Cov Hoob Tsheb Amplifier

Lub USs ntawm Lub Tsheb Fais Amps

Tag nrho cov hwj huam amps yeej tseem ceeb tib yam kev ua haujlwm thiab ua haujlwm raws li cov ntsiab lus tseem ceeb tib yam, tab sis qhov ntawd tsis txhais hais tias cov chav kawm ntawv uas muaj lub zog ua haujlwm raug tsim muaj sib npaug. Qee cov amps zoo dua rau qhov kev siv tshaj li lwm tus, thiab qhov yoojyim tshaj los qhia txog yam koj xav tau yog los saib hauv chav kawm. Txhua chav kawm raug xa mus rau los ntawm ib tsab ntawv ntawm tus niam ntawv thiab yog delineated zoo nkauj meej, tab sis kuj muaj ob peb ua ke thiab cov hybrids uas muaj cov yam ntxwv ntawm ntau dua ib hoob.

Lub Taub Hau ntawm Chav Kawm

Nyob rau theem pib tshaj, tsuas muaj ob hom hwj huam xwb amplifiers: analog amps thiab switching amps. Cov hom kev kawm no tseem tuaj yeem tawg ua ntau tshaj li cov ntawv kawm. Ib txhia ntawm cov chav kawm no, xws li T thiab Z, yog cov khoom tsim tshwj xeeb, trademarked designs, thiab lwm tus, zoo li A thiab B, yog tsim los ntawm ntau hom tuam ntxhab.

Tawm ntawm tag nrho cov chav kawm txawv amplifier, tsuas muaj plaub uas feem ntau yog siv hauv tsheb lub tshuab, thiab ib qho ntawm cov no yog hom ua ke. Cov hoob four amplifier kawm A, B, AB, thiab D.

Chav Kawm A Tsheb Amplifiers

Ntawm qhov txhais, hoob A Amplifiers yog "ib txwm nyob rau hauv." Cov amps no yog pawg ua ke vim tias lawv siv lub voj voog sab hauv uas tsim los kom tas mus txog tam sim no dhau los ntawm cov khoom xa tawm. Qhov kev tsim cov qauv no tuaj yeem nrog ob qho kev ua tau zoo thiab qhov tsis zoo uas ua rau hoob A amps zoo haum rau qee cov kev siv thiab tsis zoo rau lwm tus.

Qhov teeb meem loj tshaj thaum nws los txog rau chav kawm A amps nyob rau hauv daim ntawv tso suab tsheb hauv lub tsheb loj.

Chav Kawm B B Amplifiers

Tsis zoo li hoob A amps, hoob B power amplifiers tau hloov. Qhov ntawd txhais tau hais tias lawv siv cov khoom hauv vaj hauv tsev uas tso cai rau lawv kom "hloov" lawv cov transistors tawm thaum tsis muaj lub teeb liab los ua kom nrov loj. Qhov no tshwm sim hauv kev ua haujlwm zoo dua qub, uas ua rau cov hoob B amps zoo haum rau tsheb daim ntawv thov, tab sis nws kuj tuaj yeem nrog kev tsis ntseeg siab.

Chav Kawm Ntawv AB Lub Tsheb Cuamtshuam

Cov amps no yog ib qho kev sib koom tes ntawm cov hoob A thiab B amplifier. Txawm hais tias lawv cov transistors yeej ib txwm muaj ntws los ntawm lawv, lawv siv circuitry uas muaj peev xwm txo qhov nyiaj tam sim no thaum tsis muaj teeb liab. Qhov ntawd ua tau ntau dua ntawm efficiency dua li cov chav kawm ntawv ntshiab A amps tsis muaj teeb meem ntau npaum li ib hoob B amp. Vim yog cov txiaj ntsig zoo no, cov tub kawm ntawv qib qis zog amplifiers feem ntau yog siv ntau hom kabmob hauv cov tsheb suab tshuab.

Chav Kawm Ntawv D Lub Tsheb Cuam Tshuam

Cov hoob A, B, thiab AB amps yog cov qauv ntawm cov hoob analog amplifier, uas ua rau cov chav kawm ntawv D tsuas "hloov" amp hoob feem ntau siv hauv tsheb suab tshuab. Tsis zoo li cov hoob A, B thiab AB, chav kawm D amps ua haujlwm los ntawm kev hloov thiab rho tawm tam sim no rau lawv cov transistors sai heev.

Qhov no zoo tsim lub teeb hloov, los yog pulsed, tso tawm teeb liab uas yog mapped rau lub teeb liab analog tawm.

Thaum cov hoob kawm D tsheb amps ua tau zoo heev, txoj kev hloov / kev ua haujlwm pauv tau nyob hauv ib qho qis ntawm distortion nyob rau hauv ntau dua frequencies. Qhov no feem ntau muab tshem tawm los ntawm cov lim uas tsis tshua muaj siab vim tias qis tshaj qhov tsis tuaj yeem raug kev txom nyem los ntawm tib qho kev cuam tshuam. Ntau ntawm mono subwoofer amps yog hoob D, tiam sis qhov loj thiab hwj chim pab tau ua rau lawv yog ib qho kev kawm zoo tshaj plaws rau cov chav kawm ntau yam .

Tshaj A, B, thiab D

Feem ntau lub tsheb cov amplifiers yog A / B lossis D, tiam sis kev hloov ntawm ob hom kev loj no kuj muaj.

Cov chav kawm ntxiv no muaj feem xyuam thiab xaiv cov cwj pwm ntawm cov hom phiaj ntawm cov amps hauv kev sim kom muaj kev ua tau zoo dua tsis tuaj yeem ua rau ntau dhau.

Piv txwv li, tib yam li, AB amplifiers muab cov qauv ntawm A thiab B, chav kawm BD amps yog tsim los muab kev cuam tshuam tsawg dua ntawm cov qib high frequencies tshaj Class D amps nrog ntau dua qhov ua tau zoo uas koj xav tau los ntawm hoob B

Lub Hauv Paus Haujlwm Uas Siv Amplifier Uas Koj Xaiv Tau?

Nrog kev qhia txog bD, GH thiab lwm hom kev txhawb zog, xaiv hom kawm kom zoo tuaj yeem zoo li ntau nyuab tshaj qhov nws tau ua ntej. Yog tias koj tsuas xav tau lub suab zoo, tsis tau sib sib zog nqus, qhov kev cai ntawm tus ntiv tes xoo yog qhov A / B amplifiers yog qhov zoo tshaj plaws rau ntau yam thiab feem ntau sib tham, thaum chav D amplifiers zoo dua nyob hauv kev tsav tsheb subwoofers. Koj tuaj yeem ua rau nws nyuab dua qhov ntawd yog tias koj xav tau, tab sis ua raws li qhov kev npaj ua ntawd yuav ua rau koj taug txoj kev ncaj.