Scheme raj amplifier. Thaiv daim duab ntawm lub amplifier

Qhov tsab xov xwm yuav tsum tau kawm rau kev nthuav dav amplifier Circuit Court nqus hlab. Ntawm cov hoob kawm, cov txheej txheem no yog outdated, tab sis mus rau hnub no koj yuav ntsib cov kiv cua ntawm "retro". Ib tug neeg cia li xav cov raj suab, thiab ib tug neeg yog koom nyob rau hauv muab rau ib tug thib ob lub neej mus rau lub kos duab, Dilapidated, restores nws me ntsis los ntawm me ntsis. Muaj ntau pib xyaum ua xov tooj cua tswv, uas ua hauj lwm nyob rau hauv cov huab cua, siv lub teeb rau kev tsim kho ntawm ib co schemes cascades. Piv txwv li, UHF yooj yim los tsim kom tau precisely rau haib teeb, txij li thaum lawv transistors yuav dhau nyuab.

Lub Khoos Loos Tsev amplifier Circuit Court

Qhov thaiv daim duab yog raws li nram no:

1. Lub teeb liab qhov chaw (microphone tso zis, xov tooj, computer, thiab hais txog. D.).
2. ntim tswj - ib tug potentiometer (nce mus nce los resistor).
3. Lub preamplifier yog ua nyob rau hauv lub teeb (feem ntau yog transistor), ib tug transistor.
4. Cov saw ntawm lub suab nrov tswj Circuit Court yog kev cob cog rua rau lub anode preamplifier teeb.
5. Kawg amplifier. Yog feem ntau yog ua nyob rau ntawm lub pentode, piv txwv li, 6P14S.
6. Ib txoj kev ntaus ntawv, uas tso zis hauv lub amplifier thiab dock hais lus system. Raws li txoj cai, qhov no luag hauj lwm no yog ua si cia transformer hom (220/12 Volt).
7. Fais fab mov, nyob rau lub ob voltages generated: qhov 250-300 V thiab 6.3 V ac (12.6 yog tias tsim nyog).

Raws li cov kev thaiv daim duab, ua tau lub tsev nyob rau hauv tus. Nws yog tsim nyog kom huv si xyuas txhua qhov system ntawm los tsim lub amplifier tsis tau tshwm sim los muaj teeb meem.

LF fais fab Amplifier

Raws li hais saum toj no, lub hwj huam mov yuav tsum tsim ob tug sib txawv voltage nqi. Ua li no, siv ib tug transformer nrog ib tug tshwj xeeb tsim. Nws yuav tsum muaj peb windings - Tshua, theem nrab thiab tertiary. Cov yav tas ob tsim ib tug alternating voltage ntawm 250-300 V thiab 6.3 V, ntsig txog. 6.3 - ib lub mov voltage ntawm cov hlab filaments. Thiab yog hais tias nws yog, raws li ib tug txoj cai, tsis yuav tsum tau tej kev kho mob, rau piv txwv, nyob rau hauv lub pom thiab rectification, cov AC 250 volts xav tau ib tug me ntsis kev hloov. Qhov no yuav tsum mus cuag lub amplifier Circuit Court ib lub hwj chim qhov twg los.

Yog xav thov no rectifier thaiv, uas yog tsim los ntawm cov plaub semiconductor diodes thiab cov ntxaij lim dej - Electrolytic capacitors. Diodes cia ncaj alternating tam sim no thiab ua rau nws tas mus li. Ib tug capacitor muaj ib qho kev nthuav feature. Yog hais tias koj saib nyob rau sib npaug Circuit Court capacitors rau AC thiab DC (los ntawm Kirchhoff txoj cai), koj yuav saib tau ib tug feature. Nyob rau hauv lub lag luam, lub capacitor impedance yog hloov nyob rau hauv lub qhov tam sim no circuits.

