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Asalin GND a cikin da'irori
A lokacinPCB LineoutingTsarin aiki, injiniyoyi zasu fuskanci jiyya na GND.
Me yasa hakan yake faruwa? A cikin Tsarin Tsarin Kulla na Circuit, don rage tsangwomar juna tsakanin da'irori, injiniyoyi gabaɗaya gabatar da wayoyi na GND guda 0V.
Classantification na GND Box Wayoyi:
1. Analog Goney waya Agnd
Analog Geranger Anyi amfani da Agnd Analog a cikin Analog Circation Sashe na Analog, kamar da'awar adc na na'urori masu auna firikwenog, da sauransu.
A cikin waɗannan da'irar analog, tun lokacin da siginar sigina ne da kuma alamar sigina, ana iya shafawa da manyan rukunan sauran da'irori. Idan ba rarrabe, manyan igiyoyi za su samar da manyan ƙarfin lantarki a cikin yankin analog, yana haifar da siginar analog ta hanyar kasawa.
2. Digital Digital Dognd
Digital Dance Word Dgnd, a bayyane yake dangi a Analog Germation na Agnd, ana amfani da shi a cikin da'irar ganowa, da'irorin ganowa, Erictions Cirbacts,microctroller da'ira, da sauransu.
Dalilin kafa Digital Digiter Digit shine cewa da'irar dijital tana da fasalin gama gari, wanda kawai alamar canza hoto kawai kawai ke bambanta a cikin adadi a ƙasa.
Yayin aiwatar da aikin wutar lantarki daga "0" zuwa "1" ko daga "1" zuwa "0", ƙarfin lantarki yana haifar da canji. Dangane da ka'idar lantarki ta fixwromagnetic, canji na yanzu zai haifar da wani filin magnetic a kusa da shi, yana samar da radiation na EMC akan sauran da'irori.
Don rage tasirin radiation na EMC akan da'irori, ginin dijital na ƙasa Dangnd dole ne a yi amfani da shi don samar da ingantacciyar ƙwayar cuta ga wasu da'irori.
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Ko an analog ƙasa waya ta canzawa ko ƙasa ta dijital Dangd, dukansu masu ƙarancin wuta ne. A cikin manyan wutar lantarki, kamar ƙirar motoci da'irar da ke tattare da vawuyacin da'ira, akwai kuma keɓaɓɓiyar ƙasa wacce ake kira ƙasa waya ta pgnd.
Babban iko mai iyaka, kamar yadda sunan ya nuna, suna kewaya tare da manyan igiyoyi. Babu shakka, manyan rurtoci na iya haifar da sauƙi a cikin aiki tsakanin abu daban-dabanda'irori.
Da zarar an sami ƙasa a cikin da'irar, gashin kansa na 5V na ƙasa bazai zama 5V ba, amma ya zama 4V. Saboda wutar lantarki 5V tana da dangi da lambar GND ta 0V. Idan an kashe ƙasa da ke haifar da tashi daga 0V zuwa 1V, to 1v-0v = 5V) ya zama 4V (5v-1v = 4v) yanzu.
4. Ginin wutan lantarki
Analog Gone Gashi waya Agnd, Digital Digiri na DGND, da kuma ƙasa waya waya Pgnd duk an rarraba shi azaman DC ƙasa waya GND. Wadannan nau'ikan wayoyin ƙasa dole ne su tattara tare a matsayin Lambar Gasa na 0V don duka da'irar, da ake kira GND Power GND.
Wutar wutar lantarki ita ce tushen makamashi ga duk da'irori. Dukkanin wutar lantarki da ake buƙata na yau da kullun don aikin aiki suna daga wutar lantarki. Sabili da haka, da ƙasa waya tnd na wutar lantarki shine aya mai ƙarfin lantarki mai ƙarfin lantarki don duk da'irori.
Wannan shine dalilin da ya sa wasu nau'ikan wayoyi na ƙasa, ko sun kasance analogin analogir na zamani Agend, dole ne a tattara duka tare da Waya Waya Waya GND.
5. Ac Gasa waya CGND
Ana samun takamaiman waya ta AC a cikin da'irori tare da cires ɗin Power, kamar AC-DC Ikon Wuta Circuits.
AC-DC Power Wutan lantarki an raba kashi biyu. Mataki na gaban da'irar shine AC Cirbu, kuma mataki na baya shine waya DC.
Wire na AC AC yana aiki azaman lambar 0VV don yanki na Circuit, da Waya na DC Computer suna aiki azaman sashin 0Vv don yanki na da'ira na DC. Yawancin lokaci, don haɗa da GDD Word na Circuit a cikin da'irar, injiniyan za ta haɗu da wayar AC zuwa waya DC ta hanyar haɗin ƙasa ko Ingyawa.
