Imvamisa ukuzwa "isisekelo kubaluleke kakhulu", "kudingeka uqinise ukwakheka okuyisisekelo" nokunye. Eqinisweni, ekwakhekeni kwe-PCB ye-Booster DC / DC aguqulayo, ukwakhiwa okuyisisekelo ngaphandle kokucatshangelwa okwanele nokuphambuka emithethweni eyisisekelo yimbangela yenkinga yenkinga yenkinga yenkinga yenkinga yenkinga yenkinga yenkinga yenkinga yenkinga yenkinga. Yazi ukuthi lezi zindlela zokuphepha ezilandelayo zidinga ukulandelwa ngokuqinile. Ngaphezu kwalokho, lokhu kucatshangelwa akunqunyelwe kubaguquli be-BOOST DC / DC.
Ukuxhumana komhlaba
Okokuqala, isisekelo sama-analog esincane kanye nesisekelo samandla kufanele sihlukaniswe. Ngokuyinhloko, ukwakheka kwamandla aphansi akudingi ukuhlukaniswa kusuka kungqimba ephezulu ngokumelana okuphansi kwe-wiring kanye nokuhlanzeka okuhle kokushisa.
Uma isisekelo samandla sihlukaniswe futhi sixhunywe emhlane emgodini, imiphumela yokumelana nomgodi kanye ne-inductures, ukulahleka kanye nomsindo kuzokwenziwa. Ukuvikelwa, ukuhlukaniswa kokushisa kanye nokunciphisa ukulahleka kwe-DC, umkhuba wokusetha indawo engxenyeni engaphakathi noma emuva kuyisisekelo esisizayo.
Lapho ungqimba oluyisisekelo lwenzelwe ungqimba lwangaphakathi noma emuva kwebhodi yesekethe ye-multilayer, kufanele kubhekwe ukunakwa okukhethekile ekunikezelweni kwamandla anomsindo owengeziwe wokushintsha okuthe xaxa. Uma ungqimba lwesibili lunesendlalelo sokuxhuma amandla esenzelwe ukunciphisa ukulahleka kwe-DC, xhuma ungqimba oluphezulu kungqimba lwesibili usebenzisa izimbobo eziningi ukuze unciphise ukungcola komthombo wamandla.
Ngaphezu kwalokho, uma kunesimo esivamile esigangeni sesithathu kanye nesiginali esigcawini engxenyeni yesine, ukuxhumana phakathi kokubekwa kwamandla kanye nezendlalelo zamandla nesine kuphela kuxhumene nomsindo wokufaka phansi lapho kunesici sokufaka khona lapho. Ungaxhumi ukutholakala kwamandla kokukhipha okunomsindo noma ama-diode wamanje. Bona umdwebo wesigaba ngezansi.
Amaphuzu asemqoka:
Isakhiwo se-1.PCB sohlobo lwe-Booster DC / DC Converter, i-AGND ne-PGND badinga ukuhlukaniswa.
2.Imisekelo, i-PGND ekuhlelweni kwe-PCB ye-Booster DC / DC aguqulayo ilungiselelwe ezingeni eliphezulu ngaphandle kokuhlukana.
3.I-An Booster DC / DC Converter PCB Layout, uma i-PGND ihlukaniswe futhi ixhumeke emhlane ngomgodi, ukulahleka kanye nomsindo kuzokwenyuka ngenxa yomthelela wokumelana nomugqa.
I-PCB Isethi ye-PCB ye-Booster DC / DC Converter, lapho ibhodi yesekethe ye-multilayer ixhumeke emhlabathini engxenyeni engaphakathi noma emuva, naka ukuxhumeka phakathi kwe-terminal ephezulu yokushintsha okuphezulu kanye ne-PGND ye-dide.
5.Kukamephu we-PCB we-Booster DC / DC Converter, i-PGND ephezulu ixhumeke kwi-PGND yangaphakathi ngokusebenzisa izimbobo eziningi ukuze unciphise ukungcola nokulahleka kwe-DC
6.Kwenza i-PCB yesakhiwo se-booster DC / DC Converter, ukuxhumana phakathi komhlaba ojwayelekile noma indawo yesiginali ne-PGND kufanele kwenziwe e-PGND eduze komsindo omncane wokuphuma kokushintsha okuthe xaxa kokushintshana okuphezulu, hhayi kwi-terminal yokufaka eduzane ne-diode.