Tab sis thaum kev khiav hauj lwm nyob rau hauv lub AC Circuit Court nws yog hloov los ntawm ib tug neeg xyuas pib ya. Nyob rau hauv lwm yam lus, thaum ntsia tau rau hauv ib lub hwj chim capacitor bank koj yuav tau txais ib tug huv DC voltage, tag nrho cov nce mus nce los tivthaiv yuav ploj vim lub luv luv-circuited terminals nyob rau hauv qhov sib npaug Circuit Court.

Yuav tsum muaj rau cov transformer

Ib qho tseem ceeb mob - lub xub ntiag ntawm qhov yuav tsum tau tus xov tooj ntawm windings rau cov mov ntawm anodes thiab cov filament yarns qhov muag teev. Nyob ntawm seb uas Circuit Court siv ib lub hwj chim amplifier yuav tsum tau ib tug txawv voltage hwj chim glowing. Standard tus nqi - yog 6.3 V. Txawm li cas los, ib co teeb, xws li G-807, PG-50, yuav tsum tau ib tug voltage ntawm 12.6 V. no complicates tus tsim thiab ua rau kev siv ntawm loj loj transformer.

Tab sis, yog hais tias koj npaj yuav sau hwj chim thiaj tau tuaj rau tus ntiv tes teeb (6N2P, 6P14P li al.), Qhov yuav tsum tau rau xws li ib tug fais fab mov voltage no tsis yog glowing. Xyuam xim rau qhov luaj li cas - yog hais tias koj xav mus sau ib tug me me amplifier, siv ib zaug xwb-kauj transformers. Lawv muaj ib tug drawback - nws yog tsis yooj yim sua kom tau ib tug muaj peev xwm. Yog hais tias muaj yog ib lo lus nug ntawm lub hwj chim, nws yog zoo dua siv transformers TS-180, TS-270.

Housing rau pab kiag li lawm

Rau tsawg zaus amplifiers yog zoo tshaj plaws siv cov vaj tse los ntawm txhuas los yog galvanized, assembling ntawm radioelements tsim ib nrab txoj kev. Lub disadvantage ntawm lub assembling ntaus ntawv rau ib tug luam Circuit Court board - rau cua sov teeb nyob rau ob txhais ceg pib delaminate los ntawm cov ciav hlau, nws yog kev puas tsuaj soldering. Poob lawm kev sib cuag, thiab ua hauj lwm Ulf yuav tsis ruaj tsis khov, muaj lwm cov suab.

Yog hais tias nyob rau hauv lub pre-theem amplifier Circuit Court yog thov mus rau lub transistor, nws yog wiser mus ua nws nyob rau hauv ib tug me me daim PCB - yuav muaj ntau txhim khu kev qha. Tab sis txoj kev siv cov hybrid ua nws lub hwj chim uas yuav tsum tau. Nws yuav teem nyob rau hauv ib tug ntoo rooj plaub rau ib tug guitar Ulf. Tab sis hauv koj xav tau rau nruab ib tug hlau chassis, uas yuav tsum tau sau tag nrho cov ntaus ntawv. Nws yog ib advisable mus thov cov hlau casing, raws li nws ua rau nws yooj yim mus soj ntsuam cascades los ntawm txhua lwm yam, uas eliminates tau ntawm nws tus kheej-excitation thiab lwm yam cuam tshuam.

Kho ntim thiab cov laus

ib tug yooj yim amplifier Circuit Court yuav supplemented los ntawm ob txoj kev cai - volume thiab cov laus. Tus thawj regulator mounted ncaj qha rau ntawm lub ntug dej ntawm Ulf, nws tso cai rau kom hloov tus nqi ntawm cov khoom teeb liab. Koj siv tau nce mus nce los resistors ntawm tej tsim uas yuav ua hauj lwm zoo nyob rau hauv lub Ulf. Nrog lub suab nrov tswj kuj muaj teeb meem yuav tsum tsis txhob tshwm sim - ib tug kuj sib txawv thiab resistor muaj nyob rau hauv lub anode Circuit Court ntawm tus thawj theem. Tsuas yog yuav tau los mus txiav txim nyob rau hauv uas cov kev taw qhia kev sib hloov yog ua mus ntxiv rau RF, thiab nyob rau hauv dab tsi muaj peev xwm rau lub LF.

