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Ishingiro rya gnd mumirongo
Mu gihe cyaPCB IHURIROinzira, injeniyeri zizahura na GND.
Kuki ibyo bibaho? Mu cyiciro cyo gushushanya umuzunguruko, kugirango bigabanye kwivanga hagati yumuzunguruko, muri rusange bamenyekanisha insinga zitandukanye nka 0V yerekana imirongo itandukanye yimikorere, ikora ibihuha bitandukanye.
Ibyiciro bya GND insinga:
1.. Analog Cout Wire Apnd
Analog Count Wind Wing ikoreshwa cyane mugice cya Analog, nkumuzungu wa ADC ya Enclifizi ya Analog, Amplifier ya Amplifier, nibindi
Muri iyi cirreamice ya Analog, kubera ko ikimenyetso nikimenyetso cya Analog nigimenyetso gikomeye, bigira ingaruka byoroshye numutima munini windi muzunguruko. Niba bidahwitse, imigezi nini izabyara ibitonyanga binini bya voltage mumuzunguruko binini bya analog, bigatera ibimenyetso byerekana ibimenyetso byo kugorekwa kandi bishobora guteza umurimo wumuzunguruko wa Analog kugirango unanire.
2.. Ubutaka bwa Digital Grew DGND
Ubutaka bwa digitale insinga ya DGND, biragaragara ko ugereranije na Analog Cout Wind, ikoreshwa cyane mugice cya Digital Igice cyumuzunguruko, nkumuzunguruko urufunguzo, usb,Microcontroller Brouts, nibindi
Impamvu yo gushyiraho umuyoboro wa digite dgnd nuko umugenzuzi wa digitale ufite ibintu bisanzwe, bikaba byerekana ibimenyetso byerekana gusa "0" na "1", nkuko bigaragara ku gishushanyo gikurikira.
Mugihe cyo guhindura voltage guhindura kuva "0" kuri "1" cyangwa kuva "1" kugeza "0", voltage itanga impinduka. Dukurikije ibitekerezo bya Maxwellnetic, impinduka zijoro zizatanga ikibanza cya rukuruzi cya magneti hafi yayo, zikora imirasire ya EMC ku yindi mirongo.
Kugabanya ingaruka z'imirasire ya EMC ku muzunguruko, ubutaka butandukanye bwa Digital Cire DGND igomba gukoreshwa mu gutanga icyiciro cyiza ku yindi mirongo.
3. Imbaraga zubutaka pgnd
Yaba Analog arilog yubutaka bwinsinga cyangwa ububiko bwa digitale dgnd, byombi ni imizunguruko. Mu mpumuro nyinshi, nka moteri yo gutwara moto, hashyizweho valve ya valve yo gutwara, hari kandi insinga yihariye yitwa amashanyarazi.
Imigezi myinshi, nkuko izina ryerekana, ni imizunguruko hamwe ninzira nini ugereranije. Biragaragara, imigezi nini irashobora gutera gusa ubutaka hagati yimikorere itandukanyeimizunguruko.
Iyo habaye ubutaka mumuzunguruko, voltage 5V yumwimerere ntishobora kuba 5v ukundi, ahubwo ube 4v. Kuberako voltage ya 5V ugereranije na 0v Reba GND Gress Wire. Niba ubutaka butera gNnd kuzamuka kuva 0v kugeza 1V, noneho voltage 5V yabanjirije (5v -V = 5V) ihinduka 4V (5V) ubu.
4. Imbaraga zo gutanga ubutaka
Analog Cout Wire Apnd, Ubutaka bwa Digital Care DGND, hamwe na Power Wire PGND byose byashyizwe mubikorwa nka DC Ubutaka Gnd. Ubu bwoko butandukanye bwinsinga zubutakagomba gukusanyirizwa hamwe nka 0v Reba insinga yubutaka kumuzunguruko wose, yitwa amashanyarazi ahantu.
Amashanyarazi ni isoko yingufu kumizunguruko yose. Voltage yose hamwe nubu bisabwa kugirango umuzenguruko wo gukora avuye kumashanyarazi. Kubwibyo, ubutaka bwirabwo bwimbaraga ni 0V voltage yerekana imirongo yose.
Niyo mpamvu ubundi bwoko bwinzonga yubutaka, yaba Analog Cout Wire Apgen, Ubutaka bwa Digital Wire DGND cyangwa Imbaraga zubutaka
5. AC Yamaha CGND
Ubutaka bwa Ac Care CGNT iboneka mumuzunguruko hamwe namashanyarazi ac, nka AC-DC Imbaraga Zitanga Imbaraga.
Imirongo ya AC-DC Imbaraga Zigabanijwemo ibice bibiri. Icyiciro cyimbere cyumuzunguruko ni umuzunguruko w'abac, kandi icyicaro cyinyuma ni umuzunguruko wa DC, uhatirwa gushinga insinga ebyiri z'ubutaka, imwe ni insinga z'ubutaka, undi ni wire yo hasi.
