Yuav ntsuas cov khoom zoo ntawm cov khoom siv hluav taws xob zoo hauv cov tshuab audio
Thaum tsim lub siab - zooAUDIO SYSTEM, lub hwj chim hluav taws xob amplifier, ib qho tseem ceeb hauv lub cim suab, cuam tshuam ncaj qha rau tag nrho cov suab zoo ntawm cov kab ke. Txawm li cas los xij, kev ua lag luam yog dej nyab nrog ntau qhov hluav taws xob ntau tshaj plaws ntawm kev ua tau zoo, ua kom muaj tseeb thiab ua rau muaj kev sib tw tseem ceeb rau cov neeg siv khoom nruab nrab. Kab lus no yuav muab rau hauv -} qhov tob ntawm ob peb qho tseem ceeb ntawm lub zog hluav taws xob ntsuas, muab cov lus qhia tseeb rau cov neeg siv khoom.
I. Yuav tshuaj xyuas ib qho Amplifier
1. Cov kev ntsuas xyuas qhov yooj yim
① Tso zis tawm
Lub zog tso zis yog ib qho ntawm cov txuj ci ua tau zoo tshaj plaws ntawm kev nthuav dav. Qhov zoo tshaj plaws yuav tsum muaj lub zog txaus los ntseeg tau zoo heev thaum tsav cov hais lus ntawm sib txawv impedance thiab rhiab. Efficiency kuj yog qhov tseem ceeb txiav txim siab, cuam tshuam txog lub suab muaj peev xwm hloov hluav taws xob rau lub suab hluav taws xob. Lub siab - effency amplifier amplifier tsis tsuas yog tswj cov cua sov tsawg dua li ncua kev ua haujlwm, txhim kho kev ruaj khov.
Cov lus teb
Cov lus teb ntsuas ntsuas qhov muaj peev xwm ua kom muaj peev xwm ua kom pom tseeb cov cim ntawm cov cim ntawm ntau zaus. Ib qho zoo tshaj plaws amplifier yuav tsum tau ceev cov lus teb nyob thoob plaws ib qho kev pom zoo sib xws (kom txhua yam hauv cov suab paj nruag yog qhov tseeb. Tus dav dav lub sij hawm teb ntau thiab cov me dua qhov tsis sib xws nyob hauv qhov ntawd (piv txwv li, ±, ± 1db), qhov zoo dua lub peev xwm teb tau zoo.
③ Distortion
Distortion tau hais txog kev ua tsis tiav ntawm cov neeg tsis muaj kev cuam tshuam los ntawm lub suab nrov thaum ua lub teeb liab suab. Tsawg distortion yog qhov tseem ceeb icark ntawm lub siab-} zoo amplifier, kom muaj suab ntshiab thiab ntuj. Qhov no suav nrog kev ua kom zoo nkauj thiab muaj kev sib cais sib xyaw, xav txog qhov sib txawv ntawm lub suab tawm tsam thiab nws lub cim nkag. Qhov qis dua qhov distortion (piv txwv li, hauv qab 0.05% rau kev siab siab- kev ua tib zoo} udio), qhov tseeb tiag thiab lub suab.
④ Qhov Ncob Tes - rau -} suab nrov piv
Lub cim kos - rau - suab nrov ntawm cov teeb liab xav tau rau hauv lub suab nrov nrov, qhia hauv DB. Ib qho SNR siab dua (piv txwv li, saum 60 dB) qhia tias tsis tshua muaj suab tshaj qhia los ntawm lub suab nrov, ua rau muaj suab ntshiab dua, purer suab zoo.
2. Mloog
Kev npaj ib puag ncig kev ib puag ncig siab- Zoo} Cov Suab Zoo Suab thiab Hais Lus / Headphones kom ntseeg tau tias muaj kev nyab xeeb thiab kev ntsuam xyuas chaw dawb.
Cov ntsiab lus xeem: Hom suab nkauj ua si, suav nrog cov twj paj nruag, kev seev suab, kom ntsuas lub suab nrov thaum lub suab zoo.
Cov ntsiab lus tseem ceeb kom pom tseeb rau: suab meej, nthuav dav, qis {{{0 zaus txuas ntxiv, suab txuas ntxiv, thiab muaj ntau yam. Lub siab -} Cov suab nrov yuav tsum yog kom raug cov neeg nplua nuj, xa cov nplua nuj, thiab zoo {{}} txhais lub suab.
