LM317 jaangooyaha hadda hagaajin karo

Saddex-terminal LM317 jaangooyaha hagaajin bixisaa load hadda 100 MA. kala duwan oo danab saarka waa 1.2 ilaa 37 V. qalab waa mid aad u fududahay in la isticmaalo iyo waxay u baahan tahay kaliya labo ka mid ah resistors dibadda in ay bixiyaan danab wax soo saarka. Plus, xasilooni darro ee ku soo koobin shaqeeya leedahay fursado ka khayr badan lagu daydo u dhigma danab go'an sahayda ee wax soo saarka.

description

LM317 - danab iyo stabilizer hadda taas oo u shaqeeya xitaa marka riisanayo ADJ gacanta ku pin. In hawlgal caadi ah, qalabka uma baahna in lagugu xiro capacitor dheeraadka ah. marka laga reebo waxaa la sameeyey markii qalabka yahay meel fog ka badan ka filter korontada ee aasaasiga ah. Xaaladdan oo kale, loo xirxiro loo baahan yahay ee capacitor isku tallaalidda talooyin ah.

wax soo saarka ee analoogga ogol yahay si loo wanaajiyo waxqabadka LM317 jaangooyaha hadda. Sidaas darteed, kor u xoogga iyo qiimaha uu Cabidkariin transient of Wehliyaha yeeesha ah. Noocan oo kale ah tiro aan fiicnayn adag tahay in la gaaro in kale analogues saddex-terminal.

Ujeedada qalabka hoos tixgelin ma aha oo kaliya ee bedeli of xasiliya la tilmaame saarka go'an, laakiin tiro balaadhan oo ah codsiyada. Tusaale ahaan, LM317 jaangooyaha hadda loo isticmaali karaa wareeggeedii-awood sare. In nidaamka this unit shaqsi saamaysaa farqiga u dhexeeya danab talooyin iyo wax soo saarka. Operation qalabka hab this aan xad lahayn waxay sii wadan karaan, ilaa farqiga u dhexeeya labada heerka (iyo wixii soo baxayey danab ah) kama badna barta ugu badnaan la ogolyahay.

Features

Waxaa xusid mudan in LM317 jaangooyaha hadda ku haboon fudud qalab garaaca wadnaha hagaajin karo waa. Waxay waxaa loo isticmaali karaa sida stabilizer sax ah, ku xira resistor go'an u dhexeeya labada natiijo.

Abuuritaanka ilo sahayda sare ka hawlgala ee non-raagaya-wareeggeedii gaaban, suurto fiican tilmaame danab on saarka nidaamka ay gacanta ku. Barnaamijku wuxuu isaga ku hayaa galo si kala duwan ee 1.2 volts, in inta badan ee load waa mid aad u yar. Oo ah transistor danab LM317 jaangooyaha hadda lagu sameeyaa heer ILAA-lafaha 92 mode of heerkulka hawlgalka laga bilaabo -25 in +125 degrees Celsius.

sifooyinka

qalab viewed dhammaataan aduu design ee blocks fudud iyo sahay awood nidaaminaya. xuduudaheedu waa la sameyn karo oo saxo marka la eego load ah.

Steering hadda on LM317 stabilizer ku leedahay sifooyinka soo socda:

• kala duwan oo danab Output - 1.2 in 37 volts.
• load hadda waxay ugu badnaan - 1.5 A.
• Waxaa jira ilaalinta ah ka dhanka wareeggeedii gaaban.
• Waxaa jira circuit fiyuuska ka kululaado.
• baadi The on danab saarka ma aha in ka badan 0.1%.
• The guryaha IC chip - nooca ILAA-220, SI-3 ama D2PAK.

Wadista stabilizer hadda LM317

Sida inta badan sida qalab ee su'aasha waxaa loo isticmaalaa in sahay awood LED. Dheeraad ah u soo bandhigaysaa circuit fudud ah oo resistor iyo qori la shaqeysiin.

At aqbasho il awoodeed oo danab la bixisey, iyo xiriirka ugu weyn ee ku xiran yahay in wax soo saarka ee analog isticmaalaya resistor ah. Dheeraad ah, xulkii kaaga anode ee LED ah. The stabilizer ugu caansan LM317 circuit hadda sida in kor lagu sharaxay, wuxuu isticmaalaa formula soo socda: R = 1/25 / I. Halkee ayaan ka - waa qalab wax soo saarka hadda, ay kala duwan oo kala duwan oo u dhexeeya 0, 01-1.5 A. Resistor ogol yahay in tirada 0, 8-120 ohms. Ayuuna wixiisii resistor awood loo xisaabiyaa by formula ah: R = IxR (2).

macluumaadka laga heli waxaa lagu soo koobay. resistors go'an soo saaray oo leh iska caabin final faafinta yar. Tani waxay saamayn ku rasiidka ah tilmaamayaasha bixinta. Si loo xalliyo dhibaatada this, in nidaamka, xasilinta resistor awood dheeraad ah loo baahan yahay.