Insinga yubutaka ya ac ikora nka 0v yerekana ingingo yumuzunguruko ya ac, hamwe na dc insinga ya dc ikora nka 0v yerekana ingingo yumugabane wa DC. Mubisanzwe, kugirango duhuze ubutaka bwatsi mumuzunguruko, injeniyeri azahuza insinga ya ac kuri wire yubutaka bwa DC binyuze mumikono cyangwa innguramu.
6. Isi Yisi Wire Egnd
Voltage yumutekano kumubiri wabantu iri munsi ya 36v. Niba voltage irenze 36v ikoreshwa kumubiri wumuntu, bizagirira nabi umubiri wumuntu. Uyu ni umutekano usanzwe kuba injeniyeri mugihe uteza imbere imishinga yumuriro.
Kuzamura ibintu byumutekano byumuzunguruko, injeniyeri muri rusange zikoresha isi yisi yiziritse mumishinga miremire kandi ifite imishinga iriho, nkibikoresho byo murugo nkabafana, na televiziyo, na televiziyo. Sock hamwe nikibazo cyo kurinda EGNT cyerekanwe kumashusho hepfo.
Impamvu ituma socket yo murugo ifite termits eshatu ni ukubera ko, nubwo 220v AC isaba gusa insinga n insinga zidafite aho zibogamiye, iy'isi irinda (egnd).
Imitwe yombi ikoreshwa munsi zabayeho kandi zidafite aho zibogamiye ku mbaraga 220v, mu gihe terminal ya gatatu ikora nk'isi irinda (egnd).
Ni ngombwa kumenya ko isi (egnd) ihujwe gusa ku isi kandi itanga uburinzi kuri voltage ndende. Ntabwo yitabira imikorere yumuzunguruko kandi ntaho ihuriye nimikorere yumuzunguruko.
Kubwibyo, isi igihugu (egnd) ifite akamaro kanini k'amashanyarazi avuye mu bundi bwoko bw'ubutaka (GND).
Gushakisha ihame rya GND:
Abashakashatsi barashobora kwibaza impamvu hariho byinshi bitandukanya cyane kubutaka (GND) guhuza n'impamvu bakeneye kumenyekanisha imikorere myinshi kuri GND.
Mubisanzwe, injeniyeri zorohereza izina rya GND kuri "GND" gusa utitaye kumigambi mirame, bigatuma bigora kumenya impamvu zitandukanye zumuziki mugihe cya PCB. Kubwibyo, guhuza gane byose bifitanye isano gusa.
Nubwo iki gikorwa cyororotse cyoroshye, biganisha ku bibazo byinshi:
1. Kwivanga ibimenyetso:
Niba ubutaka butandukanye bukora (GND) bifitanye isano neza, imigezi yingufu nyinshi zinyura mu butaka (GND) zirashobora kubangamira 0V Reba.
2. Ubwukuri:
Ku cyuma cya Analog, ukuri kw'ikimenyetso ni igipimo gikomeye. Gutakaza ukuri guteshuka agaciro k'umwimerere dukora imizunguruko ya Analog.
Ubutaka (CGND) yihindagurika rya AC mugihe cya sinioidal cyigihe, bigatuma voltage yayo ihindagurika. Bitandukanye na DC (GND), bikomeza guhora kuri 0V.
Iyo imirongo itandukanye (GND) ihujwe, ihindagurika rya cyclical yubutaka (CGND) rishobora kugira ingaruka ku mpinduka mubutaka bwa analog (thersnye), bityo bigira ingaruka kuri voltage ibimenyetso byibimenyetso bya analog.
3. EMCIgeragezwa:
Intege nke Ikimenyetso, intege nke zamateka yo hanze ya electromagnetic (EMC). Ikomeye ibimenyetso, bikomeye eNc yo hanze.
Niba ubutaka butandukanye (GND) bifitanye isano, ubutaka (gnd) bwumuzunguruko ukomeye wibimenyetso bibangamira ubutaka (gnd) bwumuzunguruko w'ikimenyetso. Kubwibyo, umuhanga mubimenyetso bya electrodugnetique (EMC) ibimenyetso bihinduka isoko ikomeye yimirasire ya electromagnetic kumurongo, bigatuma bitoroshye gukora ubushakashatsi bwa EMC.
4. Kwizerwa;
Ihuza rito hagati ya sisitemu yumuzunguruko, niko ubushobozi bwigenga bukora bwa buri muzunguruko. Ibinyuranye, niko amasano, intege nke ubushobozi bwigenga.
Reba sisitemu ebyiri zizunguruka, A na B, nta masangano. Imikorere ya sisitemu yumuzunguruko a ntagomba kugira ingaruka kumikorere isanzwe ya sisitemu yumuzunguruko b, naho ubundi.
Ibi birasa nabantu batazi, aho impinduka yamarangamutima yumuntu umwe ntabwo zigira ingaruka kubitekerezo byundi kuko nta sano.
Niba ubutaka butandukanye (GND) bifitanye isano muri sisitemu yumuzunguruko, yongeraho ihuriro ryiyongera hagati yumuzunguruko, bityo bikagabanya kwizerwa kubikorwa byumuzunguruko.
Shenzhen Anke PCB Co, ltd
Igihe cyohereza: Ukuboza-05-2023
