Kev hloov pauv tam sim no (AC) yog txoj hauv kev zoo los ua hluav taws xob. Txawm li cas los xij, feem ntau cov khoom siv hluav taws xob xav tau hluav taws xob ncaj qha (DC) los ua haujlwm. Yog li, AC rau DC hloov pauv twb yog ib feem ntawm cov cuab yeej nws tus kheej lossis ib feem ntawm lub hwj huam qaum. Yog tias koj tab tom ua cov cuab yeej uas koj xav tau lub zog los ntawm ntsaws nws rau hauv qhov hluav taws xob AC, koj yuav tsum tau ntxiv AC rau DC hloov pauv.
Kauj ruam
Kauj Ruam 1. Txheeb xyuas seb AC input voltage yog dab tsi
Hauv North America thiab ib feem ntawm Central thiab South America, AC qhov hluav taws xob hauv qhov hluav taws xob feem ntau yog 110 txog 120 volts nrog zaus ntawm 60 hertz. Hauv Europe, Asia, Australia, thiab feem ntau ntawm Middle East thiab Africa, qhov hluav taws xob yog 230 txog 240 volts nrog zaus ntawm 50 hertz. Tus qauv ntsuas hluav taws xob hauv lwm qhov chaw yuav txawv.
Kauj Ruam 2. Nrhiav qhov ntsuas hluav taws xob thiab qhov amperage qhov xav tau los txhawb lub zog ntawm cov khoom siv hluav taws xob
Yog tias tsim nyog, txheeb xyuas phau ntawv tsim khoom. Amperage thiab qhov ntsuas hluav taws xob uas loj dhau yuav ua rau cov khoom puas tsuaj, thaum qhov tseem ceeb me me yuav ua rau cov cuab yeej siv tsis ua haujlwm zoo. Cov khoom siv feem ntau muaj kev nyab xeeb ntau yam; xaiv tus nqi nruab nrab kom koj lub zog tawm tswv yim tuaj yeem sib txawv me ntsis.
Kauj Ruam 3. Siv lub tshuab hloov pauv kom nqis qis los ntawm qhov hluav taws xob siab AC mus rau qhov hluav taws xob qis AC
Ib qho hluav taws xob tam sim no nkag mus rau lub kauj tseem ceeb ntawm tus hloov pauv thiab ua kom muaj qhov tam sim no nyob rau hauv lub kauj thib ob, uas muaj tsawg dua tig, ua rau qis dua qhov hluav taws xob. Lub zog me me yuav ploj hauv cov txheej txheem no vim tias tus nqi amperage nce ntxiv thaum qhov hluav taws xob poob qis.
Kauj Ruam 4. Txuas AC qhov hluav taws xob qis los ntawm lub rectifier
Tam sim no lub khoos phis tawj feem ntau suav nrog 4 diodes tau teeb tsa hauv lub pob zeb zoo nkauj - hu ua choj tam sim no rectifier. Lub diode tsuas tso cai rau tam sim no ntws hauv ib qho kev taw qhia; Kev teeb tsa pob zeb diamond tso cai rau 2 diodes nqa ib nrab qhov zoo tam sim no thiab lwm 2 diodes nqa ib nrab qhov tsis zoo tam sim no. Cov zis ntawm ob lub voj voog yog qhov tam sim no uas nce los ntawm 0 volts mus rau qhov zoo tshaj qhov hluav taws xob.
Kauj Ruam 5. Ntxiv lub tshuab electrolytic loj los ua kom qhov hluav taws xob du
Capacitors khaws hluav taws xob them ib ntus ces ntws nws maj mam. Cov tswv yim ntawm lub rectifier tam sim no zoo ib yam ntawm cov nthwv dej; cov zis ntawm "rectifier capacitor" yog qhov ruaj khov dua nrog ripples.
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Txog cov cuab yeej uas xav tau tsuas yog qhov tsawg tam sim no, koj tuaj yeem tsim tus tswj hwm nrog tus tiv thaiv thiab zener diode, uas tau tsim los txhawm rau txhawm rau thaum nws mus txog qee qhov hluav taws xob, tso cai rau tam sim no ntws los ntawm nws. Resistor ua haujlwm los txwv qhov tam sim no.
Hloov AC rau DC Step 5 Bullet1
Kauj Ruam 6. Txuas cov zis ntawm lub rectifier los ntawm tus tswj hwm
Qhov no yuav ua rau cov ripples muag muag thiab tsim kom muaj kev ruaj khov tam sim no uas yuav ua rau cov khoom siv hluav taws xob tsis ua rau nws puas tsuaj. Cov tswj hwm tau sib xyaw ua ke thiab muaj qhov hloov pauv lossis hloov pauv qhov hluav taws xob.
Txawm hais tias tus tswj hwm suav nrog kev tiv thaiv overcurrent thiab overheat, koj yuav xav tau ntxiv lub tshuab txias kom nws tsis txhob kub ntau
Lub tswv yim
- Hloov pauv tam sim no ob qho tib si zoo thiab tsis zoo voltages nce thiab nqis ib yam li nyob rau hauv sine yoj du. Cov nthwv dej no tuaj yeem xa hluav taws xob sai dua thiab deb dua yam tsis poob lub zog.
- Yog tias koj tsis xav ua koj tus kheej AC rau DC hloov pauv, koj tuaj yeem yuav ib qho.