Faa'iidada iyo khasaaraha

Practice muujinaysaa in awoodda howlgalka of resistor ah waa ka fiican in la kordhiyo kala firidhsan size ee 30%, iyo in qol convection hooseeyo - at 50%. ka tiro ka mid ah faa'iidooyinka laga reebo, LM317 LED jaangooyaha hadda waxay leedahay cillado yar. Ka mid ah iyaga,

• oolnimada Small.
• Baahida loo qabo in kulaylka ka nidaamka ka saar.
• AC Xasilinta ka badan 20% qiimaha xadka.

Ka fogow dhibaatooyinka hawlgal qalabka isticmaali doonaa nidaamiyo bedesheen.

Waxaa xusid mudan in haddii aad rabto in aad ku xidhi-awood sare awood LED unit of 700 milliamps loo baahan yahay si ay u xisaabiso qiimaha formula: R = 1, 25/0, 7 = 1.78 ohms. dhereg Power noqon doono siday u kala horreeyaan 0, 88 watts.

xiriir

LM317 Xisaabinta jaangooyaha hadda ku salaysan dhawr hab oo la xidhiidha. Hoos waxaa ku qoran qorshayaasha aasaasiga ah,

1. Haddii aad isticmaasho a Q1 noocyada transistor xoogga, waxaad ka heli kartaa iyada oo aan la heatsink micro hadda wax soo saarka ee 100 MA. Waa ku filan tahay in la xakameeyo transistor ah. Sida net amaanka ka mas'uul xad-dhaaf ah D1 iyo D2 ah waxaa loo isticmaalaa dioska- ilaaliya, iyo capacitor ka barbar electrolytic ayaa shaqada si loo yareeyo buuqa asalka. Marka la isticmaalayo Q1 transistor ah, awoodda wax soo saarka ugu badan ee qalabka 125 Watts.
2. In design kale bixisaa sahayda hadda xadidan iyo hawlgal mid xasiloon oo uu Kokes. darawalka gaarka ah ee kuu ogolaanaya in aad awood u waxyaalaha aasaaska ah ee awoodda ka 0, 2 watts 25 volts.
3. In design kale codsatay danab hoos transformer ka variable network ka 220 watts 25 watts ah. Iyada oo taageero ka buundada diode ee AC danab waxaa loo beddelaa qiyaas joogto ah. Waxaa intaa dheer, oo dhan unu waxaa smoothed ay sabab u tahay nooca C1 capacitor in bixisaa qalliin xasiloon jaangooyaha danab ku.
4. The jaantuska taararka soo socda waa mid ka mid ah ugu sahlan ee. danab ka sare loogu fuuli jiray of transformer ee 24 volts bixisey, waxaa saxo halka iyada oo filter ka soo gudbeen oo waa la helay ee heerka bixinta joogto ah 80 volts. Tani waxay iska ilaalisaa in aad iyo aad u marinka danab sahayda ugu badan.

Waxaa xusid mudan in xeedho batari fudud ayaa sidoo kale la qaadi karaa oo ku saleysan chip hoostiisa tixgelinta qalabka. Waxa diyaariyey jaangooyaha toosan Heerka iyadoo tilmaame danab saarka hagaajin karo. In door ah oo la mid ah u shaqayn karaan qalab microassembly.

analogs

LM317 stabilizer awood badan leeyahay tiro ka mid ah analogues ee suuqyada gudaha iyo dibadda. The ugu caansan oo iyaga ka mid yihiin noocyada soo socda:

• KR142 beddelid Guriga iyo KR115 EN12 EN1.
• model GL317.
• Isbadalka SG31 iyo SG317.
• UC317T.
• ECG1900.
• SP900.
• LM31MDT.

Reviews

Sida uu war celin ka users daliil, jaangooyaha warbixintan u asiibi karo hawlihiisa. Gaar ahaan marka ay timaado xulkii waxyaabaha LED, danab si 50 volts. Nayaa dayactirka iyo hawlgal ka mid ah qalab iyo suurtagalnimada of hagaajinta xidhiidhka ee la wadago ee kala duwan. Cabashadooda on alaabta this waxaa laga heli karaa dareenka ah in kala duwan iyo sahayda danab soo saaray for isaga xeerarka xad kooban.

Dhamaadkii

Hagaajin stabilizer LM317 nooca muhiim waa fiican ee design ah oo sahay awood fudud, oo ay ku jiraan qaybaha iyo qaybo ka mid firaaqada qalabka elektarooniga ah, qalabaysan noocyo kala duwan oo xuduudaheedu wax soo saarka. Tani waxay noqon kartaa qalab loo dejiyay hadda iyo danab ama nidaaminaya tilmaamay sifooyinka. Si loogu fududeeyo xisaabinta, buuga ku jira stabilizer a calculator gaar ah wuxuu kuu ogolaanayaa inaad doorato nidaamka saxda ah iyo si loo ogaado suurtagalnimada of qabsado.