DC hloov hom hluav taws xob khoom siv tau dav siv hauv kev lag luam
Cov kev qhia ntawm DC fais fab mov muab faib ua ob hom: ib qho yog cov yam ntxwv ntsuas, suav nrog kev tso cai nkag voltage, tso zis voltage, tso zis tam sim no thiab tso zis voltage hloov pauv, thiab lwm yam .; Lwm qhov yog qhov ntsuas tau zoo, uas yog siv los ntsuas qhov ntsuas kev ruaj ntseg ntawm qhov tso zis DC voltage, suav nrog qhov ntsuas qhov ntsuas hluav taws xob (lossis qhov hloov pauv voltage), cov zis tsis kam (lossis hloov pauv tam sim no), thiab ripple voltage (nyob ib puag ncig thiab random drift).
DC switching power supply main circuit design
Lub ntsiab Circuit Court ntawm DC switching fais fab mov yog siv los ua kom tiav qhov kev hloov pauv ntawm DC-AC-DC, thiab lub ntsiab Circuit Court ntawm lub system txais ib tug tag nrho-bridge DC-DC converter, raws li qhia nyob rau hauv daim duab 2. Lub hwj chim switching li siv. nyob rau hauv no system yog BSM 50GB120DN2 series IGBT modules, txhua module yog ib nrab-choj qauv, yog li nyob rau hauv tag nrho-bridge system, ob modules yuav tsum tau. Txhua module yog embedded nrog ib tug ceev ceev tam sim no-txuas diode.
DC hloov khoom siv hluav taws xob tau siv dav hauv ntau daim ntawv thov kev lag luam. Hauv kev tsim khoom lag luam (xws li vuam, electroplating lossis DC lub cev muaj zog tswj ceev, thiab lwm yam), yuav tsum muaj ntau qhov voltage adjustable DC fais fab mov, lawv feem ntau xav tau DC fais fab mov uas tuaj yeem kho cov zis hluav taws xob tau yooj yim. Tam sim no, vim qhov ua tau zoo ntawm kev hloov hluav taws xob, miniaturization thiab lwm yam zoo, cov khoom siv hluav taws xob ib txwm muaj, thyristor tswj fais fab mov yog maj hloov los ntawm DC switching tswj fais fab mov. Txoj kev tswj xyuas tseem ceeb ntawm kev hloov hluav taws xob yog siv cov mem tes dav hloov pauv kev sib xyaw ua ke rau cov zis PWM mem tes, thiab siv cov analogue PID regulator rau pulse width modulation, txoj kev tswj no, muaj qee qhov kev ua yuam kev, thiab lub Circuit Court yog qhov nyuaj.
Txoj Cai Ua Haujlwm
DC switching fais fab mov muaj xws li input ib feem, lub hwj chim hloov dua siab tshiab ib feem, tso zis ib feem thiab tswj ib feem. Lub zog hloov dua siab tshiab ib feem yog lub hauv paus ntawm kev hloov hluav taws xob hloov hluav taws xob, uas ua rau cov khoom siv hluav taws xob ntau zaus ntawm DC tsis nyob ruaj ruaj thiab ua tiav cov kev hloov pauv uas xav tau rau cov zis. Nws yog tsuas yog tsim los ntawm kev hloov transistors thiab high-frequency transformers. Daim duab 1 kos lub schematic thiab sib npaug daim duab ntawm DC switching fais fab mov, uas yog tsim los ntawm ib tug tag nrho-yoj rectifier, ib tug switching tube V, ib tug excitation teeb liab, ib tug tam sim no-renewal diode Vp, lub zog cia inductor thiab ib tug filtering capacitor. C. Qhov tseeb, qhov tseem ceeb ntawm DC switching fais fab mov yog DC transformer.