3. Tsos thiab workmanship kev kuaj xyuas
Ntim thiab tsos: kos lub Amplifier lub tshuab ntim sab nraud kom ntseeg tau tias nws yog qhov luam tawm, thiab sau cia zoo nkauj, thiab sau cia zoo nkauj. Tsis tas li, tshuaj xyuas txhua tus phooj ywg poob siab -}} nqus thiab sau cov ntaub ntawv. Tsis tas li, saib xyuas cov ntsiab lus xws li lub vaj huam sib luag tiav, sab nrauv vaj huam sib luag, cov ntsia hlau lub qhov zaws, thiab lub pob qhov taub. Lub siab - Cov zoo tshaj plaws amplifier yuav tsum tau ua kom zoo nyob rau hauv cov chaw no.
Sab hauv cov qauv: Qhib lub amplifier thiab tshuaj ntsuam qhov loj thiab qhov hnyav los xyuas kom nws yog qhov cim tau meej thiab muaj peev xwm ntim khoom, thiab hom siab high {{power tranistors. Cov ntsiab lus no tuaj yeem cuam tshuam qhov zoo ntawm lub amplifier tus qauv sab hauv.
4. Kev kuaj xyuas tsis tu ncua
Ntev - lub sij hawm stability: lub amplifation yog raug ua haujlwm txuas ntxiv mus soj ntsuam seb nws lub zog tsim hluav taws xob thiab suab zoo nyob ruaj khov.
Load muaj peev xwm xeem: lub suab hluav taws xob cov zis thiab lub suab zoo yog sim ua kom sib txawv thauj cov impedances. Lub siab -} Cov txiaj ntsig zoo dua yuav tsum tau ua tau ruaj khov tshaj qhov kev ruaj khov.
Ii. Yuav ua li cas txheeb xyuas qhov qis-} Zoo tshaj plaws Amplifier
Sab hauv qauv
Toroidal Hloov pauv thiab Lim Captors
Qhib lub Amplifier thiab tshuaj ntsuam qhov loj thiab qhov hnyav ntawm toroidal transformer kom ntseeg tau tias nws tau hais tawm cov zis tawm lub zog, thiab tshuaj xyuas seb nws puas yog nws tshwm sim. Tsis tas li, tshuaj xyuas seb lub tshuab lim capacitors yog txoj kev siv thiab seb lawv lub peev xwm thiab ua rau Voltage yog qhov txaus. Tsawg -} Cov khoom siv Ampifas zoo siv me me, qis}}}}}}}-}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} lub npe capacitors. Cov capacitect 'tiag tiag withstand voltage thiab muaj peev xwm deb tshaj li cov nqi tau hais tseg.
High -} cov transistors thiab op - amp chips
Saib xyuas tus naj npawb ntawm cov siab - huab cua hatistors, lawv ntim, thiab seb lawv puas tuaj los ntawm cov npe nrov. Tsawg -} Cov suab nrov zoo siv tau qis dua op {{}} Am1}}}}} tej daim
Kev tiv thaiv Circuit Court
Kev tiv thaiv kev tiv thaiv raws cai muab kev tiv thaiv rau overcurrent, overvoltage, overvoltature, thiab sijhawm qeeb. Tsawg -} Cov suab nrov zoo tshaj plaws, ntawm qhov tod tes, feem ntau tsuas muaj kev tiv thaiv me ntsis, thiab siv cov kev tiv thaiv lwm yam yooj yim. Txheeb xyuas qhov kev ncaj ncees ntawm kev tiv thaiv Circuit Court los ntawm kev soj ntsuam daim duab circharamm lossis luv luv}}} puag ncig cov zis.
Suab Zoo
Lub suab zoo tshaj plaws muab cov suab huv, kev cuam tshuam pub dawb zoo li kev lom zem thiab nrov nrov. Nws muab cov suab ntshiab, cov suab ntse thiab raug kho kom txhua qhov hauv lub teeb liab suab. Nws kuj tseem tsim cov nplua nuj, fawm kib, tso cai cov twj paj nruag thiab suab sib txawv kom pom meej meej qhov sib luag. Qhov qes -} Zoo tshaj plaws Amplifier, ntawm qhov tod tes, tuaj yeem ua kom pom tseeb, plam cov khaubncaws sab nraud povtseg.
Hwj chim thiab taw tes - rau - suab nrov piv
Lub amplifier lub hwj chim yuav tsum phim cov lus nws tau txuas nrog. Lub siab - sov amplifier kom muaj zog, muaj zog, thiab lub suab zoo. Tsis tas li ntawd, lub teeb liab - rau {{4 4}} Cov cim suab nrov yog qhov taw qhia tseem ceeb ntawm amplifier kev ua tau zoo. Lub siab -} Zoo Amkriftable lub cim xeeb txhais tau tias tsis muaj suab nkauj, thaum muaj suab nrov nrov nrov thaum muaj suab nrov txhais tau tias suab nrov.