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Nuxurka GND ee wareegga
Intii lagu gudajirayDib-u-habeynta PCBGeedi socodka, injineerada ayaa wajihi doona daweynta kala duwan ee GND.
Muxuu taasi u dhacaa? Marka laga hadlayo wareegga qaabeynta wareegga, si loo yareeyo faragalinta labada dhinac ee ka dhexeysa wareegyada, injineerada guud ahaan waxay soo bandhigayaan fiilooyinka dhulka ka kala duwan ee GND oo ah goobaha tixraaca ee 0V ee loo yaqaan '0V' oo loo yaqaan '0V' oo loo adeegsado wareegyada firfircoon ee kaladuwan, sameynta loopsyo kaladuwan oo kala duwan.
Kala-saaridda fiilooyinka dhulka ee GND:
1. Xarig analog ah oo ah AGND
Silica salka analog Agnd waxaa inta badan loo isticmaalaa qaybta wareegga analog, sida wareejinta ADC ee ku saabsan dareenka dareemayaasha analog, wareejinta qiiqa wadanka, iwm.
Wareeggan analog, maadaama astaantu ay tahay calaamad analog ah iyo calaamad daciif ah, waxaa si fudud u saameeya haraaga waaweyn ee wareegga kale. Haddii aan la kala garan, hambalyada waaweyn waxay soo saari doonaan dhibcaha korantada waaweyn ee wareega analogga, taasoo keenaysa in seenyaalaha analogga ah in lagu margado oo suurtagal u horseedi karo howsha wareegga analog si ay u fashilmaan.
2. Silica dhijitaalka dijitaalka ah ee DGND
Wire ee dhijitaalka ah ee DELND DGND, sida muuqata qaraabada sicirka Wire ee aagga Analog Agnd AGND, waxaa badanaa loo isticmaalaa qaybta wareegga dhijitaalka ah, sida wareegga muhiimka ah ee ogaanshaha, wareegga isgaarsiinta ee USB,wareegga microcontroller wareegyada, iwm.
Sababta loo dejinayo Wire ee Digital Del-ka DGND waa in wareegga dijitaalka ah ay leeyihiin astaamo guud, oo ah kuwa ugu caqliga leh ee loo beddelo oo keliya oo keliya kala soocaya inta u dhexeysa "0" iyo "1", sida ku cad shaxanka hoose.
Intii lagu gudajiray hanaanka korantada ee beddelaadda "0" ilaa "1" ama ka "1" "" "" 0 ", korantada, korantada waxay soo saartaa isbedel. Sida ku xusan aragtida hore ee Electromagnetic, isbeddelka hadda jira wuxuu soo saari doonaa goob magnetic oo ku wareegsan, sameynta shucaaca EMC ee ku saabsan wareegyada kale.
Si loo yareeyo saameynta shucaaca EMC ee ku saabsan wareegyada, silig gaar ah oo dijital ah oo ah DGND DGND waa in loo adeegsadaa in lagu bixiyo go'doomin wax ku ool ah oo loogu talagalay wareegga kale.
3. Xirmooyinka dhulka ee Pown Pgnd
Haddii ay tahay analog dhulka sicirka salka ama silig dhijitaalka ah ee dijitaalka ah DGND, iyagu waa labada dhinac ee korantada hoose. Wareegtada korantada sare, sida gogosha baabuurta sare, tuubada elektaroonigga ah ee elektaroonigga ah ayaa kaxayn kara wareegga dhiigga, sidoo kale waxaa jira silic qoto dheer oo loo yaqaan 'silig dhulka loo yaqaan' Pown dhulka 'ee PGND PGND.
Wareega korantada sare, maadaama magacu soo jeedinayo, ay yihiin wareegyo badan oo leh marinno aad u tiro badan. Sida iska cad, harooyinka waaweyn waxay si fudud u sababi karaan dhulka dhexdooda ka dhexeysa howsha kala duwanwareeg.
Mar waxaa jira dhul ka soo baxa wareegga, korantada 5-aad ee asliga ah waxaa laga yaabaa inaysan mar dambe noqon 5V mar dambe, laakiin noqo 4V. Sababtoo ah 5V-ga 5-aad ayaa qaraabo ah oo loo yaqaan 'The Tixraaca Wire' ee 'GND' ee 'GND dhulka'. Haddii dhulku uu sababayo in GND ay ka kacdo 0V illaa 1V, markaa korantada 5-aad ee hore (5v-0v = 5V) wuxuu noqdaa 4V (5V-1V) hadda.
