Zener - waxa uu yahay waxan waa maxay, waayo?

Zener - diode waa Semiconductor leh sifooyin u gaar ah. Haddii Semiconductor caadi ah markii mid noqoshada dambe waa insulator ah, waxaa u qabata shaqada ilaa koritaanka gaar ah oo danab ku dalbatay, oo korkoodana waxaa burburka gebiyo karo dhacdaa. Iyada oo koror dheeraad ah ee socodka iyada oo danab zener dambe diode ayaa weli si joogta ah ay sabab u tahay hoos u saami iska caabin ah. Sidaas oo ay suurtagal tahay in la gaaro habka xasilinta this.

Marka xiran, zener ugu horeysay ka gudbayaan baxsiga yar hadda. Cunsurka u dhaqmo sida resistor ah oo qiimo iska caabin ah waa weyn. In burburka iska caabin zener uu noqdo mid laga samri karo. Haddii dheeraad ah sii wadaan si ay kor ugu danab talooyin ah, element ka bilaabaa inuu is kululeeyo iyo markii hadda ka badan qiimaha la ogolaan karo ee soo orday ah oo kagaara kaamerada. Haddii aan la keenay in, wax isbedel ah oo danab ka eber ilaa iyo xad sare oo ah guryaha meesha lagu shaqeeysto zener ceshan yihiin.

Markii si toos ah u wareegeen zener sifooyinka diode ma kala duwan yihiin diode ah. Marka xiran p-daray gobolka iyo jaray - in n-gobolka ee iska caabin ah kala guurka uu yahay mid yar oo hadda ku qubanayo dhex xor ah. Wuxuu u siyaadiyaa la danab aqbasho.

Zener - diode gaar ah, ku xiran inta badan gadaal. element First waa in gobolka u xiran yihiin. Marka an danab zener burburka korontada waxaa lagu hayaa si joogta ah in a kala duwan oo hadda waaweyn.

Ma bixisey si xun anode iyo cathode ah - oo lagu daray. Beyond xasilinta (dhibic 2 ee hoose) iyo kululaado ku kordhaya suurtagalka la cell failure.

sifooyinka

beegyada uu diode zener waa sida soo socota:

• U _v - danab xasilinta ee aan ku _v hadda _magacaaban,
• _Qodobka aan _Min - burburka ugu yaraan bilowday hadda korontada,
• Waxaan _{st max} - ugu badnaan la ogolaan karo hadda,
• TKN - Wehliyaha heerkulka.

Si ka duwan diode ee caadiga ah, diode zener ah - qalab Semiconductor ah, taas oo caan hadda-danab beerta burburka korontada iyo kaamerada ku yaalaan fog ku filan midba midka kale ka.

Iyada oo hadda ugu badnaan la ogolyahay ee ku soo koobin ee la xiriira, oo inta badan la siiyaa miisaska - dhereg xoogga,

_max P = waan _max ∙ U _{v v.}

Dadka Caadaystay heerkulka hawlgalka ee diode zener waxaa laga yaabaa in TKN togan ama taban. The xubno xidhiidh la isku xig xiga oo leh calaamado kala duwan ee horgalaha waa sax ma zener ku xiran kulaylinta ama qaboojinta.

Bannaanka

Jaantuska A caadiga ah ee stabilizer a fudud, ka kooban load boodo iska caabin waaya'aragnimo R _b iyo diode zener ah.

Xaaladaha qaarkood, waxaa jira xadgudub ah xasilinta.

1. infeed stabilizer danab weyn ka il awoodeed oo ay goobjoog ka ahaayeen capacitor filter wax soo saarka ah. Inrush hadda markii amraya keeni kartaa failure of diode zener ama burburinta resistor R ka _b.
2. Daadinta load. Marka codsatay in danab ku aqbasho ugu badan ee diode zener hadda ka badan waxaa laga yaabaa in la oggol taas oo u horseedi in ay burbur iyo kululaynta. Waxaa muhiim ah in la raaci meesha hawlgalka ammaan ah baasaboor.
3. The iska caabin R _b la doorto yar, sidaa darteed at qiimaha ugu hooseeya ee suuragalka ah danab sahayda iyo ugu badnaan la ogolyahay in load diode zener hadda waa in shaqada zone xeerka.

Si loo ilaaliyo stabilizer isticmaalay wareeggeedii ilaalinta thyristor ama fiyuusyada.

Resistor R _b waxaa la xisaabaa ayadoo formula ah:

R _b = (U _god - U _SG) (I _v + I _n).

