Isku-dhafka Wareegga IC Qaybaha Elektrooniga ah Iibiyaha Cusub & Asalka ee Adeegga Bom ee Qiimaha Wanaagsan
Sifooyinka Alaabta
| NOOCA | SHARAXA |
| Qaybta | Wareegyada isku dhafan (ICs) PMIC - Xakamaynta korantada - Xakamaynta beddelka DC DC |
| Mfr | Qalabka Texas |
| Taxane | FUDUD SWITCHER® |
| Xidhmada | Cajalad & Gariir (TR) Jaran Cajalad (CT) Digi-Reel® |
| SPQ | 75Tube |
| Xaaladda Alaabta | Firfircoon |
| Shaqada | Hoos-u-dhac |
| Habaynta wax soo saarka | Wanagsan |
| Topology | Buck |
| Nooca wax soo saarka | la hagaajin karo |
| Tirada Waxsoosaarka | 1 |
| Voltage - Gelida (min) | 4.3V |
| Voltage - Gelida (Max) | 60V |
| Voltage - Soo-saarka | 0.8V |
| Voltage - Wax soo saarka (Max) | 50V |
| Hadda - Wax-soo-saarka | 2A |
| Soo noqnoqda - Beddelka | 200kHz ~ 2.5Mhz |
| Dib-u-habayn isku xidhan | No |
| Heerkulka shaqada | -40°C ~ 125°C (TJ) |
| Nooca Koritaanka | Dusha sare |
| Xidhmada / Kiis | 8-PowerSOIC (0.154, 3.90mm ballac) |
| Xidhmada Aaladda Bixiyaha | 8-SO PowerPad |
| Lambarka Alaabta Saldhigga | LMR16020 |
Deegaankee?
Waa kuwee meelaha bedelaya sahayda korontada iyo sahayda laydhka toosan ee ku haboon
Beddelka sahayda korantada uma baahna transformer si uu toos ugu badalo korantada khadka AC una badalo danabka DC-ga ee ceyriinka ah una badalo calaamada AC ee soo noqnoqota oo aad u saraysa taas oo loo isticmaali doono wareegtada habaynta si loo dhaliyo danabkii loo baahnaa iyo hadda.
Naqshadaynta korontada tooska ah waxay khusaysaa danabka khadka AC korontadu waxay kor u qaadaysaa ama hoos u dhigtaa danabka ka hor inta aan lagu dabaqin wareegga xakamaynta.Maaddaama cabbirka beddelka uu si dadban u siman yahay inta jeer ee hawlgalka, tani waxay keeni kartaa koronto weyn oo culus.
Nooc kasta oo ka mid ah hawlgalka sahayda korontada ayaa leh faa'iidooyin iyo faa'iido darrooyinkiisa.Korontada beddesha ayaa 80 boqolkiiba ka yar kana fudud tan toosan ee u dhiganta, laakiin waxa ay dhalisaa buuq badan oo soo noqnoqda oo faragelin kara qalabka elektaroonigga ah.Si ka duwan sahayda korantada tooska ah, beddelidda sahayda korantadu waxay u adkeysan kartaa khasaaraha AC inta u dhaxaysa 10-20 ms iyada oo aan saameyn ku yeelan wax soo saarka.
Sahayda korantada tooska ah waxay u baahan tahay aaladaha semiconductor ee waaweyn si ay u xakameeyaan tamarta wax soo saarka sidaas darteedna ay dhaliyaan kulayl badan, taas oo yaraynaysa waxtarka tamarta.Wax soo saarka 24V, sahayda korantada tooska ah ayaa caadi ahaan ku saabsan 60 boqolkiiba wax ku ool ah, marka la barbar dhigo 80 boqolkiiba ama ka sareeya sahayda korantada qaabka beddelka.Sahayda korantada tooska ah waxay leeyihiin waqti jawaab celin ku meel gaar ah oo ka dhaqso badan kuwa dhigooda ah ee habka beddelka, taas oo muhiim u ah meelaha qaarkood.Caadi ahaan, sahayda korantada ee qaabka beddelka waa mid fudud oo cufan, taas oo ka dhigaysa kuwo ku habboon aaladaha la qaadi karo.Sahayda korantada toosan waxay ku haboontahay in lagu shubo wareegyada analooga sababtoo ah buuqa korantada oo hooseeya iyo sahlanaanta xakamaynta.
