Kukhona “umthetho wokukhohlisa” we PCB izintambo, okungukuthi, ama-engeli acijile nama-engeli angakwesokudla kufanele kugwenywe ekwakhiweni kwe-PCB, futhi kungashiwo ukuthi lokhu sekungenye yezindinganiso zokukala ikhwalithi yezintambo, ngakho-ke kungani ungayi ama-engeli alungile ukuze uthole izintambo ze-PCB?

Kunemiphumela emithathu eyinhloko yokunyakaza kwe-engeli yesokudla kumasignali:

1. Ingalingana nomthwalo we-capacitive kulayini wokudlulisela futhi yehlise ijubane isikhathi sokukhuphuka.

2. Ukungaqhubeki kwe-Impedans kuzodala ukubonakaliswa kwesignali.

3. I-EMI ikhiqizwe ithiphu ye-Engeli engakwesokudla.

Empeleni, izintambo ze-PCB ziyi-Angle ebukhali, umugqa we-Angle ongakwesokudla uzokwenza ububanzi bomugqa wokushintsha komugqa wokudlulisa, okuholela ekunqanyulweni kokuvinjelwa, ukungaqhubeki kwe-impedance kuzobonisa. Ngokwe-amplitude nokulibaziseka kokucabanga, phakamisela phezulu ifomu yokushaywa kwe-pulse yoqobo ukuthola ifomathi yamaza, okuholele ekungahambini kahle kwe-impedance kanye nobuqotho besiginali obubi.

Ngenxa yokuthi kukhona ukuxhumeka, izikhonkwane zedivayisi, ukuhluka kobubanzi bezintambo, ukugoba kwezintambo, nezimbobo, ukumelana kuzodingeka kushintshe, ngakho-ke kuzoba nokuboniswa.

Ukuqondanisa i-engeli yesokudla akuthandeki ngempela, kodwa kufanele kugwenywe uma kungenzeka, ngoba ukunaka imininingwane kubalulekile kubo bonke onjiniyela abalungile. Futhi manje isekethe yedijithali ithuthuka ngokushesha, imvamisa yesiginali ezocutshungulwa ngokuzayo izokwanda kancane, la ma-engeli angakwesokudla angaba ukugxila kwenkinga.