LM317 chinjika ano regulator

Three-chinouraya chinjika regulator LM317 kunopa kuitika mutoro 100 Ma. goho voltage siyana ndiyo 1,2 kusvika 37 V. The mudziyo uri nyore chaizvo kushandisa uye kunoda peya imwe nechitarisiko resistors kuti anopa goho voltage chete. Plus, kuti kusagadzikana pakati kushanda parameters ane nzira nani pane akafanana yokutevedzera ane wakaiswa romugove voltage panguva goho.

tsananguro

LM317 - voltage uye ano stabilizer iyo chinoshanda kunyange apo vasingadiwi kudzora Pin adj. Chaiye mashandiro, mudziyo hakudi kuti kwakabatana kune mamwe capacitor. An Kunze unoitwa kana mudziyo iri rebei kubva chikuru simba zvitengeswa firita. Panyaya iyi, iyo inodiwa kugadzwa mazano yokunzvenga capacitor.

The goho of analogue anobvumira kuvandudza mabasa ano regulator LM317. Somugumisiro, kwakawedzerwa uye zvinopfuura ripple kukosha rimire coefficient. Kwakadaro Zvakanyanya Kunaka Panguva Yepamuviri mufananidzo zvakaoma kubudirira mune dzimwe-inouraya matatu analogues.

Chinangwa mudziyo pasi kukurukurwa harisi chete yaitsiva stabilizers vane yakamisirwa goho chakarurama, asi kuti-siyana mafomu. Somuenzaniso, LM317 ano regulator inogona kushandiswa kumusoro-simba matunhu. Munyika ino nomumwe chikwata unochinja kusiyana kwezvavakaisa goho voltage. Mudzimu mudziyo iri nzira iyi irambe nokusingaperi, kusvikira kusiyana prices maviri (mazano uye goho voltage) hakurevi kusapfuudza vaifanira zvinobvumidzwa pfungwa.

Features

Zvinokosha kucherechedza kuti LM317 ano regulator zvakakodzera nyore chinjika kufamba kweropa chiridzwa. Vanogona kushandiswa senzira zvakarurama stabilizer, kuburikidza yakamisirwa resistor pakati outputs maviri.

Kutanga yechipiri zvitengeswa manyuko uchishanda panguva non-yakasimba pfupi-nematunhu, kunounzwa optimizing ari voltage chinoratidza pamusoro nokudzora hurongwa goho. Chirongwa kunoita naye pamusuo kuwanda 1,2 volts, nokuti vazhinji mutoro zvikuru duku. Uye kuitika regulator LM317 voltage transistor anoitwa mune mwero TO-marangwanda 92 kwadzinoita anodawo tembiricha kubvira -25 kusvika +125 Celsius.

zvinoitwa

Viewed huchashandiswa zvakakwana wakanyatsokodzera yokugadzira nyore kutigumbura nokudzorwa simba zvokuyamura. The parameters anogona kuiswa uye kururamiswa ouzivi mutoro.

Gozvo pari pamusoro stabilizer LM317 ane zvinotevera unhu:

• Output voltage Range - kubva 1,2 kusvika 37 volts.
• The mutoro razvino kuti vaifanira - 1.5 A.
• Pane kudzivirira nematunhu pfupi.
• Kune fiyuzi redunhu kubva overheating.
• Kukanganisa pamusoro goho voltage haasi kupfuura 0.1%.
• Dzimba IC Chip - mhando TO-220, TO-3 kana D2PAK.

Driving ano stabilizer nokuda LM317

Pose mudziyo mune mubvunzo rinoshandiswa akatungamirira simba rinopiwa. Uyezve nayo kupa dunhu nyore umo resistor uye Chip iri kusashanda.

At mazano simba panobva voltage riri mbuva, uye mukuru kuonana zvakabatana kune analoginen goho achishandisa resistor. Uyezve, aggregation kunoitika pamwe anode yacho akatungamirira. The kupfuura mukurumbira ano wedunhu LM317 stabilizer sezvinotaurwa kumusoro, anoshandisa mutoo: R = 1/25 / I. Where I - ndiye mudziyo goho ano, ayo siyana kunosiyana-siyana pakati 0, 01-1.5 A. Resistor zvaibvumirwa hukuru 0, 8-120 ohms. Akaparadza simba resistor rinowanikwa kubudikidza nzira: R = IxR (2).

Mashoko ndawana ari vakagumisa. Fixed resistors anobudiswa neboka duku kupararira chokupedzisira nemishonga. Izvi zvinokanganisa risiti kuti muripo zviratidzo. Kugadzirisa dambudziko iri, riri zano, chimwezve pakudzikamisa resistor zvaida simba.

