I-TL431 UMlawuli we-Voltage Geect
2024-04-17 16113

I-TL431 yisalathiso sokuchasana nesiphelo sendlela ezintathu ezidibeneyo chip ngozinzo lobushushu obulungileyo.Ngenxa yokuchaneka kwayo okuphakamileyo, quiescent yangoku ephantsi, kunye nengxolo yemveliso, isetyenziswa ngokubanzi kwizixhobo ze-elektroniki, ezinje ngolawulo oluzenzekelayo, ulawulo lwamandla kunye nokuguqulwa kwamandla.Ukunceda wonke umntu ukuba aqonde ngakumbi i-TL431, eli nqaku liqulunqe ulwazi olufanelekileyo malunga ne-TL431.Yiza ujonge.

Tl431 Ngaba i-2.50v kwi-38V yohlengahlengiso oluchanekileyo lweShunt ngokuhambelana nezixhobo zeTexas ezihlanganisiweyo zeTexasInokwazi ukuhlengahlengiswa kwemveliso yangoku kwaye isebenza njengomthombo wezimvo zeRetage.Uluhlu lwe-TL431 lubandakanya i-TL431C, tl431c, tl431i, tl431i, tl431i, tl431i, tl431m, tl43m, i-tl43m, itolika itotali.Ezi modeli zabelana ngesakhiwo sesekethe esifanayo esifanayo somehluko omncinci kuphela kwizalathi zezobugcisa.Ngenxa yobungakanani bayo obuhlanganisiweyo, i-voltage echanekileyo yesalathiso, kunye nemveliso enkulu yangoku, i-TL431 ingasetyenziselwa ukuyila iindidi zabalawuli.Iimpawu zayo zokusebenza zibandakanya ukwenziwa kwemveliso eQhelekileyo ukuya kwi-36V, ukuSebenza okuBanzi ngokusuka kwi-01MA ukuya kwi-100fu ukuya kwi-100fu kwi-0.22 Ohms, kunye nengxolo ye-OHMS.Ukongeza, inomphezulu we-37V, esebenzayo yangoku ye-150ma, i-voltage yangaphakathi ye-2.5V, kunye ne-voltage yemveliso isuka kwi-2.5V ukuya kwi-30v.

Ukuchaneka kwe-voltage yerejista ye-TL431 kungafikelela kwiipesenti ezi-2 okanye ngaphezulu, ukunika amandla ukubonelela ngombane oqingqiweyo nochanekileyo kuluhlu olubanzi lweevolthi.

I-TL431 ibonisa impendulo eguqukayo ngokukhawuleza.Inokulungelelanisa ngokukhawuleza i-voltage yemveliso ekuphenduleni kotshintsho lomthwalo wombane, qinisekisa ukukhutshwa kwamandla ozinzileyo.

Njengoko i-TL431 idibanisa i-Amplifier ye-Amplimier kunye nomthombo wemboniselo wokuzivocavoca, yenza lula uyilo lwesekethe, kunciphisa ubungakanani besekethe, kunye nethole lombane.

Imveliso yemveliso ye-TL431 inokuhlengahlengiswa kusetyenziswa abaqeqeshi babucala bangaphandle, ukubonelela ngohlengahlengiso ku-2,5v ukuya kwi-36v ukuya kwisekethe eyaneleyo.

Okwangoku, i-voltage, kunye neereyithi ze-Wattage zazo nasiphi na isixhobo sibonisa iimfuno zayo zamandla, i.e., malini, ukuba ingakanani na ivolthi eyoneleyo yokusebenza kwayo.Le theyibhile ilandelayo ibonelela ngoku, amandla, kunye neereyithi zevolthi ye-TL431.

