Kev siv txuj ci rau kev siv hluav taws xob txo qis hauv high - fais fab hloov cov khoom siv hluav taws xob
Nyob rau tam sim no, thaum feem ntau hloov fais fab khoom hloov mus los ntawm cov ntsuas hluav taws xob hloov chaw thiab cov khoom siv sib txuas, thiab cov khoom siv sawv ntsug tsis tuaj yeem ua tau raws li cov cai. Qhov no nthuav tawm cov kev cov nyom tshiab rau cov kws tsim hluav taws xob.
Kev tsom xam ntawm kev noj fais fab ntawm hloov fais fab mov
Txhawm rau txo qis kev poob thiab txhim kho cov kev ua tau zoo ntawm hloov hom hwj huam, nws yog ib qho tsim nyog los xyuas cov lus muaj pes tsawg leeg ntawm
Hloov hom fais fab mov ua kom poob. Noj cov flyback fais fab muab ua piv txwv, nws cov kev ua haujlwm poob yog feem ntau ua manifested yog kev poob zoo li mosfet kev poob thiab cov mosfet yuav poob
Hauv hom standby, lub circuit Court tseem ceeb tam sim no yog qhov tsawg, thiab lub sijhawm muaj kev sib txuam nrog hauv DCM, yog li cov kev ua kom muaj zog, thiab lwm yam. Nyob rau lub sijhawm no, kev poob yog suav nrog cab cab yog tsim kev tsim, hloov pauv kev poob, thiab pib ua poob.
Hloov pauv kev poob, PWM maub los thiab nws pib tiv taus lub cev, thiab cov zis kev tiv thaiv kab ke, thiab cov lus pom tseeb ncaj qha rau cov khoom siv ntaus ntawv rau ib lub sijhawm.
Cov hau kev los txhim kho kev ua tau zoo ntawm kev hloov fais fab
Raws li kev soj ntsuam ntawm kev poob, txiav tawm qhov pib resistor, thiab txo tus xov tooj hloov tuaj yeem txo cov neeg sawv ntsug thiab txhim kho cov kev ua tau zoo. Cov hau kev tshwj xeeb suav nrog: txo lub moos ua haujlwm; Hloov los ntawm high - zaus ua haujlwm rau cov mem tes dav (Pul) dav dav kev ua haujlwm rau cov mem tes zaus (PFM); Kev tswj cov mem tes mem tes (burstmode).
Txiav tawm lub resistor
Txog cov hluav taws xob flyback fais fab tuag yog powered los ntawm ib tug auxiliation winding tom qab pib pib yog li 300v. Teeb pib tsis kam mus rau 47K ω thiab haus ze li 2W ntawm lub hwj chim. Txhawm rau txhim kho cov kev ua tau zoo, cov channel tsis kam yuav tsum tau txiav tawm tom qab pib. Sab saum toj, ICE2DS02G muaj lub siab pib pib hluav taws xob sab hauv uas tuaj yeem tua lub resistor tom qab pib. Yog tias tus maub los tsis muaj lub siab pib pib Circuit Court, muaj peev xwm txuas tau rau hauv cov series nrog pib pib tom qab pib yuav txo qis mus rau xoom. Qhov tsis zoo yog tias lub zog muab tsis tau rov pib tau, thiab cov Circuit Court tau tsuas yog rov ua dua tom qab txiav tawm cov tswv yim voltage thiab tawm ntawm lub Capacitor.
