Decoupling capacitors yog siv txhawm rau lim tawm qhov hluav taws xob tawm hluav taws xob thiab dhau los ntawm tsuas yog DC tivthaiv ntawm lub teeb liab. Lub tswv yim yog siv lub capacitor nyob rau hauv xws li ib txoj kev uas nws shunts, los yog absorbs lub suab nrov ua lub DC teeb liab kom du li sai tau.
Vim li cas decoupling capacitor siv?
Ib tug decoupling capacitor, kuj hu ua ib tug bypass capacitor, ua raws li ib yam ntawm lub zog reservoir. … Yog hais tias qhov input voltage poob, ces ib tug decoupling capacitor yuav muaj peev xwm muab lub hwj chim txaus rau ib tug IC kom lub voltage ruaj khov.
Kuv puas xav tau cov capacitors decoupling?
Zoo heev txhua tus IC yuav tsum muaj lub capacitor decoupling. Yog tias tsis muaj dab tsi tau teev tseg los ntawm daim ntawv teev npe, qhov tsawg kawg nkaus, muab 0.1 uF ceramic cap ze ntawm lub hwj chim tus pin ntawm IC, ntsuas tsawg kawg ob zaug ntawm qhov hluav taws xob uas koj siv. Ntau yam yuav xav tau ntau dua capacitance ntawm cov tswv yim.
Lub hom phiaj ntawm kev siv cov khoom siv hluav taws xob hauv PCB yog dab tsi?
Lub decoupling ua haujlwm raws li a reservoir thiab ua nyob rau hauv ob txoj hauv kev kom stabilize qhov voltage. Thaum qhov voltage nce siab tshaj tus nqi ntsuas, lub decoupling capacitor absorbs cov nqi ntau dhau. Lub caij no, lub decoupling capacitor tso tawm cov nqi thaum lub zog poob kom ntseeg tau tias cov khoom ruaj khov.
Koj tso lub tshuab hluav taws xob nyob qhov twg?
Decoupling capacitors yuav tsum muab tso ze li sai tau rau qhov chaw rau lub teeb liab yogdecoupled. Qhov no txhais tau hais tias ntawm tus pin rau ICs thiab ze ntawm lub connector rau kev tawm tswv yim thiab tawm teeb liab. Txhawm rau tshem tawm LF transients los ntawm kev tawm tswv yim thiab cov teeb liab tawm, lub capacitor yuav tsum muab tso rau hauv cov kab nrog cov kab.