4. Korantada Koronto ee Xirmooyinka Gelinta Gelinta Gun
Silica salka analog, silig dhigta digada dijital ah ee DGND, iyo safka sare ee korantada ee 'PGND' oo dhammaantood lagu tilmaamay inay tahay DC Dhul DC Dalka GND. Noocyadan noocyada kala duwan ee fiilooyinka dhulka waa in loo soo ururiyaa sidii siligga loo tixraacayo 0V ee wareegga oo dhan ee wareegga, oo loo yaqaanno korantada silig salka qaranka GND.
Awoodda korantada waa isha tamarta ee dhammaan wareegyada. All korantada iyo hadda loo baahan yahay wareegga si ay uga shaqeeyaan waxay ka soo jeedaan korantada. Sidaa darteed, siligyada dhulka ee GND ee korantada waa barta tixraaca korantada ee 0V ee'V 'ee dhammaan wareegyada.
Tani waa sababta noocyada kale ee fiilooyinka dhulka, haddii ay yihiin xuduudaha analog, silig, silig, silig koronto DGND ama korantada lagu soo aruuriyo siligga dhulka korantada ee GND.
5. AC Dhulka CORE CGND
CORES DALKA CODKA CGND ee CGND guud ahaan waxaa laga helaa wareegyo leh ilo koronto oo ac ah, sida wareegga korantada AC-DC.
Wareegtada korantada ee AC-DC waxay u qaybsan yihiin laba qaybood. Marxaladda hore ee wareegga waa wareegga, iyo marxaladda dambe waa wareegga DC, kaas oo lagu qasbay inuu sameeyo laba fiilo oo dhulka ah, midna waa siligga dhulka dushiisa, kan kalena waa silig dhulka DC.
Silica dhulka ee 'AC' waxay u shaqeysaa sida ugu dhakhsaha badan ee loo tixraacayo '0V' ee qaybta wareegga ee AC, iyo sicirka dhulka DC-da ee loo yaqaan 'DC dhulka' waxay u adeegtaa sida TAGAALKA TIXRAACA EE DC SUNGE SUCUTE. Badanaa, si loo mideeyo silig dhulka GND ee wareegga, injineerka ayaa ku xiri doona Wire Dalka AC siligga DC ee ka dib iyada oo loo marayo isku-darka dafka ama afgambiga.
6. Xariiqda dhulka dhulka ah
Korontada badbaadada ee loogu talagalay jirka bini aadamka ayaa ka hooseeya 36V. Haddii korantada ay ka badan tahay 36V oo lagu dabaqay jirka bini aadamka, waxay u horseedi doontaa waxyeelo jirka bini aadamka. Tani waa dareen nabadgelyo caadi ah oo loogu talagalay injineerada markii la korayo naqshadaha mashruuca wareega.
Si kor loogu qaado qodobka badbaadada ee wareegga, injineerada guud ahaan waxay u isticmaalaan silig dhulka dhulka ah tufta korantada iyo mashaariicda hadda jira, sida qalabka guryaha ee hadda jira sida taageerayaasha korantada, qaboojiyaha, iyo telefishanada. Socho-ga leh shaqada Ilaalinta ee ENND waxaa lagu muujiyey shaxanka hoose.
Sababta Sababta loogu talagalay Saddex meelood oo ay leeyihiin saddex geesood ayaa ah, in kasta oo 220v AC Power ay u baahan tahay oo keliya silig nool iyo xargaha saddexaad, terminalka saddexaad waa in dhulka ka ilaaliyo (EGND).
Labada nooc ayaa loo isticmaalaa fiilooyinka nool ee ruushka ah ee ruushka ah ee awooda 220v, halka geedka saddexaad uu u adeego sida dhulka dhulka ka ilaaliya (EGND).
Waxaa muhiim ah in la ogaado in dhulka dhulka (EGND) ay ku xiran tahay dhulka oo ay ka difaacdo korantada sare. Kama qeybqaato waxqabadka wareegga oo aan lala xiriirin shaqada wareegga.
Sidaa darteed, dhulka dhulka (EGND) waxay leedahay muhiimad koronto oo gaar ah oo ka socota noocyada kale ee isku xirka (GND).