Zvayakanakira nezvayakaipira

Practice inoratidza kuti nokushanda nesimba resistor dzichiwedzera kukura akapararira panguva 30%, uye pasi convection mupanda nani - pa 50%. Kunze dzinoverengeka zvakanaka, LM317 akatungamirira ano regulator ane zvainovhiringidzawo shoma. Pakati pavo:

• Small kunyatsoshanda.
• Kudikanwa kubvisa kupisa kubva hurongwa.
• AC Kudzikamiswa pamusoro 20% of muganhu ukoshi.

Dzivisa matambudziko nokushanda mudziyo achashandisa nokuchinja regulators.

Zvinokosha kucherechedza kuti kana uchida kubatanidza yakakwirira-simba akatungamirira chikwata inokwana 700 milliamps hunodiwa kuverenga kukosha payakavakirwa: R = 1, 25/0, 7 = 1.78 ohms. Power nounzenza achava azvaitwa 0, 88 watts or.

kubatanidza

Kukarukureta LM317 ano regulator kwakavakirwa nzira wandei maererano. Pazasi pane dzinokosha mazano:

1. Kana ukashandisa simba transistor mhando Q1, unogona kuwana vasina heatsink micro goho kuitika 100 Ma. Zvaringana kudzora transistor. Somunhu yakachengeteka mambure rokurara mutariri D1 uye D2 anoshandiswa unodzivirira diodes, uye yakafanana electrolytic capacitor ane basa kuderedza necheseri ruzha. Kana tichishandisa transistor Q1, kufadza goho anokwanisa mudziyo 125 Watts.
2. Mune imwe magadzirirwo kunopa shoma kuitika zvitengeswa uye irambe kushanda LEDs. Special mutyairi unokubvumira simba chinobatanidza vanokwanisa kubva 0, 2 watts or 25 volts.
3. Mune imwe magadzirirwo akashandisa voltage achideredza transformer kubva zvakarukwa shanduka kubva 220 watts or 25 watts or. Tichibatsirwa ari diode zambuko AC voltage iri kuva chiyero zvachose. Uyezve, zvikanganiso zvose vari ndokudzora nokuda capacitor C1 mhando kuti anopa akatsiga nokushanda voltage regulator.
4. Zvinotevera wiring dhayagiramu mumwe nyore. The voltage akapa kubva yechipiri ichitenderera pamusoro transformer pa 24 volts, iri kunogadzirisika apo nomunyika Sefa uye inotengwa iri issuance mwero chenguva 80 volts. Izvi haambotauri kwazvo kufadza romugove voltage pachikumbaridzo.

Zvinokosha kucherechedza kuti nyore bhatiri mundiro zvinogonawo inounganidzwa maererano chip fari pasi pokukurukura mudziyo. Vakazvigadzirirwa mureza Linear regulator ane chinjika goho voltage chakarurama. In yakafanana basa anogona kushanda microassembly mudziyo.

analogs

Simba stabilizer LM317 ane nhamba analogues mudzimai uye kumisika. The kupfuura nomukurumbira vavo ndedzinotevera pezvitsiga:

• Domestic nadzurudzo KR142 uye KR115 EN12 EN1.
• GL317 womuenzaniso.
• Variations SG31 uye SG317.
• UC317T.
• ECG1900.
• SP900.
• LM31MDT.

Reviews

Sezvinoratidzwa inofambiswa kubva vanoshandisa, kuti nhau regulator kuzvigona mabasa ayo. Kunyanya kana toreva aggregation pamwe akatungamirira okunze, kuti voltage kusvika 50 volts. Nyore yokuzvigadzirisa uye nokushanda huchashandiswa uye mukana nokugadzirisa kubatana mune zvirongwa zvakasiyana. Gripe pamusoro chigadzirwa ichi chichiitwa mupfungwa kuti siyana uye romugove voltage wakabudiswa kwaari muganhu mitemo shoma.

Pamugumo

Adjustable stabilizer chinokosha mhando LM317 rakanakira magadzirirwe nyore simba rinopiwa, kusanganisira zvinoriumba uye kupembedza pagondobwe zvemagetsi zvokushandisa, akashongedzerwa siyana goho parameters. Kombiyuta inogona akafanorongerwa kuitika uye voltage kana yaidzorwa akaratidza unhu. Nokuti vakasununguka kubva kukarukureta, kuti Chinyorwa rine rinokosha karukureta stabilizer unokubvumira kusarudza zvakarurama zano uye kuona mukana achichinja.