Txhawm rau daws cov teeb meem ntawm cov sib nqus sib txuas thiab cov davhlau ya nyob twg ntawm cov kab ke sib xyaw ntau yam txuas nrog, cov cuab yeej siv sib nqus yog siv hauv cov ntsiab lus no. Cov lus saum toj ntawm ntau qhov sib nqus tam sim no rectifiers piv. Thaum kawg, cov qauv sim thiab cov kev hloov pauv ntawm 1V thiab 20W dc / dc hloov pauv tau muab.
Hauv qhov DC / DC hloov pauv, vim nws tus yam ntxwv, qhov tam sim no qhov khoom siv hluav taws xob dual rectifier tau dhau los ua qhov zoo tshaj plaws ntawm qhov ua kom rov ua tiav. Piv nrog cov tsoos nruab nrab kem rectifier topology, nws qhov hloov pauv sab tsuas muaj ib txheej ntawm windings thiab tus qauv yooj yim. Nyob rau tib lub sijhawm, tus xov tooj ntawm lem ntawm CDR sab winding kuj tseem tsawg dua. Nyob rau hauv rooj plaub ntawm qhov siab tam sim no, qhov poob ntawm qhov kev hloov qis thib ob yog txo. Cov zis muaj ob lub lim inductors, thiab tsuas yog ib nrab ntawm cov load tam sim no dhau ntawm txhua qhov inductor tam sim no, yog li ntawd cov zis lim inductor muaj lub zog me me poob, vim tias muaj ob lub lim inductors thiab cov zis tam sim no / voltage hloov pauv ntawm lub converter yog me me. Cov. Tab sis nws yuav tsum muaj peb lub ntsiab sib nqus, uas inevitably ua rau qhov nce hauv ntim, yog li txo lub zog ceev. Nyob rau tib lub sijhawm, muaj ntau cov xaim txuas hluav taws xob. Thaum tam sim no loj, lub hwj huam poob ntawm cov terminals yuav tsum loj. Txhawm rau kov yeej cov kev shortcomings no, siv tshuab sib nqus tau siv nyob rau hauv CDR topology. Cov sib koom ua ke sib nqus yog lub hloov pauv hauv uas ob lossis ntau qhov kev sib cais sib nqus (hloov pauv, tawm / tso tawm lim inductors) yog nyob rau hauv cov khoom siv sib nqus kom txo tau qhov ntim thiab nce lub zog ceev thiab txo cov terminals.
Cov tshooj lus no tshuaj xyuas thiab piv rau sab saum toj qauv ntawm cov rectifier ntau-tam sim no, thiab xaiv qhov kev kawm zoo dua. Raws li CDR cov ntsiab lus, cov hloov pauv nrog 1V thiab 20W cov khoom tso tawm raug kuaj, thiab cov qauv sim ntsuas tau muab. Tshwj xeeb tshaj yog thaum lub nra yog loj, lub zog khaws cia rau hauv cov xaim hluav taws xob tiv thaiv nyob rau sab tseem ceeb ntawm qhov hloov pauv tuaj yeem siv kom paub cov synchronous rectification ntawm tus tsav tsheb thiab txo qhov tsis yooj yim ntawm kev tswj kav.
Lub sijhawm-tam sim no synchronous rectification topology tau dav siv hauv cov hloov siab tam sim no, tab sis muaj cov tsis xws luag loj hauv cov qauv ntawm cov khoom siv sib nqus ib txwm muaj. Txhawm rau kov yeej cov kev shortcomings no, siv tshuab sib nqus tau siv nyob rau hauv no topology. Nws tau thov.