Cilladaha caadiga ah
Cillaadaha caadiga ah ee beddelka sahayda korontada.
Waa kuwee khaladka guud ee beddelka sahayda korontada?Cillad guud oo ka jirta beddelidda sahayda korontada waa beddelka transistor-ka laftiisa.Transistor gaabni waxa uu keenaa in xaddi badan oo hadda ah uu dhex maro transformerka oo uu afuufo fiyuuska.
Guuldarrooyinka transistor-ka waxaa badanaa keena capacitors xun.Soo hel capacitor filter-ka wax soo saarka oo barara ama soo daadanaya oo beddel capacitors kasta oo u muuqda mid xun.Si loo joojiyo fashilkan guud inuu mar kale dhaco, kapacitor shaandhada wax soo saarka waa in lagu beddelaa capacitor.Inta badan kuwa wax soo saara korantada uma rakibaan capacitors ESR hooseeya sida qalabkii asalka ahaa sababtoo ah waxay ka qaalisan yihiin kapaciitada caadiga ah.Si kastaba ha ahaatee, waxaa habboon in loo isticmaalo sida qaybaha beddelka maadaama ay si weyn u hagaajin doonaan nolosha tamarta korontada.
Diode failure waa dhibaato kale oo caadi ah.Waxa jira diodes badan oo ku jira sahayda korantada ee badasha oo hal diode oo xumaada waxa ay sababi kartaa in sahayda korontadu ay afuufto fiyuuska ama xidho.Diode-darrada caadiga ah waa wareeg gaaban oo ah +12 volt ama -5 volt rectifier.Guuldarrooyinkan qaarkood waxaa sababi kara isticmaalka +12 ama -5 wax soo saarka volt.Diode gelinta danabka sare ayaa sidoo kale laga yaabaa in la gaabiyo.
Ku saabsan Badeecada
LMR16020 waa 60 V, 2 A SIMPLE SWITCHER® hoos u dhigga nidaamiyaha oo leh MOSFET dhinac sare ah oo isku dhafan.Iyada oo kala duwanaansho ballaadhan oo ka bilaabma 4.3 V ilaa 60 V, waxay ku habboon tahay codsiyada kala duwan ee warshadaha ilaa baabuurta qaboojinta korantada ee ilaha aan sharciga ahayn.Xakamaynta xajinta hadda waa 40 µA qaabka hurdada, kaas oo ku habboon nidaamyada ku shaqeeya baytariyada.1 µA aadka u hooseeya ee hadda ku jira qaabka xidhitaanka ayaa sii dheerayn kara nolosha batteriga.Kala duwanaanta soo noqnoqoshada beddelka ee ballaaran ee la isku hagaajin karo waxay u oggolaaneysaa waxtarka ama cabbirka ka kooban dibadda in la hagaajiyo.Magdhawga wareegga gudaha macneheedu waa in isticmaaluhu uu xor ka yahay hawsha caajiska ah ee naqshadaynta magdhowga loop.Tani waxay sidoo kale yaraynaysaa qaybaha dibadda ee qalabka.Xaqiijinta awood gelinta waxay ogolaataa fududaynta xakamaynta nidaamiyaha iyo isku xigxiga awooda nidaamka.Qalabku waxa kale oo uu leeyahay sifooyin ilaalin ku dhex dhisan sida meerta-wareeg xadka hadda jira, dareemaha kulaylka iyo xidhitaanka koronto xad dhaaf ah awgeed, iyo soosaarka ilaalinta xad-dhaafka ah.
LMR16020 waxaa lagu heli karaa xirmo 8-pin HSOIC ah oo leh suuf daboolan oo iska caabbinta kulaylka hooseeya.
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