6. Grandasa ƙasa waya Egnd
Tsaro na wutar lantarki don jikin mutum yana ƙasa da 36V. Idan wutar lantarki ta wuce 36v amfani ga jikin mutum, zai haifar da lahani ga jikin mutum. Wannan aminci ne na gama gari ga injiniyoyi lokacin da ke haɓaka ƙirar aikin cirir.
Don haɓaka ingantaccen aminci na da'irar, injiniyoyi gaba ɗaya suna amfani da ƙasa ta ƙasa waya, kamar kayan aikin gida, kamar su kayan aikin gida, masu sanyaya, da televisions. Ana nuna soket tare da aikin kariya na Egnd a cikin adadi a ƙasa.
Dalilin da yasa kayan aikin kayan aikin gida yana da tashoshi guda uku saboda, kodayake 220V AC kawai yana buƙatar waya mai rai da ƙasa mai tsaka-tsaki shine don ƙasa mai kariya (Egnd).
Ana amfani da tashoshin biyu don rayuwa da tsaka tsaki da wutar lantarki na 220v, yayin da takin na uku ke aiki a matsayin ƙasa mai kariya (Egnd).
Yana da mahimmanci a lura cewa ƙasa ƙasa (Egnd) an haɗa shi da ƙasa kuma yana samar da kariya daga manyan ƙarfin lantarki. Ba ya shiga cikin aikin da'ira kuma ba shi da alaƙa da aikin da'irar.
Sabili da haka, ƙasa ƙasa (Egnd) tana da mahimmancin mahimmancin lantarki daga wasu nau'ikan ƙasa (GND).
Binciken ƙa'idar GND:
Injiniya na iya yin mamakin dalilin da yasa akwai bambance-bambancen da yasa akwai alaƙa da haɗin ƙasa (GND) kuma me yasa suke buƙatar gabatar da ayyuka don gnd.
Yawancin lokaci, injiniyoyi suna sauƙaƙe ambaton GND haɗin don kawai "GND" ba tare da bambanci ba a cikin ƙirar zane-zane, yana da wahala a gano filaye masu rarrabe dabam dabam yayin aikin PCB. Sakamakon haka, ana haɗa duk haɗin haɗin Gnd Gnd.
Kodayake wannan saukin aiki ya dace, yana haifar da jerin matsaloli:
1. Kungiyoyin shiga:
Idan haɗin kai daban-daban (GND) haɗin haɗin haɗin kai tsaye ne da aka haɗa kai tsaye, da'irar da ke da ƙarfi suna tafiya cikin ƙaƙƙarfan iko, wanda ya haifar da sigina na ƙarfi tsakanin da'irori daban-daban.
2. Daidaito:
Don da'irar analog, daidaitaccen sigari shine ma'aunin kimantawa na mahimmanci. Rashin daidaito yana lalata ainihin mahimmancin aiki na Analog.
Groundasa (cgnd) na samar da wutar lantarki canzuka a cikin adireshin sinusiidal na lokaci-lokaci, yana haifar da ƙarfin lantarki da can ma. Ba kamar da DC ƙasa (GND), wanda ya kasance koyaushe a 0V.
Lokacin da haɗin da aka rarrabawa (GND) haɗin haɗin haɗin gwiwa ana haɗa shi, daidaituwar cyclical na AC ACH (CGND), ta hanyar canzawa daidai da sigina Analog.
3. EMCGwaji:
Mai rauni da siginar, mai rauni na hasken wuta na waje (EMC). Da karfi da siginar, da karfi da Enc na waje.
Idan an haɗa haɗin Ganyayyaki daban-daban (GND) haɗin haɗin kai, ƙasa (GND) mai ƙarfi alama ce ta kai tsaye tare da ƙasa (GND) na zagi siginar sigina. Sakamakon haka, asalin siginar hasken lantarki (EMC) ya zama tushen tushen lantarki zuwa waje, yana ƙara ƙalubalen kula da gwaje-gwajen EMC.
4. Clintiit aminci:
Kadan haɗin haɗin haɗin tsakanin tsarin da'ira, mafi girma da ikon yin aiki na kowane yanki. Hakanan, ƙarin haɗi, mai rauni mai ƙarfi na aiki mai zaman kansa.
Yi la'akari da tsarin yanki guda biyu, A da B, ba tare da duk wani shiga ba. Ayyukan tsarin da'ira ya kamata ya shafi aikin al'ada na tsarin da'ira B, da kuma mataimakin.
Wannan yayi kama da biyu daga baƙi, inda canje-canje na mutum ɗaya ba zai shafi yanayin ɗayan ba saboda ba su da wata alaƙa.
Idan haɗin ƙasa daban-daban (GND) ana haɗa shi tsakanin tsarin da'awa, yana ƙara haɗin haɗi tsakanin da'irori, don haka rage amincin aikin.
Shenzhen Anke PCB Co., Ltd
Lokaci: Dec-05-2023