Nws yog ib advisable mus ua tag nrho cov txoj kev los ntawm muaj amplifiers, txwv tsis pub nws yuav tsis yooj yim rau siv cov qauv siv. Tab sis nws yog cia li lub suab nrov tswj Circuit Court, nws yog wiser rau nruab ib tug me me chav tsev, uas yuav hloov lub zaus nyob rau hauv ib tug ntau yam. Schemes raj amplifiers tej zaum yuav muaj me me modules rau semiconductors - laus, tsis muaj-pass ntxaij lim dej. Yog hais tias muaj yog tsis muaj lub siab xav mus ua laus-koj tus kheej, nws muaj peev xwm yuav yuav nyob rau hauv khw muag khoom noj. Tus nqi ntawm tej laus no mas tsis tshua.

tso suab amplifier

Tab sis Ulf tso suab mloog yog npaum li cas nicer tshaj mono. Thiab kom nws ob zaug raws li ib qho nyuaj - koj yuav tsum sau lwm Ulf nrog tib tsis. Raws li ib tug tshwm sim, uas koj tau txais ob inputs thiab raws li ntau outputs. Thiab lub hwj chim amplifier Circuit Court thiab ua ntej theem yuav tsum zoo tib yam, txwv tsis pub ua tau zoo yuav sib txawv.

Tag nrho cov capacitors thiab resistors ntawm tib tsis - los ntawm qhov tseem ceeb ntawm ntau yam thiab tolerances. Cov uas yuav tsum tau rau kuj hloov - yuav tsum tau siv coupled tsim rau volume tswj, thiab lub suab nrov. Lub tswv yim hais tias nws yog tsim nyog los xyuas kom meej uniformity kho cov tsis nyob rau hauv ob qho tib si raws.

system 2.1

Tab sis los txhim kho lub suab zoo, koj muaj peev xwm ntxiv ib subwoofer uas yuav ua kom nrov loj cov uas tsis muaj frequencies. Zuag qhia tag nrho amplifier kev twb kev txuas Circuit Court tsis hloov, tsuas yog tus thib peb block yog ntxiv. Nyob rau hauv qhov tseeb, koj yuav tsum muaj peb tag zoo tib yam mono amplifiers - ib tug rau rau sab laug channel, txoj cai, subwoofer.

Nco ntsoov tias lub ntim tswj rau cov subwoofer yog cais los ntawm lub CFP. Qhov no yuav tso cai rau nyob rau hauv lub neej yav tom ntej hloov lub nce qib. Luas lub "ntxiv" zaus siv los ntawm ib tug yooj yim Circuit Court, uas muaj xws li ob peb capacitors thiab resistors. Tab sis koj muaj peev xwm siv ready-made tsawg-pass cov ntxaij lim dej, uas yog muag nyob rau hauv tej khw ntawm xov tooj cua Cheebtsam.

xaus

Peb tau soj ntsuam lub tswvyim ntawm lub raj amplifiers, uas yog feem ntau pheej rov qab ua hams nyob rau hauv lawv designs. Self-manufacture lawv nyob rau hauv lub zog ntawm ib tug txiv neej uas paub yuav ua li cas rau lis ib tug soldering hlau, thiab kev ntaub ntawv. Tab sis yog hais tias koj tsis paub qhov txawv nruab nrab ntawm tus resistor thiab lub condenser tsis txhob kawm dab tsi, thiab xav tau ib tug amplifier, nws yog qhov zoo tshaj plaws mus nug ib tug txog tej tswv ua lub VLF.