Ukuze kufezekiswe ukusebenza ngokugqibeleleyo kombane we-benchtop, kubalulekile ukuqonda imigaqo yawo esisiseko. Umbane we-benchtop uguqula amandla okufaka i-AC ukusuka kwindawo yokukhupha eludongeni abe ngamandla e-DC asetyenziselwa ukunika amandla izinto ezahlukeneyo ngaphakathi kwikhompyutha. Ngokwesiqhelo isebenza kwi-AC input yesigaba esinye kwaye ibonelela ngee-voltages ezininzi ze-DC output, ezifana ne-+12V, -12V, +5V, kunye ne-+3.3V.
Ukuguqula amandla okufaka i-AC abe ngamandla e-DC, umbane osebenza kwi-benchtop usebenzisa i-transformer ukuguqula amandla okufaka i-AC anamandla aphezulu kunye namandla aphantsi okufaka i-AC abe yi-voltage ephantsi kunye ne-AC signal ephezulu. Le signal ye-AC emva koko ilungiswa kusetyenziswa ii-diode, eziguqula isignali ye-AC ibe yi-voltage ye-DC ebetha ngamandla.
Ukuze i-voltage ye-DC ebethayo ithambe, umbane wedesktop usebenzisa ii-capacitors ezigcina itshaja engaphezulu kwaye ziyikhulule ngexesha le-voltage ephantsi, nto leyo ebangela i-voltage ye-DC output eqinileyo. I-voltage yeDC emva koko ilawulwa kusetyenziswa isekethe yokulawula i-voltage ukuqinisekisa ukuba ihlala ngaphakathi kokunyamezelana okuqinileyo, okuthintela umonakalo kwizakhi. Ukhuseleko olwahlukeneyo, olufana nokhuseleko lwe-overvoltage, ukhuseleko lwe-overcurrent, kunye nokhuseleko lwe-short circuit, nalo lwakhiwe kwizixhobo zamandla zedesktop ukuthintela umonakalo kwizakhi xa kukho iimpazamo.
Ukuqonda imigaqo esisiseko yombane wedesktop kunokunceda ekukhetheni umbane ofanelekileyo kwinkqubo yekhompyutha nokuqinisekisa ukusebenza kakuhle.
Kweli nqaku, siza kuthetha ngezinto ezisisiseko malunga nokuba yintoni umbane osetyenziswa kwi-benchtop, indlela yokuwusebenzisa ngokufanelekileyo, kunye nento ekufuneka uyijonge xa ukhetha imodeli.
Yintoni iBenchtop Power Supply?
Xa usebenza kwiprojekthi efuna ubungakanani obuchanekileyo bamandla e-DC, umbane okwi-benchtop unokuba luncedo. Ngokuyintloko umbane omncinci owenzelwe ukuhlala kwi-workbench yakho.
Ezi zixhobo zikwaziwa ngokuba zizixhobo zombane zelebhu, izixhobo zombane zeDC, kunye nezixhobo zombane ezinokucwangciswa. Zilungele izixhobo ze-elektroniki kwabo bafuna ukufikelela kumthombo wamandla othembekileyo nolula ukuwusebenzisa.
Nangona kukho iintlobo ezahlukeneyo zezixhobo zombane ezifumanekayo-kuquka ezo zinemisebenzi yonxibelelwano, iintlobo zemveliso emininzi, kunye nezo zineempawu ezahlukeneyo-zonke zenzelwe ukwenza imisebenzi yakho ibe lula kwaye ichaneke ngakumbi.
Ingaba isebenza kanjani?
Umbane osebenza phezu kwebhedi sisixhobo esiguquguqukayo esibonelela ngamandla alawulwayo kwizixhobo ze-elektroniki. Sisebenza ngokutsala umgca wombane we-AC ukusuka kwi-mains size siwuhluze ukuze unike amandla e-DC angaguqukiyo. Le nkqubo ibandakanya izinto ezininzi, kuquka i-transformer, i-rectifier, i-capacitor, kunye ne-voltage regulator.
Umzekelo, kumbane ohamba ngomgca, i-transformer yehlisa i-voltage iye kwinqanaba elilawulekayo, i-rectifier iguqula i-AC current ibe yi-DC, i-capacitor ihluza nayiphi na ingxolo eseleyo, kwaye i-voltage regulator iqinisekisa ukuphuma kwe-DC okuzinzileyo. Ngokukwazi ukulungisa i-voltage kunye namanqanaba angoku kunye nokukhusela izixhobo kumandla angaphezu kwamandla, umbane we-benchtop sisixhobo esibalulekileyo kwiinkqubo zokuhlola ngokuzenzekelayo, uncedo loqeqesho lwesikolo, njl.
Kutheni kubalulekile?
Umbane osebenza phezu kwebhedi usenokungabi sesona sixhobo sibalaseleyo kwilebhu yenjineli yombane, kodwa ukubaluleka kwawo akunakugxininiswa kakhulu. Ngaphandle kwawo, uvavanyo kunye nomzekelo akunakwenzeka kwasekuqaleni.
Izixhobo zombane zeBenchtop zibonelela ngomthombo we-voltage othembekileyo nozinzileyo wokuvavanya nokunika amandla iisekethe ze-elektroniki. Zivumela iinjineli ukuba zitshintshe i-voltage kunye ne-current kwiinxalenye ukuze zivavanye imida yazo, zijonge indlela ezisebenza ngayo kwizicelo ezahlukeneyo, kwaye ziqinisekise ukuba ziya kusebenza ngokuchanekileyo kwimveliso yokugqibela.
Ukutyala imali kumbane osemgangathweni kusenokungabonakali ngathi yeyona nto ithengiswa kakhulu. Sekunjalo, kunokwenza impembelelo enkulu kwimpumelelo kunye nokusebenza kakuhle koyilo kunye nophuhliso lwe-elektroniki.
Ixesha lokuthumela: Juni-08-2023
