Ukutshintsha kuthelekiswa neeMbonelelo zaMandla oMda: Yeyiphi omawuyikhethe?

Xa kuziwa ekukhetheni unikezelo lwamandla, sihlala sizifumana sikrazukile phakathi kweSibonelelo soMbane woTshintsho kunye neSibonelelo soMbane oMbane. Zombini iintlobo zonikezelo lwamandla zineengenelo zazo, ezizenza zilungele izicelo ezahlukeneyo. Ukuqonda umahluko phakathi kwabo kuya kukunceda wenze isigqibo esinolwazi ngakumbi xa uyila inkqubo yakho yamandla.

Yintoni uBonelelo lwaMandla oTshintsho?
UBonelelo loMbane oTshintshwayo luhlobo lonikezelo lwamandla olulawula amandla ombane aphumayo kunye nowangoku ngokutshintsha ngokukhawuleza iinxalenye ze-elektroniki (ezifana neetransistors) zivule okanye zivale. Isebenza ngokuguqula i-voltage yegalelo kwi-voltage efunekayo ephumayo kusetyenziswa amacandelo emowudi yokutshintsha-frequency ephezulu (enje nge boost, buck, okanye buck-boost converters). Ukutshintsha iMibonelelo yoMbane kusebenza kakhulu kuba iguqula amandla ngelahleko encinci, ibenza balungele izixhobo ezifuna uyilo oludibeneyo kunye nombane ohlengahlengiswayo.

Xa kuthelekiswa neeMbonelelo zoMbane oMda wesiNtu, ukuTshintsho lwaMandla oMbane lusebenza ngamandla ngakumbi, ngokuqhelekileyo lufikelela amanqanaba asebenzayo angaphezulu kwe-80%, ngelixa i-Linear Power Supplies ingasebenzi kakuhle kwaye ivelisa ubushushu obuninzi.

Yintoni iLinear Power Supply?
I-Linear Power Supply lunikezelo lwamandla lwemveli olulawula i-voltage ephumayo ngokuhlengahlengisa okwangoku. Isebenza ngokulungelelanisa ngokuthe ngqo i-voltage yegalelo kunye nokulawula ukuhamba kwangoku ngokusebenzisa izinto ezichasayo okanye imithombo yangoku ukuzinzisa umbane wokuphuma. Inzuzo ephambili ye-Linear Power Supplies kukukwazi kwabo ukubonelela ngemveliso ezinzileyo kunye nengxolo encinci, ibenze bafanelekele izicelo ezifuna umbane ococekileyo kunye nozinzile.

Nangona kunjalo, i-Linear Power Supplies ithanda ukungasebenzi kakuhle kuba amandla angaphezulu achithwa njengobushushu. Umzekelo, xa uhla amandla ombane ukusuka kwi-12V ukuya kwi-5V, amandla angaphezulu aguqulwa abe bubushushu kunokuba asetyenziswe ngokufanelekileyo.

Iiyantlukwano eziphambili phakathi koTshintsho kunye neMithetho yoMbane yoMbane
Ukusebenza kakuhle

Ukutshintsha uBonelelo boMbane lusebenza ngakumbi kuneLinear Power Supplies. Basebenzisa iindlela zokutshintshela i-high-frequency switching ukuguqula amandla ngokufanelekileyo kunye nelahleko encinci yobushushu, ngokuqhelekileyo ukufikelela kumanqanaba asebenzayo angama-80% okanye ngaphezulu. Ngokwahlukileyo, i-Linear Power Supplies iguqula i-voltage engaphezulu ibe bubushushu, ikhokelela ekusebenzeni okuphantsi, rhoqo ngaphantsi kwe-50%.

Ubukhulu kunye nobunzima

Ukutshintsha uBonelelo boMbane ngokuqhelekileyo buncinci kwaye bukhaphukhaphu kunoLuhlu lwaMandla oMbane kuba lusebenza kumaza aphezulu kwaye lufuna ukuchithwa kobushushu okuncinci. Abadingi heatsinks ezinkulu okanye izinto ezinkulu ukulawula ubushushu. Kwelinye icala, ii-Linear Power Supplies zinkulu kwaye zifuna iiheatsink ezinkulu ukuphatha ubushushu obuveliswa kukusebenza kwazo okuphantsi.