Ukulinganisa ukuba ngaba ukusebenza kwe-TL431 kulungile, kufuneka sichonge izikhonkwane zayo njenge-terminal, i-anode, kunye nenkohliso.Emva kokuqinisekisa izikhonkwane, sinokulandela amanyathelo angezantsi ukulinganisa.Okokuqala, sihlengahlengisa uluhlu lwe-Multimeter kwibhloko ye-RXLK, qhagamshela ipeni emnyama kwi-anode, kunye nepeni ebomvu kwi-cathode.Eyona nto ilinganiswe ngeli xesha kukunyangeka phambili kwe-tl431.Okulandelayo, sitshintshana novavanyo sikhokelela, oko kukuthi, ipeni emnyama iqhagamshelwe kwi-Mathode kwaye ipeni ebomvu iqhagamshelwe kwi-Anode.Ngeli xesha, ukuxhathisa okungapheliyo kuya kufuneka kuboniswe.Oku kuthetha ukuba xa ihamba ihamba ihamba kwi-atode kwi-Mathode, i-TL431 ingavulwa ngesiqhelo;Kwaye xa ihamba ihamba ingena kwi-canode kwi-Canode kwi-anode, i-TL431 icinyiwe.Okulandelayo, sisagcina uluhlu lwe-Multimeter kwibhloko ye-RXLK, qhagamshela ipeni emnyama kwi-terminal, kunye nepeni ebomvu kwi-cathode.Ngeli xesha, akufuneki kubekho ukuba kuhamba ngoku, oko kukuthi, akukho nto ibonisa ngemitha.Ke, xa sichukumisa ipeni emnyama ngesandla esinye kunye ne-anode ngenye isandla, isikhombisi kufuneka sishukume kakhulu.Xa le meko ifezekiswa, iPIN ichukunyiswe ngesandla yindawo yesandla.Inyathelo lokugqibela lisekeke ikweka-thulini i-terminal yerejista kunye ne-Anode, oko kukuthi, vumela ukuba ungene kwi-terminal yesalathiso kunye ne-anode ngaxeshanye.Kule meko, ukuba isikhokelo sovavanyo lwabantsundu siqhagamshelwe kwi-Makhode kwaye isikhokelo sovavanyo olubomvu siqhagamshelwe kwi-Anode, kuya kuhlala kubekho i-voltage encinci;Kwelinye icala, ukuba i-County yovavanyo lwabantsundu iqhagamshelwe kwi-Anode kunye novavanyo olubomvu luqhagamshele kwi-Mathode, kuya kubakho ngokubanzi kwehla ivolli enkulu.Umgaqo-siseko wokulinganisa usekwe kwi-voltage eyahlukileyo ye-TL431 ngexesha lokunxibelelana kwakhona kunye nokubuyela umva.

I-Voltage ijonge

Isiphaluka seCrowbar

UMlawuli weShunt

Ukuchaneka komda wangoku

Umlawuli oPhezulu weShunt

I-PWM iguquli kwireferensi

Ukuchaneka komlawuli oPhezulu oPhezulu

I-TL431 inezikhonkwane ezintathu, eziyindawo ye-terminal, i-anode, kunye nenkohliso.Ukwahlula ezi zikhonkwane ezintathu, singazicwangcisa ukusuka ngasekhohlo ukuya ekunene kunye nelogo ejonge i-US.Ngokukodwa, i-terminal yereferensi yipin esetyenzisiweyo ukufaka igalelo kwi-voltage yesalathiso;I-Anode sisikhonkwane apho ukuhamba kwangoku;kwaye i-cathode ye-cathode yipini apho iphuma khona yangoku.Kwizicelo ezisebenzayo, i-Cathode idla iqhagamshelwe kwi-pole elungileyo yokuhambisa amandla ngokurhoxisa okwangoku, ngelixa i-Anode iqhagamshelwe kwi-pole engeyiyo yokuhambisa amandla.Umzobo wayo wePine ngolu hlobo lulandelayo:

IPIN 1 (ireferensi): Le pi icwangcisa i-voltage ye-lener diode.

