Dab tsi yog txoj kev tsim ntawm ib qho kev kho tau DC cov khoom siv tau kho tau?
Coob tus neeg tau tshawb pom cov khoom siv hluav taws xob DC cov khoom siv, tab sis qhov no tsis yog. Tsim qauv kho cov DC fais fab tsis yooj yim tsis yog qhov nyuaj, tab sis nws tsis yooj yim kom ua tiav qhov tseeb. Tom qab koj tau pib tiag tiag, koj tuaj yeem yooj yim tau txais kev paub thiab tsim cov kauj ruam los ntawm kauj ruam uas kauj ruam siv cov qauv txiav txim siab. Niaj hnub no, peb yuav qhia koj yuav tsim kho DC fais fab ua tau los ntawm kauj ruam. Thawj kauj ruam ntawm kev tsim kho cov ntaub ntawv siv DC uas tau kho tau yog los tshawb xyuas cov kev qhia tshwj xeeb. Coob leej ntau tus tau tham txog cov ntsiab lus. Niaj hnub no, kuv yuav tham me ntsis txog cov qauv txheej txheem ntawm kev hloov kho ib txwm muaj DC cov khoom siv nrog dav dav dav dav.
1. Ua ntej, txiav txim siab qhov kev ua tau zoo, thiab tom qab ntawd xaiv qhov tsim nyog topology raws li koj cov kev xav tau tshwj xeeb
Qhov kev xaiv ntau no nrog kev siv DC cov khoom siv tau yooj yim tuaj yeem ua tau raws li koj qhov yuav tsum tau ua. Xaiv cov mis ntawm no ntau dua ntawm no. Yog tias koj xav tau kev txheeb xyuas qee qhov, koj tuaj yeem sib tham txog nws.
2. Xaiv PWM IC thiab Mos uas phim cov kev siv hlau ntawm cov sib npaug Circuit Court
Tom qab txiav txim siab los txais yuav cov qauv ntawm Phawm Koj tuaj yeem txiav txim siab rau koj tus kheej seb puas yuav siv nws nyias lossis hauv kev sib xyaw. Phua sab hauv suav suav.
Kev txiav txim siab: Qhov zoo dua ntawm cais sib cais pwm - IC thiab Mos lub hwj chim tuaj yeem hloov kho dawb. Txawm li cas los xij, qhov tsis zoo yog tias (los ntawm kev xav tsim tau) Tus tsim qauv thiab kev debugging yog qhov ntev. Kev sib xyaw: PWM IC thiab MOS tau ua ke rau ib qho. Qhov software pob khoom txuag tau cov kauj ruam thiab kev debugging theem, ua kom haum rau cov chaw ib puag ncig thiab kev loj hlob sai.
3. Tsim kev schematic daim duab
Tom qab lees paub cov xaiv tau xaiv, pib tsim daim duab circharamram (Sch).
Nws yog lub tswv yim zoo los xyuas cov ntaub ntawv tsim nyog cov ntaub ntawv ua ntej tsim los saib cov tsis yooj yim. Txawm hais tias koj xaiv cov kev xaiv pi lossis txiav txim siab xws li 384x lossis obld, koj yuav tsum tshawb cov ntaub ntawv cov ntaub ntawv. Cov ntaub ntawv cov ntaub ntawv feem ntau tuaj nrog cov duab kos hluav taws xob yooj yim uas ua lub hauv paus tsim.
4. Txiav txim siab tsim nyog
Tom qab schematic yog npaj tau, koj yuav tsum txiav txim siab cov teeb meem uas tsim nyog rau cov kauj ruam tom ntej ntawm PCLBLAYOUT. Ntawm chav kawm, cov tuam txhab sib txawv muaj cov txheej txheem sib txawv. Koj yuav tsum ua raws cov txheej txheem tsim nyog thiab tsim kev tsim qauv zoo. Cov kauj ruam no tuaj yeem suav nrog kev tshuaj xyuas preure preure, kev pom zoo rau, thiab lwm yam, thiab suav tuaj yeem ua tau tom qab kev pom zoo ua tiav.
