Lub Rectifier Ua li cas? Saib ncaj nraim
Yog li, cia peb tham txog qee yam tseem ceeb hauv kev siv hluav taws xob: dab tsi yog lub rectifier ua? Yeej, lub rectifier yog ib qho khoom siv uas hloov pauv tam sim no (AC) mus rau tam sim no ncaj qha (DC). Koj puas paub yuav ua li cas AC fais fab tig rov qab, ua rau nws zoo rau xa hluav taws xob mus ntev? Zoo, feem ntau cov khoom siv thiab cov khoom siv hluav taws xob xav tau ruaj khov, ib qho - txoj kev DC lub zog kom khiav tau zoo. Qhov ntawd yog qhov uas lub rectifier tuaj rau hauv.
Nws ua haujlwm feem ntau nrog diodes, uas ua haujlwm zoo li ib qho - txoj kev li qub rau hluav taws xob. Thaum lub sij hawm qhov zoo ntawm AC nthwv dej, tam sim no ntws los ntawm. Thaum nws flips tsis zoo, lub diode thaiv nws. Qhov tshwm sim? Koj tau txais lub zog DC hloov pauv tag nrho AC. Ua kom nws txawm smoother, tib neeg feem ntau ntxiv capacitors lossis lwm cov lim dej los ntxuav cov ripples.
Yuav ua li cas Rectifiers ua hauj lwm nrog Transformers
Transformers yog qhov zoo heev ntawm kev hloov pauv voltage - nce lub zog nce lossis nqis. Tab sis lawv ib txwm tso tawm AC. Yog li, yog tias koj xav tau DC thaum kawg, koj yuav tsum nqa lub rectifier tam sim ntawd tom qab lub transformer thib ob winding.
Xav txog ib tug raug phab ntsa adapter los yog roj teeb charger. Lub tshuab hluav taws xob tso tawm qhov hluav taws xob siab (xws li 230V) mus rau qee yam kev nyab xeeb, hais 12V AC. Tom qab ntawd lub rectifier kicks hauv thiab hloov nws mus rau DC usable. Yog tsis muaj nws, koj lub transformer ib leeg tsuas yog tsis tuaj yeem siv lub xov tooj, LEDs, lossis cov khoom siv hluav taws xob niaj hnub no kom zoo.
Muaj ob peb hom uas koj yuav khiav mus rau:
Ib nrab -wave rectifiers: Super yooj yim - tsuas yog ib lub diode. Lawv tsuas yog siv ib nrab ntawm AC nthwv dej xwb, yog li lawv pheej yig tab sis tsis muaj txiaj ntsig zoo thiab tawm ntau ripple.
Tag nrho -wave rectifiers: Cov no siv ob lub diodes thiab feem ntau xav tau ib qho chaw -tapped transformer. Lawv ua kom zoo dua siv ob feem ntawm lub voj voog AC.
Choj rectifiers: Kuv tus kheej nyiam rau feem ntau cov haujlwm. Plaub diodes teem rau hauv ib tug choj teeb. Tsis xav tau qhov nruab nrab kais, yog li lawv ua haujlwm nrog cov hloov pauv tsis tu ncua thiab muab koj cov khoom puv -yoj hloov dua siab tshiab.
Nyob rau hauv lub neej tiag tiag, koj pom cov combo no nyob txhua qhov chaw - los ntawm cov xov tooj me me rau kev teeb tsa loj xws li vuam tshuab lossis lub cev muaj zog tsav. Lub tshuab hluav taws xob tswj xyuas qhov hluav taws xob muaj kev nyab xeeb, thiab lub rectifier muab lub zog DC nyob ruaj khov.
Lub rectifier ua dab tsi ntxiv rau qhov pib hloov dua siab tshiab? Nws pab tiv thaiv cov khoom me me thiab ua rau nws yooj yim dua ntxiv rau cov tswj hluav taws xob tom qab. Niaj hnub nimno versions siv diodes zoo dua kuj nkim tsawg zog li cua sov.
Koj yuav pom qhov hloov pauv no-ntxiv rau- teeb tsa rectifier hauv UPS systems, cov khoom siv hluav taws xob rau lub iav suab, thiab txawm tias nyob rau hauv lub zog tauj dua tshiab xws li hnub ci teeb. Raws li peb txav mus rau lub tsheb hluav taws xob thiab cov phiaj hluav taws xob ntse dua, cov kev sib txuas ua kom tau txais txiaj ntsig zoo dua.
Tag nrho hauv tag nrho, thaum koj nkag siab tias lub rectifier ua dab tsi, nws paub meej tias vim li cas nws yog qhov loj heev. Nws yog tus choj uas cia peb siv lub zog AC yooj yim thaum tseem pub rau peb DC - cov khoom siv tshaib plab. Yooj yim, txhim khu kev qha, thiab tseem ceeb heev hauv lub ntiaj teb niaj hnub no.
FAQ
Q: Lub rectifier ua li cas?
A: Lub rectifier hloov pauv tam sim no (AC) mus rau tam sim no ncaj qha (DC). Nws siv diodes kom cia hluav taws xob ntws mus rau hauv ib qho kev taw qhia nkaus xwb, tig rov qab - thiab - tawm AC mus rau ib qho siv tau - txoj kev DC fais fab.
Q: Vim li cas peb thiaj xav tau lub rectifier nrog lub transformer?
A: Transformers tsuas tuaj yeem hloov qhov voltage tab sis tseem tso zis AC. Lub rectifier ntxiv tom qab lub tshuab hloov pauv hloov AC rau hauv DC kom nws tuaj yeem siv hluav taws xob xws li chargers, LEDs, thiab circuits.
Q: Dab tsi yog hom rectifiers tseem ceeb?
A: Cov feem ntau yog ib nrab -yoj (yooj yim tab sis tsis tshua muaj txiaj ntsig), puv -wave (siv ob qho tib si AC halves), thiab choj rectifiers (feem ntau nrov vim lawv ua haujlwm nrog ib qho kev hloov pauv thiab tsis xav tau qhov chaw kais).
Q: Qhov twg yog transformer + rectifier ua ke feem ntau siv?
A: Koj yuav pom lawv nyob rau hauv xov tooj chargers, fais fab adapters, roj teeb chargers, industrial machinery, vuam khoom, UPS systems, thiab txawm lub hnub ci zog teeb.
