Waxaa jira xaddi badan oo resistor ah, sida caadiga ah waxaan guud ahaan ka walaacsanahay qiimaha, saxnaanta, qadarka awoodda, saddexdan tilmaame ayaa ku habboon.Waa run in wareegyada dhijitaalka ah, uma baahnid inaan fiiro gaar ah u yeelano faahfaahin badan, ka dib oo dhan, waxaa jira 1 iyo 0 oo keliya gudaha dhijitaalka ah, oo aan wax badan tirinayn saameynta yar yar.Laakiin wareegyada analoogga ah, marka aan isticmaalno isha korantada saxda ah, ama is beddelka analog-to-dijital ee calaamadaha, ama kor u qaad calaamadaha daciifka ah, isbeddel yar oo ku yimaada qiimaha iska caabinta ayaa yeelan doona saameyn weyn.In waqtiga garaaca la resistor ah, dabcan, waa in munaasabadda processing calaamadaha analoogga ah, iyo ka dib, sida ay codsiyada wareegga analoogga si ay u falanqeeyaan saamaynta parameter kasta oo resistor ah.
Qadarka qiimaha caabbinta ee caabbinta - qadarka qiimaha caabbinta ee xulashada iska caabbinta waxaa badanaa lagu hagaajiyaa codsiga, sida xaddidaadda nalalka LED-ka, ama muunad calaamadda hadda jirta, qiimaha caabbinta ee caabbinta asal ahaan ma jiro doorashooyin kale.Laakiin mararka qaarkood, waxaa jira noocyo kala duwan oo doorasho ah resistor ah, sida kordhinta signal danab ah, sida ku cad shaxanka, cod-weyneyn waxay la xiriirtaa saamiga R2 ilaa R3, oo wax shaqo ah kuma laha qiimaha R2 iyo R3.Waqtigan xaadirka ah, doorashada caabbinta caabbinta weli waxay ku saleysan tahay: inta badan caabbinta caabbinta, way sii weyn tahay sawaxanka kulaylka, ka sii daraya waxqabadka amplifier;Inta yar ee iska caabbinta iska caabinta, shaqadu waa weyn tahay hadda, way sii weyn tahay qaylada hadda, way ka sii xumaaneysaa waxqabadka cod-weyneyaasha;Tani waa sababta keentay in badan oo wareegyada cod-weyneyayaashu ay yihiin tobanaan K caabbinta, waxaa jira baahi loo qabo isticmaalka qiimaha caabbinta weyn, ama isticmaalka taageerayaasha korantada, ama isticmaalka shabakadaha T-ka si looga fogaado.
Amp aan rogrogin
Saxnimada iska caabinta - saxnaanta caabbinta si fiican ayaa loo fahmay, halkan ha ku hadlin.Saxnaanta iska caabintu guud ahaan waa 1% iyo 5%, sax ahaan ilaa 0.1%, iwm. Qiimaha 0.1% waxa uu ku dhow yahay toban jeer in ka badan 1%, 1% waa qiyaastii 1.3 jeer in ka badan 5%.Guud ahaan, code saxsan A=0.05%, B=0.1%, C=0.25%, D=0.5%, F=1%, G=2%, J=5%, K=10%, M=20%.
Awooda hore ee iska caabiyaha - awooda iska caabiyuhu waxay ahaan lahayd mid aad u fudud, laakiin inta badan way fududahay in si khaldan loo isticmaalo.Tusaale ahaan, 2512 chip resistor, awoodda kootada waa 1W, marka loo eego qeexitaannada caabiyaha, heerkulku wuxuu ka sarreeyaa 70 darajo Celsius, iska caabiyaha waa in la dhimaa si loo isticmaalo.2512 chip resistor dhamaadka intee in le'eg ayaa loo isticmaali karaa, heerkulka qolka, haddii suufka PCB oo aan lahayn daawaynta kulaylka gaarka ah, 2512 chip resistor power to 0.3W, heerkulku waxa laga yaabaa in ka badan 100 ama xataa 120 darajo Celsius..Heerkulka 125 darajo Celsius, marka loo eego qalooca heerkulku, cadadka 2512 awoodda ayaa loo baahan yahay in la dhimo ilaa 30%.Xaaladdan oo ku jirta xirmooyinka xirmooyinka kasta waxay u baahan yihiin inay fiiro gaar ah u yeeshaan, ha rumaysan awoodda magaca, booska muhiimka ah ayaa ugu fiican in la labanlaabo si looga fogaado dhibaatooyinka qarsoon.
Iska caabbinta qiimaha danab - iska caabiyaha u adkeysanaya qiimaha danab guud ahaan waa yar yahay in la sheego, gaar ahaan kuwa cusub, inta badan fikradda yar, iyagoo u malaynaya in capacitors kaliya u adkaysanayaan qiimaha danab.Volta-ga lagu dhejin karo labada daraf ee resistor, mid waxaa lagu go'aamiyaa xadiga awoodda, si loo hubiyo in korontadu aysan ka badneyn xadiga awoodda, kan kale waa caabbinta qiimaha korontada.In kasta oo awoodda jidhka iska caabbigu aanay ka badnayn awoodda la qiimeeyay, haddana korontadu oo aad u sarraysa waxay u horseedi kartaa xasillooni-darro, qulqulka u dhexeeya biinanka resistor-ka, iyo guul-darrooyinka kale, sidaa awgeed waa lagama maarmaan in la doorto iska caabiyaha macquulka ah iyadoo loo eegayo korantada la isticmaalo.Qaar ka mid ah xirmada u adkeysanaya qiimaha danab waxaa ka mid ah: 0603 = 50V, 0805 = 100V, 1206 to 2512 = 200V, 1/4W plug-in = 250V.Iyo, codsiyada waqtiga, danab on resistor waa in ay ka yar tahay kootada u adkeysanaya qiimaha danab ka badan 20%, haddii kale waa ay fududahay in ay dhibaato muddo dheer ka dib.