Zener hadda waxaan _v waxaa loo doortay u dhexeeya badnaan iyo yaraan qiimaha la aqbali karo, taas oo ku xidhan danab aqbasho _god U iyo load waxaan _n hadda _ah.

Doorashada zener

Walxaha loo qabto kala duwanaansho weyn ee xasilinta danab ku. Si aad u hesho qiimo sax ah U _n, dioska- Zener ka Dufcaddii isku mid ah loo doortay. Waxaa jira noocyo kala duwan cidhiidhi ah ee koobin. At awood sare xubno ka dhereg badan dhajinta on hiitarka.

xogta aqbasho lagama maarmaanka u ah xisaabinta ee xuduudaha ka diode zener ah, tusaale ahaan, sida soo socota:

• U _Tirintii = 12-15 - danab la gelin;
• U _v = 9 - danab dejiyo;
• R _n = 50-100 MA - load.

Beegyada uu caan ku qalabka taagdarro awood yar yahay.

Waayo, danab a talooyin ugu yaraan 12 V, hadda at load ugu badan waxaa loo doortay - 100 MA. Sida uu qabo sharciga Ohm ayaa laga heli karaa miisaan guud ee silsiladda:

R _Σ = 12 V / 0.1 A = 120 ohms.

Dhibic danab Zener waa 9 V. In hadda ah 0.1 load A masaasad waa:

R _Equatorial = 9 V / 0.1 A = 90 ohms.

Haddaba waxaa suurtagal ah si loo ogaado iska caabin ah ee waaya'aragnimo ee:

R _B = 120 ohms - 90 ohms = 30 ohms.

Waxaa ka duwan caadiga ah halkaas oo qiimaha ku beegan tahay qiimaha xisaabiyaa soo xulay.

hadda ugu badan iyada oo loo marayo diode zener ah waxaa lagu go'aamiyaa iyadoo la tixgelinayo jarida load ah, in aysan ahayn mid ka mid ah si, haddii ay jiraan silig unsolder. dhibicda danab ee guud ahaan resistor waxay noqon doontaa:

U _R = 15 - 9 = 6 V.

Next, hadda ka dhex resistor:

Waxaan _R = 6/30 = 0.2 A.

Tan iyo diode zener ku xiran yahay ee taxanahan, waxa uu, _C I = waan _R = 0.2 A.

dhereg badan awood ahaan doonaa P = 0.2 ∙ 9 = 1.8 watts.

Sida laga soo xigtay beegyada uu ka helay doortay D815V a zener ku haboon.

zener symmetrical

DIAC waa qalab Beddelashada a, a tabinta talantaalli hadda. feature A ee uu shaqada waa in ay hoos u danab si dhowr volts markii daro kala duwan ee 30-50 V. Waxaa lagu beddeli karaa by labo zener caadiga oppositely ka mid ahaa. Qalabka waxaa loo isticmaalaa sida bedesheen xubno.

zener analoogga

Marka aadan heli karin element ku haboon, wuxuu isticmaalaa eegtahay of a transistors diode zener. Ay faa'iido waa wax macquul ah ee xeerka danab. Tani waxay khuseyn kartaa Sammeecado DC la marxaladaha kala duwan.

At qaybiye danab talooyin ah in la dhiso ee resistor falinjeeerka R1. Haddii danab talooyin ku kordhiyaa, iyadoo ay ku saleysan transistor ku VT1 waxaa sidoo kale sii kordhaya. Tani waxay kordhisaa hadda ku dhex transistor ku VT2, oo magdhow ah kororka danab ku, oon ku dayactirka ay saarka deggan.

Zener sixitaanka

Available in dioska- zener dhalooyinka iyo dioska- Zener guryaha caag ah. Xaaladda hore ay dalbatay tirooyinka 2, inta u dhaxaysa taas oo warqaddii V. Title 9V1 muujinaysaa in U _v = 9,1 V.

On caag ah fariimihii guryaha waxaa tarjunto isticmaalaya Xogeedka, halkaas oo aad ka heli kartaa fursadaha kale.

giraanta Dark on jidhka ka muuqata cathode ah, taas oo ku xiran oo lagu daray ah.

gunaanad

Zener - waxaa diode leh guryaha gaarka ah. Faa'iidada waa danab sharciyeynta Zener sare in ka badan kala duwan oo shaqo balaadhan oo ah kala duwanaansho hadda, iyo sidoo kale qorshaha la xidhiidha fudud. Si xasilin danab hoose qalab ka mid ah jihada hore, oo waxay bilaabayaan in ay ka shaqeeyaan dioska- sida caadiga ah.