Kungani sidinga ukwenza izimbobo zabalandeli PCB ukuklama kuqala?

Kunezinjongo ezimbili zezimbobo zabalandeli, ukubhoboza ukuze kungene isikhala futhi kuncishiswe indlela yokubuya!

Isibonelo, imbobo ye-GND, imbobo yabalandeli eseduze ingafinyelela inhloso yokunciphisa indlela!

Inhloso ye-pre-punching ukuvimbela imigodi ukuthi ingakwazi ukushaywa lapho i-wiring iminyene kakhulu ngemva kokuba izimbobo zingashaywa. Ulayini we-GND uxhumeke ebangeni elide, okuyindlela ende yokubuya.

Lokhu kuvame ukuhlangana nakho lapho kwenziwa idizayini ye-PCB enesivinini esikhulu kanye nomklamo we-PCB onezingqimba eziningi. Kulula kakhulu ukususa imbobo ngemva kokubhoboza ngaphambili. Ngokuphambene nalokho, kunzima kakhulu ukwengeza i-via ngemva kokuqeda ukuthungatha ucingo. Ngalesi sikhathi, umbono wakho ojwayelekile uwukuthola nje intambo ukuze uyixhume, futhi awukwazi ukucabangela i-SI yesiginali. Kuhambisana kakhulu nezinqubo ezijwayelekile.

Indlela yokwahlulela labo okufanele babe izimbobo zabalandeli?

Zombili zingaba izimbobo zabalandeli. Imigqa emifushane ingaxhunyaniswa ngokuqondile nongqimba olungaphezulu, futhi imigqa emide ingaba izimbobo zabalandeli ezihlangene. Lokhu kuwusizo olukhulu kubaklami be-PCB ekuhleleni nasekuhambiseni umzila, futhi imigqa ephumayo icocekile futhi mihle.

Izimbobo zabalandeli bomhlaba wonke ngaphambi kwesakhiwo se-PCB

1. Izimbobo zabalandeli ngokuphambene newashi noma ngokwewashi; izintambo ezimfushane zixhunywe ngokuqondile.

2. Isibonelo, ungaqala ekhoneni elingezansi kwesokunxele bese uxhuma ngqo ngomugqa omfushane. Intambo yamandla iqiniswa ngokuqondile. I-VIA-8-16mil.

shift+e ukuze ubambe isikhungo.

3. Ngobuhle, i-VIA iqondaniswe phezulu naphansi noma kwesokunxele nakwesokudla.

4. I-Crystal oscillator, isihlungi esimise okwe-π. Ungabi nakho ngokucubungula kumjikelezo we-crystal oscillator. Kubi ngesiginali. Bese ubhekana ne-crystal oscillator circuit.

5. Ukunikezwa kwamandla: i-vcc ne-GND inenombolo efanayo yama-vias.

6. Qaphela ubuqotho bendiza yaphansi lapho udlula emigodini. Kufanele kube khona indawo phakathi kwalezi zindlela ezimbili.