Heerkulka iska caabbinta - Heerkulka heerkulka iska caabbinta waa halbeeg qeexaya isbeddelka caabbinta heerkulka.Tan waxaa inta badan lagu go'aamiyaa walxaha resistor, guud ahaan dhumuc weyn film chip resistor 0603 xirmo kor ku xusan waxay samayn kartaa 100ppm / ℃, taasoo la micno ah in iska caabin heerkulka ambient isbedel 25 darajo Celsius, qiimaha iska caabbinta laga yaabaa in 0.25%.Haddii ay tahay 12bit ADC, 0.25% isbeddelku waa 10 LSB.Sidaa darteed, op-amp sida AD620, kaas oo ku tiirsan hal resistor oo keliya si loo hagaajiyo xoojinta, injineero badan oo hore uma isticmaali doonaan ku habboonaanta, waxay isticmaali doonaan wareegga caadiga ah si ay u hagaajiyaan xoojinta saamiga laba resistors.Marka resistors-ku ay isku mid yihiin iska caabiyeyaasha, isbeddelka qiimaha iska caabinta ee uu keeno heerkulku ma keenayo isbeddel ku yimaada saamiga, wareegguna wuxuu noqon doonaa mid xasilloon.Qalabka saxda ah ee loo baahan yahay, iska caabiyeyaasha filimka birta ah ayaa loo isticmaali doonaa, heerkulkooda 10 ilaa 20ppm waa sahlan tahay, laakiin dabcan, sidoo kale waa qaali.Marka la soo koobo, codsiyada saxda ah ee fasalka qalabka, heerkulka heerkulka ayaa hubaal ah inuu yahay halbeeg aad u muhiim ah, iska caabintu maaha mid sax ah waxay hagaajin kartaa xuduudaha dugsiga, isbeddelka caabbinta heerkulka dibadda lama xakameynayo.
Qaab dhismeedka iska caabinta - qaab-dhismeedka iska caabintu waa ka badan yahay, halkan in lagu xuso codsiga laga fikiri karo.Iska caabiyaha bilawga ah ee mishiinka guud ahaan waxaa loo isticmaalaa in lagu dallaco awoodda weyn ee aluminium electrolytic, ka dibna la xiro relay si uu u shido tamarta ka dib marka la buuxiyo aluminium electrolytic.Iska caabiyahani wuxuu u baahan yahay inuu noqdo mid shoog u adkaysta, waxaana fiican inaad isticmaasho iska caabin weyn oo xadhig ah.Qadarka awoodda iska caabintu maaha mid aad muhiim u ah, laakiin awoodda degdegga ah ayaa sarreeya, iyo iska caabiyeyaasha caadiga ah way adag tahay in ay buuxiyaan shuruudaha.Codsiyada danab sare, sida iska caabin ah dareeraha capacitor, halkaas oo danab hawlgalka dhabta ah ka badan 500V, waxa ugu wanaagsan in la isticmaalo resistors dhaldhalaalka vitreous danab sare halkii iska caabiyayaasha sibidhka caadiga ah.Codsiyada nuugista Spike, sida modules-ka silikoon ee labada darafba waxay u baahan yihiin inay barbar dhigaan RC si ay u sameeyaan nuugista, si ay u sameeyaan ilaalinta dv/dt, waxa ugu fiican in la gaadho iska caabiyeyaasha xadhigga silig aan wax tarayn, si loo helo waxqabadka nuugista wanaagsan ee caarada oo aan si fudud loo helin. shoog ay waxyeeleeyeen.
Xaqiiqooyin degdeg ah oo ku saabsan NeoDen
① La aasaasay 2010, 200+ shaqaale ah, 8000+ Sq.m.warshad
② Alaabooyinka NeoDen: Mashiinka PNP taxane Smart, NeoDen K1830, NeoDen4, NeoDen3V, NeoDen7, NeoDen6, TM220A, TM240A, TM245P, foornada dib-u-soo-celinta IN6, IN12, Alxan daabacaadda FP26406, PM3
③ Guulaystay 10000+ macaamiil aduunka oo dhan
④ 30+ Wakiilada Caalamiga ah ee lagu daboolay Aasiya, Yurub, Ameerika, Oceania iyo Afrika
⑤ Xarunta R&D: 3 waaxood oo R&D ah oo leh 25+ injineerro R&D ah oo xirfadlayaal ah
⑥ Waxaa ku taxan CE oo helay 50+ shatiyo
⑦ 30+ kontoroolka tayada iyo injineerada taageerada farsamada, 15+ iibka caalamiga ah ee sare, macaamiisha wakhtiga ku jawaabaya saacadaha 8, xalalka xirfadeed ee bixiya saacadaha 24
Waqtiga boostada: Meey-19-2022