Circuit Court tsim specifications rau ib-chip switching fais fab mov
(1) Lub tswv yim Circuit Court ntawm TOPSwitch-II yuav tsum tau nruab nrog lub photocoupler kom cais tawm ntawm qhov tso zis hluav taws xob. Thaum tsim ib qho kev hloov pauv hloov hluav taws xob, TL431 adjustable precision txuam nrog voltage regulator yuav tsum tau ntxiv los tsim ib qho kev ua yuam kev sab nraud los hloov cov regulator raj hauv qhov piv txwv. Qhov kev hloov pauv voltage Sv thiab qhov hloov pauv tam sim no Sl ntawm qhov hloov pauv hloov hluav taws xob tuaj yeem ncav cuag li ± 0.2 feem pua, uas yog ze rau qhov ntsuas ntawm cov kab sib txuas tswj kev tswj fais fab.
(2) Optocouplers nrog kev hloov pauv hloov pauv tam sim no (CTR) yuav tsum raug xaiv, xws li pC817A, NEC2501, 6N137 thiab lwm yam qauv, thiab 4N × × hom zoo tib yam optocouplers xws li 4N25 thiab 4N35 tsis pom zoo. Cov tom kawg muaj qhov tsis zoo linearity thiab yuav ua rau muaj kev cuam tshuam thaum xa cov cim analog, uas yuav cuam tshuam rau qhov kev tswj xyuas hluav taws xob ntawm kev hloov hluav taws xob.
(3) Thawj sab ntawm lub high-frequency transformer yuav tsum tau nruab nrog ib tug tiv thaiv Circuit Court kom nqus lub ncov voltage tshwm sim los ntawm cov to-inductance thiab xyuas kom meej tias MOSFET tsis puas. Qhov kev tiv thaiv Circuit Court no yuav tsum tau sib txuas ua ke ntawm lub hauv paus, thiab muaj 4 cov qauv tsim tshwj xeeb:
① Lub clamping Circuit Court yog tsim los ntawm cov hluav taws xob hloov hluav taws xob hloov hluav taws xob (TVS) thiab lub zog rov qab sai sai (SRD);
②Clamping Circuit Court tsim los ntawm TVS thiab silicon rectifier (VD);
③ Absorptive Circuit Court muaj li ntawm RC ntsiab thiab SRD;
④ Absorptive Circuit Court muaj li ntawm RC Cheebtsam thiab VD. Ntawm cov txheej txheem saum toj no, cov txiaj ntsig ntawm ① yog qhov zoo tshaj plaws, uas tuaj yeem muab kev ua si tag nrho rau qhov zoo ntawm TVS nrog cov lus teb ceev heev thiab lub zog siab hloov pauv mem tes. Kev xaiv ② yog tom ntej.
(4) Thaum siv cov nti, yuav tsum muaj lub dab dej kom haum. Rau TO-220 pob, nws tuaj yeem txuas ncaj qha rau ntawm lub rooj tsav xwm me me. Rau DIp-8 thiab SMD-8 tej pob khoom, 4 qhov chaw tuaj yeem raug soldered ntawm lub rooj tsav xwm luam ntawv tooj liab nrog thaj tsam ntawm 2.3 los hloov lub dab dej kub.
(5) Txhawm rau txhawm rau txhawm rau cuam tshuam los ntawm daim phiaj hluav taws xob thiab tiv thaiv kev cuam tshuam los ntawm kev hloov hluav taws xob los ntawm kev xa mus rau sab nraud, nws yog ib qho tsim nyog yuav tsum tau ntxiv cov lim dej electromagnetic cuam tshuam thawj zaug (EMI lim) ntawm lub hwj chim. inlet kawg, tseem hu ua lub suab nrov lim (pNF).
(6) Thaum siv hom nti no, cov hlau lead yuav tsum luv li sai tau. Txhawm rau kom ruaj khov ntawm qhov tso zis hluav taws xob ntawm qhov tsis muaj load lossis lub teeb, qhov kev tiv thaiv ntawm ntau pua ohms yuav tsum tau txuas nrog lub chaw tso zis hluav taws xob ntawm cov khoom siv hluav taws xob raws li qhov tsawg kawg nkaus load, lossis lub raj zener tuaj yeem txuas nrog tib lub sijhawm.
