1. Idan da yawa PCB ƙasa, SGND, AGND, GND, da dai sauransu, ya zama dole a yi amfani da “ƙasa” mafi mahimmanci a matsayin abin da ake nufi da shafa jan ƙarfe da kansa gwargwadon matsayin hukumar PCB daban -daban. Abu ne mai sauƙi a faɗi cewa ana amfani da ƙasa ta dijital da ƙasa analog daban don murfin jan karfe. 5.0V, 3.3V, da dai sauransu Ta wannan hanyar, an samar da juzu’in sifofi masu siffa daban -daban.

2, don haɗin madaidaiciya guda ɗaya, hanya ta hanyar juriya 0 ohms ko beads magnetic ko haɗin inductance;

3, crystal oscillator kusa da murfin tagulla, crystal oscillator a cikin da’irar shine madaidaicin fitowar mitar, hanya ita ce ta kewaye murfin murfin oscillator na jan ƙarfe, sannan kuma harsashin crystal oscillator daban daban ya yi ƙasa.

4, matsalar tsibirin (yankin da ya mutu), idan yana da girma sosai, to ayyana rami don ƙarawa ba matsala bace.

5, a farkon wayoyi, yakamata ya zama ƙasa mai daidaita ƙasa, lokacin da waya ya yi kyau, ba zai iya dogaro da murfin jan ƙarfe ta hanyar ƙara ramuka don kawar da haɗin fil, wannan tasirin yana da kyau ƙwarai.

6, a cikin jirgi ya fi kyau ba da Angle mai kaifi (= digiri 180), saboda daga mahangar electromagnetism, wannan ya zama eriya mai watsawa!

7, Layer mai yawa da yawa na yankin buɗe wayoyi, kar a yi amfani da jan ƙarfe. Domin yana da matukar wahala a sanya wannan fakitin jan ƙarfe “mai kyau”.

8, ƙarfe da ke cikin kayan aiki, kamar radiator na ƙarfe, tsararren ƙarfe na ƙarfe, dole ne ya sami “kyakkyawan tushe”.

9, mai sarrafa tashoshi uku na toshewar ƙarfe na ƙarfe, dole ne ya zama kyakkyawan tushe. Bel ɗin keɓewa na ƙasa kusa da oscillator crystal dole ne ya kasance yana da tushe. A takaice: murfin jan ƙarfe akan PCB, idan an magance matsalar ƙasa sosai, tabbas “mafi kyau fiye da mara kyau”, zai iya rage yankin komawar layin siginar, rage tsangwama na lantarki na waje.