Ingxolo ephumayo kunye noZinzo

Ubonelelo lwaMandla oMbane luyagqwesa ekuboneleleni ngombane ozinzileyo kunye nongenangxolo. Ngenxa yoyilo lwazo olulula, zifanelekile kwizicelo ezifuna ingxolo ephantsi kakhulu kunye nombane ozinzile, njengezixhobo zomsindo kunye nezixhobo ezichanekileyo.

Ukutshintsha iMibonelelo yoMbane, nangona kunjalo, kunokuvelisa ukuphazamiseka kwe-electromagnetic (EMI) kunye nengxolo ngenxa yokusebenza kwabo okuphezulu kwe-frequency switching. Nangona ii-Switch Power Supplies zangoku zisebenzisa iindlela zokucoca kunye nokukhusela ukunciphisa le miba, zisenokungakulungeli usetyenziso olufuna ingxolo ephantsi kakhulu.

ixabiso

Unikezelo lwaMandla oMda luthande ukuba neendleko zokuqala eziphantsi ngenxa yoyilo lwazo olulula. Nangona kunjalo, ukusebenza kwabo okuphantsi kunye nobukhulu obukhulu kuthetha ukuba banokungena kwiindleko eziphezulu zexesha elide malunga nokusetyenziswa kwamandla kunye nokulawula ubushushu.

Ukutshintsha Ubonelelo lwaMandla ngokuqhelekileyo lunotyalo-mali oluphezulu ngenxa yoyilo lwazo oluntsonkothileyo kunye neenkqubo zokuvelisa. Nangona kunjalo, ukusebenza kwabo okuphezulu kunye nokusetyenziswa kwamandla aphantsi kunokukhokelela ekunciphiseni iindleko ezipheleleyo kwixesha elide, ngakumbi kumandla aphezulu kunye nezicelo eziqhubekayo zokusetyenziswa.

izicelo

Ukutshintsha Ukunikezelwa koMbane kulungele ukusebenza kakuhle, ukusetyenziswa kwamandla aphantsi afuna iziphumo zombane ezilungelelanisiweyo, ezifana nezixhobo zombane kwiikhompyuter, ukukhanya kwe-LED, iitshaja zebhetri, kunye nezixhobo zamandla. Zifaneleke kakuhle izixhobo eziphezulu zamandla kunye nezicelo apho ubungakanani be-compact bubalulekile.

Ubonelelo lwaMandla oMbane lufaneleke ngakumbi kwizicelo ezifuna amandla ombane azinzile kakhulu kwaye angenangxolo, njengezandisi zomsindo, izixhobo ezichanekileyo, kunye nezixhobo zonyango. Zifanelekile kwiimeko apho umgangatho wombane ubaluleke kakhulu.

Ukukhetha phakathi kweSibonelelo soMbane woTshintsho kunye neSibonelelo soMbane soMbane kuxhomekeke kwiimfuno zakho zesicelo. Ukuba udinga amandla aphezulu, i-compact, kunye ne-flexible power supply, i-Switching Power Supply iyona nto ikhethekileyo, ngakumbi kumandla aphezulu kunye nezicelo ze-voltage.

Nangona kunjalo, ukuba ufuna unikezelo lwamandla olubonelela ngengxolo ephantsi kakhulu kunye namandla ombane azinzile kakhulu, iLinear Power Supply inokuba lolona khetho lungcono, ngakumbi usetyenziso olukwizixhobo ezibuthathaka njengeenkqubo zomsindo kunye nesixhobo esichanekileyo. Ngelixa uTshintsho lwaMandla obonelelo luneenzuzo kwiimeko ezininzi, iLinear Power Supplies isadlala indima ebalulekileyo kwizicelo ezithile ezikhethekileyo.

Ukuqonda umahluko phakathi kwezi ntlobo zimbini zobonelelo lwamandla kunye nokukhetha echanekileyo ngokusekwe kwiimfuno zakho kuya kuqinisekisa ukuba izixhobo zakho zifumana inkxaso yombane eyona ilungileyo.