Tataiso ea ho qetela ho li-transformers: Lintlha tsa data, litšobotsi le likopo tsa bona
2023-12-01 7461

Catalog

The Lm317 ke seriti sa motlakase se sebelisoang khafetsa se potoloha ka har'a pokello, ka voltage ea eona e fapaneng.Mojali ona oa motsamaisi o na le boholo ba lits'ebeletso tsa elektroniki, tse kang lipotoloho tsa motlakase, tse kang lipotoloho tsa motlakase, tse kang lipotoloho tsa motlakase, tse kang lipotoloho tsa motlakase, lipotoloho Analov le lisebelisoa tse tharo.Lm317 e fana ka chelete e kenang ea ho kenya chelete ka ho rekisa phapano lipakeng tsa ho kenya

Lm317 ke eng?

LM317 ke mokhoa o ka sehloohong oa ho sebelisa chelete e ngata ea ho nka khato e tsitsitseng ea voltage ea ka hare, e lumellang ho hlophisoa ha voltage vrantage ea tlhahiso ka bahlaseli ba kantle.E sebelisoa hangata lipotoloho tse fapaneng tsa matla a matla, e fana ka tlhahiso e tsitsitseng ea motlakase, 'me ka mokhoa o hlakileng o sirelletsang lipotoloho tse latellanang tse tsoang lipotoloho tsa motlakase.

Picoucoucut ea LM317

LM317 Pinout

Setšoantšo sa 1: LM317 Picoucut

Ha a sheba setsebi sa motlakase se tsoang pele, pini ea pele ka ho le letšehali e adj, bohareng e felile, 'me PIN ea ho qetela e le le letona e le boima.

Ho kenya (VIN): VIN ke Pini e fumanang motlakase o tsoang ho tlatsetso ea motlakase o tla kenngwang.

Tlhahiso (vouut): VIN ke Pini e fanang ka tlhahiso e tsitsitseng.E tsamaisa voltage e ka tšoanelang, hangata e hokahane le mekotla e hlokang molao oa Voltage.

Phetoho (ad): adj ke pini e lumellang taolo holim'a tlhahiso ea voltage.Phini ena hangata e hokahane le moqapi ka kopanelo le pini e hlahisitsoeng ho beha voltage e lakatsehang.

Litšobotsi tsa LM317

Sebaka sa Voltage sa Bohlokoa: E fetoleloa ho tloha 1.25v ho ea ho 37V.

Bokhoni ba tlhahiso: e khonang ho fana ka 1.5a ea tlhahiso ea hajoale.

Ho se sebetse hantle ha voltage

Khoebo e kholo ea hona joale e sa tloaelehang: 2.2a.

Ho tsilatsilla mocheso: ho lula u tsitsitse har'a mocheso oa 0 ho la 125 ° C.

Ho paka: hangata e fumaneha ho-220, ST223 le ho ea-26, har'a ba bang.

Ho buloa ha ho khutlisa: hangata ho 0,1%.

Melaisi ea Line: Hangata ke 0,01% / v.

Karolo ea RESTON ea RESUTCLE: 80 DB.

Lenaneo la liphetoho tsa hona joale: Lits'ebetso tsa boleng bo tloaelehileng ho tloha ho 50μa ho ea 100nopoa.

Tšitiso ea mocheso ka ho feteletseng: Libaka tsa litlolo tsa mafura ho thibela tšenyo ka lebaka la ho feta.

Tšireletso ea potoloho: e kenyelletsa ho fokotsa maemo a morao-rao bakeng sa maemo a potoloho a nakoana.

Molao-motheo oa Ts'ebetso ea LM317

LM317Working Principle

Setšoantšo sa 2: Lm317 molao-motheo o sebetsang

Molao-motheo oa Litoro oa LM37 o potoloha ho lula o theohile litšila tse peli.E na le lithaba tse tsitsitseng tsa ka hare tsa boleng bo holimo, e leng Mananeo a bolelele ba 125, a sebetsang le benchema le ho fetola litheko tsa radical.Ka ho fetolela boleng ba R2, Voltage lipakeng tsa vout le Ad Ad Ad Ad Ad Ad Ad Ad a ba ka fetoloa, ka ho etsa joalo e ka fetola motlakase oa tlhahiso ho Vout.Ho ba teng ha bahlophisi C1 le C2 ho netefatsa ts'ebetso e tsitsitseng ea potoloho, ho fokotsa motlakase ea motlakase le lerata.Ka ho khetha boleng ka nepo bakeng sa boleng ba R1 le r2, basebelisi ba ka beha voltage e batlang e hlalositsoeng kae kapa kae ho tloha ho mashome a robeli a metso e 'maloa nakong ea boitlamo.

