M'chilimwe, mabingu amkuntho amapezeka kawirikawiri, mphezi zimatuluka ndi ma electrostatic discharges omwe nthawi zambiri amatumiza ma volts mamiliyoni ambiri kuchokera kumtambo kupita pansi kapena kumtambo wina. Pamene ikuyenda, mphezi imapanga munda wamagetsi mumlengalenga womwe umapanga ma volts zikwizikwi (omwe amadziwika kuti ma surges) pamizere yamagetsi ndi mphamvu yoyambitsidwa ndi magetsi mtunda wa makilomita mazana ambiri. Kuukira kosalunjika kumeneku nthawi zambiri kumachitika kunja pamizere yamagetsi yowonekera, monga nyali za mumsewu. Zipangizo monga magetsi apamsewu ndi malo oyambira zimatumiza mafunde. Gawo loteteza ma surge limayang'anizana mwachindunji ndi kusokonezedwa ndi ma surge kuchokera ku mzere wamagetsi kumapeto kwa dera. Limatumiza kapena kuyamwa mphamvu ya ma surge kuti lichepetse chiopsezo cha ma surge ku ma circuits ena ogwirira ntchito, monga ma unit amagetsi a AC/DC muzipangizo zowunikira za LED.
Pa magetsi a mumsewu a LED, mphezi imapanga kugwedezeka kwamphamvu pa chingwe chamagetsi. Kugwedezeka kwa mphamvu kumeneku kumapanga kugwedezeka kwamphamvu pa waya, kutanthauza kugwedezeka kwamphamvu. Kugwedezeka kwamphamvu kumeneku kumafalikira ndi kulowetsedwa kumeneku. Dziko lapansi likukula. Mafundewo apanga nsonga pa mafunde a sine motsatira chingwe cholumikizira magetsi cha 220 v. Nsongayo ikalowa mu nyali ya mumsewu, idzawononga dera la nyali ya mumsewu ya LED.
Chifukwa chake, chitetezo cha mphezi cha nyali za LED mumsewu chidzathandiza moyo wawo wautumiki, womwe ukufunika pakadali pano.
Choncho izi zimafuna kuti tichite bwino ntchito yoteteza magetsi a LED pamsewu, apo ayi izi zingakhudze momwe amagwiritsidwira ntchito mwachizolowezi, zomwe zimabweretsa chisokonezo cha magalimoto. Ndiye tingatani kuti titeteze magetsi a LED pamsewu?
1. Ikani ndodo yochepetsera mphamvu yamagetsi pa nsanamira ya nyali ya LED
Kulumikizana kodalirika kwamagetsi ndi makina kuyenera kupangidwa pakati pa pamwamba pa chithandizo ndi pansi pa ndodo yochepetsera mphamvu yamagetsi. Kenako, chithandizocho chikhoza kukhazikika pansi kapena kulumikizidwa ku netiweki ya nthaka ya chithandizocho ndi chitsulo chosalala. Kukana kwa nthaka kuyenera kukhala kochepera 4 ohms.
2. Choteteza mphamvu zamagetsi chimagwiritsidwa ntchito ngati chitetezo cha magetsi poyendetsa nyali ya LED yowunikira magalimoto ndi magwero a makina ndi magetsi owongolera zizindikiro
Tiyenera kusamala kuti waya woteteza ku mafunde osalowa madzi, osanyowa, osapsa fumbi komanso waya wamkuwa wa chotetezera kupitirira mphamvu umalumikizidwa ndi kiyi yokhazikitsira pansi ya chitseko motsatana, ndipo kukana kwa pansi kumakhala kochepa kuposa mtengo wotsimikizika wotsutsa.
3. Chitetezo cha pansi
Pa malo olumikizirana omwe ali ndi mzati ndi kutsogolo, kugawa kwa zida zake kumakhala kosiyanasiyana, kotero tikufuna kukwaniritsa mfundo imodzi yokhazikika kudzakhala kovuta. Chifukwa chake, kuti magetsi a LED agwire ntchito yokhazikika komanso yoteteza munthu payekha, mzati uliwonse pansi pake umagwiritsa ntchito thupi lokhazikika lolumikizidwa mu kapangidwe ka netiweki, ndiko kuti, njira yokhazikika ya mfundo zambiri kuti mafunde obwera atuluke pang'onopang'ono komanso zofunikira zina zoteteza mphezi.
Nthawi yotumizira: Marichi-04-2022
