Ho na le litekanyo tse ngata tsa mohanyetsi, hangata re amehile ka boleng, ho nepahala, boholo ba matla, matšoao ana a mararo a loketse.Ke 'nete hore lipotolohong tsa dijithale, ha ho hlokahale hore re ele hloko lintlha tse ngata haholo, ka mor'a moo, ho na le 1 le 0 feela ka har'a dijithale, eseng haholo ho bala tšusumetso e nyane.Empa lipotolohong tsa analog, ha re sebelisa mohloli o nepahetseng oa motlakase, kapa phetoho ea analog-to-digital ea matšoao, kapa ho matlafatsa letšoao le fokolang, phetoho e nyenyane ea boleng ba ho hanyetsa e tla ba le tšusumetso e kholo.Ka nako ea pounding le resistor, ya e le hantle, ke ka nako ea ho sebetsa matshwao a analoge, 'me hamorao, ho ea ka analoge potoloho dikopo ho sekaseka phello ea mong le e mong paramethara ya resistor.
Palo ea boleng ba khanyetso ea mohanyetsi - palo ea boleng ba khanyetso ea khetho ea mohanyetsi hangata e lokisoa ke kopo, joalo ka moeli oa lebone la lebone la LED, kapa sampling ea hona joale ea matšoao, boleng ba ho hanyetsa ha mohanyetsi ha e le hantle ha bo na likhetho tse ling.Empa maemong a mang, ho na le likhetho tse fapaneng bakeng sa mohanyetsi, joalo ka ho holisa lets'oao la motlakase, joalo ka ha ho bonts'itsoe setšoantšong, ho phahamisa ho amana le karo-karolelano ea R2 ho R3, 'me ha e amane letho le boleng ba eona. R2 le R3.Nakong ena, khetho ea khanyetso ea mohanyetsi e ntse e thehiloe ho: ho hanyetsa ho matla ha mohanyetsi, lerata le leholo la mocheso, ts'ebetso e mpe ea amplifier;ho fokotseha ha khanyetso ea mohanyetsi, mosebetsi o moholo ke oa hona joale, lerata le leholo la hona joale, ts'ebetso e mpe ea amplifier;ke lona lebaka le etsang hore lipotoloho tse ngata tsa amplification li be mashome a khanyetso ea K, ho hlokahala hore ho sebelisoe boleng bo boholo ba ho hanyetsa, kapa tšebeliso ea balateli ba motlakase, kapa tšebeliso ea marang-rang a T ho qoba.
Non-Inverting Amp
Ho nepahala ha mohanyetsi - ho nepahala ha mohanyetsi ho utloisisoa hantle, mona u se ke ua verbose.Ho nepahala ha mohanyetsi ka kakaretso ke 1% le 5%, ho nepahala ho isa ho 0.1%, joalo-joalo Theko ea 0.1% e ka bang makhetlo a leshome ho feta 1%, 'me 1% e ka ba makhetlo a 1.3 ho feta 5%.Ka kakaretso, khoutu e nepahetseng A=0.05%, B=0.1%, C=0.25%, D=0.5%, F=1%, G=2%, J=5%, K=10%, M=20%.
Matla a ka pele a mohanyetsi - matla a sehanyetsi a ka be a bile bonolo haholo, empa hangata ho le bonolo ho a sebelisa hampe.Mohlala, 2512 chip resistor, matla a quota ke 1W, ho ea ka litlhaloso tsa mohanyetsi, mocheso o feta likhato tse 70 tsa Celsius, mohanyetsi o lokela ho fokotsoa hore a sebelisoe.2512 chip resistor qetellong hore na matla a makae a ka sebelisoa, mocheso oa kamore, haeba li-pads tsa PCB ntle le phekolo e khethehileng ea ho senya mocheso, matla a 2512 chip resistor ho 0.3W, mocheso o ka ba ho feta 100 kapa esita le likhato tse 120 tsa Celsius..Ka mocheso oa likhato tse 125 tsa Celsius, ho ea ka mocheso o fokolang oa mocheso, matla a 2512 a hloka ho fokotsoa ho 30%.Boemo bona leha e le efe sephutheloana resistors lokela ho ela hloko, u se ke ua lumela ka lebitso la matla a, boemo senotlolo molemo ka ho fetisisa ho hlahloba habeli ho qoba ho siea mathata a patiloeng.