Ona ke monyetla oa motsamaisi oa phepo e kamehang ho se tšoane;O ka e tsamaisa ho voltage e 'ngoe le e' ngoe e ka har'a mofuta o tšehetsoeng oa Rangulator.

Tlhokomeliso: Captitor C1 le C2 li sebelisetsoa ho hloeka mela ea motlakase.C1 ke khetho ea boikhethelo 'me hangata e sebelisoa bakeng sa bohloeki bo bokhutšoanyane.Leha ho le joalo, C2 e hlokahala ha sesebelisoa se hole le baphaphathehi bofe kapa bofe ba ho sefa, kaha bo thusa ho hlatsa mehala ea motlakase nakong ea li-spikes tsa hona joale.

Palo ea ho hanyetsa / ea voltage bakeng sa lm317

LM317 Voltage Calculation Chart

Setšoantšo sa 3: LM317 Voltage Cachar Chart

U ka sebelisa foromo e latelang ho bala voltage ea ho hlahisoa (Vout) ea ho hlahisoa (e itšetlehileng ka boleng ba bahlaseli ba kantle R1 le r2.

Vout = 1.25v (1 + r2 / r1)

Ka tloaelo, boleng ba R1 bo hlophisitsoe ka ho oshms tse 240 (tse khothalelitsoeng), empa hape e ka beoa lipakeng tsa 100 le 1000.Ebe, o tlameha ho kenya boleng ba R2 ho etsa lipalo tsa Voltage ea tlhahiso.Maemong ana, haeba R2 e sebelisa 1000 ohms, formula e phethela ka tsela e latelang:

Vout = 1.25x (1 + 1 * 1000/240) = 6.453v

Ka mokhoa o ts'oanang, o ka bala boleng ba R2 a sebelisa mokhoa o tšoanang.Haeba u behile Voltage ea hau ea tlhahiso ea 10

10 = 1.25x (1 + r2 / 240) => r2 = 1680,000

Joale a re shebeng mohlala oa ho sebelisa LM317:

Setšoantšo se ka tlase se bonts'a motsamaisi oa LM37 o hokahaneng le potoloho, o ikemiselitse ho fana ka tlhahiso ea li-DC tsa DC bakeng sa potoloho.

LM317 Case Circuit

Setšoantšo sa 4: Potoloho ea liketsahalo tsa LM317

Potolohong ena, re eketsa mohloli oa voltage mohloli oa Vin oa motsamaisi oa The Viin oa molaoli.PIN ena e boetse e amohela lintlafatso tsa motlakase hape, tseo chip li tla li laola.Senype se kenang se kenya phini ena e tlameha ho ba phahameng ho feta ho voltage e tsoa.Leha ho le joalo, hlokomela hore mongoli o lokela ho phelisana feela le maemo a phahameng a mocheso a boemong bo itseng;Ha e hlahise ho hlahisa selekane se le seng.Kahoo, ho fihlela voltage Voltage Voltage, Vin e tlameha ho ba kholo ho feta Vout.

Potolohong ena, re hloka 5vdc e tsitsitseng ea 5vdc e le tlhahiso, ka hona, u tlameha ho ba motsamaisi oa motlakase oa ho kenyelletsa 2v.Ka hona, bakeng sa tlhahiso ea 5v, re ne re fepa 7 v ho radiantseng.

Ha re sebetsana le pini ea ho kenya, joale re fetela pele ho pini e ka fetohang (ej).Kaha re lakatsa ho hlahisoa ke tlhahiso ea 5 V, re tlameha ho bala hore na ke boleng bofe ba R2 bo tla hlahisa tlhahiso ea 5 V.

