Yuav ua li cas yuav ua rau VLF nrog lawv ob txhais tes tawm ntawm seem cov ntaub ntawv?

Nyob rau hauv no tsab xov xwm koj yuav kawm txog yuav ua li cas ua lub CFP nrog lawv ob txhais tes tawm ntawm seem cov ntaub ntawv. Thiab nyiam yuav tau muab rau cov lug uas yuav replicate txawm tias ib tug beginner xov tooj cua amateur uas tsuas yog kawm nyeem ntawv hluav taws xob schematics. Tiam sis ua ntej tej yam uas ua ntej. Rau ib tug pib nws yog tsim nyog sau cia hais tias muaj plaub hom schemes: rau hauv cov hlab, transistors, kev circuits, raws li zoo raws li tov, uas tej zaum yuav muaj ob peb hom hlwb. Piv txwv li, ib tug preamplifier peev xwm yuav ua nrog transistors thiab cov terminating - lub teeb.

Yuav ua li cas mus xaiv lub tswvyim?

Nws yuav tsum txiav txim siab li cas koj tau txais los ntawm cov ntaus ntawv thiab nyob rau hauv tej teb yeej yuav tau siv nws. Nyob rau qhov no nyob zoo li cas ntawm Ulf tswvyim yuav siv tau. Tab sis nyob rau hauv txhua rooj plaub, ntawm chav kawm, ib tug xaiv ntawm niaj hnub lub caij hauv paus - yog qhov zoo tshaj tshuaj. Nco ntsoov tias teeb technology muaj ib tug lossis loj drawback - lub loj heev fais fab mov. Yog thiab nrhiav tam sim no lub transformers yuav tsis tshua muaj neeg yooj yim. Thiab yog hais tias muaj yog tsis muaj Tshuag ntawm teeb, ces cov tsis ua hauj lwm ntawm ib tug, koj poob koj lub hwj chim. Yuav kom ua lub teeb Ulf tus kheej ob txhais tes yog yooj yim heev, tab sis tus tsim puv cumbersome.

Transistor tsim saib ntau txaus nyiam, tab sis lawv kuj muaj ib tug loj disadvantage. Nrog rau cov khees complexity ntawm lub Circuit Court koj tau txais ib tug heev tsawg lub hwj chim. Nws yog yuav hais tias koj yuav tau txais ib tug loj loj Circuit Court board, nyob rau hauv uas lub ntsiab yog cov txheej txheem ntawm nyob ze rau txhua lwm yam, thiab lub hwj chim ntawm tag nrho cov pab kiag li lawm - tsis muaj ntau tshaj li 10 watts. Yog li ntawd, nws tseem yog ib tug kev xaiv thib peb - qhov siv ntawm tej daim. Tej yam yooj yim, txhim khu kev qha, check (nyob rau hauv ib txwm siv).

PCB

Kom installation tau nyob rau hauv ib tug me me rau thaj tsam, yog li ntawd koj yuav txaus rau ib daim ntawm cov ntawv nyiaj khoom 30x30 hli. Tab sis yuav tsum muaj ntaub ntawv rau thiaj li hu ua ntses - PCB nrog qhov rau mounting lub ntsiab thiab me me thaj ua rau thaj ntawm cov hlau nyob ib ncig ntawm lawv. Qhov no yuav ua tau qhov zoo tshaj plaws tshuaj. Tsim yooj yim VLF nrog lawv txhais tes - nws yog ib tug teeb meem ntawm feeb.

Yog hais tias muaj no tsuas muaj ib tug ntawv ci PCB, koj yuav tau mus txiav lub grooves nyob rau hauv nws. Lawv yuav ua kom ib tug me me board ntawm ob peb tooj liab snout. Rau lawv thiab yuav tsum yog tus installation ntawm tag nrho cov ntsiab ntawm cov amplifier. Nco ntsoov tias lub hwj huam mov yuav ua li cais los ntawm lub ntsiab yog ib feem ntawm lub CFP, thiab nrog nws.

Fais fab amplifier

Raws li ib tug txoj cai, domestic amps yog hwj huam txaus nyob rau hauv lub 9-18 volts. Cov no yog cov qauv tseem ceeb voltage transformers yuav pom txhua txhia qhov chaw. Cov mov Circuit Court yog txheem - transformer, plaub diodes thiab ib tug capacitor ntawm tsawg kawg yog 100 microfarads rau tau txais tshem ntawm lub alternating feem ntawm cov mov voltage.

Tab sis ib tug ntau nyob ntawm seb ntawm VLF tswvyim yuav siv tau nyob rau hauv koj tsim. Yog hais tias koj npaj yuav sau Ulf muaj hwj huam, ces koj yuav tsum tau saib nyob rau datasheet lub nti, uas koj yuav mus ua ntaub ntawv thov. Them tshwj xeeb mloog mus rau lub kab nyob rau hauv uas lub teev mov voltage ntau yam. Yog hais tias lub permissible poob 5, nws yog tej zaum yuav siv tej xov tooj nyob rau hauv charger.

Yuav ua li cas sib sau ua ke rau hauv lub amplifier

Ulf rau tej daim yuav tsum tau ntxiv cua txias. Tej zaum txawm tias ib tug muaj hwj huam tsim emit loj nyiaj ntawm tshav kub. Li ntawd, cov yuav tsum tau siv txhuas dab rau npaum txias.

Yog hais tias koj tsim ib tug haib VLF nrog koj ob txhais tes, koj yuav tsum ua tib zoo xav txog lub txias qhov teeb meem. Nws yog tau hais tias ib tug ntxiv yuav tsum tau nruab cov txias.

Nyob rau hauv dav dav, lub rooj sib txoos ntawm cov Ulf nrog koj ob txhais tes yuav tsum tsis txhob yuav nyuab. Tag nrho cov ntsiab yog kev cob cog rua raws li lub tswvyim. Thiab tom qab cov kev tswj thiab laaj check yog energized thiab txuas cov tswv yim teeb liab qhov chaw. Needless hais, tso zis rau load yog yuav tsum tau - nyob rau hauv cov lus qhia. Thaum serviceable nti amplifier pib mus ua hauj lwm tsis muaj configuration. Nws yuav tsum tau muab sau tseg tias amplifier Circuit Court yog qhov zoo tshaj plaws los mus siv xwb ib tug uas yog muab nyob rau hauv lub datasheet ntawm lub nti. Nyob rau hauv cov qauv sij hawm no coj mus rau hauv tus account txhua yam, txawm lub me tshaj nuances ntawm ib tug nti. Thiab nws yuav ua hauj lwm zoo xwb nyob rau lub hauv paus ntawm cov nuances. Siv cov tswvyim los ntawm untrusted qhov chaw, koj raug ua kom cov nti. Thiab tej zaum nws cov nqi yog theej siab.