Resistor standstand voltage value - resistor standstand voltage value hangata ha e boleloe hanyane, haholo bakeng sa ba sa tsoa fihla, hangata ha ba na mohopolo o fokolang, ba nahana hore li-capacitor li na le boleng ba motlakase feela.Motlakase o ka sebelisoang lipheletsong tse peli tsa mohanyetsi, e 'ngoe e khethoa ke boholo ba matla, ho etsa bonnete ba hore matla ha a fete boholo ba matla, e' ngoe ke ho hanyetsa ha boleng ba motlakase oa resistor.Le hoja matla a 'mele oa resistor a sa fete matla a lekantsoeng, motlakase o phahameng haholo o ka lebisa ho se tsitseng ha mohanyetsi, creepage pakeng tsa li-resistor pins, le ho hlōleha ho hong, kahoo hoa hlokahala ho khetha mochine o lekaneng ho ea ka matla a sebelisoang.Tse ling tsa sephutheloana mamella litekanyetso tsa motlakase li kenyelletsa: 0603 = 50V, 0805 = 100V, 1206 ho 2512 = 200V, 1/4W plug-in = 250V.'Me, ts'ebeliso ea nako, motlakase oa mochini o hanyetsang o lokela ho ba o monyenyane ho feta tekanyo ea ho mamella matla a matla a fetang 20%, ho seng joalo ho bonolo ho ba le mathata ka mor'a nako e telele.
Mocheso oa mocheso oa ho hanyetsa - Mocheso oa mocheso oa ho hanyetsa ke parameter e hlalosang phetoho ea ho hanyetsa le mocheso.Sena se itšetlehile haholo-holo ka thepa ea resistor, ka kakaretso teteaneng filimi Chip resistor 0603 sephutheloana ka holimo ka etsa 100ppm / ℃, ho bolelang hore resistor ambient mocheso phetoho ea 25 likhato Celsius, ho hanyetsa boleng ka 'na fetoha ka 0.25%.Haeba e le 12bit ADC, phetoho ea 0.25% ke 10 LSB.Ka hona, bakeng sa op-amp e kang AD620, e itšetlehileng ka mohanyetsi o le mong feela ho fetola matlafatso, baenjiniere ba bangata ba khale ba ke ke ba e sebelisa bakeng sa boiketlo, ba tla sebelisa potoloho e tloaelehileng ho fetola matlafatso ka karolelano ea lihanyetsi tse peli.Ha bahanyetsi e le mofuta o tšoanang oa bahanyetsi, phetoho ea boleng ba ho hanyetsa e bakoang ke mocheso e ke ke ea tlisa phetoho ka karolelano, 'me potoloho e tla ba e tsitsitseng haholoanyane.Ka lisebelisoa tse nepahetseng tse hlokang ho nepahala, ho tla sebelisoa lihanyetsi tsa lifilimi tsa tšepe, ho hoholeha ha mocheso ho isa ho 10 ho isa ho 20ppm ho bonolo, empa ehlile, e boetse e theko e boima haholo.Ka bokhutšoanyane, lits'ebetsong tse nepahetseng tsa sehlopha sa lisebelisoa, mocheso oa mocheso ke ka sebele parameter ea bohlokoa haholo, ho hanyetsa ha hoa nepahala ho ka fetola litekanyetso sekolong, phetoho ea ho hanyetsa ka mocheso oa ka ntle ha e laoloe.
Sebopeho sa mohanyetsi - sebopeho sa mohanyetsi se feta, mona ho bua ka kopo e ka nahanoang.Mohanyetsi oa ho qala oa mochini o sebelisoa ka kakaretso ho tjhaja motlakase o moholo oa aluminium electrolytic, ebe o koala relay ho bulela matla ka mor'a ho tlatsa electrolytic ea aluminium.Mohanyetsi ona o hloka ho hana ho ts'oha, 'me ho molemo ho sebelisa mochine o moholo oa wirewound.Boholo ba matla a mohanyetsi ha bo bohlokoa haholo, empa matla a hang-hang a phahame, mme bahanyetsi ba tloaelehileng ba thata ho fihlela litlhoko.Lisebelisoa tse phahameng tsa motlakase, tse kang li-resistors tsa capacitor discharge, moo motlakase oa sebele oa ho sebetsa o fetang 500V, ho molemo ho sebelisa li-resistors tse phahameng tsa vitreous enamel ho e-na le lisebelisoa tse tloaelehileng tsa samente.Lisebelisoa tsa ho monya li-spike, joalo ka li-module tse laoloang ke silicon lipheletsong tse peli li hloka ho ts'oana le RC ho monya, ho etsa ts'ireletso ea dv/dt, ho molemo ho fihlella li-resistors tsa wirewound tse se nang inductive, e le ho ba le ts'ebetso e ntle ea ho monya ha li-spikes mme eseng habonolo. senyehile ka ho tshosa.
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