Sebelisa foromo ea Voltage ea Tlokotsi:

Vout = 1.25v (1 + r2 / r1)

Kaha R1 ke ohms 240, kahoo:

5v = 1.25v (1 + r2 / 2402), joale r2 = 720ω

Ka hona, ka boleng ba R2 Likarolong tsa R2 ho 720, haeba u fana ka voltage e kholo ho feta 5 v, LM317 e tla hlahisa 5V.

LM317 Wiring Diagram

Seane 5: Setšoantšo sa Wiring Wiring

Pini ea ho qetela ea LM317 ke phini e kentsoeng, le ho fana ka potoloho le ea Kholoudi e renang feela le pini e hlahisitsoeng.

Mokhoa oa ho sebelisa LM317

Karolo ea LM317 e laola phapang ea 125v lipakeng tsa tlhahiso le litheolelo.U ka fetola tlhahiso ka ho sebelisa mashano a mabeli a amanang pakeng tsa tlhahiso le lintja.

Ho feta moo, babusi ba babeli ba qholotsang ba ka hokahana potolohong ena.Sethala sena se thusa ho felisa ho khoptjoa ho sa hlokahale mme ho thibela lerata.

Mokoputsi oa 1uf a hokahane le tlhahiso e ntlafatsa karabelo ea nako.Ho feta moo, o ka e sebelisa e le mohoebi ea fapaneng ka ho tobetsa potentimeter ho pini e ka fetohang.

Bashebelli le lipetetso ba sebetsa 'moho ho theha phapang e ka bang khahlano e hlokahalang bakeng sa tlhahiso e ngolisitsoeng.

LM317 live circuit diagram

Sekhahla sa 6: Lm317 Live Poyction Cunt City

E lekanang ho LM317

Mefuta e meng ea ho LM372, LM7805, LM7806, LM7809, LM7809, LM7809, LM7809, LM7809, LM7809, LM7809, LM7809, LM7809, LM7809, LM7809, LM7809, LM7909, LM7905, LM7912, LM117V33, LM117VOP332r.

Mefuta e lekanang ho LM317: Lt1086, LM1117 (SMP), PB137

Mokhoa oa ho Sireletsa Potoloho LM317

Ho sireletsa potoloho ea LM317 ho bohlokoa ho thibela tšenyo.Ka lebaka la tšebeliso ea matla a matla a matla, likarolo li ka 'na tsa haola nakong ea ts'ebetso.Ka lebaka lena, li-sinks tsa mocheso li tloaetse ho sireletsa IC ho feta ho feta.Ntle le moo, ka lebaka la ho tlaase tsa seporofeta sa transraformer, ba ikarabellang ba ka ntle ba ka tsoa.Ka hona, li-diodes li eketsoa likopo tse ling ho thibela ho senyeha.

Diode D1 e sireletsa capucitor ka ho hlakola lipotoloho tse khutšoanyane, ha Diode D2 e ​​sebelisoa ho fana ka tsela ea ho hapa Cadcharge ho sireletsa CADSTJ nakong ea lipotoloho tse khutšoanyane.Ho fihlela karolelano e phahameng ea ho tsamaisa khatello ea khatello ea khatello ea khatello ea khatello ea maikutlo.

LM317 Protection Circuit Diagram

Setšoantšo sa 7: Lm317 Tšireletso ea potoloho ea setšoantšo

Ka kakaretso, LM317 ke ntho e tloaelehileng ea ho sebelisa chelete e sebetsang e fanang ka lithempare tse hlahisoang ke ho laola phapano lipakeng tsa kenyelletso le tlhahiso.Boikemisetso ba eona le lipara tse ling li thusa ka nepo le ho hlophisa chip ena ho fihlela botsitso ba matla le ho ts'epahala.

MABAPI LE RONA Khotsofalo ea bareki nako le nako.Lithahasello tsa ka bobeli le lithahasello tse tloaelehileng. ARIAT Tech o thehile ka nako e telele le ea tšebelisano e matla ea tšebelisano le bahlahisi le baemeli ba bangata. "Bokaholimo bohle bo tla hlahlojoa ntle le mathata le litsebi tsa ho feta
Teko ea ts'ebetso.Lihlahisoa tse phahameng ka ho fetisisa tsa theko e phahameng le ts'ebeletso e ntle ka ho fetisisa ke boitlamo ba rona ba ka ho sa feleng.

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