Cov yam ntxwv ntawm High Frequency Switching Power Supply Module
Lub high-frequency switching fais fab mov module yog tsim los ntawm ib tug loj tus naj npawb ntawm resistors, capacitors, hwj chim electronics, thiab lwm yam. Thaum lub sij hawm hloov hluav taws xob cov txheej txheem, qee qhov nyiaj ntawm lub zog poob ib txwm tsim, thiab lub zog poob feem ntau yog dissipated nyob rau hauv daim ntawv ntawm thermal zog, ua rau qhov kub ntawm lub hwj huam mov module nce. Kev kub siab dhau los ua rau muaj kev cuam tshuam loj rau lub neej ntawm lub module. Qhov siab dua qhov kev ua haujlwm kub ntawm lub module, nws qhov kev ua tau zoo thiab kev ntseeg tau qis dua, thiab nws lub neej kev pabcuam luv dua. Yog li ntawd, ntxiv rau kev siv cov txheej txheem kev ntseeg siab hauv Circuit Court, nws tseem yuav tsum xaiv cov txheej txheem cua sov kom tsim nyog kom txo tau qhov kub thiab txias ntawm high-frequency switching power supply modules thiab xyuas kom lawv lub neej kev pab. Tam sim no, high-frequency switching power supply modules siv nyob rau hauv lub hwj chim DC systems mas siv ob txoj kev txias: yuam cua txias thiab ntuj txias.
Cov yam ntxwv ntawm high-frequency switching fais fab mov modules
1. Kev ua haujlwm siab: Ua tiav qhov xoom hluav taws xob thiab xoom tam sim no hloov pauv nyob rau hauv tag nrho cov khoom thauj, kom ntseeg tau tias lub transistor hloov tsis muaj kev xa tawm peaks, tam sim no yog ntshiab sine yoj, thiab kev hloov pauv tsawg tsawg; Lub tso zis rectifier raj muaj qhov tsis tshua muaj hluav taws xob muaj zog thiab tsis muaj qhov rov qab tam sim no.
2. Me me: Lub converter efficiency siab heev, thiab piv nrog cov tsoos pWM switching fais fab mov topology schemes, lub tshav kub dab dej ntim yuav raug txo los ntawm ib nrab.
3. Kev ntseeg siab: Los ntawm kev siv cov txheej txheem kev tsim kho hauv tsev tsim, kev tiv thaiv kev tiv thaiv kev ntsuas, thiab xaiv cov khoom zoo thiab txhim khu kev qha tuaj txawv teb chaws, kev sib xyaw ua ke zoo tshaj plaws ntawm cov hluav taws xob tsis zoo cuam tshuam tau tiav.
4. Ntev lifespan: Vim qhov kub tsis tshua muaj, nws tuaj yeem ncua kev laus ntawm cov khoom, yog li txhim kho cov khoom lag luam lub neej;
Lub hauv paus ntsiab lus ntawm high-frequency switching fais fab mov module
Lub high-frequency hloov module txais passive pFC thev naus laus zis thiab qib siab pulse width modulation tswj thev naus laus zis (pWM), uas txuas ntxiv txhim kho kev ua haujlwm ntawm module thiab txo cov kev sib haum xeeb. Lub module txais ib qho AC peb-theem peb xaim 380VAC sib npaug cov tswv yim, yam tsis muaj qhov tsis zoo tam sim no. Lub module AC input yog rectified rau hauv ib tug pulsating DC voltage los ntawm ib tug ncov suppression Circuit Court thiab EMI nqus Circuit Court, thiab ces hloov mus rau hauv ib tug high-frequency square yoj voltage los ntawm ib tug high-frequency mem tes dav modulation converter los ntawm ib tug tag nrho choj rectification thiab filtering circuit. Qhov ruaj khov tso zis voltage thiab tam sim no tau txais los ntawm cov zis rectification thiab filtering circuit. Thaum daim phiaj voltage thiab load hloov, lub tswv yim kho Circuit Court tswj lub mem tes dav modulation Circuit Court los kho qhov dav ntawm mem tes dav, kom ntseeg tau tias cov zis voltage thiab tam sim no nyob ruaj khov.
