Nws yog qhov nyuaj rau kev tsim lub tshuab hluav taws xob hloov txuas rau hauv tsev. Ib qho kev daws teeb meem uas zoo tshaj plaws yog kev sib txuas ntawm cov pa hluav taws xob uas tsis tshua muaj siab nrog cov hloov hluav taws xob.
Cov Lus Qhia
Kauj ruam 1
Xaiv cov kev hloov pauv theem qis (nws yuav tsum yog qhov zoo tib yam, tsim rau zaus ntawm 50 Hz) thiaj li hais tias qhov hluav taws xob ntawm nws qhov kev sib hloov theem ob yog tsis tsawg tshaj li qhov tau txiav txim los ntawm cov mis hauv qab no: Uvt = (Uout + 2) / sqrt (2), qhov twg Uvt yog qhov ntsuas hluav taws xob ntawm qhov txuas ntawm lub tshuab txuas ntxiv (V), Uout - qhov hluav taws xob uas xav tau ntawm qhov tawm ntawm lub zog (3, 3 lossis 5 V). Hauv qhov xwm txheej no, tus nqi ntawm Uw * sqrt (2) yuav tsum tsis pub tshaj 30 V. Qhov siab tshaj plaws thauj khoom tam sim no ntawm qhov hloov pauv yuav tsum yog tsawg kawg ib thiab ib nrab zaus tshaj qhov tam sim no siv los ntawm lub hwj huam. Nco ntsoov, txawm li cas los xij, hais tias qhov tsim tau PSU tsim tso cai rau thauj khoom ntau tshaj plaws ntawm 1 A.
Kauj ruam 2
Suav qhov kev ntaus nqi ntawm cov fuse txuas nrog hauv kev sib txuas nrog thawj cua ntawm qhov hloov pauv siv cov qauv hauv qab no: Ipr = P / 220, qhov twg Ipr yog qhov ntsuas tam sim no ntawm fuse (A), P yog lub zog hluav taws xob (W))). Hauv qhov no: P = UI, qhov twg U yog qhov load load voltage (V), Kuv yog tam sim no noj los ntawm lub ntsaws (A).
Kauj ruam 3
Txuas mus rau theem ob winding los ntawm qhov txuas tus choj uas muaj peev xwm nrog lub zog tam sim no, qhov ntsuas hluav taws xob nrog qhov muaj zog txog 2000 μF, tsim rau qhov ntsuas hluav taws xob tsawg kawg: Ufin> Uw * sqrt (2), qhov twg Ufin yog qhov ntsuas kom tau ntawm lub capacitor (V), Uvt yog qhov ntsuas hluav taws xob ntawm theem kev sib tsoo (B). Soj ntsuam qhov polarity thaum txuas lub capacitor mus rau ntawm tus choj.
Kauj ruam 4
Nyob ntawm seb dab tsi cov zis hluav taws xob ntawm lub zog hluav taws xob yuav tsum yog (3, 3 lossis 5 V), siv cov ntsuas hluav taws xob hloov ntawm hom DE-SW033 lossis DE-SW050, feem. Txuas nws tib txoj kev uas ib txwm muaj li 78xx series ntawm tus kws tsav tsheb, tab sis yam tsis muaj qhov thaiv cov khoom siv hluav taws xob, vim tias cov capacitors twb nyob sab hauv lawm. Txuas lub xov tooj zoo ntawm qhov txuas tus pas hlau txuas mus rau lub davhlau ya nyob twg ntawm 1 ntawm qhov module, tsis zoo rau lub davhlau ya nyob twg 2. Tshem tawm cov ncej zoo ntawm lub ntsuas hluav taws xob los ntawm lub davhlau ya nyob twg 3 ntawm qhov module, tsis zoo - los ntawm cov davhlau ya nyob twg. mem tes stabilisation, hla dhau qhov tso tawm, soj ntsuam qhov polarity, nrog lub ntsuas hluav taws xob nrog lub peev xwm ntawm 470 μF, tsim rau qhov voltage ntawm tsawg 6.3 V.
Kauj ruam 5
Tsis txhob nruab cov heatsink ntawm tus qauv raws li lub zog tsim los ntawm nws yog tus nqi tsawg. Lub xov tooj cua tsis ua haujlwm nyob ntawm ntau zaus tsawg dua 30 MHz los ntawm chav tsev no.