Sahaminta mabda'a ee GND:
Injineerada ayaa laga yaabaa inay la yaabi karaan sababta ay u kala duwanaan karaan isku xirnaanta dhulka (GND) iyo sababta ay ugu baahan yihiin inay soo bandhigaan howlo badan oo loogu talagalay GND.
Badanaa, injineerada ayaa fududeynaysa magaca isku xirka GND ee kaliya "GND" iyada oo aan la kala saarin naqshadeynta qorsheysan, taasoo adkeyneysa in la aqoonsado sababo shaqo oo kala duwan oo ku saabsan qaabeynta PCB. Sidaas awgeed, dhammaan xiriirada GND-ka ayaa si fudud iskuxiran.
In kasta oo howlgalkan la fududeeyay uu ku habboon yahay, waxay u horseedaa dhibaatooyin taxane ah:
1. Faragelinta calaamadaha:
Haddii iskuxirno kala duwan oo shaqeynaya (GND) si toos ah u la isku xidhan yahay, wareegga korantada sare ee ku safraya dhulka (GND) ayaa faragelin ku sameyn kara barta tixraaca 0V (GND) ee kudhaca wareegga awoodda-korantada, taasoo dhalisay isbadal ku dhex jira wareegga kala duwan ee u dhexeeya wareegyada kaladuwan.
2. Saxnaanta calaamadaha:
Wareegtada analogga, saxsanaanta calaamadaynta waa qatar qiimeyn muhiim ah. In laga soo dareemo saxsanaanta ayaa wax u dhimaysa muhiimadda ay ku shaqeyso asalka u ah wareegga analog.
Dhulka (cGND) ee bixinta korantada ee AC ayaa isbeddelaysa hirar ku dhaca sinsisidal xilli xilliyeed, taasoo keenta korantada si ay u beddelaan sidoo kale. Si ka duwan DC-da DC (GND), oo weli joogto ah 0V.
Marka iskuxirka wareegga wareega (GND) ay isku xidhaan, isbedelka isku-dhafka ah ee dhulka AC (CGND) waxay saameyn ku yeelan kartaa isbedelada ku dhaca dhulka analog (Agnd), taas oo saameyn ku yeelanaysa saxsanaanta korantada ee calaamadaha analogga.
3. EMCTijaabi:
Kuwa daciifka ah ee calaamadda, kuwa tabarta daran ee shucaaca korantada dibedda ee electromagnetic (EMC). The adag oo ka xoog badan seenyaalaha, kuwa ka xoog badan EMC dibedda.
Haddii iskuxirka wareegga wareega (GND) ay isku xidhaan, dhulka (GND) ee wareejinta adag ee si toos ah ayaa si toos ah u faragelisa dhulka (GND) ee wareegga calaamadaha daciifka ah. Sidaas awgeed, sida ay asal u tahay shucaaca korantada ee 'EMC' (EMC) Sintral waxay noqotaa isha adag ee shucaaca elektaroonigga ah ee dibedda ah, taasoo ka dhigeysa mid adag oo adag in la maareeyo tijaabooyinka EMC.
4. Isku-darka wareega:
Xiriiryada yar ee ka dhexeeya nidaamyada wareegga, ayaa sii badanaya awooda hawl-galka madaxbanaan ee wareegga kasta. Waxaa taa ka duwan, xiriirinta badan, kuwa daciifka ah awooda hawl-galka madax-bannaan.
Tixgeli laba nidaam oo wareega, a iyo b, oo aan wax isgoys ah. Waxqabadka Nidaamka Wareegtada A waa inaysan saameyn ku yeelan qaliin caadi ah ee hawlgalka caadiga ah ee nidaamka wareega b, iyo dhanka kale.
Tani waxay la mid tahay lammaane oo shisheeye ah, halkaas oo isbedelka shucuureed ee hal qof uusan saameyn ku yeelan doonin niyadda qofka kale sababtoo ah xiriir ma laha.
Haddii iskuxirka wareegga wareega (GND) ay iskuxiran yihiin nidaamka wareegga, waxay ku dartay isku xirka isku xirka oo kordhisa faragalinta faragelinta ka dhexeysa wareegyada, sidaa darteed yareynta isku halaynta hawlgalka wareegga.
Shenzhen canke pcb co., ltd
Waqtiga Post: Dec-05-2023
