PCB njira yopangira zingwe

Mbali ziwiri PCB bolodi, pomwe kulumikizana kwadutsa, zingagwiritsidwe ntchito kuthana ndi zingwe zabwino ndi zoyipa. Mumapangidwe amtundu umodzi okha, mizere ina siyingalumikizidwe, nthawi zambiri imagwiritsa ntchito kulumikiza kwa jumper, mu oyamba kumene, kulumikiza kwa jumper nthawi zambiri kumakhala kosasunthika, motalika komanso kofupikira, komwe kumabweretsa zovuta pakupanga. Mukayika zingwe za jumper, zocheperako, zimakhala zabwino, nthawi zambiri zimangokhala 6mm, 8mm, 10mm atatu, kupitirira izi zimabweretsa zovuta pakupanga. Kuphatikiza apo, njira zotsatirazi zitha kugwiritsidwa ntchito kupangira mawaya kuti akwaniritse gawo la kulumikiza kwa jumper.

1, Onjezani mzere kapena zero ohmic kukana. Kulumikizidwa ndi waya mu bolodi la dera kumatchedwa mtanda, dera lomwelo ngati kutalika kwa mtanda sikunafanane kumakhudza mawonekedwe, kutalika kwa mizere yaying’ono ndi zinthu zazing’ono (monga kukana) zogwirizana bwino. Ngati kukhazikitsidwa kwa zero ohmic kukana ndikotsuka, kuti anthu asamve kukhalapo kwa mtanda.
2. Njira yolowetsa m’malo. Mwachitsanzo, ngati mtanda waya chikugwirizana angapo ndi 18K or resistor, kukana tsopano anasintha 15K ω, ndi 3K ω resistor waikidwa pa waya mtanda. Mtengo wake wonse ukadali 18K ω, ndipo waya wapaulendo waletsedwa.
3, kusindikiza kudutsa mzerewu. Gulu limodzi kuphatikiza mzere wosindikiza ukhoza kukwaniritsidwa pambuyo pa mtanda wolumikizana, koma mtengo wopangira bolodi yosindikiza udzakhala wokwera pang’ono.
4. Chifukwa cha kuchuluka kwa mizere yayitali komanso mzere wopapatiza, gawo la oyang’anira dera limafunika kukhala lokulirapo.