IPIN 2 (Anode): I-Anode yeZenur

IPIN 3 (i-Cahode): I-Cathode ye-lener efanayo ye-diode

I-TL431 ngumlawuli opheleleyo ohlengahlengiso lweShunt ohlengahlengisiweyo ngozinzo oluhle kakhulu.Ihlala isetyenziswa njengereferensi yohlengahlengiso lwevolumu.Isakhiwo sayo sangaphandle sinezikhonkwane ezintathu: i-canode, i-anode, kunye ne-Relateres Funege.Ulwakhiwo lwangaphakathi lubonakalisiwe kumzobo.Kwizicelo ezininzi ze-TL431, i-anode ihlala iqhagamshelwe emhlabeni, kwaye isahlulo se-Cathoded Ukuhamba kwesipili kwikona yendawo esezantsi yomzobo webhlokhi.I-voltage iveliswe yile yangoku kwi-restem, kunye ne-voltage ihla phakathi kwesiseko B kunye ne-Emitter E yoThingisisayo, ngokudibeneyo zenza i-voltage ye-2.5V.Isakhiwo senqanaba eliphakathi le-TL431 lilingana nesekethe eyahlukileyo, ngelixa inqanaba layo lokuphuma lithanda umntu weDarlingun.Ke ngoko, i-TL431 ayingomsebenzi we-vortage odityanisiweyo ye-voltage kwaye ikwadibanisa nomsebenzi wesekethe ye-Amplifier.

Ngokwawo umsebenzi wayo, i-TL431 iqulathe ngaphakathi kwi-2.5v Voltage yeRegreet, i-op ye-op-AP-AP-APMOP, kunye nomqokeleli ovulekileyo.Umzobo olula we-TL431 uboniswe ngezantsi.Xa i-voltage kwi-voltage ye-voltage iphantsi kune-voltage yangaphakathi ye-2.5V, i-OP-AMP ikhuphe inqanaba eliphantsi, akukho xesha lihambayo kwi-TL43okwangoku);Kwaye xa i-voltage kwi-voltage ye-voltage iphezulu kune-voltage yangaphakathi, i-OP-AMP ikhuphe inqanaba eliphezulu, i-triode iqhuba kwaye ithathe i-Mathode, kwaye ingena kwingingqi ye-SATHEADE ngokukhawuleza.Kuphela kuxa i-voltage kwi-voltage ye-voltage isondele kakhulu kwi-voltage yerejista, i-triode izakusebenza kwindawo ye-Ambome, ukusuka kwi-Mathode ukukhuthaza okwangoku.Uhlalutyo lubonisa ukuba ekutshintsheni ukuhanjiswa kwamandla, ubume obuqala efuna ukuqonda kwe-voltage kunye ne-Op-Amp-Amp-Amp-AMP ngempendulo itshintshwe ngu-TL431.

Xa usebenzisa i-TL431, kufuneka sinikele ingqalelo kwezi zinto zilandelayo.

Ubuncinci bokuhamba kwe-TL431 kufuneka igcinwe ngaphezulu kwe-1ma, kungenjalo, iya kuphulukana nokusebenza kwe-voltage.Kwangelo xesha, ubuninzi bobuninzi abunakudlula kwi-100mma ukuphepha ukonakalisa i-TL431.

Ukususela ekubeni i-Viref yeRetage yangaphakathi ye-TL431 igcinwa yi-Mathode okwangoku, kwaye okwangoku kufuneka iphakame ngaphezulu komda othile wokuqinisekisa ukusebenza kwe-TL431 kwiukusika ilizwe, i-cathodede ifuna ukugcina ukubamba ngaphezulu kwe-0,2MA;Xa i-pole yemveliso ihamba, ivolthi phakathi kwezibonda kufuneka inkulu kune-2.2v ukuqinisekisa ukuba i-TL431 inokusebenza ngokuqhelekileyo.

