Kwicandelo loyilo lwesekethe, ukukhetha izixhobo ezifanelekileyo zombane sisitshixo sokuqinisekisa ukusebenza ngokukuko kwale nkqubo yesekethe.Ngokwesiqhelo, abackityo ikakhulu beqwalasele iindidi ezimbini zezixhobo zamandla kwiyilo yesekethe: i-DC / DC kunye ne-ldo.Ezi zixhobo zimbini zineempawu zazo kunye neemeko zesicelo, kunye nokuqonda intsebenzo yazo kunye neemeko ezifanelekileyo zibalulekile ekuyileni kwesekethe.
Okokuqala, makhe siqwalasele i-ldom, umlawuli ophantsi we-ropout, okanye isixhobo se-Dropout.I-ldo ihlala isetyenziswa kwiimeko ezifuna ukuncitshiswa kwe-voltage.Izibonelelo zayo eziphambili zibandakanya iindleko eziphantsi, ingxolo ephantsi kunye ne-quiscent encinci yangoku.Ukusebenza okuphezulu kwe-LDO ikakhulu kubangelwa yi-P-channel ye-mosfet esetyenziswe ngaphakathi kuyo.Ukusukela i-P-rinnel mosfET yi-voltage eqhutywa, ayifuni okwangoku, ke inokunciphisa kakhulu ukusetyenziswa kwangoku kwesi sixhobo ngokwakho.Ukongeza, i-voltage yehla kwe-P-channel ye-P-mosfET iphantsi ngenxa yokungavisisani kwayo, esenza ukuba i-voltage ilahle kakhulu.I-LDO ifuna ukuba zimbalwa kakhulu izinto zangaphandle, ngokubanzi kuphela amandla okanye amabini anengxaki ye-bippass ayadingeka, enika i-LDON izibonelelo ezibalulekileyo kwi-Minindirization kunye nolawulo lweendleko.
Okulandelayo, siphonononge ii-DC / DC abaguquli baguqukayo.Inkcazo ye-DC / DC Converter yinguquko yexabiso lamandla e-DC, ebandakanya ukonyusa, i-buck, i-vest iseketheni.Xa kuthelekiswa ne-LDS, ezona zibonelelo zibalulekileyo ze-DC / DC zisebenza kakuhle, ukukwazi ukuthuthuzela imiphumo emikhulu kunye ne-quiscent encinci
.Ngokuphuculwa kwetekhnoloji yokudibanisa, i-DC / DC yabaguquli be-DC / i-DC kuphela ifuna kuphela inani elincinci labasebenzi bangaphandle kunye nezakhono zokucoca asebenze.Nangona kunjalo, ezona zinto zibalulekileyo kolu hlobo lomlawuli wamandla ziindlela ezinkulu ezikhutshelwe kwaye zitshintshe ingxolo, kwaye ziyindleko eziphezulu.
Ngexesha lokukhetha isixhobo sombane, abaqulunqileyo kufuneka benze izigqibo ngokusekwe kubudlelwane phakathi kwe-inftage yegalelo kunye nevoti, iindleko, ingxolo kunye nezinye izikhombisi zomsebenzi.Umzekelo, ukuba i-infting voltage yahluke kakhulu kwi-Voltage yemveliso, i-LDO uMlawuli idla ngokuba lukhetho olungcono ngenxa yokuba inganikezeli kuphela ukusebenza okuphezulu kodwa kukwenzelwa ulawulo lweendleko.I-LDO ifaneleke ngakumbi kwezi meko zilandelayo: Iimveliso ezifuna ingxolo enkulu yokuhambisa amandla kunye nengcinezelo evuthayo, izixhobo ezingenazithuthi, iimveliso ezingavumeli ukusetyenziswa kwezinto eziphathwayo, impahla yamandla efuna ukuba kubekho ngephanyanoUkulinganisa kunye nenqanaba lendlela yokuzivavanya, izixhobo zokugcina iidilda ezinamafutha aphantsi kunye nokusebenzisa amandla asezantsi, kunye nezicelo ezifuna iindleko zesekethe eziphantsi kunye nezisombululo ezilula.
Ngokuchasene noko, ukuba umahluko phakathi kwe-infrage yegalelo kunye nevoli yemveliso inkulu okanye i-voltage inkulu, i-DC ye-DC / DC ifanelekile ngakumbi.Kuba igalelo langoku le-ldo liphantse lilingane nemveliso yangoku, ukuba ihlazo le-voltage likhulu kakhulu, amandla angaphezulu aya kulahleka kwi-LDON, ngaloo ndlela kuncitshiswa ukusebenza kakuhle.Kule meko, i-DC / DC Consest iba luhlobo olungcono ngenxa yokusebenza okuphezulu kunye nokukhutshwa okukhulu okukhulu, nangona kunokuzaphazamisa okukhulu, nokuba inkulu, kwaye ixabisa kancinane.
Ukuphelisa, xa ukhetha isixhobo sokukhulisa kwiyilo yesekethe, i-DC / DC Converter kuphela kokhetho.Xa ujonga izixhobo ze-buck, abaqulunqileyo kufuneka enze uhlalutyo olubanzi ngokweendleko, ukusebenza ngokukuko, ingxolo, kunye nentsebenzo yokukhetha ukuba ukhetha ukuba ingaba ukhetha ukuba ingaba ukhetha ukuba ingaba ukhetha ukuba ingaba ukhetha ukuba ingaba ukhetha ukuba ingaba ukhetha ukuba ingaba ukhetha ukuba ingaba ukhetha ukuba ingaba ukhetha ukuba ingaba ukhetha ukuba ingaba ukhetha ukuba ingaba ukhetha ukuba ingaba ukhetha ukuba ingaba ukhetha ukuba ingaba ukhetha ukuba ingaba ukhetha ukuba ingaba ukhetha ukuba ingaba ukhetha ukuba ingaba ukhetha ukuba ingaba ukhetha ukuba ingaba ukhetha ukuba ingaba ukhetha i-DC / DC okanye ldom.Isixhobo ngasinye sinezibonelelo zaso ezikhethekileyo kunye nokusikelwa, abaqulunqileyo kufuneka bathathele ingqalelo iimfuno zesekethe kunye neemeko zesicelo xa bethatha isigqibo sokuba yeyiphi eyona nto ilunge ngakumbi kwisicelo esithile.