Amplifier Operational: incazelo, Umgomo we operation, ukusetshenziswa

electronics Analog - omunye izigaba ebaluleke kakhulu electronics, egcwele itshe engenile ukuhambisa kusuka resistors, rheostats futhi ammeters ukuba digital "isilinganiso". Ukusebenzisa inhlanganisela izingxenye eziningi kagesi kanye ukwakha izifunda eziyinkimbinkimbi, electronics analog ukuvumele ukusetshenziswa yabo yokuletha umdwebo elula zikagesi digital. Namuhla, electronics analog - isisekelo sokuthethelelwa eziyinkimbinkimbi busebenze lanamuhla kagesi.

Omunye analog electronics - op-amp, okuyinto isikimu eziyinkimbinkimbi multistage usebenzisa Semiconductors. Ngendlela ehambisanayo nale sensimbi sine okokufaka ezimbili, okuyinto nabokhulumile komunye nomunye. Kuyaphawuleka ukuthi esinye sezici ephambene isignali ethola engeyokuqala kuyinto inani elikhulu inzuzo.

ukukhishwa Integral kusho ukuthi amplifier tekusebenta ibekwe ngokukhethekile omunye abasebenza chip amabhlogo. Busebenze zale divayisi, kanye nazo zonke ezinye izakhi, wathola gama elikhethekile. Njengoba umthetho, nokusebenza amplifier wesifunda imidvwebo ukumela calantsatfu lomkhulu. Nokho, muva nje, kungenzeka ukuthola uphawu esikhundleni-amplifier - isikwele unxantathu ngaphakathi. Cishe, inkulumo enjalo wethulwa lula umfanekiso idivayisi imidvwebo block.

Operational izicelo amplifier namuhla wehlukile kakhulu. Lezi amadivayisi multistage ezincane ezisetshenziswa ngezindlela ezihlukahlukene yokukhulisa umsindo izimpawu ezahlukene. Ngaphezu kwalokho, lo mshini wokukhulisa umsindo tekusebenta ngokuvamile sisetshenziswa generator yezinzwa, kanye nezihlungi umsindo imvamisa ububanzi. Ngaphezu kwalokho, amandla isibe buyindlela esisemqoka kulombhalo elawula uhlelo a sebuningini lucobo (isib, izikhungo zesimo sezulu).

Umgomo we operation ye amplifier tekusebenta ngokuvamile kuqhathaniswa izikali Apothecary, inaliti okuyinto baphambukile bebheke lapho umthwalo phezu inkomishi ngobukhulu. amplifier tekusebenta kuphela kubalulekile ukuphawula omunye izinkomishi ngumuntu "+", owesibili - "-" futhi ukubaluleka elinganisiwe ukuba esikhundleni volts esikhundleni amagremu. Ngakho, amplifier ukhiqiza zinamandla ukuqhathanisa module kwesinye futhi kokufaka yesibili. (- ngenye indlela linencazelo ephambene) uma umehluko nebangomuso okokufaka ngqo mkhulu ephambene, voltage omuhle ekhiqizwa ngesikhathi okukhiphayo.

Ukubuyela ekubizweni yokukhulisa umsindo tekusebenta kulombhalo wesifunda kufanele kuphawulwe ukuthi ukufinyelela ngqo ngokuvamile luchazwa ngegama "+" futhi ephambene - "-". Nokho, labo izinhlamvu ngeke ngaso sonke isikhathi kuzosebenza! Kwesinye isikhathi izikimu lapho kuqubuka yokungena ayisethiwe, kodwa kunalokho nabokhulumile inothi input ngesimo imibuthano encane.

Ukuze kuncishiswe nozwela amplifier tekusebenta technical kunyakaza okokufaka isignali kagesi singenelwe-amplifier tekusebenta CCA - impendulo engeyinhle. Ngokusetshenziswa izingxenye wesifunda ezifana kwakwakhe ukukhululwa nge okokufaka nabokhulumile nge Resistor ozinikele, ngeziphambeko okuncane kusuka isignali okufakwayo inikezwe kungukuthi ethunjwa amplifier tekusebenta ngesikhatsi kokuhlinzwa.

Ngezinye izikhathi i-amplifier nokusebenza ku idayagramu wesifunda amadivayisi eziyinkimbinkimbi isebenzisa okubuyayo, lapho kwakwakhe kukhicite okokufaka omuhle futhi okukhipha nge Resistor ozinikele. onentshisekelo side effect oluvelayo uma usebenzisa okubuyayo - "hysteresis iluphu".

Ukuphetha, yokukhulisa umsindo tekusebenta esetshenziswa njengoba unipolar lapho, lapho futhi okuguquguqukayo ugesi.