukwirira, hakuwanzoshandiswa.
2. Capacitor voltage kuderedza:
Iyi mhando yemagetsi e LED inobatwa nyore nyore negridi voltage kuchinja, uye kushanda kwemagetsi kwakadzikira. Hazvina kukodzera kushandisa LED kana ichipenya, nokuti dunhu rinoderedza magetsi kuburikidza ne capacitor. Kana ichishandiswa mukupenya, nekuda kwekuita kwekuchaja uye kuburitsa, iyo pakarepo ichipfuura nepakati pe LED Yakakura kwazvo uye inogona kukuvadza chip nyore.
3. Electronic transformer danho-pasi:
Izvo zvinokanganisa zveiyi magetsi emagetsi chimiro chakaderera chekushandura, nhete voltage renji, kazhinji 180 ~ 240V, uye kupindira kukuru kweripple.
4. Resistor voltage kuderedza:
Kushanda kwesimba kweiyi nzira yekupa magetsi kwakaderera, uye kuvimbika kwehurongwa zvakare kwakaderera. Nemhaka yokuti dunhu rinoderedza magetsi kuburikidza nevanopikisa, rinovhiringidzwa zvikuru nekuchinja kwegrid voltage, saka hazvisi nyore kugadzira magetsi anogadziriswa, uye iyo inoderedza-voltage resistor pachayo inoshandisa chikamu chikuru chesimba.
5. RCC nhanho-pasi switching power supply:
Mabhenefiti erudzi urwu rwemagetsi e LED akareba voltage kudzikamisa siyana uye ine simba rakati wandei simba, iro rinogona kuita 70% kusvika 80%, uye rinoshandiswa zvakanyanya. Izvo zvakanyanya kuipa ndezvekuti iyo frequency yekuchinja inonetsa kudzora, iyo inotakura voltage ripple coefficient yakakura, uye kuchinjika kwemutoro kwakashata pasi pemamiriro asina kujairika.
6. PWM inodzorwa kushandura magetsi ekupa:
Parizvino, magetsi emagetsi eLED akagadzirwa nePWM control akanakira nekuti iyo inobuda voltage kana ikozvino yeiyi switching magetsi yakagadzikana. Iko simba rekushandura simba rakanyanya kukwirira, kazhinji kukwira se80% ~ 90%, uye inobuda voltage uye zvazvino zvakagadzikana zvakanyanya. Iyi nzira yemagetsi emagetsi e LED inonyanya kuve nezvikamu zvina: kugadzirisa kwekuisa uye kusefa chikamu, kuburitsa kugadziridza uye kusefa chikamu, PWM voltage kudzikamisa kudzora chikamu, uye kushandura simba shanduko chikamu. Uyezve, dunhu iri rine matanho ekudzivirira akazara uye ndeyepamusoro-yakavimbika magetsi ekupa.
Sere maitiro ekuita zvinodiwa zvenguva dzose magetsi magetsi
Zvinoenderana nemitemo yekushandiswa kwesimba regidhi remagetsi uye zvinodikanwa zveiyo LED drive magetsi, zvinotevera zvipfumbamwe maitiro ekuita zvinofanirwa kutariswa pakusarudza nekugadzira iyo LED drive magetsi.
1. Kuvimbika kwepamusoro, kunyanya kutyaira kwemagetsi emagetsi emagetsi e LED, ayo akaiswa panzvimbo yakakwirira, zvichiita kuti kugadzirisa kusava nyore uye kunodhura.
2. High-efficiency LEDs zvigadzirwa zvekuchengetedza simba, uye kushanda kwemagetsi ekufambisa magetsi kunofanira kunge kwakakwirira. Izvi zvinonyanya kukosha kune zvivako umo magetsi anoiswa mukati memwenje. Nekuti kupenya kwe LED kunodzikira sezvo tembiricha ye LED inowedzera, kupisa kwekupisa kwe LED kwakakosha. Kubudirira kwesimba rekushandisa kwakakwirira, kushandiswa kwayo kwesimba kuduku, uye kupisa kunogadzirwa mumwenje kuduku, izvo zvinoderedzawo kukwira kwekushisa kwemwenje. Zvinobatsira kunonoka kuora kwechiedza che LED.
3. High power factor Power factor ndiyo inodikanwa yegridi yemutoro. Kazhinji, hapana zviratidzo zvinosungirwa zvemidziyo yemagetsi iri pasi pe70 watts. Kunyange zvazvo simba rakaderera rechinhu chimwe chete chemagetsi chine simba duku richava nemigumisiro shoma pamagetsi emagetsi, kana munhu wose akabatidza mwenje usiku uye rudzi rumwe chete rwemutoro rwakanyanya kuwanda, zvinokonzeresa kusvibiswa kwakakomba kugetsi remagetsi. Kune 30- kusvika 40-watt LED yekutyaira magetsi emagetsi, zvinonzi panogona kunge paine zvimwe zvinodikanwa zvemagetsi zvinhu munguva pfupi iri kutevera.
4. Surge dziviriro ye LED kugona kushingirira masurges ishoma, kunyanya kugona kwayo kushingirira reverse voltage. Kusimbisa kudzivirira munzvimbo iyi kunokosha zvakare. Mamwe marambi e LED anoiswa kunze, akadai semwenje ye LED mumugwagwa. Nekuda kwekushandiswa kwegidhi mutoro uye kuiswa kwekurova kwemheni, kuputika kwakasiyana kunozopinda kubva kune grid system, uye kumwe kuvhiya kunokonzeresa kukuvadza ku LED. Naizvozvo, iyo LED yekutyaira magetsi inofanirwa kuve nekugona kudzvanya kupindira kwekupinda uye kudzivirira iyo LED kubva mukukuvara.
5. Kudzivirirwa basa Kuwedzera kune akajairwa kuchengetedza mabasa emagetsi ekupa, zviri nani kuwedzera LED tembiricha isina kunaka mhinduro kune inogara iripo inobuda kudzivirira tembiricha ye LED kuti isanyanya kukwirira.
6. Panyaya yekudzivirira, kana mwenje wakaiswa kunze, simba rekugadzirisa magetsi rinofanira kunge risina mvura uye hunyoro-uchapupu, uye kunze kwekunze kunofanira kunge kusina chiedza.
7. Hupenyu hwemagetsi ekufambisa hunofanira kufanana nehupenyu hwe LED.
8. Inofanirwa kutevedzera mitemo yekuchengetedza uye electromagnetic kuenderana zvinodiwa.
Sezvo kushandiswa kwe LED kunowedzera uye kupararira, kushanda kwe LED yekutyaira magetsi kunowedzera uye kwakanyatsoenderana nezvinodiwa zve LED.
Pamibvunzo yechigadzirwa, ndapota tarisa iyochigadzirwa peji, unogamuchirwawotaura nesukuburikidza neruzivo rwekusangana pazasi, isu tichakupindura iwe mukati me24.
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