Iingxaki kufuneka ziqwalaselwe xa iiplagi zifakwaINdibano yePCBinkqubo

Amacandelo ePCB kufuneka akhethwe ngokuchanekileyo kwindawo yokuhlangabezana neemfuno zomsebenzi wesekethe.Kufuneka kuqatshelwe ukuba umda wombane obuthathaka wamacandelo anomsebenzi ofanayo, imodeli kunye nababoneleli abahlukeneyo banokuba nomahluko omkhulu.Ke, zeziphi iingxaki ekufuneka sinikele ingqalelo kuzo xa sifaka amacandelo kwi-PCB?

1. Ukunciphisa imveliso yangoku ukunqanda isiphumo sokutshixa sesekethe yeCMOS

I-lock-in isiphumo yindlela ekhethekileyo yokusilela kwisekethe ye-CMOS, kuba kukho i-parasitic PNP transistor kunye ne-NPN transistor kwisakhiwo sangaphakathi sesekethe ye-CMOS, kwaye benza i-parasitic PNPN thyristor structure, ngoko ke i-lock-in isiphumo se-CMOS sesekethe. ikwabizwa ngokuba yi "thyristor effect".

2. Ukusebenzisa uthungelwano lokucoca

Ngamanye amaxesha intambo yokufaka ende iyafuneka phakathi kwenkqubo yesekethe yeCMOS kunye noqhagamshelwano ngoomatshini, nto leyo eyandisa amathuba okuphazamiseka kwe-electromagnetic.Ngoko ke, inethiwekhi yokucoca kufuneka ithathelwe ingqalelo.

3. Inethiwekhi yeRC

Apho kunokwenzeka, kwigalelo elibuthathaka lezixhobo ze-bipolar, uthungelwano lwe-RC olunezixhasi ezinoxhathiso olukhulu kunye neecapacitors ezinobuncinci be-100pF zinokunciphisa impembelelo yokukhutshwa kwe-electrostatic.

4. Ukuphepha isikhonkwane setyhubhu ye-CMOS imisiwe.

Kuphephe ukuba isiphelo segalelo lesixhobo seCMOS esithengiswa kwibhodi yesekethe simisiwe.Kwangaxeshanye, kufuneka ingqalelo zonke ezingeyomfuneko igalelo kwisixhobo CMOS abavumelekanga ukuba inqunyanyiswe.Kuba xa igalelo linqunyanyisiwe, igalelo elinokubakho liya kuba kwimeko engazinzanga.

Oku kungasentla sisishwankathelo seengxaki ekufuneka ziqwalaselwe kwinkqubo yokufaka amacandelo kwi-PCB.Ndiyathemba ukuba iya kuba luncedo kuwe.Ukufumana iinkcukacha ezithe vetshe, nceda undwendwele iwebhusayithi yethu www.pcbfuture.com