Ukuthatha iphakheji eqhelekileyo ukuya kwi-92 njengomzekelo, eyona nto iphambili kuyo i-TL431 ngu-0.7w.Ngapha koko, ukuselwa kwaMandla P ye-TL431 kwi-TL431 kwisekethe kunokubalwa yifomula p = i-VO * i, apho i-voltiege yemveliso kwaye ndiyi-TL431.Ke ngoko, xa iziphumo zingadluli kwi-5V, i-TL431 ingayiphepha i-140ma;Xa i-voltage yemveliso i-7V, inokukhupha kuphela i-10ma ngenxa yokusetyenziswa kwamandla.Ngokwesiqhelo, ukusetyenziswa kwamandla kwe-TL431 i-0.5w ukuya kwi-1.2w.Xa isebenza phantsi kobushushu obuphezulu, iivoltage ephezulu okanye iimeko eziphakamileyo, kufuneka sinikele ingqalelo eyodwa kwi-ventilation, ukubekwa ngobushushu kunye nokukhuseleka kwesekethe yonke okanye ukonakala okubangelwe kukusetyenziswa kwamandla.

Xa ukhetha izixhobo kunye nokubeka ngaphandle, kufuneka sinike kuqala abaqeqeshwayo ngohlobo olufanayo nohlobo lwamaqondo obushushu, ingxolo ephantsi, kunye nobuchule obukhulu bokuqinisekisa ukuzinza kunye nokuthembeka kwamandla okuqinisekisa uzinzo kunye nokuthembeka kwamandla okuqinisekisa uzinzo kunye nokuthembeka kwamandla okuqinisekisa uzinzo kunye nokuthembeka kwamandla.Ngokwefomula v = 2.5 * (1 + R1 / R2), xa i-vob iphakathi kwe-R2 ukuya kwi-R2 i-R2 i-R1 ifanele ibe yi-16,4 amaxeshaI-R2 ye-R2.Ukongeza, ngenxa yenzuzo evulekileyo ye-loop kunye nesantya sokuphendula ngokukhawuleza kwe-TL431, xa inqaku lesampulu (loo nto, i-R2 kunye ne-R2) kukude kwizibonda zombini, i-R2 ixhaphakile kwi-Overhoot-uyolo.Ke ngoko, xa uyila nokusebenzisa, kufuneka sinike ingqalelo ekhethekileyo kwindawo yesampulu yokuphepha le meko.

Ewe, yi-lerner enokufikeleleka nge-diode.Imveliso yemveliso isusela kwi-2.5 i-volts ukuya kwi-36 volts.Ukunyamezelana kwevolimu yemveliso kuya kuba yi-4 pesenti.Imveliso yangoku okanye inyibiliki yangoku isusela kwi-1 ma ukuya kwi-100 ma.

I-TL431 yi-Shunt ye-Shunt ye-Shunt Shutege.I-TLV431 yireferensi ye-Voltage yeVolvage ye-TLV kodwa ikwanenkcazo ethile eyahlukileyo.

I-TL431 kwi-TL431 yoqwalaselo oluvulekileyo luhlala lusetyenziswa njengomnxibelelanisi wevoli, ukubek 'esweni kwe-vollollstage, i-overvolstage, i-overvolstage yekhethi, i-citcture ye-windows, kunye nezinye iintlobo ezininzi zokusebenzisa.I-TL431 yidilesi ye-vottage ye-Shunt esetyenziselwa ezi zicelo.

Xa i-TL431 yonakele, ukuba akukho kutshintshwe imodeli efanayo ye-KA431, μ131, i-LL431, i-S431, njl. Njl.

Izixhobo ze-TL431 kunye ne-TL432 zizixhobo ezintathu eziguquguqukayo, ngokuzinza kwe-surrm ezichaziweyo malunga nezithuthi ezisebenzayo, ezorhwebo, kunye neqondo lokushisa lomkhosi.I-voltage yemveliso inokusetwa kuyo nayiphi na ixabiso phakathi kwe-Vref (malunga ne-2.5 v) kunye ne-36 v, enabaphathi ababini bangaphandle.